000 02823nlm1a2200409 4500
001 662412
005 20231030041820.0
035 _a(RuTPU)RU\TPU\network\33567
090 _a662412
100 _a20200806a2019 k y0engy50 ba
101 0 _aeng
135 _adrcn ---uucaa
181 0 _ai
182 0 _ab
200 1 _aSearch for new physics in top quark production in dilepton final states 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: 70 tit.]
330 _aA search for new physics in top quark production is performed in proton-proton collisions at 13TeV13TeV. The data set corresponds to an integrated luminosity of 35.9fb−135.9fb−1 collected in 2016 with the CMS detector. Events with two opposite-sign isolated leptons (electrons or muons), and bb quark jets in the final state are selected. The search is sensitive to new physics in top quark pair production and in single top quark production in association with a WW boson. No significant deviation from the standard model expectation is observed. Results are interpreted in the framework of effective field theory and constraints on the relevant effective couplings are set, one at a time, using a dedicated multivariate analysis. This analysis differs from previous searches for new physics in the top quark sector by explicitly separating tWtW from tt¯tt¯ events and exploiting the specific sensitivity of the tWtW process to new physics.
461 _tEuropean Physical Journal C
463 _tVol. 79, iss. 11
_v[886, 29 p.]
_d2019
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _aпротон-протонные соударения
610 1 _aкварки
701 1 _aSirunyan
_bA. M.
701 1 _aTumasyan
_bA. R.
701 1 _aAdam
_bW.
_gWolfgang
701 1 _aAmbrogi
_bF.
_gFederico
701 1 _aAsilar
_bE.
_gEce
701 1 _aBergauer
_bT.
_gThomas
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
701 1 _aOkhotnikov
_bV. V.
_cphysicist
_cengineer of Tomsk Polytechnic University
_f1992-
_gVitaly Vladimirovich
_2stltpush
_3(RuTPU)RU\TPU\pers\36453
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/s10052-019-7387-y
942 _cCF