Search for single production of vector-like quarks decaying to a Z boson and a top or a bottom quark in proton-proton collisions at √s = 13 TeV

Name: Search for single production of vector-like quarks decaying to a Z boson and a top or a bottom quark in proton-proton collisions at √s = 13 TeV
Author: Sirunyan, A. M., Işıldak, Bora

İsim	Search for single production of vector-like quarks decaying to a Z boson and a top or a bottom quark in proton-proton collisions at √s = 13 TeV
Yazar	Sirunyan, A. M., Işıldak, Bora
Basım Tarihi:	2017-05-05
Basım Yeri	- Springer International Publishing
Konu	Beyond Standard Model, Hadron-Hadron scattering (experiments), Vectorlike quarks
Tür	Süreli Yayın
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	1029-8479
Kayıt Numarası	df04e84d-5e52-4562-96e3-1634dd41a753
Lokasyon	Natural and Mathematical Sciences
Tarih	2017-05-05
Notlar	Due to copyright restrictions, the access to the full text of this article is only available via subscription.
Örnek Metin	A search for single production of vector-like quarks, T and B, decaying into a Z boson and a top or a bottom quark, respectively, is presented. The search is performed using data collected by the CMS experiment at the LHC in proton-proton collisions at s√=13s=13 TeV, corresponding to an integrated luminosity of 2.3fb−1. An exotic T quark production mode through the decay of a heavy Z′ resonance is also considered. The search is performed in events with a Z boson decaying leptonically, accompanied by a bottom or a top quark decaying hadronically. No excess of events is observed over the standard model background expectation. Products of production cross section and branching fraction for T and B quarks from 1.26 and 0.13 pb are excluded at 95% confidence level for the range of resonance mass considered, which is between 0.7 and 1.7 TeV. Limits on the product of the Z′ boson production cross section and branching fraction, with the Z′ boson decaying to the Tt final state, are set between 0.31 and 0.13 pb, for Z′ boson masses in the range from 1.5 to 2.5 TeV. This is the first search at 13 TeV for single production of vector-like quarks in events with a Z boson decaying leptonically accompanied by boosted jets.
DOI	10.1007/JHEP05(2017)029
Cilt	2017

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Search for single production of vector-like quarks decaying to a Z boson and a top or a bottom quark in proton-proton collisions at √s = 13 TeV

Yazar Sirunyan, A. M., Işıldak, Bora

Basım Tarihi 2017-05-05

Basım Yeri - Springer International Publishing

Konu Beyond Standard Model, Hadron-Hadron scattering (experiments), Vectorlike quarks

Tür Süreli Yayın

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 1029-8479

Kayıt Numarası df04e84d-5e52-4562-96e3-1634dd41a753

Lokasyon Natural and Mathematical Sciences

Tarih 2017-05-05

Notlar Due to copyright restrictions, the access to the full text of this article is only available via subscription.

Örnek Metin A search for single production of vector-like quarks, T and B, decaying into a Z boson and a top or a bottom quark, respectively, is presented. The search is performed using data collected by the CMS experiment at the LHC in proton-proton collisions at s√=13s=13 TeV, corresponding to an integrated luminosity of 2.3fb−1. An exotic T quark production mode through the decay of a heavy Z′ resonance is also considered. The search is performed in events with a Z boson decaying leptonically, accompanied by a bottom or a top quark decaying hadronically. No excess of events is observed over the standard model background expectation. Products of production cross section and branching fraction for T and B quarks from 1.26 and 0.13 pb are excluded at 95% confidence level for the range of resonance mass considered, which is between 0.7 and 1.7 TeV. Limits on the product of the Z′ boson production cross section and branching fraction, with the Z′ boson decaying to the Tt final state, are set between 0.31 and 0.13 pb, for Z′ boson masses in the range from 1.5 to 2.5 TeV. This is the first search at 13 TeV for single production of vector-like quarks in events with a Z boson decaying leptonically accompanied by boosted jets.

DOI 10.1007/JHEP05(2017)029

Cilt 2017