Single production of vector-like bottom quark at the LHeC

Gong, Xue; Yue, C. X.; Yu, Hai-Mei; Liu, Dong

doi:10.1140/epjc/s10052-020-8424-6

Cited by 12 publications

(4 citation statements)

References 59 publications

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“…In Ref. [31], the authors use the same assumption on the parameters and design a dedicated search strategy for the process via the decay mode with at TeV with an integrated luminosity of 300 fb , and the numerical results show that for , VLQ-B can be probed at the level with a mass of approximately 1620 GeV and an integral luminosity of 300 fb . Using the model that includes a topless vectorlike doublet , the author of [33] investigates the single production of a VLQ-B 1) , with the subsequent decay channel and the fully hadronic final states using a jet substructure at the 13 TeV LHC with an integrated luminosity of 300 fb ; a modest value of the chromomagnetic transition moments (…”

Section: H T > 300 Gevmentioning

confidence: 99%

Search for single production of vectorlike B-quarks at the LHC*

Han

Liu²,

Xu³

et al. 2022

Chinese Phys. C

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New vectorlike quarks have been proposed in many scenarios of new physics beyond the Standard Model that address the hierarchy problem, which can be potentially discovered at the Large Hadron Collider~(LHC). Based on a model-independent framework, we propose to search for the vectorlike $B$-quark~(VLQ-$B$) and concentrate on resonant production via $b$-gluon fusion through chromomagnetic interactions. We then explore the possible signals of the VLQ-$B$ through the $B\to tW$ decay mode at the 14 TeV LHC. After a fast simulation of signal and background events, the $2\sigma$ excluded regions and the $5\sigma$ discovery reach in the parameter plane of $\kappa_{B}-m_B$, are, respectively, obtained at the LHC with 300~(3000) fb$^{-1}$ of integrated luminosity in the dilepton final states.

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Section: H T > 300 Gevmentioning

confidence: 99%

Search for single production of vectorlike B-quarks at the LHC*

Han

Liu²,

Xu³

et al. 2022

Chinese Phys. C

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“…So far, most of the phenomenological analysis on the VLQ-B focuses on its single or pair production at the hadron colliders in a model-independent way [39][40][41][42]. Nevertheless, the LHC may not provide us with sufficient information about some couplings between the SM particles with the VLQs.…”

Section: Introductionmentioning

confidence: 99%

Searching for a vector-like B quark through a tW decay channel at future electron–positron colliders

2022

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Vector-like quarks are predicted by several theoretical scenarios of new physics which could solve the hierarchy problem in particular and might be produced through electroweak interactions. In this work, we investigate the prospects for discovering the SU(2) singlet vector-like bottom quark (VLQ-B) in $$e^{+}e^{-}$$ e + e - collisions at the future proposed 3 TeV Compact Linear Collider (CLIC). The analysis is performed within the framework of a simplified model featuring only two free parameters: the VLQ-B mass $$m_B$$ m B and the coupling constant $$g^{*}$$ g ∗ . We study its single production process $$e^{+}e^{-}\rightarrow B{\bar{b}}$$ e + e - → B b ¯ and perform a detailed analysis in the decay channel $$B\rightarrow tW^{-}$$ B → t W - at the 3 TeV CLIC. The $$2\sigma $$ 2 σ exclusion limit and $$5\sigma $$ 5 σ discovery prospects are obtained for the model parameters, respectively. Our results show that the future CLIC will be an ideal hunting ground for such vector-like quarks which have electroweak interactions.

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“…So far, most of the work about the VLQ-B focuses on phenomenological analysis at the hadron colliders [52][53][54]. Compared with the hadron colliders, a future linear e + e − collider has a particularly clear background environment [55][56][57], i.e., the final stage of Compact Linear Collider (CLIC) operating at an energy of 3 TeV is expected to directly examine the pair production of new heavy top partner of mass up to 1.5 TeV [58].…”

Section: Introductionmentioning

confidence: 99%

Search for single production of vector-like B quark decaying to bZ at future linear colliders

Han

Shen

2021

Eur. Phys. J. C

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New vector-like quarks are predicted in many new physics scenarios beyond the Standard Model (SM). Based on a model-independent framework, we investigate the prospect of discovering the SU(2) singlet vector-like bottom quark (VLQ-B) in $$e^{+}e^{-}$$ e + e - collisions at 3 TeV Compact Linear Collider. We study the single VLQ-B production process $$e^{-}e^{+}\rightarrow B{\bar{b}}\rightarrow Zb{\bar{b}}$$ e - e + → B b ¯ → Z b b ¯ with two types of decay channel: $$Z\rightarrow \ell ^{+}\ell ^{-}$$ Z → ℓ + ℓ - , and $$Z\rightarrow \nu {\bar{\nu }}$$ Z → ν ν ¯ . By carrying out a full simulation for the signals and the relevant SM backgrounds, the $$2\sigma $$ 2 σ exclusion limit and $$5\sigma $$ 5 σ discovery prospects are, respectively, obtained on the B quark mass and the coupling strength $$g^{*}$$ g ∗ with the integrated luminosity of 5 $$\hbox {ab}^{-1}$$ ab - 1 . Our numerical results show that the possible signals of the singlet VLQ-B might be detected at the future high-energy $$e^{+}e^{-}$$ e + e - linear colliders.

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Single production of vector-like bottom quark at the LHeC

Cited by 12 publications

References 59 publications

Search for single production of vectorlike B-quarks at the LHC*

Search for single production of vectorlike B-quarks at the LHC*

Searching for a vector-like B quark through a tW decay channel at future electron–positron colliders

Search for single production of vector-like B quark decaying to bZ at future linear colliders

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