Search for Dark Matter Particles Produced in Association with a Top Quark Pair at √s=13 TeV

Search for Dark Matter Particles Produced in Association with a Top Quark Pair at √s=13 TeV

Bibliographic Details
Parent link:	Physical Review Letters: Scientific Journal.— , 1958- Vol. 122, iss. 1.— 2019.— [011803, 29 p.]
Corporate Authors:	Национальный исследовательский Томский политехнический университет Исследовательская школа физики высокоэнергетических процессов, Национальный исследовательский Томский политехнический университет Инженерная школа новых производственных технологий Научно-производственная лаборатория "Импульсно-пучковых, электроразрядных и плазменных технологий"
Other Authors:	Sirunyan A. M., Tumasyan A. R., Adam W. Wolfgang, Ambrogi F. Federico, Babaev A. A. Anton Anatoljevich, Okhotnikov V. V. Vitaly Vladimirovich
Summary:	Title screen A search is performed for dark matter particles produced in association with a top quark pair in proton-proton collisions at √s=13 TeV. The data correspond to an integrated luminosity of 35.9 fb−1recorded by the CMS detector at the LHC. No significant excess over the standard model expectation is observed. The results are interpreted using simplified models of dark matter production via spin-0 mediators that couple to dark matter particles and to standard model quarks, providing constraints on the coupling strength between the mediator and the quarks. These are the most stringent collider limits to date for scalar mediators, and the most stringent for pseudoscalar mediators at low masses. Режим доступа: по договору с организацией-держателем ресурса
Published:	2019
Subjects:	электронный ресурс труды учёных ТПУ протон-протонные соударения кварки
Online Access:	https://doi.org/10.1103/PhysRevLett.122.011803
Format:	Electronic Book Chapter
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=659123

Internet

https://doi.org/10.1103/PhysRevLett.122.011803