000 03032nlm1a2200409 4500
001 662088
005 20231030041809.0
035 _a(RuTPU)RU\TPU\network\33222
090 _a662088
100 _a20200518a2019 k y0engy50 ba
101 0 _aeng
135 _adrcn ---uucaa
181 0 _ai
182 0 _ab
200 1 _aSearch for vector-like quarks in events with two oppositely charged leptons and jets in proton–proton collisions at √s=13TeV
_fA. M. Sirunyan, A. R. Tumasyan, W. Adam [et al.]
203 _aText
_celectronic
300 _aTitle screen
320 _a[References: 75 tit.]
330 _aA search for the pair production of heavy vector-like partners TT and BB of the top and bottom quarks has been performed by the CMS experiment at the CERN LHC using proton-proton collisions at s√=13TeVs=13TeV. The data sample was collected in 2016 and corresponds to an integrated luminosity of 35.9fb−1fb−1. Final states studied for TT¯TT¯ production include those where one of the TT quarks decays via T→tZT→tZ and the other via T→bWT→bW, tZtZ, or tHtH, where HH is a Higgs boson. For the BB¯BB¯ case, final states include those where one of the BB quarks decays via B→bZB→bZ and the other B→tWB→tW, bZbZ, or bHbH. Events with two oppositely charged electrons or muons, consistent with coming from the decay of a ZZ boson, and jets are investigated. The number of observed events is consistent with standard model background estimations. Lower limits at 95% confidence level are placed on the masses of the TT and BB quarks for a range of branching fractions. Assuming 100% branching fractions for T→tZT→tZ, and B→bZB→bZ, TT and BB quark mass values below 1280 and 1130GeVGeV, respectively, are excluded.
333 _aРежим доступа: по договору с организацией-держателем ресурса
461 _tEuropean Physical Journal C
463 _tVol. 79, iss. 4
_v[364, 31 p.]
_d2019
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _ahadron-hadron scattering (experiments)
610 1 _aадрон-адронные столкновения
610 1 _abeyond standard model
610 1 _aHiggs physics
701 1 _aSirunyan
_bA. M.
701 1 _aTumasyan
_bA. R.
701 1 _aAdam
_bW.
_gWolfgang
701 1 _aAmbrogi
_bF.
_gFederico
701 1 _aBabaev
_bA. A.
_cphysicist
_cengineer-issledovatelskogo Polytechnic University, candidate of physical and mathematical Sciences
_f1981-
_gAnton Anatoljevich
_2stltpush
_3(RuTPU)RU\TPU\pers\35154
712 0 2 _aНациональный исследовательский Томский политехнический университет
_bИсследовательская школа физики высокоэнергетических процессов
_c(2017- )
_h8118
_2stltpush
_3(RuTPU)RU\TPU\col\23551
801 2 _aRU
_b63413507
_c20201012
_gRCR
856 4 _uhttps://doi.org/10.1140/epjc/s10052-019-6855-8
942 _cCF