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Journal articleADAMS GP, ROCHESTER GK, SUMNER TJ, et al., 1987,
THE ULTRAVIOLET CALIBRATION SYSTEM FOR THE UK XUV TELESCOPE TO BE FLOWN ON THE ROSAT SATELLITE
, JOURNAL OF PHYSICS E-SCIENTIFIC INSTRUMENTS, Vol: 20, Pages: 1261-1264, ISSN: 0022-3735- Author Web Link
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- Citations: 7
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Journal articleAlbrecht H, Andam AA, Binder U, et al., 1987,
First observation of γγ → ωϱ0
, Physics Letters B, Vol: 196, Pages: 101-106, ISSN: 0370-2693The reaction γγ → 2π+2π-π0 has been studied using the the ARGUS detector at the e+e- storage ring DORIS II at DESY. The production of the vector-meson pair ωρ{variant}0 is observed for the first time. The cross section for γγ → ωρ{variant}0 and the topological cross section for γγ → 2π+2π-π0 are given. The angular distribution in ωρ{variant}0 events do not indicate any specific dominant spin-parity; they are consistent with isotropic production and decay of the ω and ρ{variant}0 mesons over the available Wγγ range. © 1987.
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Journal articleSUMNER TJ, PENDLEBURY JM, SMITH KF, 1987,
CONVENTIONAL MAGNETIC SHIELDING
, JOURNAL OF PHYSICS D-APPLIED PHYSICS, Vol: 20, Pages: 1095-1101, ISSN: 0022-3727- Author Web Link
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- Citations: 89
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Journal articleAlbrecht H, Andam AA, Binder U, et al., 1987,
Search for the decay τ<sup>-</sup> → v<inf>τ</inf>ηπ<sup>-</sup>
, Physics Letters B, Vol: 195, Pages: 307-310, ISSN: 0370-2693We have searched for the decay τ- → vτηπ- using data accumulated by the ARGUS detector at the e+e- storage ring DORIS II at DESY. No η signal was found in the π+π-π0 subsystems of the decay τ- →vτπ-π-π+ π0. We obtain an upper limit for the branching ratio of the decay τ- → vτηπ- of 1.3% at the 95% confidence level. © 1987.
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Journal articleAlbrecht H, Andam AA, Binder U, et al., 1987,
Search for the decay D<sup>s</sup>→ρ<sup>0</sup>π as evidnce for quark annnihilation
, Physics Letters B, Vol: 195, Pages: 102-106, ISSN: 0370-2693We have searched for the decay D+s→ρ0π+ which can only occur via annihilation of the constituent quarks, and compared it to the decay D+s→ρπ+ where the charm quark may decay independently of the light quark. An upper limit on the ratio BR(D+s→ρ0π+) BR(D+s→ρπ+) of 0.22 at the 90% confidence level is obtained. This result constra ins models which enhance. the weak annihilation contribution to heavy meson decays by final-state interactions, a mechanism used for explaining the large branching ratio observed for D0→ρK0. © 1987.
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Journal articleALBAJAR C, ALBROW MG, ALLKOFER OC, et al., 1987,
PRODUCTION OF WS WITH LARGE TRANSVERSE-MOMENTUM AT THE CERN PROTON-ANTIPROTON COLLIDER
, PHYSICS LETTERS B, Vol: 193, Pages: 389-398, ISSN: 0370-2693- Author Web Link
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- Citations: 39
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Journal articleODELL VR, RANKIN P, YOST GP, et al., 1987,
FORWARD CHARGE ASYMMETRY IN 20-GEV GAMMA-P REACTIONS
, PHYSICAL REVIEW D, Vol: 36, Pages: 1-7, ISSN: 0556-2821- Author Web Link
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- Citations: 6
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Journal articleAlbrecht H, Andam AA, Binder U, et al., 1987,
Observation of B<sup>0</sup>-B<sup>0</sup> mixing
, Physics Letters B, Vol: 192, Pages: 245-252, ISSN: 0370-2693Using the ARGUS detector at the DORIS II storage ring we have searched in three different ways for B0-B0 mixing in Υ{hooked} (4S) decays. One explicitly mixed event, a decay Υ{hooked} (4S)→B0B0, has been completely reconstructed. Furthermore, we observe a 4.0 standard deviation signal of 24.8 events with like-sign lepton pairs and a 3.0 standard deviation signal of 4.1 events containing one reconstructed B0(B0) and an additional fast ℓ+(ℓ)-. This leads to the conclusion that B0-B0 mixing is substantial. For the mixing parameter we obtain r=0.21±0.08. © 1987.
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Journal articleSUMNER TJ, 1987,
A CALCULATION OF THE EFFECT OF A COAXIAL SUPERCONDUCTING SHIELD ON THE MAGNETIC-FIELD DISTRIBUTION OF AN ENCLOSED COAXIAL SOLENOID
, JOURNAL OF PHYSICS D-APPLIED PHYSICS, Vol: 20, Pages: 692-696, ISSN: 0022-3727- Author Web Link
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- Citations: 10
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Journal articleALBROW MG, ARNISON G, BUNN J, et al., 1987,
A URANIUM SCINTILLATOR CALORIMETER WITH PLASTIC-FIBER READOUT
, NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, Vol: 256, Pages: 23-37, ISSN: 0168-9002- Author Web Link
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- Citations: 21
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Journal articleLIEU R, QUENBY JJ, SUMNER TJ, 1987,
CYCLOTRON RADIATION, CONSERVATION-LAWS, AND A CORRECTION TO THE SYNCHROTRON LOSS FORMULA
, ASTRONOMY & ASTROPHYSICS, Vol: 176, Pages: L21-L23, ISSN: 0004-6361- Author Web Link
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- Citations: 1
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Journal articleAlbrecht H, Binder U, Böckmann P, et al., 1987,
Observation of inclusive D<inf>S</inf> production in B meson decay
, Physics Letters B, Vol: 187, Pages: 425-430, ISSN: 0370-2693Using the ARGUS detector at the e+ e- storage ring DORIS II, we have observed inclusive DS production, using the channel DS- → φπ-, in decays of B mesons produced on the Υ{hooked}(4S). The product of branching ratios BR(B→DSX)·BR(DS-→φ π-) is (4.2±0.9±0.6) × 10-3. The DS momentum spectrum suggests a substantial two-body component to the final states of B→DSX decays. © 1987.
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Journal articleALBAJAR C, ALBROW MG, ALLKOFER OC, et al., 1987,
BEAUTY PRODUCTION AT THE CERN PROTON-ANTIPROTON COLLIDER
, PHYSICS LETTERS B, Vol: 186, Pages: 237-246, ISSN: 0370-2693- Author Web Link
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- Citations: 106
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Journal articleALBAJAR C, ALBROW MG, ALLKOFER OC, et al., 1987,
SEARCH FOR B0-BBAR0 OSCILLATIONS AT THE CERN PROTON-ANTIPROTON COLLIDER
, PHYSICS LETTERS B, Vol: 186, Pages: 247-254, ISSN: 0370-2693- Author Web Link
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- Citations: 169
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Journal articleWILLIAMS OR, SUMNER TJ, ROCHESTER GK, et al., 1987,
UPPER LIMIT TO THE THERMAL COEFFICIENT OF THE REFRACTIVE-INDEX OF FUSED-SILICA AT 184.9 NM
, APPLIED OPTICS, Vol: 26, Pages: 774-774, ISSN: 0003-6935- Author Web Link
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- Citations: 4
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Journal articleAlbrecht H, Binder U, Böckmann P, et al., 1987,
Search for lepton-number and lepton-flavour violation in tau decays
, Physics Letters B, Vol: 185, Pages: 228-232, ISSN: 0370-2693We have searched for neutrinoless tau decays into three charged particles as evidence for lepton-flavour or lepton-number violation. The data were collected using the ARGUS detector at the DORIS II storage ring. Tau pairs were produced by e+e- annhilation at centre-of-mass energies near 10 GeV. No evidence for lepton-number or lepton-flavour violation was observed, but the upper limits obtained are an order of magnitude lower than those previously published. © 1987.
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Journal articleALBAJAR C, ALBROW MG, ALLKOFER OC, et al., 1987,
EVENTS WITH LARGE MISSING TRANSVERSE ENERGY AT THE CERN COLLIDER .2. SEARCH FOR THE DECAYS OF W+/-INTO HEAVY-LEPTONS AND OF Z0 INTO NONINTERACTING PARTICLES
, PHYSICS LETTERS B, Vol: 185, Pages: 241-248, ISSN: 0370-2693- Author Web Link
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- Citations: 59
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Journal articleAlbrecht H, Binder U, Böckmann P, et al., 1987,
Evidence for the decay τ<sup>-</sup>→ν<inf>τ</inf>ωπ<sup>-</sup>
, Physics Letters B, Vol: 185, Pages: 223-227, ISSN: 0370-2693Using the ARGUS detector at DORIS II, we have analyzed tau decays into π-π-π+π0ν τ. The branching ratio was determined to be (4.2±0.5±0.9)%. From a study of the three pion sub-system, we find evidence for the decay τ-→ωπ-ντ with a branching ratio of (1.5±0.3±0.3)%. The ωπ- system is found to be predominantly in a JP=1- state. There is no evidence for second-class axial-vector currents. The spectral function for the ωπ- final state is in agreement with a prediction based on CVC and σe+e-→ωπ0. © 1987.
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Journal articleAlbrecht H, Binder U, Böckmann P, et al., 1987,
Reconstruction of B mesons
, Physics Letters B, Vol: 185, Pages: 218-222, ISSN: 0370-2693B mesons have been reconstructed in five decay channels of the type B→D*±nπ(n=1,2,3) using data accumulated by the ARGUS experiment at the e+e- storage ring DORIS II at DESY. In total, we find 40 neutral B mesons above a background of 15±6 events with a mass of (5278.2±1.0±3.0) MeV/c2 and 32 charged B mesons above a background of 17±6 events with a mass of (5275.8±1.3±3.0) MeV/c2. The decays B0D*+π-π0, B0D*+π-π-π+, and B-→D*+π-π-π0 have been observed for the first time. We find substantially smaller branching ratios for the decay modes B0→D*+π- and B-→D*+π-π- than previously published by the CLEO collaboration. © 1987.
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Journal articleALBAJAR C, ALBROW MG, ALLKOFER OC, et al., 1987,
EVENTS WITH LARGE MISSING TRANSVERSE ENERGY AT THE CERN COLLIDER .1. W-]-TAU-NU-DECAY AND TEST OF 7AU-MU-E UNIVERSALITY AT Q2=MW2
, PHYSICS LETTERS B, Vol: 185, Pages: 233-240, ISSN: 0370-2693- Author Web Link
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- Citations: 50
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Journal articleANSELMINO M, LEADER E, 1987,
CAN ANTISYMMETRIZATION EXPLAIN ANN IN PROTON-PROTON ELASTIC-SCATTERING
, PHYSICS LETTERS B, Vol: 184, Pages: 261-262, ISSN: 0370-2693- Author Web Link
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- Citations: 1
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Journal articleHALL G, ROBINSON D, SEEZ C, et al., 1987,
ELECTROMAGNETIC SHOWER POSITION DETECTION WITH A SCINTILLATOR PHOTODIODE HODOSCOPE
, NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, Vol: 253, Pages: 491-499, ISSN: 0168-9002- Author Web Link
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- Citations: 1
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Journal articleBARBER G, BURCHELL M, CATTANEO M, et al., 1987,
OPERATION OF A SILICON VERTEX DETECTOR IN THE NA14 PHOTOPRODUCTION EXPERIMENT
, NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, Vol: 253, Pages: 530-536, ISSN: 0168-9002- Author Web Link
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- Citations: 15
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Journal articleAlbrecht H, Binder U, Böckmann P, et al., 1987,
Observation of octet and decuplet hyperons in e<sup>+</sup>e<sup>-</sup> annihilation at 10 GeV centre-of-mass energy
, Physics Letters B, Vol: 183, Pages: 419-424, ISSN: 0370-2693Results on hyperon production are reported for data accumulated at 10 GeV centre-of-mass energy with the ARGUS detector. Signals for both the octet states Λ, Σ0 and Ξ- and the decuplet states Σ± (1385), Ξ0 (1530) and Ω- are observed 1 (references to a specific state are to be interpreted as also implying the charge conjugate state), some for the first time in e+e- annihilation. Baryon rates from γdir (1S) decays are enhanced by a factor of about 3 over the continuum. © 1987.
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Journal articleAlbrecht H, Binder U, Böckmann P, et al., 1987,
The decay {Mathematical expression}
, Zeitschrift für Physik C Particles and Fields, Vol: 33, Pages: 359-362, ISSN: 0170-9739The decay {Mathematical expression} has been investigated using data accumulated by the ARGUS experiment, which operates at around 10 GeV centre-of-mass energies The decay {Mathematical expression} is a signature for flavor annihilation by W-exchange in weak decays. It is shown that this decay occurs at (15.5±3.3)% of the rate for the well established decay {Mathematical expression}π+π-. This translates into a branching ratio for {Mathematical expression} of (1.18±0.25±0.17)% © 1987 Springer-Verlag.
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Journal articleBoris S, Golutvin A, Laptin L, et al., 1987,
Neutrino mass from the beta spectrum in the decay of tritium
, Physical Review Letters, Vol: 58, Pages: 2019-2022, ISSN: 0031-9007The data from the spectrum measurement of the tritium decay in a valine molecule carried out in a wide energy range (3.4 keV) with the Institute of Theoretical and Experimental Physics spectrometer are analyzed. The combined analysis of both these data and the data of the previous cycle gives the neutrino mass 30.3-8+2 eV. The model-independent mass interval 17<M<40 eV is derived from the mass difference of the doublet H3-He3. © 1987 The American Physical Society.
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ReportSood RK, Thomas J, Waldron L, et al., 1987,
SN 1987A in the Large Magellanic Cloud
, IAU Circular, 4405 -
ReportUbertini P, Bazzano A, la Padula C, et al., 1987,
SN 1987A in the Large Magellanic Cloud
, IAU Cicular, 4387 -
Journal articleBARATE R, BAREYRE P, BLOCH D, et al., 1987,
MEASUREMENT OF J/PSI AND PSI'-REAL PHOTOPRODUCTION ON LI-6 AT A MEAN ENERGY OF 90 GEV
, ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, Vol: 33, Pages: 505-512, ISSN: 0170-9739- Author Web Link
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- Citations: 64
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Journal articleALBAJAR C, ALBROW MG, ALLKOFER OC, et al., 1987,
ANALYSIS OF THE HIGHEST TRANSVERSE ENERGY EVENTS SEEN IN THE UA-1 DETECTOR AT THE SPPS COLLIDER
, ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, Vol: 36, Pages: 33-43, ISSN: 0170-9739- Author Web Link
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- Citations: 19
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