Measurement of the WW plus WZ cross section and limits on anomalous triple gauge couplings using final states with one lepton, missing transverse momentum, and two jets with the ATLAS detector at root s=7 TeV

Aad, G.; Agatonović-Jovin, Tatjana; Bozic, I.; Dimitrievska, A.; Krstić, Jelena; Mamužić, Judita; Marjanovic, M.; Popovic, D. S.; Sijacki, Dj.; Simic, Lj.; Vranjes, N.; Vranješ Milosavljević, Marija

doi:10.1007/JHEP01(2015)049

2015

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Autori

Aad, G.

Agatonović-Jovin, Tatjana

Bozic, I.
Dimitrievska, A.
Krstić, Jelena
Mamužić, Judita

Marjanovic, M.
Popovic, D. S.
Sijacki, Dj.
Simic, Lj.
Vranjes, N.

Vranješ Milosavljević, Marija

(ukupan broj autora: 2882)

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Apstrakt

The production of a W boson decaying to ev or mu v in association with a W or Z boson decaying to two jets is studied using 4.6 fb(-1) of proton-proton collision data at root s = 7 TeV recorded with the ATLAS detector at the LHC. The combined WW + WZ cross section is measured with a significance of 3.4 sigma and is found to be 68 +/- 7 (stat.) +/- 19 (syst.) pb, in agreement with the Standard Model expectation of 61.1 +/- 2.2 pb. The distribution of the transverse momentum of the dijet system is used to set limits on anomalous contributions to the triple gauge coupling vertices and on parameters of an effective-field-theory model.

Ključne reči:

Hadron-Hadron Scattering

Izvor:
Journal of High Energy Physics, 2015, 1

Projekti:

ANPCyT, Argentina, YerPhI, Armenia, ARC, Australia, BMWFW, Austria, FWF, Austria, ANAS, Azerbaijan, SSTC, Belarus, CNPq, Brazil, FAPESP, Brazil, NSERC, Canada, NRC, Canada, CFI, Canada, CERN, CONICYT, Chile, CAS, China, MOST, China, NSFC, China, COLCIENCIAS, Colombia, MSMT CR, Czech Republic, MPO CR, Czech Republic, VSC CR, Czech Republic, DNRF, Denmark, DNSRC, Denmark, Lundbeck Foundation, Denmark, EPLANET, European Union, ERC, European Union, NSRF, European Union, IN2P3-CNRS, France, CEA-DSM/IRFU, France, GNSF, Georgia, BMBF, Germany, DFG, Germany, HGF, Germany, MPG, Germany, AvH Foundation, Germany, GSRT, Greece, NSRF, Greece, ISF, Israel, MINERVA, Israel, GIF, Israel, I-CORE, Israel, Benoziyo Center, Israel, INFN, Italy, MEXT, Japan, JSPS, Japan, CNRST, Morocco, FOM, Netherlands, NWO, Netherlands, BRF, Norway, RCN, Norway, MNiSW, Poland, NCN, Poland, GRICES, Portugal, FCT, Portugal, MNE/IFA, Romania, MES of Russia, Russian Federation, ROSATOM, Russian Federation, JINR, MSTD, Serbia, MSSR, Slovakia, ARRS, Slovenia, MIZS, Slovenia, DST/NRF, South Africa, MINECO, Spain, SRC, Sweden, Wallenberg Foundation, Sweden, SER, Switzerland, SNSF, Switzerland, Cantons of Bern and Geneva, Switzerland, NSC, Taiwan, TAEK, Turkey, STFC, United Kingdom, Royal Society and Leverhulme Trust, United Kingdom, DOE, United States of America, NSF, United States of America, ICREA