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• Journal article
  ALBAJAR C, ALBROW MG, ALLKOFER OC, ASTBURY A, AUBERT B, AXON T, BACCI C, BACON T, BAINS N, BATLEY JR, BAUER G, BEINGESSNER S, BETTINI A, BEZAGUET A, BONINO R, BOS K, BOTLO M, BUCKLEY E, BUSETTO G, CAVANNA P, CENNINI P, CENTRO S, CERADINI F, CHARLTON DG, CIAPETTI G, CITTOLIN S, CLARKE D, CLINE D, COCHET C, COLAS J, COLAS P, CORDEN M, COUGHLAN JA, COX G, DAU D, DEBRION JP, DEGIORGI M, DELLANEGRA M, DEMOULIN M, DENEGRI D, DICIACCIO A, HEDO FJD, DOBRZYNSKI L, DORENBOSCH J, DOWELL JD, DUCHOVNI E, EGGERT K, EISENHANDLER E, ELLIS N, ERHARD P, FAISSNER H, FENSOME IF, FERRANDO A, FINCKEKEELER M, FLYNN P, FONTAINE G, GARVEY J, GEER S, GEISER A, GHESQUIERE C, GHEZ P, GHIGLINO C, GIRAUDHERAUD Y, GIVERNAUD A, GONIDEC A, GRASSMANN H, GREGORY JM, HAYNES W, HAYWOOD SJ, HOLTHUIZEN DJ, IKEDA M, JANK W, JIMACK M, JORAT G, JOYCE D, KALMUS PIP, KARIMAKI V, KEELER R, KENYON I, KERNAN A, KHAN A, KIENZLE W, KINNUNEN R, KRAMMER M, KROLL J, KRYN D, LACAVA F, LANDON M, LEES JP, LEUCHS R, LEVEGRUN S, LI S, LINDGREN M, LINGLIN D, LIPA P, LOCCI E, MARKIEWICZ T, MARKOU C, MARKYTAN M, MARQUINA MA, MAURIN G, MENDIBURU JP, MENEGUZZO A, MERLO JP, MEYER T, MINARD MN, MOHAMMADI M, MORGAN K, MOSER HG, MOULIN A, MOURS B, MULLER T, NAUMANN L, NEDELEC P, NISATI A, NORTON A, ODELL V, PAUSS F, PERAULT C, PETROLO E, MORTARI GP, PIETARINEN E, PIGOT C, PIMIA M, PLACCI A, PORTE JP, PREISCHL M, RADERMACHER E, REDELBERGER T, REITHLER H, REVOL JP, ROBINSON D, RODRIGO T, ROHLF J, RUBBIA C, SAJOT G, SALVINI G, SASS J, SAMYN D, SCHINZEL D, SCHRODER M, SCHWARTZ A, SCOTT W, SEEZ C, SHAH TP, SHEER I, SIOTIS I, SMITH D, SOBIE R, SPHICAS P, STUBENRAUCH C, SUMMERS D, SUMOROK K, SZONCSO F, TAO C, TAUROK A, TENHAVE I, TETHER S, THOMPSON G, TSCHESLOG E, TUOMINIEMI J, VANDEGUCHTE W, VANDIJK A, VANEIJK B, VIALLE JP, VILLASENOR L, VIRDEE TS, VONSCHLIPPE W, VRANA J, VUILLEMIN V, WACKER K, WALZEL G, WILDISH A, WINGERTER I, WIMPENNY SJ, WU X, WULZ CE, YVERT M, ZACCARDELLI C, ZACHAROV I, ZAGANIDIS N, ZANELLO L, ZOTTO Pet al., 1988,

  MEASUREMENT OF THE BOTTOM QUARK PRODUCTION CROSS-SECTION IN PROTON-ANTIPROTON COLLISIONS AT SQUARE-ROOT-S=0.63 TEV

  , PHYSICS LETTERS B, Vol: 213, Pages: 405-412, ISSN: 0370-2693
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  • Citations: 74
• Journal article
  Albrecht H, Böckmann P, Gläser R, Harder G, Krüger A, Nippe A, Schäfer M, Schmidt-Parzefall W, Schröder H, Schulz HD, Sefkow F, Spengler J, Wurth R, Yagil A, Appuhn RD, Drescher A, Hast C, Kamp D, Kolanoski H, Lindner A, Mankel R, Matthiesen U, Scheck H, Schweda G, Spaan B, Walther A, Wegener D, Gabriel JC, Ruf T, Schael S, Schubert KR, Stiewe J, Strahl K, Waldi R, Werner S, Edwards KW, Frisken WR, Kapitza H, Kutschke R, Macfarlane DB, McLean KW, Nilsson AW, Orr RS, Parsons JA, Patel PM, Prentice JD, Seidel SC, Swain JD, Tsipolitis G, Yoon TS, Ammar R, Ball S, Coppage D, Davis R, Kanekal S, Kwak N, Boštjančič B, Kernel G, Križan P, Križnič E, Pleško M, Cronström HI, Jönsson L, Babaev A, Danilov M, Fominykh B, Golutvin A, Gorelov I, Lubimov V, Rostovtsev A, Semenov A, Semenov S, Shevchenko V, Soloshenko V, Tchistilin V, Tichomirov I, Zaitsev Y, Childers R, Darden CW, Fernholz RCet al., 1988,

  First observation of γ→K^*+K^*-

  , Physics Letters B, Vol: 212, Pages: 528-532, ISSN: 0370-2693

  The final states KS0KS0π+π - and KS0K∓ π0π±, produced in two-photon reactions, have been studied using the ARGUS detector at the e+e- storage ring DORIS II at DESY. The reaction γγ→K*+K*- has been observed for the first time. Its cross section is about eight times larger than that for γγ→K*0K*0, but it has a similar Wγγ dependence. © 1988.

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  • Citations: 16
• Journal article
  SOOD RK, THOMAS JA, WALDRON L, MANCHANDA RK, UBERTINI P, BAZZANO A, LAPADULA C, STAUBERT R, KENDZIORRA E, ROCHESTER GK, SUMNER TJ, FRYE G, JENKINS T, KOGA R, ALBATS Pet al., 1988,

  UPPER LIMITS TO THE HIGH-ENERGY GAMMA-RAY AND HARD X-RAY FLUX FROM SN-1987A ON DAY 55

  , MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, Vol: 234, Pages: P73-P77, ISSN: 0035-8711
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  • Citations: 4
• Journal article
  Albrecht H, Böckmann P, Gläser R, Harder G, Krüger A, Nippe A, Schäfer M, Schmidt-Parzefall W, Schröder H, Schulz HD, Sefkow F, Spengler J, Wurth R, Yagil A, Appuhn RD, Drescher A, Kamp D, Kolanoski H, Matthiesen U, Scheck H, Schweda G, Spaan B, Walther A, Wegener D, Gabriel JC, Ruf T, Schubert KR, Stiewe J, Strahl K, Waldi R, Werner S, Edwards KW, Frisken WR, Gilkinson DJ, Gingrich DM, Kapitza H, Kutschke R, Macfarlane DB, McLean W, Nilsson AW, Orr RS, Parsons JA, Patel PM, Prentice JD, Seidel SC, Seywerd HCJ, Swain JD, Tsipolitis G, Yoon TS, Ammar R, Ball S, Coppage D, Davis R, Kanekal S, Kwak N, Boštjančič B, Kernel G, Križan P, Jönsson L, Babaev A, Danilov M, Fominykh B, Golutvin A, Gorelov I, Lubimov V, Matveev V, Semenov A, Semenov S, Shevchenko V, Soloshenko V, Tchistilin V, Tichomirov I, Zaitsev Y, Childers R, Darden CW, Fernholz RCet al., 1988,

  Observation of the charmed Baryon Σ<inf>c</inf> in e⁺e^- annihilations

  , Physics Letters B, Vol: 211, Pages: 489-492, ISSN: 0370-2693

  Using the ARGUS detector at the DORIS II storage ring, we have observed the charmed baryons Σc++ and Σc0, through their decays to Λc+π±. We have measured the mean Σc-Λc+ mass difference as 167.6±0.3±1.6 MeV/c2. The isospin mass splitting between the Σc++ and the Σc0 was found to be 1.2±0.7±0.3 MeV/c2. The rate of Λc+ production from Σc decays was found to be (36±12±11)% of the total rate of Λc+ production. The Σc χp spectrum was observed to be similar to that of the Λc+, with a Peterson function parameter ε{lunate} of 0.29±0.06. © 1988.

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  • Citations: 30
• Journal article
  Albrecht H, Böckmann P, Gläser R, Harder G, Krüger G, Nippe A, Schäfer M, Schmidt-Parzefall W, Schröder H, Schulz HD, Sefkow F, Spengler J, Wurth R, Yagil A, Appuhn RD, Drescher A, Kamp D, Kolanoski H, Matthiesen U, Scheck H, Schweda G, Spaan B, Walther A, Wegener D, Gabriel JC, Ruf T, Schubert KR, Stiewe J, Strahl K, Waldi R, Werner S, Edwards KW, Frisken WR, Gilkinson DJ, Gingrich DM, Kapitza H, Kutschke R, Macfarlane DB, McLean W, Nilsson AW, Orr RS, Parsons JA, Patel PM, Prentice JD, Swain JD, Tsipolitis G, Yoon TS, Ammar R, Ball S, Coppage D, Davis R, Kanekal S, Kwak N, Boštjančič B, Kernel G, Križan P, Jönsson L, Babaev A, Danilov M, Fominykh B, Golutvin A, Gorelov I, Lubimov V, Matveev V, Semenov A, Semenov S, Shevchenko V, Soloshenko V, Tchistilin V, Tichomirov I, Zaitsev Y, Childers R, Darden CW, Fernholz RCet al., 1988,

  A search for ωφ and φφ production in the reactions γγ→K⁺K^-π⁺π^-π⁰ and γγ→2K⁺2K^-

  , Physics Letters B, Vol: 210, Pages: 273-277, ISSN: 0370-2693

  The reaction γγ→K+K-π+π- π0 has been observed for the first time, using the ARGUS detector at the e+e- storage ring DORIS II at DESY. The cross section shows an enhancement for Wγγ close to 3 GeV/c2. Searches for γγ→ωφ and for γγ→φφ leading to this final state, as well as for γγ→φφ→2K+2K-, have been performed. The derived upper limits for ωφ and φφ production are compatible with qqqq model predictions. © 1988.

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  • Citations: 11
• Journal article
  Albrecht H, Böckmann P, Gläser R, Harder G, Krüger A, Nippe A, Schäfer M, Schmidt-Parzefall W, Schröder H, Schulz HD, Sefkow F, Spengler J, Wurth R, Yagil A, Appuhn RD, Drescher A, Kamp D, Kolanoski H, Matthiesen U, Scheck H, Schweda G, Spaan B, Walter A, Wegner D, Gabriel JC, Ruf T, Schubert KR, Stiewe J, Strahl K, Waldi R, Werner S, Edwards KW, Frisken WR, Gilkinson DJ, Gingrich DM, Kapitza H, Kutschke R, Macfarlane DB, McLean W, Nilsson AW, Orr RS, Parsons JA, Patel PM, Prentice JD, Seidel SC, Seywerd HCJ, Swain JD, Tsipolitis G, Yoon TS, Ammar R, Ball S, Coppage D, Davis R, Kanekal S, Kwak N, Boštjančič B, Kernel G, Križan P, Jönsson L, Babaev A, Danilov M, Fominykh B, Golutvin A, Gorelov I, Lubimov V, Matveev V, Semenov A, Semenov S, Shevchenko V, Soloshenko V, Tchistilin V, Tichomirov I, Zaitsev Y, Childers R, Darden CW, Fernholz RCet al., 1988,

  Lifetimes of charmed mesons

  , Physics Letters B, Vol: 210, Pages: 267-272, ISSN: 0370-2693

  Using the ARGUS detector at the e+e- storage ring DORIS II at DESY, we have measured the lifetimes of the D0, D+ and D+S mesons. We find τD0 = (4.8±0.4±0.3) × 10-13 s, τD+ = (10.5±0.8±0.7) × 10-13 s and τD +S = (5.6+1.3-1.2±0.8) × 10-13 s. © 1988.

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  • Citations: 7
• Journal article
  Albrecht H, Böckmann P, Gläser R, Harder G, Krüger A, Nippe A, Schäfer M, Schmidt-Parzefall W, Schröder H, Schulz HD, Sefkow F, Spengler J, Wurth R, Yagil A, Appuhn RD, Drescher A, Kamp D, Kolanoski H, Matthiesen U, Scheck H, Schweda G, Spaan B, Walther A, Wegener D, Gabriel JC, Ruf T, Schubert KR, Stiewe J, Strahl K, Waldi R, Werner S, Edwards KW, Frisken WR, Gilkinson DJ, Gingrich DM, Kapitza H, Kim PCH, Kutschke R, Macfarlane DB, McKenna JA, McLean KW, Nilsson AW, Orr RS, Padley P, Parsons JA, Patel PM, Prentice JD, Seywerd HCJ, Swain JD, Tsipolitis G, Yoon TS, Yun JC, Ammar R, Ball S, Coppage D, Davis R, Kanekal S, Kwak N, Boštjančič B, Kernel G, Križan P, Jönsson L, Babaev A, Danilov M, Fominykh B, Golutvin A, Gorelov I, Lubimov V, Matveev V, Ryltsov V, Semenov A, Shevchenko V, Soloshenko V, Tchistilin V, Tichomirov I, Zaitsev Y, Childers R, Darden CW, Fernholz RCet al., 1988,

  Observation of inclusive B meson decays into Λ<inf>c</inf>⁺ Baryons

  , Physics Letters B, Vol: 210, Pages: 263-266, ISSN: 0370-2693

  We report the first direct observation of B meson decays into Λc+ baryons using the decay channel Λc+ → pK-π+. The product of branching ratios Br(B→Λc+X)·Br(Λc +→pK-π+ = (0.30±0.12±0.06)% is derived from an observed signal of 208±89 events. Using previous measurements of inclusive baryon rates we find a branching ratio for Λc+ → pK-π+ of (4.1±2.4)%. The measured Λc+ momentum spectrum indicates that the multi-particle final states dominate the decay B→Λc+X. © 1988.

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  • Citations: 30
• Journal article
  Albrecht H, Böckmann P, Gläser R, Harder G, Krüger A, Nippe A, Schäfer M, Schmidt-Parzefall W, Schröder H, Schulz HD, Sefkow F, Spengler J, Wurth R, Yagil A, Appuhn RD, Drescher A, Kamp D, Kolanoski H, Mankel R, Matthiesen U, Scheck H, Schweda G, Spaan B, Walther A, Wegener D, Gabriel JC, Ruf T, Schael S, Schubert KR, Stiewe J, Strahl K, Waldi R, Werner S, Edwards KW, Frisken WR, Gilkinson DJ, Gingrich DM, Kapitza H, Kutschke R, Macfarlane DB, McLean KW, Nilsson AW, Orr RS, Parsons JA, Patel PM, Prentice JD, Seidel SC, Swain JD, Tsipolitis G, Yoon TS, Ammar R, Ball S, Coppage D, Davis R, Kanekal S, Kwak N, Boštjančič B, Kernel G, Križan P, Križnič E, Jönsson L, Babaev A, Danilov M, Fominykh B, Golutvin A, Gorelov I, Lubimov V, Matveev V, Semenov A, Semenov S, Shevchenko V, Soloshenko V, Tchistilin V, Tichomirov I, Zaitsev Y, Childers R, Darden CW, Fernholz RCet al., 1988,

  Search for the decay B → K^*γ

  , Physics Letters B, Vol: 210, Pages: 258-262, ISSN: 0370-2693

  Using the ARGUS detector at the e+e- storage ring DORIS II at DESY, a search for the decays B→K*γ has been made. The following upper limits were derived at 90% CL: BR(B→K*(892)γ)<2.4×10-4, BR(B→K1(1400)γ)<4. -4, BR(B→K2*(1430)γ)<8.3×10 -4 and BR(B→K3* (1780)γ)<3.0×10-3. © 1988.

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  • Citations: 14
• Journal article
  ALBAJAR C, ALBROW MG, ALLKOFER OC, ASTBURY A, AUBERT B, AXON T, BACCI C, BACON T, BAINS N, BATLEY JR, BAUER G, BEINGESSNER S, BETTINI A, BEZAGUET A, BONINO R, BOS K, BUCKLEY E, BUSETTO G, CATZ P, CENNINI P, CENTRO S, CERADINI F, CHARLTON DG, CIAPETTI G, CITTOLIN S, CLARKE D, CLINE D, COCHET C, COLAS J, COLAS P, CORDEN M, COUGHLAN JA, COX G, DAU D, DEBRION JP, DEGIORGI M, DELLANEGRA M, DEMOULIN M, DENEGRI D, DICIACCIO A, HEDO FJD, DOBRZYNSKI L, DORENBOSCH J, DOWELL JD, DUCHOVNI E, EGGERT K, EISENHANDLER E, ELLIS N, ERHARD P, FAISSNER H, FENSOME IF, FERRANDO A, FINCKEKEELER M, FLYNN P, FONTAINE G, GARVEY J, GEE D, GEER S, GEISER A, GHESQUIERE C, GHEZ P, GHIGLINO C, GIRAUDHERAUD Y, GIVERNAUD A, GONIDEC A, GRASSMANN H, GREGORY JM, HAYNES W, HAYWOOD SJ, HOLTHUIZEN DJ, IKEDA M, JANK W, JIMACK M, JORAT G, JOYCE D, KALMUS PIP, KARIMAKI V, KEELER R, KENYON I, KERNAN A, KHAN A, KIENZLE W, KINNUNEN R, KRAMMER M, KROLL J, KRYN D, LACAVA F, LANDON M, LEES JP, LEUCHS R, LEVEGRUN S, LI S, LINDGREN M, LINGLIN D, LIPA P, LOCCI E, MARKIEWICZ T, MARKOU C, MARKYTAN M, MARQUINA MA, MAURIN G, MENDIBURU JP, MENEGUZZO A, MERLO JP, MEYER T, MINARD MN, MOHAMMADI M, MORGAN K, MOSER HG, MOULIN A, MOURS B, MULLER T, NAUMANN L, NEDELEC P, NISATI A, NORTON A, PAUSS F, PERAULT C, PETROLO E, MORTARI GP, PIETARINEN E, PIGOT C, PIMIA M, PLACCI A, PORTE JP, PREISCHL M, RADERMACHER E, REDELBERGER T, REITHLER H, REVOL JP, ROBINSON D, RODRIGO T, ROHLF J, RUBBIA C, SAJOT G, SALVINI G, SASS J, SAMYN D, SCHINZEL D, SCHRODER M, SCHWARTZ A, SCOTT W, SEEZ C, SHAH TP, SHEER I, SIOTIS I, SMITH D, SOBIE R, SPHICAS P, STRAUSS J, STREETS J, STUBENRAUCH C, SUMMERS D, SUMOROK K, SZONCSO F, TAO C, TAUROK A, TENHAVE I, TETHER S, THOMPSON G, TSCHESLOG E, TUOMINIEMI J, VANDEGUCHTE W, VANDIJK A, VANEIJK B, VIALLE JP, VILLASENOR L, VIRDEE TS, VONSCHLIPPE W, VRANA J, VUILLEMIN V, WACKER K, WALZEL G, WILDISH A, WINGERTER I, WIMPENNY SJ, WU X, WULZ CE, WYATT T, YVERT M, ZACCARDELLI C, ZACHAROV I, ZAGANIDIS N, ZANELLO L, ZOTTOet al., 1988,

  DIRECT PHOTON PRODUCTION AT THE CERN PROTON ANTIPROTON COLLIDER

  , PHYSICS LETTERS B, Vol: 209, Pages: 385-396, ISSN: 0370-2693
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  • Citations: 62
• Journal article
  ALBAJAR C, ALBROW MG, ALLKOFER OC, ASTBURY A, AUBERT B, AXON T, BACCI C, BACON T, BAINS N, BATLEY JR, BAUER G, BEINGESSNER S, BETTINI A, BEZAGUET A, BONINO R, BOS K, BUCKLEY E, BUSETTO G, CATZ P, CENNINI P, CENTRO S, CERADINI F, CHARLTON DG, CIAPETTI G, CITTOLIN S, CLARKE D, CLINE D, COCHET C, COLAS J, COLAS P, CORDEN M, COUGHLAN JA, COX G, DAU D, DEBRION JP, DEGIORGI M, DELLANEGRA M, DEMOULIN M, DENEGRI D, DICIACCIO A, HEDO FJD, DOBRZYNSKI L, DORENBOSCH J, DOWELL JD, DUCHOVNI E, EGGERT K, EISENHANDLER E, ELLIS N, ERHARD P, FAISSNER H, FENSOME IF, FERRANDO A, FINCKEKEELER M, FLYNN P, FONTAINE G, GARVEY J, GEE D, GEER S, GEISER A, GHESQUIERE C, GHEZ P, GHIGLINO C, GIRAUDHERAUD Y, GIVERNAUD A, GONIDEC A, GRASSMANN H, GREGORY JM, HAYNES W, HAYWOOD SJ, HOLTHUIZEN DJ, IKEDA M, JANK W, JIMACK M, JORAT G, JOYCE D, KALMUS PIP, KARIMAKI V, KEELER R, KENYON I, KERNAN A, KHAN A, KIENZLE W, KINNUNEN R, KRAMMER M, KROLL J, KRYN D, LACAVA F, LAMMEL S, LANDON M, LEES JP, LEUCHS R, LEVEGRUN S, LI S, LINDGREN M, LINGLIN D, LIPA P, LOCCI E, MARKIEWICZ T, MARKOU C, MARKYTAN M, MARQUINA MA, MAURIN G, MENDIBURU JP, MENEGUZZO A, MERLO JP, MEYER T, MINARD MN, MOHAMMADI M, MORGAN K, MOSER HG, MOULIN A, MOURS B, MULLER T, NAUMANN L, NEDELEC P, NISATI A, NORTON A, PAUSS F, PERAULT C, PETROLO E, MORTARI GP, PIETARINEN E, PIGOT C, PIMIA M, PLACCI A, PORTE JP, PREISCHL M, RADERMACHER E, REDELBERGER T, REITHLER H, REVOL JP, ROBINSON D, RODRIGO T, ROHLF J, RUBBIA C, SAJOT G, SALVINI G, SASS J, SAMYN D, SCHINZEL D, SCHRODER M, SCHWARTZ A, SCOTT W, SEEZ C, SHAH TP, SHEER I, SIOTIS I, SMITH D, SOBIE R, SPHICAS P, STRAUSS J, STREETS J, STUBENRAUCH C, SUMMERS D, SUMOROK K, SZONCSO F, TAO C, TAUROK A, TENHAVE I, TETHER S, THOMPSON G, TSCHESLOG E, TUOMINIEMI J, VANDEGUCHTE W, VANDIJK A, VANEIJK B, VIALLE JP, VILLASENOR L, VIRDEE TS, VONSCHLIPPE W, VRANA J, VUILLEMIN V, WACKER K, WALZEL G, WILDISH A, WINGERTER I, WIMPENNY SJ, WU X, WULZ CE, WYATT T, YVERT M, ZACCARDELLI C, ZACHAROV I, ZAGANIDIS N, ZANELLet al., 1988,

  LOW MASS DIMUON PRODUCTION AT THE CERN PROTON ANTIPROTON COLLIDER

  , PHYSICS LETTERS B, Vol: 209, Pages: 397-406, ISSN: 0370-2693
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  • Citations: 37
• Journal article
  Albrecht H, Böckmann P, Gläser R, Harder G, Krüger A, Nippe A, Schäfer M, Schmidt-Parzefall W, Schröder H, Schulz HD, Sefkow F, Spengler J, Wurth R, Yagil A, Appuhn RD, Drescher A, Kamp D, Kolanoski H, Matthiesen U, Scheck H, Schweda G, Spaan B, Walther A, Wegener D, Gabriel JC, Ruf T, Schubert KR, Stiewe J, Strahl K, Waldi R, Werner S, Edwards KW, Frisken WR, Gilkinson DJ, Gingrich DM, Kapitza H, Kutschke R, Macfarlane DB, McLean KW, Nilsson AW, Orr RS, Parsons JA, Patel PM, Prentice JD, Swain JD, Tsipolits G, Yoon TS, Ammar R, Ball S, Coppage D, Davis R, Kanekal S, Kwak N, Boštjančič B, Kernel G, Križan P, Križnič E, Jönsson L, Babaev A, Danilov M, Fominykh B, Golutvin A, Gorelov I, Lubimov V, Matveev V, Semenov A, Semenov S, Shevchenko V, Soloshenko V, Tchistilin V, Tichomirov I, Zaitsev Y, Childers R, Darden CW, Fernholz RCet al., 1988,

  Search for D⁰ decays into lepton pairs

  , Physics Letters B, Vol: 209, Pages: 380-384, ISSN: 0370-2693

  We have searched for the lepton flavour-violating decay D0→μ±e∓ and for the rate decays D0μ+μ-, e+e- detector at the e+e- storage ring DORIS II. No candidates were found, leading to the upper limits BR (D0→μ+μ-)<7×10 - BR (D0→e+-)<1.7 × 10-4, and BR (D0→μ±e-+)<1.0 × 10-4 at 90 % confidence level. © 1988.

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  • Citations: 8
• Journal article
  ALBAJAR C, ALBROW MG, ALLKOFER OC, ASTBURY A, AUBERT B, AXON T, BACCI C, BACON T, BAINS N, BATLEY JR, BAUER G, BEINGESSNER S, BETTINI A, BEZAGUET A, BONINO R, BOS K, BUCKLEY E, BUSETTO G, CATZ P, CENNINI P, CENTRO S, CERADINI F, CHARLTON DG, CIAPETTI G, CITTOLIN S, CLARKE D, CLINE D, COCHET C, COLAS J, COLAS P, CORDEN M, COUGHLAN JA, COX G, DAU D, DEBRION JP, DEGIORGI M, DELLANEGRA M, DEMOULIN M, DENEGRI D, DICIACCIO A, HEDO FJD, DOBRZYNSKI L, DORENBOSCH J, DOWELL JD, DUCHOVNI E, EGGERT K, EISENHANDLER E, ELLIS N, ERHARD P, FAISSNER H, FENSOME IF, FERRANDO A, FINCKEKEELER M, FLYNN P, FONTAINE G, GARVEY J, GEE D, GEER S, GEISER A, GHESQUIERE C, GHEZ P, GHIGLINO C, GIRAUDHERAUD Y, GIVERNAUD A, GONIDEC A, GRASSMANN H, GREGORY J, HAYNES W, HAYWOOD SJ, HOLTHUIZEN DJ, IKEDA M, JANK W, JIMACK M, JORAT G, JOYCE D, KALMUS PIP, KARIMAKI V, KEELER R, KENYON I, KERNAN A, KHAN A, KIENZLE W, KINNUNEN R, KRAMMER M, KROLL J, KRYN D, LACAVA F, LANDON M, LEES JP, LEUCHS R, LEVEGRUN S, LI S, LINDGREN M, LINGLIN D, LIPA P, LOCCI E, MARKIEWICZ T, MARKOU C, MARKYTAN M, MARQUINA MA, MAURIN G, MENDIBURU JP, MENEGUZZO A, MERLO JP, MEYER T, MINARD MN, MOHAMMADI M, MORGAN K, MOSER HG, MOULIN A, MOURS B, MULLER T, NAUMANN L, NEDELEC P, NISATI A, NORTON A, PAUSS F, PERAULT C, PETROLO E, MORTARI GP, PIETARINEN E, PIGOT C, PIMIA M, PLACCI A, PORTE JP, PREISCHL M, RADERMACHER E, REDELBERGER T, REITHLER H, REVOL JP, ROBINSON D, RODRIGO T, ROHLF J, RUBBIA C, SAJOT G, SALVINI G, SASS J, SAMYN D, SCHINZEL D, SCHRODER M, SCHWARTZ A, SCOTT W, SEEZ C, SHAH TP, SHEER I, SIOTIS I, SMITH D, SOBIE R, SPHICAS P, STRAUSS J, STREETS J, STUBENRAUCH C, SUMMERS D, SUMOROK K, SZONCSO F, TAO C, TAUROK A, TENHAVE I, TETHER S, THOMPSON G, TSCHESLOG E, TUOMINIEMI J, VANDEGUCHTE W, VANDIJK A, VANEIJK B, VIALLE JP, VILLASENOR L, VIRDEE TS, VONSCHLIPPE W, VRANA J, VUILLEMIN V, WACKER K, WALZEL G, WILDISH A, WINGERTER I, WIMPENNY SJ, WU X, WULZ CE, WYATT T, YVERT M, ZACCARDELLI C, ZACHAROV I, ZAGANIDIS N, ZANELLO L, ZOTTOet al., 1988,

  2-JET MASS DISTRIBUTIONS AT THE CERN PROTON-ANTIPROTON COLLIDER

  , PHYSICS LETTERS B, Vol: 209, Pages: 127-134, ISSN: 0370-2693
  • Author Web Link
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  • Citations: 50
• Journal article
  Albrecht H, Böckmann P, Gläser R, Harder G, Krüger A, Nippe A, Schäfer M, Schmidt-Parzefall W, Schröder H, Schulz HD, Sefkow F, Spengler J, Wurth R, Yagil A, Appuhn RD, Drescher A, Kamp D, Kolanoski H, Mankel R, Matthiesen U, Scheck H, Schweda G, Spaan B, Walther A, Wegener D, Gabriel JC, Ruf T, Schael S, Schubert KR, Stiewe J, Strahl K, Waldi R, Werner S, Edwards KW, Frisken WR, Gilkinson DJ, Gingrich DM, Kapitza H, Kutschke R, Macfarlane DB, McLean KW, Nilsson AW, Orr RS, Parsons JA, Patel PM, Prentice JD, Seidel SC, Swain JD, Tsipolitis G, Yoon TS, Ammar R, Ball S, Coppage D, Davis R, Kanekal S, Kwak N, Boštjančič B, Kernel G, Križan P, Križnič E, Jönsson L, Babaev A, Danilov M, Fominykh B, Golutvin A, Gorelov I, Lubimov V, Matveev V, Semenov A, Semenov S, Shevchenko V, Soloshenko V, Tchistilin V, Tichomirov I, Zaitsev Y, Childers R, Darden CW, Fernholz RCet al., 1988,

  Observation of charmless B meson decays

  , Physics Letters B, Vol: 209, Pages: 119-126, ISSN: 0370-2693

  Using the ARGUS detector at the e+e- storage ring DORIS II, we have observed charmless decays of B mesons into the final states pp̄π± and pp̄π+π-. The significance of the signal corresponds to more than five standard deviations. The branching ratios are (5.2±1.4±1.9)×10-4 for the three-body and (6.0±2.0±2.2)×10-4 for the four-body final state. These decays cannot proceed via the dominant b→c transitions, and we show that they are not the result of penguin-type processes. Thus, the observed decays must represent b→u quark transitions. Consequently, the Kobayashi-Maskawa matrix element Vub is non-zero. © 1988.

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  • Citations: 63
• Journal article
  Albrecht H, Binder U, Böckmann P, Gläser R, Harder G, Krüger A, Nippe A, Schäfer M, Schmidt-Parzefall W, Schröder H, Schulz HD, Sefkow F, Wurth R, Yagil A, Appuhn RD, Donker JP, Drescher A, Kamp D, Kolanoski H, Matthiesen U, Scheck H, Schweda G, Spaan B, Spengler J, Walther A, Wegener D, Gabriel JC, Ruf T, Schubert KR, Stiewe J, Strahl K, Waldi R, Werner S, Edwards KW, Frisken WR, Gilkinson DJ, Gingrich DM, Kapitza H, Kim PCH, Kutschke R, Macfarlane DB, McKenna JA, McLean KW, Nilsson AW, Orr RS, Padley P, Parsons JA, Patel PM, Prentice JD, Seywerd HCJ, Swain JD, Tsipolitis G, Yoon TS, Yun JC, Ammar R, Ball S, Coppage D, Davis R, Kanekal S, Kwak N, Boštjančič B, Kernel G, Križan P, Pleško M, Jönsson L, Babaev A, Danilov M, Fominykh B, Golutvin A, Gorelov I, Lubimov V, Matveev V, Ryltsov V, Semenov A, Shevchenko V, Soloshenko V, Tchistilin V, Tichomirov I, Zaitsev Y, Childers R, Darden CW, Fernholz RC, Oku Yet al., 1988,

  Measurement of D^*<inf>s</inf>-D<inf>s</inf> mass difference

  , Physics Letters B, Vol: 207, Pages: 349-354, ISSN: 0370-2693

  Using the ARGUS detector at DORIS, we observe the production of D*+s mesons in e+e- annihilation through their subsequent decays to a D+s and a photon. Photons which convert in the beam pipe or drift chamber inner wall are used to obtain a high precision measurement of the D*+s-D+s mass difference, while photons detected in the shower counters are used to determine the production cross section, and to provide an independent measurement of the D*+s-D+s mass difference. The observed D*+s- D+s mass difference is 142.5±0.8±1.5 MeV/c2, and σ(e+e-→D*+s X)·BR(D*+s→D+s γ)(·BR(D+s →φπ+) is 4.4±1.1±1.0 pb at 10.2 GeV. The width of the D*+s is less than 4.5 MeV/c2 at 90% confidence level. © 1988.

  • Abstract
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  • Citations: 10
• Journal article
  Albrecht H, Böckmann P, Gläser R, Harder G, Krüger A, Nippe A, Schäfer M, Schmidt-Parzefall W, Schröder H, Schulz HD, Sefkow F, Spengler J, Wurth R, Yagil A, Appuhn RD, Drescher A, Kamp D, Kolanoski H, Matthiesen U, Scheck H, Schweda G, Spaan B, Walther A, Wegener D, Ehmann C, Gabriel JC, Ruf T, Schubert KR, Stiewe J, Strahl K, Waldi R, Werner S, Edwards KW, Frisken WR, Gilkinson DJ, Gingrich DM, Kapitza H, Kim PCH, Kutschke R, Macfarlane DB, McKenna JA, McLean KW, Nilsson AW, Orr RS, Padley P, Parsons JA, Patel PM, Prentice JD, Seywerd HCJ, Swain JD, Tsipolitis G, Yoon TS, Yun JC, Ammar R, Ball S, Coppage D, Davis R, Kanekal S, Kwak N, Boštjančič B, Kernel G, Križan P, Pleško M, Jönsson L, Babaev A, Danilov M, Fominykh B, Golutvin A, Gorelov I, Lubimov V, Matveev V, Semenov A, Semenov S, Shevchenko V, Soloshenko V, Tchistilin V, Tichomirov I, Zaitsev Y, Childers R, Darden CW, Fernholz RC, Oku Yet al., 1988,

  Observation of the charmed baryon Λ<inf>c</inf> in e⁺e^- annihilation at 10 GeV

  , Physics Letters B, Vol: 207, Pages: 109-114, ISSN: 0370-2693

  Using the ARGUS detector at DORIS II, we have studied the production of the charmed baryon Λc in e+e- annihilation at centre-of-mass energies near 10 GeV. The Λc+ was seen in the three decay modes pK-π+, Λπ+π-π+ and K̄0p, with products of normalized cross section times branching ratio [R·Br] of (10.8±1.4±1.2)×10-3, 6.6±1.5±0.9)×10-3 and (6.7±1.4±0.8)×10-3 respectively. The measured mass for the Λc was (2283.1±1.7±2.0) MeV/c2. A limit on the decay rates to Λπ+ is reported. The fragmentation function of the Λc was measured. © 1988.

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  • Citations: 53
• Report
  Ubertini P, Bazzano A, la Padula C, Sood R, Waldron L, Frye G, Koga R, Rochester G, Sumner TJ, Staubert R, Kendziorra Eet al., 1988,

  Supernova 1987a in the Large Magellanic Cloud

  , IAU Circular, Publisher: IAU, 4590
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• Journal article
  LITKE A, ADOLPHSEN C, SCHWARZ AS, TURALA M, STEINER A, BREAKSTONE A, PARKER S, LUTH V, BARNETT B, DAUNCEY P, DREWER Det al., 1988,

  A SILICON STRIP VERTEX DETECTOR FOR THE MARK-II EXPERIMENT AT THE SLAC LINEAR COLLIDER

  , NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, Vol: 265, Pages: 93-98, ISSN: 0168-9002
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  • Citations: 6
• Journal article
  ALBROW MG, APSIMON R, AUBERT B, BACCI C, BEZAGUET A, BONINO R, CENNINI P, CENTRO S, CERADINI F, COCHET C, COLAS J, CONTE R, DEBRION JP, DEGIORGI M, DICIACCIO A, DIEZHEDO F, DOWELL JD, DUMPS L, GHEZ P, GIVERNAUD A, GONIDEC A, KIENZLE W, LACAVA F, LOOTEN A, MARKIEWICZ T, MARKOU C, MAURIN G, MENEGUZZO A, MULLER T, MUNOZ R, NAUMANN L, OCHSENBEIN S, PETROLO E, PIGOT C, PLACCI A, PRIPSTEIN M, RADERMACHER E, ROBINSON D, RUBBIA C, SASS J, SCHINZEL D, SCHMIDT WF, SEEZ C, SEIDL W, STREETS J, SUMOROK K, VENEZIANO S, VIRDEE TS, WARMUTH E, ZANELLO Let al., 1988,

  PERFORMANCE OF A URANIUM TETRAMETHYLPENTANE ELECTROMAGNETIC CALORIMETER

  , NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, Vol: 265, Pages: 303-318, ISSN: 0168-9002
  • Author Web Link
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  • Citations: 53
• Journal article
  Albrecht H, Binder U, Böckmann P, Gläser R, Harder G, Krüger A, Nippe A, Schäfer M, Schmidt-Parzefall W, Schröder H, Schulz HD, Sefkow F, Wurth R, Yagil A, Appuhn RD, Donker JP, Drescher A, Kamp D, Kolanoski H, Matthiesen U, Scheck H, Schweda G, Spaan B, Spengler J, Walther A, Wegener D, Gabriel JC, Ruf T, Schubert KR, Stiewe J, Strahl K, Waldi R, Edwards KW, Frisken WR, Gilkinson DJ, Gingrich DM, Kapitza H, Kim PCH, Kutschke R, Macfarlane DB, McKenna JA, McLean KW, Nilsson AW, Orr RS, Padley P, Parsons JA, Patel PM, Prentice JD, Seywerd HCJ, Swain JD, Tsipolitis G, Yoon TS, Yun JC, Ammar R, Ball S, Coppage D, Davis R, Kanekal S, Kwak N, Boštjančič B, Kernel G, Križan P, Jönsson L, Babaev A, Danilov M, Fominykh B, Golutvin A, Gorelov I, Lubimov V, Matveev V, Ryltsov V, Semenov A, Shevchenko V, Soloshenko V, Tchistilin V, Tichomirov I, Zaitsev Y, Childers R, Darden CW, Fernholz RC, Oku Yet al., 1988,

  An improved upper limit on the ν<inf>τ</inf>-mass from the decay π^-→π^-π^-π^- π⁺π⁺ν<inf>τ</inf>

  , Physics Letters B, Vol: 202, Pages: 149-153, ISSN: 0370-2693

  Using the ARGUS detector at the e+e- storage ring DORIS II, we have observed the decay τ-→π-π-π- π+π+ντ in tau-pair events produced at center-or-mass energies between 9.4 and 10.6 GeV. From the 5π invariant mass distribution we derive an upper limit of m(ντ)<35 MeV/c2 at the 95% confidence level. The branching ratio for this decay channel is found to be (0.064±0.023±0.01)%. © 1988.

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  • Citations: 71
• Journal article
  DAUNCEY P, BARNETT BA, DREWER D, MATTHEWS JAJ, BREAKSTONE A, PARKER S, ADOLPHSEN C, GRATTA G, LITKE A, SCHWARZ AS, TURALA M, JACOBSEN R, LUTH Vet al., 1988,

  RADIATION-DAMAGE STUDIES OF A CUSTOM-DESIGNED VLSI READOUT CHIP

  , IEEE TRANSACTIONS ON NUCLEAR SCIENCE, Vol: 35, Pages: 166-170, ISSN: 0018-9499
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  • Citations: 1
• Journal article
  ADOLPHSEN C, GRATTA G, LITKE A, SCHWARZ A, TURALA M, BREAKSTONE A, PARKER S, BARNETT B, DAUNCEY P, DREWER D, JACOBSEN R, LUTH Vet al., 1988,

  STATUS OF THE SILICON STRIP VERTEX DETECTOR FOR THE MARK-II EXPERIMENT AT THE SLC

  , IEEE TRANSACTIONS ON NUCLEAR SCIENCE, Vol: 35, Pages: 424-427, ISSN: 0018-9499
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  • Citations: 10
• Conference paper
  Sood RK, Thomas J, Waldron L, Manchandra RK, Ubertini P, Bazzano A, la Padula C, Rochester G, Sumner TJ, Frye G, Jenkins T, Koga R, Albats Pet al., 1988,

  50-500 MeV gamma-ray emission in the early phase of SN1987A

  , New York, Nuclear Spectroscopy of Astrophysical Sources, Publisher: AIPC, Pages: 80-86
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• Journal article
  ALBAJAR C, ALBROW MG, ALLKOFER OC, ASTBURY A, AUBERT B, AXON T, BACCI C, BACON T, BAINS N, BATLEY JR, BAUER G, BEINGESSNER S, BELLINGER J, BETTINI A, BEZAGUET A, BONINO R, BOS K, BUCKLEY E, BUSETTO G, CATZ P, CENNINI P, CENTRO S, CERADINI F, CHARLTON DG, CIAPETTI G, CITTOLIN S, CLARKE D, CLINE D, COCHET C, COLAS J, COLAS P, CORDEN M, COUGHLAN JA, COX G, DAU D, DEBEER M, DEBRION JP, DEGIORGI M, DELLANEGRA M, DEMOULIN M, DENBY B, DENEGRI D, DICIACCIO A, HEDO FJD, DOBRZYNSKI L, DORENBOSCH J, DOWELL JD, DUCHOVNI E, EDGECOCK R, EGGERT K, EISENHANDLER E, ELLIS N, ERHARD P, FAISSNER H, FENSOME IF, FERRANDO A, FINCKEKEELER M, FLYNN P, FONTAINE G, GARVEY J, GEE D, GEER S, GEISER A, GHESQUIERE C, GHEZ P, GHIGLINO C, GIRAUDHERAUD Y, GIVERNAUD A, GONIDEC A, GRASSMANN H, GRAYER G, HAYNES W, HAYWOOD SJ, HOLTHUIZEN DJ, HONMA A, IKEDA M, JANK W, JIMACK M, JORAT G, KALMUS PIP, KARIMAKI V, KEELER R, KENYON I, KERNAN A, KHAN A, KIENZLE W, KINNUNEN R, KRAMMER M, KROLL J, KRYN D, LACAVA F, LANDON M, LAUGIER JP, LEES JP, LEUCHS R, LEVEGRUN S, LI S, LINGLIN D, LOCCI E, LONG K, MARKIEWICZ T, MARKOU C, MARKYTAN M, MARQUINA MA, MAURIN G, MENDIBURU JP, MENEGUZZO A, MERLO JP, MEYER T, MINARD MN, MOHAMMADI M, MORGAN K, MORICCA M, MOSER HG, MOURS B, MULLER T, NANDI A, NAUMANN L, NEDELEC P, NISATI A, NORTON A, PAUSS F, PERAULT C, PETROLO E, MORTARI GP, PIETARINEN E, PIGOT C, PIMIA M, PLACCI A, PORTE JP, PREISCHL M, RADERMACHER E, REDELBERGER T, REITHLER H, REVOL JP, RICHMAN J, ROBINSON D, RODRIGO T, ROHLF J, ROSSI P, RUBBIA C, RUHM W, SAJOT G, SALVINI G, SASS J, SAMYN D, SAVOYNAVARRO A, SCHINZEL D, SCHRODER M, SCHWARTZ A, SCOTT W, SEEZ C, SHAH TP, SHEER I, SIOTIS I, SMITH D, SOBIE R, SPHICAS P, STRAUSS J, STREETS J, STUBENRAUCH C, SUMMERS D, SUMOROK K, SZONCSO F, TAO C, TAUROK A, TENHAVE L, TETHER S, THOMPSON G, TSCHESLOG E, TUOMINIEMI J, VANDIJK A, VANEIJK B, VIALLE JP, VILLASENOR L, VIRDEE TS, VONDERSCHMITT H, VONSCHLIPPE W, VRANA J, VUILLEMIN V, WACKER K, WALZEL G, WATKINS P, WILDISH A, WILSONet al., 1988,

  HIGH TRANSVERSE-MOMENTUM J/PSI-PRODUCTION AT THE CERN PROTON-ANTIPROTON COLLIDER

  , PHYSICS LETTERS B, Vol: 200, Pages: 380-390, ISSN: 0370-2693
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  • Citations: 33
• Journal article
  Seez CJ, 1988,

  Limits on the masses of supersymmetric particles from UA 1 events with large missing transverse energy

  , Nuclear Physics B (Proceedings Supplements), Vol: 1, Pages: 369-375, ISSN: 0920-5632

  A sample of events with large missing transverse energy, taken in the UA 1 detector and representing an integrated luminosity of 715 nb-1, is used to set limits on the masses of squarks and gluinos. We find m q ̃ > 45 GeV/c2 at 90% CL, independent of the gluino mass, and m g ̃> 53 GeV/c2 independent of squark mass, provided that the gluino is not long-lived. If m q ̃ = m g ̃ = m we find m > 75 GeV/c2. © 1988.

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• Journal article
  Albrecht H, Böckmann P, Gläser R, Harder G, Krüger A, Nippe A, Schäfer M, Schmidt-Parzefall W, Schröder H, Schulz HD, Sefkow F, Spengler J, Wurth R, Yagil A, Appuhn RD, Drescher A, Hast C, Kamp D, Kolanoski H, Lindner A, Mankel R, Mathiesen U, Scheck H, Schweda G, Spaan B, Walther A, Wegener D, Gabriel JC, Ruf T, Schael S, Schubert KR, Stiewe J, Strahl K, Waldi R, Werner S, Edwards KW, Frisken WR, Kapitza H, Kutschke R, MacFarlane DB, McLean KW, Nilsson AW, Orr RS, Parsons JA, Patel PM, Prentice JD, Seidel SC, Swain JD, Tsipolitis G, Yoon TS, Ammar R, Ball S, Coppage D, Davis R, Kanekal S, Kwak N, Bostjančič B, Kernel G, Križan P, Križnič E, Pleško M, Cronström HI, Jönsson L, Babaev A, Danilov M, Fominykh B, Golutvin A, Gorelov I, Lubimov V, Rostovtsev A, Semenov A, Semenov S, Shevchenko V, Soloshenko V, Tchistilin V, Tichomirov I, Zaitsev Y, Childers R, Darden CW, Fernholz RCet al., 1988,

  Measurement of the decays τ^-→K^{{star operator}-}v<inf>τ</inf> and τ^-→ρ^-v<inf>τ</inf>

  , Zeitschrift für Physik C Particles and Fields, Vol: 41, Pages: 1-5, ISSN: 0170-9739

  Using the ARGUS detector at DORIS II, we have determined the branching ratios for the decays τ-→K*-vτ and τ-→ρ-vτ to be (1.23 ±0.21-0.21+0.11)% and (21.5±0.4±1.9)%, respectively. These results are in agreement with theoretical expectations based on the standard model. © 1988 Springer-Verlag.

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  • Citations: 10
• Journal article
  Albrecht H, Böckmann P, Gläser R, Harder G, Krüger A, Nippe A, Schäfer M, Schmidt-Parzefall W, Schröder H, Schulz HD, Sefkow F, Spengler J, Wurth R, Yagil A, Appuhn RD, Drescher A, Kamp D, Kolanoski H, Matthiesen U, Scheck H, Schweda G, Spaan B, Walther A, Wegener D, Gabriel JC, Ruf T, Schubert KR, Stiewe J, Strahl K, Waldi R, Werner S, Edwards KW, Frisken WR, Gilkinson DJ, Gingrich DM, Kapitza H, Kutschke R, MacFarlane DB, McLean W, Nilsson AW, Orr RS, Parsons JA, Patel PM, Prentice JD, Swain JD, Tsipolitis G, Yoon TS, Ammar R, Ball S, Coppage D, Davis R, Kanekal S, Kwak N, Boštjančič B, Kernel G, Križan P, Jönsson L, Babaev A, Danilov M, Fominykh B, Golutvin A, Gorelov I, Lubimov V, Matveev V, Semenov A, Semenov S, Shevchenko V, Soloshenko V, Tchistilin V, Tichomirov I, Zaitsev Y, Childers R, Darden CW, Fernholz RCet al., 1988,

  Hyperon production in e⁺e^--annihilation at 10 GeV center of mass energy

  , Zeitschrift für Physik C Particles and Fields, Vol: 39, Pages: 177-186, ISSN: 0170-9739

  The production cross sections for the Λ, Σ0, Ξ-, Σ0 (1385), Ξ0 (1530) and Ω- hyperons have been measured, both in the continuum and in direct Υ{hooked} decays. Baryon rates in direct Υ{hooked} decays are enhanced by a factor of 2.5 or more compared to the continuum. Such a large baryon enhancement cannot be explained by standard fragmentation models. The strangeness suppression for baryons and mesons turns out to be the same. A strong suppression of spin 3/2 states is observed. © 1988 Springer-Verlag.

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  • Citations: 35
• Journal article
  Albrecht H, Böckmann P, Gläser R, Harder G, Krüger A, Nippe A, Reidenbach M, Schäfer M, Schmidt-Parzefall W, Schröder H, Schulz HD, Sefkow F, Spengler J, Wurth R, Yagil A, Appuhn RD, Drescher A, Hast C, Kamp D, Kolanoski H, Lindner A, Mankel R, Matthiesen U, Scheck H, Schweda G, Spaan B, Walther A, Wegener D, Funk W, Gabriel JC, Stiewe J, Werner S, Edwards KW, Frisken WR, Kapitza H, Kutschke R, MacFarlane DB, McLean KW, Nilsson AW, Orr RS, Parsons JA, Patel PM, Prentice JD, Seidel SC, Swain JD, Tsipolitis G, Yoon TS, Ammar R, Ball S, Coppage D, Davis R, Kanekal S, Kwak N, Ruf T, Schael S, Schubert KR, Strahl K, Waldi R, Boštjančič B, Kernel G, Križan P, Križnič E, Pleško M, Cronström HI, Jönsson L, Babaev A, Danilov M, Fominykh B, Golutvin A, Gorelov I, Lubimov V, Rostovtsev A, Semenov A, Semenov S, Shevchenko V, Soloshenko V, Tchistilin V, Tichomirov I, Zaitsev Y, Childers R, Darden CW, Fernholz RCet al., 1988,

  Upper limits for the decay of τ-leptons into η-mesons

  , Zeitschrift für Physik C Particles and Fields, Vol: 41, Pages: 405-411, ISSN: 0170-9739

  The production of η-mesons in τ-decays has been studied with the ARGUS detector at the DORIS II storage ring. τ+τ- events were selected by their characteristic 1-versus-3 charged particle topology. The π+π- invariant mass distribution was used to search for evidence of η production in τ-decays. No signal was observed, leading to upper limits at 95% CL of Br(τ-→ηπ-π0vτ)<1.1%, Br(τ-→ηηπ-vτ)<0.8%, Br(τ-→ηηπ-π0vτ)<0.9% and Br(τ-→ηπ-π0π0vτ)<1.2%. A search for the decay τ-→ηπ-vτ, where the π0 from the decay η→π+π-π0 is also reconstructed, yield an upper limit at 95% CL of Br(τ-→ηπ-vτ)<0.9%. In addition, the inclusive value (1.65±0.3±0.2)% for Br(τ-→ωX-vτ) follows from this analysis. © 1988 Springer-Verlag.

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  • Citations: 7
• Journal article
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