Search for single production of vector-like quarks decaying to a b quark and a Higgs boson; Journal of High Energy Physics; Vol. 2018, iss. 6

Bibliografiske detaljer
Parent link:Journal of High Energy Physics
Vol. 2018, iss. 6.— 2018.— [31, 41 p.]
Institution som forfatter: Национальный исследовательский Томский политехнический университет Исследовательская школа физики высокоэнергетических процессов
Andre forfattere: Sirunyan A. M., Tumasyan A. R., Adam W. Wolfgang, Ambrogi F. Federico, Asilar E. Ece, Bergauer T. Thomas, Babaev A. A. Anton Anatoljevich
Summary:Title screen
A search is presented for single production of heavy vector-like quarks (B) that decay to a Higgs boson and a b quark, with the Higgs boson decaying to a highly boosted bb¯¯¯bb¯ pair reconstructed as a single collimated jet. The analysis is based on data collected by the CMS experiment in proton-proton collisions at s√=13s=13 TeV, corresponding to an integrated luminosity of 35.9 fb−1. The data are consistent with background expectations, and upper limits at 95% confidence level on the product of the B quark cross section and the branching fraction are obtained in the range 1.28-0.07 pb, for a narrow B quark with a mass between 700 and 1800 GeV. The production of B quarks with widths of 10, 20 and 30% of the resonance mass is also considered, and the sensitivities obtained are similar to those achieved in the narrow width case. This is the first search at the CERN LHC for the single production of a B quark through its fully hadronic decay channel, and the first study considering finite resonance widths of the B quark.
Режим доступа: по договору с организацией-держателем ресурса
Sprog:engelsk
Udgivet: 2018
Fag:
Online adgang:https://doi.org/10.1007/JHEP06(2018)031
Format: MixedMaterials Electronisk Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=661138

MARC

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330 |a A search is presented for single production of heavy vector-like quarks (B) that decay to a Higgs boson and a b quark, with the Higgs boson decaying to a highly boosted bb¯¯¯bb¯ pair reconstructed as a single collimated jet. The analysis is based on data collected by the CMS experiment in proton-proton collisions at s√=13s=13 TeV, corresponding to an integrated luminosity of 35.9 fb−1. The data are consistent with background expectations, and upper limits at 95% confidence level on the product of the B quark cross section and the branching fraction are obtained in the range 1.28-0.07 pb, for a narrow B quark with a mass between 700 and 1800 GeV. The production of B quarks with widths of 10, 20 and 30% of the resonance mass is also considered, and the sensitivities obtained are similar to those achieved in the narrow width case. This is the first search at the CERN LHC for the single production of a B quark through its fully hadronic decay channel, and the first study considering finite resonance widths of the B quark. 
333 |a Режим доступа: по договору с организацией-держателем ресурса 
461 |t Journal of High Energy Physics 
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610 1 |a адрон-адронные столкновения 
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701 1 |a Bergauer  |b T.  |g Thomas 
701 1 |a Babaev  |b A. A.  |c physicist  |c engineer-issledovatelskogo Polytechnic University, candidate of physical and mathematical Sciences  |f 1981-  |g Anton Anatoljevich  |3 (RuTPU)RU\TPU\pers\35154  |9 18420 
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