Search for single production of vector-like top partners at the Large Hadron Electron Collider

Liu, Yao-Bei

doi:10.1016/j.nuclphysb.2017.08.006

Cited by 22 publications

(5 citation statements)

References 84 publications

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“…The prospects for detecting T at the LHeC are discussed in reference [692]. For this search, a Another search strategy for singly produced top partners is given by their decays T → Wb and T → th, which are presented in reference [693]. The analysis is based on a simplified model in which the top partner is an SU L (2) singlet and only interacts with the third generation of quarks.…”

Section: Z -Mediated Charged-lepton-flavour Violationmentioning

confidence: 99%

The Large Hadron–Electron Collider at the HL-LHC

Agostini

Aksakal

Alekhin

et al. 2021

J. Phys. G: Nucl. Part. Phys.

152

129

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The Large Hadron–Electron Collider (LHeC) is designed to move the field of deep inelastic scattering (DIS) to the energy and intensity frontier of particle physics. Exploiting energy-recovery technology, it collides a novel, intense electron beam with a proton or ion beam from the High-Luminosity Large Hadron Collider (HL-LHC). The accelerator and interaction region are designed for concurrent electron–proton and proton–proton operations. This report represents an update to the LHeC’s conceptual design report (CDR), published in 2012. It comprises new results on the parton structure of the proton and heavier nuclei, QCD dynamics, and electroweak and top-quark physics. It is shown how the LHeC will open a new chapter of nuclear particle physics by extending the accessible kinematic range of lepton–nucleus scattering by several orders of magnitude. Due to its enhanced luminosity and large energy and the cleanliness of the final hadronic states, the LHeC has a strong Higgs physics programme and its own discovery potential for new physics. Building on the 2012 CDR, this report contains a detailed updated design for the energy-recovery electron linac (ERL), including a new lattice, magnet and superconducting radio-frequency technology, and further components. Challenges of energy recovery are described, and the lower-energy, high-current, three-turn ERL facility, PERLE at Orsay, is presented, which uses the LHeC characteristics serving as a development facility for the design and operation of the LHeC. An updated detector design is presented corresponding to the acceptance, resolution, and calibration goals that arise from the Higgs and parton-density-function physics programmes. This paper also presents novel results for the Future Circular Collider in electron–hadron (FCC-eh) mode, which utilises the same ERL technology to further extend the reach of DIS to even higher centre-of-mass energies.

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Section: Z -Mediated Charged-lepton-flavour Violationmentioning

confidence: 99%

The Large Hadron–Electron Collider at the HL-LHC

Agostini

Aksakal

Alekhin

et al. 2021

J. Phys. G: Nucl. Part. Phys.

152

129

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“…New ideas or contributions are also welcomed. For example, top-related BSM physics at the ep colliders [11], which may further emphasize the strength of the LHeC (FCC-eh) when it comes to the top sector.…”

Section: Discussionmentioning

confidence: 99%

Overview of top quark physics at the LHeC

Sun¹

2017

Proceedings of XXV International Workshop on Deep-Inelastic Scattering and Related Subjects — PoS(DIS2017)

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In this talk we present a short overview of top physics at the electron-proton (ep) colliders. Currently, the proposed ep collider is the Large Hadron Electron Collider (LHeC), which is a combination of 60 GeV electron beam and 7 TeV proton beam of the LHC tunnel. This may be extended to Future Circular electron-hadron Collider (FCC-eh), which features a 60 GeV (or higher) electron beam with the 50 TeV proton beam from the Future Circular hadron Collider (FCC-hh). Selected topics include but not limited to top structure function, top parton distribution functions, top spin polarization, top electric charge, measurement of V tb , anomalous ttγ, ttZ, tbW, tqγ, tqH couplings and CP phase of ttH coupling.

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“…Depending on the model, VLQs can be realized in different multiplets, such as electroweak singlet [T , B], electroweak doublets [(X, T ) , (T, B) or (B, Y )], or a e-mail: hanlin@xxmu.edu.cn b e-mail: shjf@xxmu.edu.cn (corresponding author) electroweak triplets [(X, T, B) or (T, B, Y )] [11]. A common feature of these new fermions is that they can decay into a SM quark and a SM gauge boson, or a Higgs boson, which could generate characteristic signatures at the current and future high-energy colliders (for example, see [12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28]).…”

Section: Introductionmentioning

confidence: 99%

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

2022

Self Cite

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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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Search for single production of vector-like top partners at the Large Hadron Electron Collider

Cited by 22 publications

References 84 publications

The Large Hadron–Electron Collider at the HL-LHC

The Large Hadron–Electron Collider at the HL-LHC

Overview of top quark physics at the LHeC

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

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