Electroweak ALP searches at a muon collider

Bao, Yunjia; Fan, JiJi; Li, Lingfeng

doi:10.1007/jhep08(2022)276

Cited by 19 publications

(2 citation statements)

References 90 publications

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“…Due to the fact that lepton PDFs peak at momentum fraction x = 1, the inclusion of ISR effects is not expected to change the cross-sections dramatically. In a similar fashion to [56], we estimate the magnitude of ISR by allowing for a single collinearly emitted photon in the final state with kinematic parameters such that the photon falls outside the acceptance of the detector. To this end, we enforce that the pseudorapidity η of the photon be in the domain 2.5 < |η| < 1000 and require that its transverse momentum p T satisfy 0.001 GeV < p T < 0.1 GeV.…”

Section: Flavonstrahlung At Muon Collidersmentioning

confidence: 99%

Flavonstrahlung in the B3 − L2 Z′ model at current and future colliders

Allanach

Loisa

2023

J. High Energ. Phys.

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The B3− L2Z′ model may explain some gross features of the fermion mass spectrum as well as b → sℓℓ anomalies. A TeV-scale physical scalar field associated with gauged $$ U{(1)}_{B_3-{L}_2} $$ U 1 B 3 − L 2 spontaneous symmetry breaking, the flavon field ϑ, affects Higgs phenomenology via mixing. In this paper, we investigate the collider phenomenology of the flavon field. Higgs and W boson mass data are used to place bounds upon parameter space. We then examine flavonstrahlung (Z′ → Z′ϑ production) at colliders as a means to directly produce and discover flavon particles, which would provide direct empirical evidence tying the flavon to $$ U{(1)}_{B_3-{L}_2} $$ U 1 B 3 − L 2 symmetry breaking. A 100 TeV FCC-hh or a 10 TeV muon collider would have high sensitivity to flavonstrahlung, whereas the HL-LHC can observe it only in extreme corners of parameter space.

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Section: Flavonstrahlung At Muon Collidersmentioning

confidence: 99%

Flavonstrahlung in the B3 − L2 Z′ model at current and future colliders

Allanach

Loisa

2023

J. High Energ. Phys.

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“…Finally, low-mass scalars are a key target for current and future colliders, including axion-like particles [47,48,49,50] and light scalars from extended Higgs sectors [51]. Collider searches complement searches at astronomical, dark matter, and nuclear physics experiments [47].…”

Section: Search Strategiesmentioning

confidence: 99%

Theory of Collider Phenomena (TF07 Snowmass Report)

Maltoni¹

2022

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Theoretical research has long played an essential role in interpreting data from high-energy particle colliders and motivating new accelerators to advance the energy and precision frontiers. Collider phenomenology is an essential interface between theoretical models and experimental observations, since theoretical studies inspire experimental analyses while experimental results sharpen theoretical ideas. This report-from the Snowmass 2021 Theory Frontier topical group for Collider Phenomenology (TF07)-showcases the dynamism, engagement, and motivations of collider phenomenologists by exposing selected exciting new directions and establishing key connections between cutting-edge theoretical advances and current and future experimental opportunities. By investing in collider phenomenology, the high-energy physics community can help ensure that theoretical advances are translated into concrete tools that enable and enhance current and future experiments, and in turn, experimental results feed into a more complete theoretical understanding and motivate new questions and explorations.

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Aiming for tops of ALPs with a muon collider

Chigusa,

Girmohanta,

Nakai

et al. 2024

J. High Energ. Phys.

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Future muon colliders with center-of-mass energy of $$ \mathcal{O} $$ O (1 − 10) TeV can provide a clean high-energy environment with advantages in searches for TeV-scale axion-like particles (ALPs), pseudo-Nambu-Goldstone bosons associated with spontaneously broken global symmetries, which are widely predicted in physics beyond the Standard Model (SM). We exploit ALP couplings to SM fermions, and guided by unitarity constraints, build a search strategy focusing on the ALP decay to top quark pairs at muon colliders. It is found that a large parameter space of TeV-scale ALPs with TeV-scale decay constants can be probed by utilizing the ALP-top quark coupling.

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Electroweak ALP searches at a muon collider

Cited by 19 publications

References 90 publications

Flavonstrahlung in the B3 − L2 Z′ model at current and future colliders

Flavonstrahlung in the B3 − L2 Z′ model at current and future colliders

Theory of Collider Phenomena (TF07 Snowmass Report)

Aiming for tops of ALPs with a muon collider

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