Search for vector-like quarks in events with two oppositely charged leptons and jets in proton–proton collisions at √s=13TeV; European Physical Journal C; Vol. 79, iss. 4
| Parent link: | European Physical Journal C Vol. 79, iss. 4.— 2019.— [364, 31 p.] |
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| Institution som forfatter: | |
| Andre forfattere: | , , , , |
| Summary: | Title screen A 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. Режим доступа: по договору с организацией-держателем ресурса |
| Sprog: | engelsk |
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2019
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| Fag: | |
| Online adgang: | https://doi.org/10.1140/epjc/s10052-019-6855-8 |
| Format: | MixedMaterials Electronisk Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=662088 |
MARC
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| 200 | 1 | |a Search for vector-like quarks in events with two oppositely charged leptons and jets in proton–proton collisions at √s=13TeV |f A. M. Sirunyan, A. R. Tumasyan, W. Adam [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 75 tit.] | ||
| 330 | |a A 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 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | |t European Physical Journal C | ||
| 463 | |t Vol. 79, iss. 4 |v [364, 31 p.] |d 2019 | ||
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| 610 | 1 | |a beyond standard model | |
| 610 | 1 | |a Higgs physics | |
| 701 | 1 | |a Sirunyan |b A. M. | |
| 701 | 1 | |a Tumasyan |b A. R. | |
| 701 | 1 | |a Adam |b W. |g Wolfgang | |
| 701 | 1 | |a Ambrogi |b F. |g Federico | |
| 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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