Imperial College London
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Alexander Tapper

Faculty of Natural Sciences, Department of Physics

Professor of Physics
 
 
 
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Contact

 

+44 (0)20 7594 1551a.tapper Website

 
 
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Location

 

508Blackett LaboratorySouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Khachatryan:2017:10.1016/j.physletb.2017.02.010,
author = {Khachatryan, V and Sirunyan, AM and Tumasyan, A and Adam, W and Asilar, E and Bergauer, T and Brandstetter, J and Brondolin, E and Dragicevic, M and Eroe, J and Flechl, M and Friedl, M and Fruehwirth, R and Ghete, VM and Hartl, C and Hoermann, N and Hrubec, J and Jeitler, M and Koenig, A and Kraetschmer, I and Liko, D and Matsushita, T and Mikulec, I and Rabady, D and Rad, N and Rahbaran, B and Rohringer, H and Schieck, J and Strauss, J and Treberer-Treberspurg, W and Waltenberger, W and Wulz, C-E and Mossolov, V and Shumeiko, N and Gonzalez, JS and Alderweireldt, S and De, Wolf EA and Janssen, X and Lauwers, J and Van, De Klundert M and Van, Haevermaet H and Van, Mechelen P and Van, Remortel N and Van, Spilbeeck A and Abu, Zeid S and Blekman, F and D'Hondt, J and Daci, N and De, Bruyn I and Deroover, K and Heracleous, N and Lowette, S and Moortgat, S and Moreels, L and Olbrechts, A and Python, Q and Tavernier, S and Van, Doninck W and Van, Mulders P and Van, Parijs I and Brun, H and C},
doi = {10.1016/j.physletb.2017.02.010},
journal = {PHYSICS LETTERS B},
pages = {57--80},
title = {Search for narrow resonances in dilepton mass spectra in proton-proton collisions at root s=13 TeV and combination with 8 TeV data},
url = {http://dx.doi.org/10.1016/j.physletb.2017.02.010},
volume = {768},
year = {2017}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - A search for narrow resonances in dielectron and dimuon invariant mass spectra has been performed using data obtained from proton–proton collisions at collected with the CMS detector. The integrated luminosity for the dielectron sample is 2.7 fb−1 and for the dimuon sample 2.9 fb−1. The sensitivity of the search is increased by combining these data with a previously analyzed set of data obtained at and corresponding to a luminosity of 20 fb−1. No evidence for non-standard-model physics is found, either in the 13 TeV data set alone, or in the combined data set. Upper limits on the product of production cross section and branching fraction have also been calculated in a model-independent manner to enable interpretation in models predicting a narrow dielectron or dimuon resonance structure. Limits are set on the masses of hypothetical particles that could appear in new-physics scenarios. For the particle, which arises in the sequential standard model, and for the superstring inspired particle, 95% confidence level lower mass limits for the combined data sets and combined channels are found to be 3.37 and 2.82 TeV, respectively. The corresponding limits for the lightest Kaluza–Klein graviton arising in the Randall–Sundrum model of extra dimensions with coupling parameters 0.01 and 0.10 are 1.46 and 3.11 TeV, respectively. These results significantly exceed the limits based on the 8 TeV LHC data.
AU  - Khachatryan,V
AU  - Sirunyan,AM
AU  - Tumasyan,A
AU  - Adam,W
AU  - Asilar,E
AU  - Bergauer,T
AU  - Brandstetter,J
AU  - Brondolin,E
AU  - Dragicevic,M
AU  - Eroe,J
AU  - Flechl,M
AU  - Friedl,M
AU  - Fruehwirth,R
AU  - Ghete,VM
AU  - Hartl,C
AU  - Hoermann,N
AU  - Hrubec,J
AU  - Jeitler,M
AU  - Koenig,A
AU  - Kraetschmer,I
AU  - Liko,D
AU  - Matsushita,T
AU  - Mikulec,I
AU  - Rabady,D
AU  - Rad,N
AU  - Rahbaran,B
AU  - Rohringer,H
AU  - Schieck,J
AU  - Strauss,J
AU  - Treberer-Treberspurg,W
AU  - Waltenberger,W
AU  - Wulz,C-E
AU  - Mossolov,V
AU  - Shumeiko,N
AU  - Gonzalez,JS
AU  - Alderweireldt,S
AU  - De,Wolf EA
AU  - Janssen,X
AU  - Lauwers,J
AU  - Van,De Klundert M
AU  - Van,Haevermaet H
AU  - Van,Mechelen P
AU  - Van,Remortel N
AU  - Van,Spilbeeck A
AU  - Abu,Zeid S
AU  - Blekman,F
AU  - D'Hondt,J
AU  - Daci,N
AU  - De,Bruyn I
AU  - Deroover,K
AU  - Heracleous,N
AU  - Lowette,S
AU  - Moortgat,S
AU  - Moreels,L
AU  - Olbrechts,A
AU  - Python,Q
AU  - Tavernier,S
AU  - Van,Doninck W
AU  - Van,Mulders P
AU  - Van,Parijs I
AU  - Brun,H
AU  - Caillol,C
AU  - Clerbaux,B
AU  - De,Lentdecker G
AU  - Delannoy,H
AU  - Fasanella,G
AU  - Favart,L
AU  - Goldouzian,R
AU  - Grebenyuk,A
AU  - Karapostoli,G
AU  - Lenzi,T
AU  - Leonard,A
AU  - Luetic,J
AU  - Maerschalk,T
AU  - Marinov,A
AU  - Randle-conde,A
AU  - Seva,T
AU  - Vander,Velde C
AU  - Vanlaer,P
AU  - Yonamine,R
AU  - Zenoni,F
AU  - Zhang,F
AU  - Cimmino,A
AU  - Cornelis,T
AU  - Dobur,D
AU  - Fagot,A
AU  - Garcia,G
AU  - Gul,M
AU  - Poyraz,D
AU  - Salva,S
AU  - Schofbeck,R
AU  - Sharma,A
AU  - Tytgat,M
AU  - Van,Driessche W
AU  - Yazgan,E
AU  - Zaganidis,N
AU  - Bakhshiansohi,H
AU  - Beluffi,C
AU  - Bondu,O
AU  - Brochet,S
AU  - Bruno,G
AU  - Caudron,A
AU  - De,Visscher S
AU  - Delaere,C
AU  - Delcourt,M
AU  - Francois,B
AU  - Giammanco,A
AU  - Jafari,A
AU  - Jez,P
AU  - Komm,M
AU  - Lemaitre,V
AU  - Magitteri,A
AU  - Mertens,A
AU  - Musich,M
AU  - Nuttens,C
AU  - Piotrzkowski,K
AU  - Quertenmont,L
AU  - Selvaggi,M
AU  - Marono,MV
AU  - Wertz,S
AU  - Beliy,N
AU  - Alda,Junior WL
AU  - Alves,FL
AU  - Alves,GA
AU  - Brito,L
AU  - Hensel,C
AU  - Moraes,A
AU  - Pol,ME
AU  - Rebello,Teles P
AU  - Belchior,Batista Das Chagas E
AU  - Carvalho,W
AU  - Chinellato,J
AU  - Custodio,A
AU  - Da,Costa EM
AU  - Da,Silveira GG
AU  - De,Jesus Damiao D
AU  - De,Oliveira Martins C
AU  - Fonseca,De Souza S
AU  - Huertas,Guativa LM
AU  - Malbouisson,H
AU  - Matos,Figueiredo D
AU  - Mora,Herrera C
AU  - Mundim,L
AU  - Nogima,H
AU  - Prado,Da Silva WL
AU  - Santoro,A
AU  - Sznajder,A
AU  - Tonelli,Manganote EJ
AU  - Vilela,Pereira A
AU  - Ahuja,S
AU  - Bernardes,CA
AU  - Dogra,S
AU  - Fernandez,Perez Tomei TR
AU  - Gregores,EM
AU  - Mercadante,PG
AU  - Moon,CS
AU  - Novaes,SF
AU  - Padula,SS
AU  - Romero,Abad D R
DO  - 10.1016/j.physletb.2017.02.010
EP  - 80
PY  - 2017///
SN  - 0370-2693
SP  - 57
TI  - Search for narrow resonances in dilepton mass spectra in proton-proton collisions at root s=13 TeV and combination with 8 TeV data
T2  - PHYSICS LETTERS B
UR  - http://dx.doi.org/10.1016/j.physletb.2017.02.010
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000400677700010&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - http://hdl.handle.net/10044/1/48978
VL  - 768
ER  -
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