Distinguishing signatures of scalar leptoquarks at hadron and muon colliders

Bandyopadhyay, Priyotosh; Karan, Anirban; Mandal, Rusa

doi:10.48550/arxiv.2108.06506

Cited by 5 publications

(6 citation statements)

References 60 publications

(89 reference statements)

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“…At the same time, the muons are not composite objects like protons, so they can utilize the full center of mass energy in their collisions to produce heavy new states. Because the colliding objects are second-generation fermions themselves, muon colliders have a particular aptitude for testing physics with generationspecific couplings [38][39][40][41][42][43][44][45][46][47][48][49][50]. Finally, high-energy muons have a large probability to radiate collinear gauge bosons in their collisions [3,[51][52][53][54], and can thus act efficiently as "vector boson colliders", with large rates for VBF processes that can be used both to search for JHEP07(2022)036 new physics [55][56][57][58][59][60][61][62][63] and to make precision measurements of the electroweak sector [64][65][66][67][68][69][70][71][72][73].…”

Section: The Mssm At a High-energy Muon Collidermentioning

confidence: 99%

Complementary signals of lepton flavor violation at a high-energy muon collider

Homiller

Reece

2022

J. High Energ. Phys.

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A muon collider would be a powerful probe of flavor violation in new physics. There is a strong complementary case for collider measurements and precision low-energy probes of lepton flavor violation (as well as CP violation). We illustrate this by studying the collider reach in a supersymmetric scenario with flavor-violating slepton mixing. We find that the collider could discover sleptons and measure the slepton and neutralino masses with high precision, enabling event reconstruction that could cleanly separate flavor-violating new physics signals from Standard Model backgrounds. The discovery reach of a high-energy muon collider would cover a comparably large, and overlapping, range of parameter space to future μ → e conversion and electron EDM experiments, and unlike precision experiments could immediately shed light on the nature of new physics responsible for flavor violation. This complementarity strengthens the case that a muon collider could be an ideal energy-frontier laboratory in the search for physics beyond the Standard Model.

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Section: The Mssm At a High-energy Muon Collidermentioning

confidence: 99%

Complementary signals of lepton flavor violation at a high-energy muon collider

Homiller

Reece

2022

J. High Energ. Phys.

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“…Muon collider is proposed for the precision measurements as well as sensitive to processes involving lepton flavours. There is a recent buzz among the physicist where different BSM scenarios are explored [45][46][47][48][49][50][51][52][53][54][55][56][57]. The proposed optimistic reach of muon collider is around 90 ab −1 with centre of mass energy of 30 TeV [45].…”

Section: Simulation At the Muon Collidermentioning

confidence: 99%

“…Recently muon collider [40][41][42][43][44] is receiving lots of attention for studying various BSM scenarios due to the precision measurements, centre of mass frame, no initial state QCD radiation, etc. [45][46][47][48][49][50][51][52][53][54][55][56][57][58]. The long lived particles can also be explored at the muon collider, where we proposed such displaced vertex measurement facility, which can be instrumental in exploring some of these BSM scenarios.…”

Section: Introductionmentioning

confidence: 99%

Displaced Higgs production in Type-III seesaw at the LHC/FCC, MATHUSLA and muon collider

et al. 2022

Self Cite

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In this article, we explore the possibility of displaced Higgs production from the decays of the heavy fermions in the Type-III seesaw extension of the Standard Model at the LHC/FCC and the muon collider. The displaced heavy fermions and the Higgs boson can be traced back by measuring the displaced charged tracks of the charged leptons along with the b-jets. A very small Yukawa coupling can lead to two successive displaced decays which makes the phenomenology even more interesting. The prospects of the transverse and longitudinal displaced decay lengths are extensively studied in the context of the boost at the LHC/FCC. Due to the parton distribution function, the longitudinal boosts leads to larger displacement compared to the transverse one, which can reach MATHUSLA and beyond. The longitudinal measurements are indeed possible by the visible part of the finalstate, which captures the complete information about the longitudinal momenta. The comparative studies are made at the LHC/FCC with the centre of mass energies of 14, 27 and 100 TeV, respectively. A futuristic study of the muon collider where the collision happen in the centre of mass frame is analysed for centre of mass energies of 3.5, 14 and 30 TeV. Contrary to LHC/FCC, here the transverse momentum diverges, however, the maximum reach in both the direction are identical due to the constant total momentum in each collision. The reach of the Yukawa couplings and fermion masses are appraised for both the colliders. FCC at 100 TeV can probe a mass of 4.25 TeV and a lowest Yukawa coupling of $${\mathcal {O}}(5 \times 10^{-11})$$ O ( 5 × 10 - 11 ) .

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“…At the same time, the muons are not composite objects like protons, so they can utilize the full center of mass energy in their collisions to produce heavy new states. Because the colliding objects are second-generation fermions themselves, muon colliders have a particular aptitude for testing physics with generation-specific couplings [37][38][39][40][41][42][43][44][45][46][47][48][49]. Finally, high-energy muons have a large probability to radiate collinear gauge bosons in their collisions [3,[50][51][52][53], and can thus act efficiently as "vector boson colliders", with large rates for VBF processes that can be used both to search for new physics [54][55][56][57][58][59][60][61][62] and to make precision measurements of the electroweak sector [63][64][65][66][67][68][69][70][71][72].…”

Section: The Mssm At a High-energy Muon Collidermentioning

confidence: 99%

Complementary Signals of Lepton Flavor Violation at a High-Energy Muon Collider

Homiller,

Lu,

Reece

2022

Preprint

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A muon collider would be a powerful probe of flavor violation in new physics. There is a strong complementary case for collider measurements and precision low-energy probes of lepton flavor violation (as well as CP violation). We illustrate this by studying the collider reach in a supersymmetric scenario with flavor-violating slepton mixing. We find that the collider could discover sleptons and measure the slepton and neutralino masses with high precision, enabling event reconstruction that could cleanly separate flavor-violating new physics signals from Standard Model backgrounds. The discovery reach of a high-energy muon collider would cover a comparably large, and overlapping, range of parameter space to future µ → e conversion and electron EDM experiments, and unlike precision experiments could immediately shed light on the nature of new physics responsible for flavor violation. This complementarity strengthens the case that a muon collider could be an ideal energy-frontier laboratory in the search for physics beyond the Standard Model.

show abstract

Distinguishing signatures of scalar leptoquarks at hadron and muon colliders

Cited by 5 publications

References 60 publications

Complementary signals of lepton flavor violation at a high-energy muon collider

Complementary signals of lepton flavor violation at a high-energy muon collider

Displaced Higgs production in Type-III seesaw at the LHC/FCC, MATHUSLA and muon collider

Complementary Signals of Lepton Flavor Violation at a High-Energy Muon Collider

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