Search for single production of vector-like B quark via bZ channel at the HL-LHC

In this work, we propose to search for the doublet vectorlike B quark (VLQ-B) based on a model-independent framework, where the VLQ-B only couples with the third generation of Standard Model quarks. We investigate the observability for single electroweak production process pp→Bb¯j with the subsequen...

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Main Authors: Jin-Zhong Han, Jing Yang, Shuai Xu, Han-Kui Wang
Format: Article
Language:English
Published: Elsevier 2022-02-01
Series:Nuclear Physics B
Online Access:http://www.sciencedirect.com/science/article/pii/S0550321322000232
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author Jin-Zhong Han
Jing Yang
Shuai Xu
Han-Kui Wang
author_facet Jin-Zhong Han
Jing Yang
Shuai Xu
Han-Kui Wang
author_sort Jin-Zhong Han
collection DOAJ
description In this work, we propose to search for the doublet vectorlike B quark (VLQ-B) based on a model-independent framework, where the VLQ-B only couples with the third generation of Standard Model quarks. We investigate the observability for single electroweak production process pp→Bb¯j with the subsequent decay mode of B→bZ and Z→ℓ+ℓ−(ℓ=e,μ) at the future high-luminosity Large Hadron Collider (HL-LHC). After a fast simulation of signal and background events, the 95% confidence level excluded regions and the 5σ discovery reach in the parameter plane of κB−mB, are respectively obtained in the narrow width case. The projected sensitivity in terms of the production cross section times branching fraction is also predicted with 10% systematic uncertainty.
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spelling doaj.art-c3bf54d0f42448fe82914782961c8a5f2022-12-22T04:14:25ZengElsevierNuclear Physics B0550-32132022-02-01975115672Search for single production of vector-like B quark via bZ channel at the HL-LHCJin-Zhong Han0Jing Yang1Shuai Xu2Han-Kui Wang3Corresponding author.; School of Physics and Telecommunications Engineering, Zhoukou Normal University, Zhoukou 466001, ChinaSchool of Physics and Telecommunications Engineering, Zhoukou Normal University, Zhoukou 466001, ChinaSchool of Physics and Telecommunications Engineering, Zhoukou Normal University, Zhoukou 466001, ChinaSchool of Physics and Telecommunications Engineering, Zhoukou Normal University, Zhoukou 466001, ChinaIn this work, we propose to search for the doublet vectorlike B quark (VLQ-B) based on a model-independent framework, where the VLQ-B only couples with the third generation of Standard Model quarks. We investigate the observability for single electroweak production process pp→Bb¯j with the subsequent decay mode of B→bZ and Z→ℓ+ℓ−(ℓ=e,μ) at the future high-luminosity Large Hadron Collider (HL-LHC). After a fast simulation of signal and background events, the 95% confidence level excluded regions and the 5σ discovery reach in the parameter plane of κB−mB, are respectively obtained in the narrow width case. The projected sensitivity in terms of the production cross section times branching fraction is also predicted with 10% systematic uncertainty.http://www.sciencedirect.com/science/article/pii/S0550321322000232
spellingShingle Jin-Zhong Han
Jing Yang
Shuai Xu
Han-Kui Wang
Search for single production of vector-like B quark via bZ channel at the HL-LHC
Nuclear Physics B
title Search for single production of vector-like B quark via bZ channel at the HL-LHC
title_full Search for single production of vector-like B quark via bZ channel at the HL-LHC
title_fullStr Search for single production of vector-like B quark via bZ channel at the HL-LHC
title_full_unstemmed Search for single production of vector-like B quark via bZ channel at the HL-LHC
title_short Search for single production of vector-like B quark via bZ channel at the HL-LHC
title_sort search for single production of vector like b quark via bz channel at the hl lhc
url http://www.sciencedirect.com/science/article/pii/S0550321322000232
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