Search for a heavy dark photon at future e+e− colliders

He, Min; He, Xiao-Gang; Huang, Cheng-Kai; Li, Gang

doi:10.1007/jhep03(2018)139

Cited by 27 publications

(11 citation statements)

References 55 publications

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“…Projected constraints are discussed in ref. [93] in the case where the dark photon couples to the SM particles only via the kinetic mixing with the U(1) Y gauge boson. The upper bound on the kinetic mixing parameter was found to be about 0.003.…”

Section: Z (B−l) 3 Production and Decay In Collidersmentioning

confidence: 99%

Self-interacting dark matter with a vector mediator: kinetic mixing with the $$ \mathrm{U}{(1)}_{{\left(B-L\right)}_3} $$ gauge boson

Kamada

Yamada

Yanagida

2019

J. High Energ. Phys.

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A spontaneously broken hidden U(1) h gauge symmetry can explain both the dark matter stability and the observed relic abundance. In this framework, the light gauge boson can mediate the strong dark matter self-interaction, which addresses astrophysical observations that are hard to explain in collisionless cold dark matter. Motivated by flavoured grand unified theories, we introduce right-handed neutrinos and a flavoured B − L gauge symmetry for the third family U(1) (B−L) 3. The unwanted relic of the U(1) h gauge boson decays into neutrinos via the kinetic mixing with the U(1) (B−L) 3 gauge boson. Indirect detection bounds on dark matter are systematically weakened, since dark matter annihilation results in neutrinos. However, the kinetic mixing between U(1) (B−L) 3 and U(1) Y gauge bosons are induced by quantum corrections and leads to an observable signal in direct and indirect detection experiments of dark matter. This model can also explain the baryon asymmetry of the Universe via the thermal leptogenesis. In addition, we discuss the possibility of explaining the lepton flavour universality violation in semi-leptonic B meson decays that is recently found in the LHCb experiment.

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Section: Z (B−l) 3 Production and Decay In Collidersmentioning

confidence: 99%

Self-interacting dark matter with a vector mediator: kinetic mixing with the $$ \mathrm{U}{(1)}_{{\left(B-L\right)}_3} $$ gauge boson

Kamada

Yamada

Yanagida

2019

J. High Energ. Phys.

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“…They are supposed to be much lighter than 90 GeV, the mass of the Z boson. Such particles have also been subject of intense searches at low energy colliders and accelerators [29][30][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45][46][47]. We emphasize that when we refer to the Z mass in our work, we mean the gauge boson mass in a general way, because the Z can take the form of a dark photon-like boson.…”

Section: Introductionmentioning

confidence: 99%

Neutrino-electron scattering: general constraints on Z′ and dark photon models

Lindner

Queiroz

Rodejohann

et al. 2018

J. High Energ. Phys.

105

121

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We study the framework of U (1) X models with kinetic mixing and/or mass mixing terms. We give general and exact analytic formulas and derive limits on a variety of U (1) X models that induce new physics contributions to neutrino-electron scattering, taking into account interference between the new physics and Standard Model contributions. Data from TEXONO, CHARM-II and GEMMA are analyzed and shown to be complementary to each other to provide the most restrictive bounds on masses of the new vector bosons. In particular, we demonstrate the validity of our results to dark photon-like as well as light Z models.

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“…In addition, Figure 4 shows that the Belle II experiment, which recently started taking data and runs at a similar center-of-mass energy as BaBar, is expected to be sensitive to ε values that are about three times smaller than those excluded by BaBar (26). Looking farther down the road, a Future Circular Collider could produce world-leading sensitivity up to higher masses (27)(28)(29). These results and projections demonstrate that e + e − colliders are powerful probes of prompt visible dark photon decays.…”

Section: Searches For Visible Dark Photonsmentioning

confidence: 89%

Searches for Dark Photons at Accelerators

Graham

Hearty

Williams

2021

Annu. Rev. Nucl. Part. Sci.

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Dark matter particles may interact with other dark matter particles via a new force mediated by a dark photon, A′, which would be the dark-sector analog to the ordinary photon of electromagnetism. The dark photon can obtain a highly suppressed mixing-induced coupling to the electromagnetic current, providing a portal through which dark photons can interact with ordinary matter. This review focuses on A′ scenarios that are potentially accessible to accelerator-based experiments. We summarize the existing constraints placed by such experiments on dark photons, highlight what could be observed in the near future, and discuss the major experimental challenges that must be overcome to improve sensitivities. Expected final online publication date for the Annual Review of Nuclear and Particle Science, Volume 71 is September 2021. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.

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Search for a heavy dark photon at future e+e− colliders

Cited by 27 publications

References 55 publications

Self-interacting dark matter with a vector mediator: kinetic mixing with the $$ \mathrm{U}{(1)}_{{\left(B-L\right)}_3} $$ gauge boson

Self-interacting dark matter with a vector mediator: kinetic mixing with the $$ \mathrm{U}{(1)}_{{\left(B-L\right)}_3} $$ gauge boson

Neutrino-electron scattering: general constraints on Z′ and dark photon models

Searches for Dark Photons at Accelerators

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