Imperial College London

Professor Sir Tejinder Singh Virdee FRS

Faculty of Natural SciencesDepartment of Physics

Professor of Physics
 
 
 
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Contact

 

+44 (0)20 7594 7590t.virdee Website

 
 
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Location

 

506Blackett LaboratorySouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Sirunyan:2018:epjc/s10052-018-5567-9,
author = {Sirunyan, AM and Tumasyan, A and Adam, W and Ambrogi, F 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 Grossmann, J and Hrubec, J and Jeitler, M and Koenig, A and Krammer, N and Kraetschmer, I and Liko, D and Madlener, T and Mikulec, I and Pree, E and Rabady, D and Rad, N and Rohringer, H and Schieck, J and Schoefbeck, R and Spanring, M and Spitzbart, D and Waltenberger, W and Wittmann, J and Wulz, C-E and Zarucki, M and Chekbovsky, V and Mossolov, V and Gonzalez, JS and Abu, Zeid S and Blekman, E and D'Hondt, J and De, Bruyn I and De, Clercq J and Deroover, K and Fiouris, G and Lontkovskyi, D and Lowette, S and Moortgat, S and Moreels, L and Python, Q and Skovpen, K and Tavernier, S and Van, Doninck W and Van, Mulders P and Van, Parijs I and Brun, H and Clerbaux, B and De, Lentdecker G and Delannoy, H and Fasanella, G and Favart, L and Goldouzian, R and Grebenyuk, A and Ka},
doi = {epjc/s10052-018-5567-9},
journal = {European Physical Journal C: Particles and Fields},
title = {Measurements of the pp → ZZ production cross section and the Z → 4 branching fraction, and constraints on anomalous triple gauge couplings at √s = 13TeV},
url = {http://dx.doi.org/10.1140/epjc/s10052-018-5567-9},
volume = {78},
year = {2018}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - Four-lepton production in proton-proton collisions, pp→(Z/γ∗)(Z/γ∗)→4 , where =e or μ , is studied at a center-of-mass energy of 13 TeV with the CMS detector at the LHC. The data sample corresponds to an integrated luminosity of 35.9 fb−1 . The ZZ production cross section, σ(pp→ZZ)=17.2±0.5(stat)±0.7(syst)±0.4(theo)±0.4(lumi) pb , measured using events with two opposite-sign, same-flavor lepton pairs produced in the mass region 60<m+−<120GeV , is consistent with standard model predictions. Differential cross sections are measured and are well described by the theoretical predictions. The Z boson branching fraction to four leptons is measured to be B(Z→4)=4.8±0.2(stat)±0.2(syst)±0.1(theo)±0.1(lumi)×10−6 for events with a four-lepton invariant mass in the range 80<m4<100GeV and a dilepton mass m>4GeV for all opposite-sign, same-flavor lepton pairs. The results agree with standard model predictions. The invariant mass distribution of the four-lepton system is used to set limits on anomalous ZZZ and ZZ γ couplings at 95% confidence level: −0.0012<fZ4<0.0010 , −0.0010<fZ5<0.0013 , −0.0012<fγ4<0.0013 , −0.0012<fγ5<0.0013 .
AU - Sirunyan,AM
AU - Tumasyan,A
AU - Adam,W
AU - Ambrogi,F
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 - Grossmann,J
AU - Hrubec,J
AU - Jeitler,M
AU - Koenig,A
AU - Krammer,N
AU - Kraetschmer,I
AU - Liko,D
AU - Madlener,T
AU - Mikulec,I
AU - Pree,E
AU - Rabady,D
AU - Rad,N
AU - Rohringer,H
AU - Schieck,J
AU - Schoefbeck,R
AU - Spanring,M
AU - Spitzbart,D
AU - Waltenberger,W
AU - Wittmann,J
AU - Wulz,C-E
AU - Zarucki,M
AU - Chekbovsky,V
AU - Mossolov,V
AU - Gonzalez,JS
AU - Abu,Zeid S
AU - Blekman,E
AU - D'Hondt,J
AU - De,Bruyn I
AU - De,Clercq J
AU - Deroover,K
AU - Fiouris,G
AU - Lontkovskyi,D
AU - Lowette,S
AU - Moortgat,S
AU - Moreels,L
AU - Python,Q
AU - Skovpen,K
AU - Tavernier,S
AU - Van,Doninck W
AU - Van,Mulders P
AU - Van,Parijs I
AU - Brun,H
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 - Luetic,J
AU - Maerschalk,T
AU - Marinov,A
AU - Randle-Conde,A
AU - Seva,T
AU - Velde,CV
AU - Vanlaer,P
AU - Vannerom,D
AU - Yonamine,R
AU - Zenoni,F
AU - Zhang,F
AU - Cimmino,A
AU - Cornelis,T
AU - Dobur,D
AU - Fagot,A
AU - Gul,M
AU - Khvasttnov,I
AU - Poyraz,D
AU - Roskas,C
AU - Salva,S
AU - Tytgat,M
AU - Verbeke,W
AU - Zaganidis,N
AU - Bakhshiansohi,H
AU - Bondu,O
AU - Brochet,S
AU - Bruno,G
AU - Caputo,C
AU - Caudron,A
AU - De,Visscher S
AU - Delaere,C
AU - Delcourt,M
AU - Francois,B
AU - Giammanco,A
AU - Jafari,A
AU - Komm,M
AU - Krintiras,G
AU - Lemaitre,V
AU - Magitteri,A
AU - Mertens,A
AU - Musich,M
AU - Piotrzkowski,K
AU - Quertenmont,L
AU - Marono,MV
AU - Wertz,S
AU - Belly,N
AU - Alda,Junior WL
AU - Alves,FL
AU - Alves,GA
AU - Brito,L
AU - Correa,Martins Junior M
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 - Fonseca,De Souza S
AU - Huertas,Guativa LM
AU - Malbouisson,H
AU - Melo,De Almeida M
AU - Mora,Herrera C
AU - Mundim,L
AU - Nogima,H
AU - Santoro,A
AU - Sznajder,A
AU - Tonelli,Manganote EJ
AU - Torres,Da Silva De Araujo F
AU - Vilela,Pereira A
AU - Ahuja,S
AU - Bernardes,CA
AU - Tomei,TRFP
AU - Gregores,EM
AU - Mercadante,PG
AU - Novaes,SF
AU - Padula,SS
AU - Abad,DR
AU - Vargas,JCR
AU - Aleksandrov,A
AU - Hadjiiska,R
AU - Iaydjiev,P
AU - Misheva,M
AU - Rodozov,M
AU - Shopova,M
AU - Stoykova,S
AU - Sultanov,G
AU - Dimitrov,A
AU - Glushkov,I
AU - Litov,L
AU - Pavlov,B
AU - Petkov,P
AU - Fang,W
AU - Gao,X
AU - Ahmad,M B
DO - epjc/s10052-018-5567-9
PY - 2018///
SN - 1434-6044
TI - Measurements of the pp → ZZ production cross section and the Z → 4 branching fraction, and constraints on anomalous triple gauge couplings at √s = 13TeV
T2 - European Physical Journal C: Particles and Fields
UR - http://dx.doi.org/10.1140/epjc/s10052-018-5567-9
UR - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000426484600003&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR - http://hdl.handle.net/10044/1/58047
VL - 78
ER -