Single production of the top partner in the T → tZ channel at the LHeC

Zhang, Yanju; Han, L.; Liu, Yao-Bei

doi:10.1016/j.physletb.2017.02.051

Cited by 24 publications

(9 citation statements)

References 73 publications

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“…However, as bounds on the top partner mass, m T , become multi-TeV, the LHC energy will be saturated and the utility of this channel greatly diminished. In such cases, single production of a top partner in association with another quark or W boson may be promising [16][17][18][19][20][21][22][23][24][25][26][27][28], since there is more available phase space.…”

Section: Introductionmentioning

confidence: 99%

Loop induced single top partner production and decay at the LHC

Kim

Lewis

2018

J. High Energ. Phys.

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Most searches for top partners, T , are concerned with top partner pair production. However, as these bounds become increasingly stringent, the LHC energy will saturate and single top partner production will become more important. In this paper we study the novel signature of the top partner produced in association with the SM top, pp → T t + tT , in a model where the Standard Model (SM) is extended by a vector-like SU (2) L singlet fermion top partner and a real, SM gauge singlet scalar, S. In this model, pp → T t + tT production is possible through loops mediated by the scalar singlet. We find that, with reasonable coupling strengths, the production rate of this channel can dominate top partner pair production at top partner masses of m T 1.5 TeV. In addition, this model allows for the exotic decay modes T → tg, T → tγ, and T → tS. In much of the parameter space the loop induced decay T → tg dominates and the top partner is quite long lived. New search strategies are necessary to cover these decay modes. We project the the sensitivity of the high luminosity LHC to pp → T t + tT via a realistic collider study. We find with 3 ab −1 , the LHC is sensitive to this process for masses m T 2 TeV. In addition, we provide appendices detailing the renormalization of this model.

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Section: Introductionmentioning

confidence: 99%

Loop induced single top partner production and decay at the LHC

Kim

Lewis

2018

J. High Energ. Phys.

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“…energy and 1000 times in the integrated luminosity. References [49][50][51] have studied the discovery potential of the VLQ-T through various channels at the LHeC, where the VLQ-T is the SU (2) singlet with charge 2/3. To the best of our knowledge, so far, no work has been done to search single production of the SU (2) singlet VLQ-B at the LHeC.…”

Section: Introductionmentioning

confidence: 99%

Single production of vector-like bottom quark at the LHeC

Gong

Yue

et al. 2020

Eur. Phys. J. C

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Existences of vector-like quarks (VLQs) are predicted in many new physics scenarios beyond the Standard Model (SM). We study the possibility of detecting the vector-like bottom quark (VLQ-B) being the SU(2) singlet with electric charge $$-1/3$$ - 1 / 3 at Large Hadron electron Collider (LHeC) in a model-independent framework. The decay properties and single production of VLQ-B at the LHeC are explored. Three types of signatures are investigated. By carrying out a fast simulation for the signals and the corresponding backgrounds, the signal significances are obtained. Our numerical results show that detecting of VLQ-B via the semileptonic channel is better than via the fully hadronic or leptonic channel.

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“…Refs. [26][27][28] have studied the discovery potential of the vector-like top quarks through various channels at the LHeC, where the vector-like top partner is the SU (2) singlet with charge 2/3. To the best of our knowledge, so far, no work has been done to search single production of the SU (2) singlet VLQ-B at the LHeC.…”

Section: Introductionmentioning

confidence: 99%

Single production of vector-like bottom quark at the LHeC

Gong,

Yue,

et al. 2020

Preprint

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Existences of vector-like quarks (VLQs) are predicted in many new physics scenarios beyond the Standard Model (SM). We study the possibility of detecting the vector-like bottom quark (VLQ-B) being the SU (2) singlet with electric charge −1/3 at the Large Hadron Electron Collider (LHeC) in a model independent framework. The decay properties and single production of VLQ-B at the LHeC are explored. Three types of signatures are investigated. By carrying out a fast simulation for the signals and the corresponding backgrounds, the signal significances are obtained. Our numerical results show that detecting of VLQ-B via the semileptonic channel is better than via the fully hadronic or leptonic channel.

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Single production of the top partner in the T → tZ channel at the LHeC

Cited by 24 publications

References 73 publications

Loop induced single top partner production and decay at the LHC

Loop induced single top partner production and decay at the LHC

Single production of vector-like bottom quark at the LHeC

Single production of vector-like bottom quark at the LHeC

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