Measurement of the top quark Yukawa coupling from t¯t kinematic distributions in the dilepton final state in proton-proton collisions at √s=13  TeV

Measurement of the top quark Yukawa coupling from t¯t kinematic distributions in the dilepton final state in proton-proton collisions at √s=13  TeV

Bibliografske podrobnosti
Parent link:Physical Review D: particles, fields, gravitation, and cosmology.— , 1970-
Vol. 102, iss. 9.— 2020.— [092013, 29 p.]
Korporativna značnica: Национальный исследовательский Томский политехнический университет Исследовательская школа физики высокоэнергетических процессов
Drugi avtorji: Sirunyan A. M., Tumasyan A. R., Adam W. Wolfgang, Ambrogi F. Federico, Tyurin N. E. Nikolay Evgenjevich, Babaev A. A. Anton Anatoljevich, Okhotnikov V. V. Vitaly Vladimirovich, Sukhikh L. G. Leonid Grigorievich
Izvleček:Title screen
A measurement of the Higgs boson Yukawa coupling to the top quark is presented using proton-proton collision data at √s=13  TeV, corresponding to an integrated luminosity of 137  fb−1, recorded with the CMS detector. The coupling strength with respect to the standard model value, Yt, is determined from kinematic distributions in t¯t final states containing ee, μμ, or eμ pairs. Variations of the Yukawa coupling strength lead to modified distributions for t¯t production. In particular, the distributions of the mass of the t¯t system and the rapidity difference of the top quark and antiquark are sensitive to the value of Yt. The measurement yields a best fit value of Yt=1.16+0.24−0.35, bounding Yt<1.54 at a 95% confidence level.
Режим доступа: по договору с организацией-держателем ресурса
Izdano: 2020
Teme:
электронный ресурс
труды учёных ТПУ
Online dostop:https://doi.org/10.1103/PhysRevD.102.092013
Format: Elektronski Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=664673

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