Searching for heavy leptoquarks at a muon collider

Qian, S. J.; Li, Congqiao; Li, Qiang; Meng, F.; Xiao, J.; Yang, Tianyi; Lu, M.; Zhou, You

doi:10.1007/jhep12(2021)047

Cited by 23 publications

(11 citation statements)

References 59 publications

(66 reference statements)

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“…The reason for choosing diverse benchmark models is to broadly cover the BSM space. There have already been several prospect studies for some of these models at the FCChh [42][43][44][45][46][47][48], MuC [48][49][50][51][52][53][54][55], CLIC [56] and HL(HE)-LHC [42,43,57,58]. Throughout the paper we comment on the similarities and differences between our study and some of the previous ones.…”

Section: Introductionmentioning

confidence: 58%

“…In Ref. [52] it was shown that studying the rapidity distribution of the final state jets could provide additional handles to increase the signal to background ratio for leptoquarks.…”

Section: Di-jet: µμ→ Jjmentioning

confidence: 99%

“…A full collider simulation of this process and its backgrounds is beyond the purpose of this paper, and we refer to [52] for a more detailed study of both leptoquark pair and single production (by fusion with a Z/γ or via radiation off of a b or µ) at muon colliders.…”

Section: Leptoquark Pair Production: µμ→ Lqlqmentioning

confidence: 99%

See 2 more Smart Citations

New Physics in $b \to s μμ$: FCC-hh or a Muon Collider?

Azatov,

Garosi,

Greljo

et al. 2022

Preprint

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Rare flavour-changing neutral-current transitions b → sµ + µ − probe higher energy scales than what is directly accessible at the LHC. Therefore, the presence of new physics in such transitions, as suggested by the present-day LHCb anomalies, would have a major impact on the motivation and planning of future high-energy colliders. The two most prominent options currently debated are a proton-proton collider at 100 TeV (FCC-hh) and a multi-TeV muon collider (MuC). In this work, we compare the discovery prospects at these colliders on benchmark new physics models indirectly detectable in b → sµ + µ − decays but beyond the reach of the high-p T searches at the HL-LHC. We consider a comprehensive set of scenarios: semileptonic contact interactions, Z from a gauged U (1) B 3 −Lµ and U (1) Lµ−Lτ , the scalar leptoquark S 3 , and the vector leptoquark U 1 . We find that a 3 TeV MuC has a sensitivity reach comparable to the one of the FCC-hh. However, for a heavy enough mediator, the new physics effects at a 3 TeV MuC are only observed indirectly via deviations in the highest energy bin, while the FCC-hh has a greater potential for the discovery of a resonance. Finally, to completely cover the parameter space suggested by the bsµµ anomalies, among the proposed future colliders, only a MuC of 10 TeV (or higher) can meet the challenge.

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Section: Introductionmentioning

confidence: 58%

“…In Ref. [52] it was shown that studying the rapidity distribution of the final state jets could provide additional handles to increase the signal to background ratio for leptoquarks.…”

Section: Di-jet: µμ→ Jjmentioning

confidence: 99%

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New Physics in $b \to s μμ$: FCC-hh or a Muon Collider?

Azatov,

Garosi,

Greljo

et al. 2022

Preprint

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“…It should be noted that detailed muon collider sensitivity projections for the BSM candidates in Figure 3 have not been performed yet. In general, a relatively limited literature exists on direct new physics searches at the MuC [25][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40][41][42]. More studies would be desirable also to offer targets to the design of the detector.…”

Section: Direct Reachmentioning

confidence: 99%

Towards a Muon Collider

Accettura¹,

Adams²,

Agarwal³

et al. 2023

Preprint

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A muon collider would enable the big jump ahead in energy reach that is needed for a fruitful exploration of fundamental interactions. The challenges of producing muon collisions at high luminosity and 10 TeV centre of mass energy are being investigated by the recently-formed International Muon Collider Collaboration. This Review summarises the status and the recent advances on muon colliders design, physics and detector studies. The aim is to provide a global perspective of the field and to outline directions for future work.

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“…Interestingly enough, we found that, based on a set of high-intensity electron beam and liquid hydrogen target-both have been used to search for sub-GeV dark vector bosons [83][84][85][86]-and taking into account the most stringent constraints on the corresponding LQ interactions from other processes, very promising event rates can be expected for both the scattering processes in some specific LQ models [82]. Motivated by such a promising prospect of the LQ searches at the low-energy scattering processes (as well as the tenacious hunting for the LQs at the Large Hadron Collider (LHC) [87][88][89][90][91][92][93][94] and other future facilities [95,96]), we will address another interesting question: can the different LQs be systematically disentangled from each other through the low-energy FCNC scattering processes?…”

Section: Introductionmentioning

confidence: 99%

Searching and identifying leptoquarks through low-energy polarized scattering processes $e^-p\to e^-Λ_c$

Lai,

Li,

Yan

et al. 2022

Preprint

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We investigate the potential for discovering and identifying the different leptoquark (LQ) models in the charm sector through the low-energy polarized scattering processes e − p → e − Λc, e − p → e − Λc, and e − p → e − Λc. Considering only the longitudinally polarized processes, we show that the LQ models can be disentangled from each other by measuring the four spin asymmetries, A e L , A p L , A ep L3 , and A ep L6 , constructed in terms of the polarized cross sections. Although it is challenging to accomplish the same goal with the transversely polarized processes, we find that investing them in the future experiments is especially beneficial, since they can directly probe into the imaginary part of the Wilson coefficients in the general low-energy effective Lagrangian. With our properly designed experimental setups, it is also demonstrated that promising event rates can be expected for all these processes and, even in the worst-case scenario-no LQ signals are observed at all, they can still provide competitive potential for constraining the new physics, compared with those from the conventional charmed-hadron weak decays and the high-pT dilepton invariant mass tails at high-energy colliders.

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Searching for heavy leptoquarks at a muon collider

Cited by 23 publications

References 59 publications

New Physics in $b \to s μμ$: FCC-hh or a Muon Collider?

New Physics in $b \to s μμ$: FCC-hh or a Muon Collider?

Towards a Muon Collider

Searching and identifying leptoquarks through low-energy polarized scattering processes $e^-p\to e^-Λ_c$

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