Axial vectors in DarkCast

Baruch, Chaja; Ilten, P.; Soreq, Yotam; Williams, M.

doi:10.1007/jhep11(2022)124

Cited by 12 publications

(2 citation statements)

References 107 publications

(142 reference statements)

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“…The null results from these experiments are translated into constraints on the kinetic mixing coefficient for a dark photon model, i.e., a Z which kinetically mixes only with the SM photon. To recast those limits to our model, we implemented the Stueckelberg model in DarkCast [63,64] which has a large repository of the most up-to-date searches on dark photons.…”

Section: Jhep03(2023)182mentioning

confidence: 99%

Combined constraints on dark photons and discovery prospects at the LHC and the Forward Physics Facility

Aboubrahim

Mahdi

Klasen

et al. 2023

J. High Energ. Phys.

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Hidden sectors are ubiquitous in supergravity theories, in strings and in branes. Well motivated models such as the Stueckelberg hidden sector model could provide a candidate for dark matter. In such models, the hidden sector communicates with the visible sector via the exchange of a dark photon (dark Z′) while dark matter is constituted of Dirac fermions in the hidden sector. Using data from collider searches and precision measurements of SM processes as well as the most recent limits from dark matter direct and indirect detection experiments, we perform a comprehensive scan over a wide range of the Z′ mass and set exclusion bounds on the parameter space from sub-GeV to several TeV. We then discuss the discovery potential of an $$ \mathcal{O} $$ O (TeV) scale Z′ at HL-LHC and the ability of future forward detectors to probe very weakly interacting sub-GeV Z′ bosons. Our analysis shows that the parameter space in which a Z′ can decay to hidden sector dark matter is severely constrained whereas limits become much weaker for a Z′ with no dark decays. The analysis also favors a self-thermalized dark sector which is necessary to satisfy the dark matter relic density.

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Section: Jhep03(2023)182mentioning

confidence: 99%

Combined constraints on dark photons and discovery prospects at the LHC and the Forward Physics Facility

Aboubrahim

Mahdi

Klasen

et al. 2023

J. High Energ. Phys.

View full text Add to dashboard Cite

show abstract

“…The null results from these experiments are translated into constraints on the kinetic mixing coefficient for a dark photon model, i.e., a Z which kinetically mixes only with the SM photon. To recast those limits to our model, we implemented the Stueckelberg model in DarkCast [120,213] which has a large repository of the most up-to-date searches on dark photons.…”

Section: Lhc Searches: Dijet Dilepton and Monojet Limitsmentioning

confidence: 99%

Hidden sectors and their implications for particle physics and cosmology

Wang

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Dark showers from Z-dark Z′ mixing

Cheng,

Jiang,

et al. 2024

J. High Energ. Phys.

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We discuss dark shower signals at the LHC from a dark QCD sector, containing GeV-scale dark pions. The portal with the Standard Model is given by the mixing of the Z boson with a dark Z′ coupled to the dark quarks. Both mass and kinetic mixings are included, but the mass mixing is the essential ingredient, as it is the one mediating visible decays of the long-lived dark pions. We focus especially on the possibility that the dark Z′ is lighter than the Z. Indirect constraints are dominated by electroweak precision tests, which we thoroughly discuss, showing that both Z-pole and low-energy observables are important. We then recast CMS and LHCb searches for displaced dimuon resonances to dark shower signals initiated by the production of on-shell Z or Z′, where the visible signature is left by a dark pion decaying to μ+μ−. We demonstrate how dark shower topologies have already tested new parameter space in Run 2, reaching better sensitivity on a light dark Z′ compared to the flavor-changing decays of B mesons, which can produce a single dark pion at a time, and the electroweak precision tests.

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Axial vectors in DarkCast

Cited by 12 publications

References 107 publications

Combined constraints on dark photons and discovery prospects at the LHC and the Forward Physics Facility

Combined constraints on dark photons and discovery prospects at the LHC and the Forward Physics Facility

Hidden sectors and their implications for particle physics and cosmology

Dark showers from Z-dark Z′ mixing

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