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

Aboubrahim, Amin; Mahdi, Altakach, Mohammad; Klasen, M.; Nath, Pran; Wang, Zhu-Yao

doi:10.1007/jhep03(2023)182

Cited by 9 publications

(3 citation statements)

References 127 publications

(141 reference statements)

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“…The Boltzmann equations governing the evolution of the visible and hidden sectors are coupled and involve the evolution equation for ξ(T). Such an equation was derived in [39][40][41] and applied in a variety of settings in [42], consistent with all experimental constraints on hidden-sector matter from terrestrial and astrophysical data [43]. It is found that hidden sectors can affect observable phenomena in the visible sector, such as the density of thermal relics.…”

Section: Hidden Sectors Intertwine Particle Physics and Cosmologymentioning

confidence: 57%

Particle Physics and Cosmology Intertwined

Nath

2024

Entropy

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While the standard model accurately describes data at the electroweak scale without the inclusion of gravity, beyond the standard model, physics is increasingly intertwined with gravitational phenomena and cosmology. Thus, the gravity-mediated breaking of supersymmetry in supergravity models leads to sparticle masses, which are gravitational in origin, observable at TeV scales and testable at the LHC, and supergravity also provides a candidate for dark matter, a possible framework for inflationary models and for models of dark energy. Further, extended supergravity models and string and D-brane models contain hidden sectors, some of which may be feebly coupled to the visible sector, resulting in heat exchange between the visible and hidden sectors. Because of the couplings between the sectors, both particle physics and cosmology are affected. The above implies that particle physics and cosmology are intrinsically intertwined in the resolution of essentially all of the cosmological phenomena, such as dark matter and dark energy, and in the resolution of cosmological puzzles, such as the Hubble tension and the EDGES anomaly. Here, we give a brief overview of the intertwining and its implications for the discovery of sparticles, as well as the resolution of cosmological anomalies and the identification of dark matter and dark energy as major challenges for the coming decades.

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Section: Hidden Sectors Intertwine Particle Physics and Cosmologymentioning

confidence: 57%

Particle Physics and Cosmology Intertwined

Nath

2024

Entropy

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“…Here we discuss experimental limits on dark matter that arises in the Stueckelberg extension of SM discussed in previous chapters and specifically on the dark fermion. The analysis presented in this chapter is based on the work of Ref [86].…”

Section: Combined Constraints On Dark Photons and Discovery Prospectsmentioning

confidence: 99%

“…In this Chapter, we focus on FASER experiment which is able to detect a long-lived dark photon. The analysis presented in this chapter is based on the work of Ref [86].…”

Section: Summary Of the Dark Photon Constraints And Potential Discoverymentioning

confidence: 99%

Hidden sectors and their implications for particle physics and cosmology

Wang

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Anomaly-free dark matter models with one-loop neutrino masses and a gauged U(1) symmetry

de Boer,

Klasen,

Zeinstra

2024

J. High Energ. Phys.

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We systematically study and classify scotogenic models with a local U(1) gauge symmetry. These models give rise to radiative neutrino masses and a stable dark matter candidate, but avoid the theoretical problems of global and discrete symmetries. We restrict the dark sector particle content to up to four scalar or fermionic SU(2) singlets, doublets or triplets and use theoretical arguments based on anomaly freedom, Lorentz and gauge symmetry to find all possible charge assignments of these particles. The U(1) symmetry can be broken by a new Higgs boson to a residual discrete symmetry, that still stabilizes the dark matter candidate. We list the particle content and charge assignments of all non-equivalent models. Specific examples in our class of models that have been studied previously in the literature are the U(1)D scotogenic and singlet-triplet scalar models breaking to Z2. We also briefly discuss the new phenomenological aspects of our model arising from the presence of a new massless dark photon or massive Z′ boson as well as the additional Higgs boson.

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

Cited by 9 publications

References 127 publications

Particle Physics and Cosmology Intertwined

Particle Physics and Cosmology Intertwined

Hidden sectors and their implications for particle physics and cosmology

Anomaly-free dark matter models with one-loop neutrino masses and a gauged U(1) symmetry

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