Neutrino floor in leptophilic 
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 models: Modification in 
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Sadhukhan, Soumya; Singh, Manvinder Pal

doi:10.1103/physrevd.103.015015

Cited by 16 publications

(11 citation statements)

References 46 publications

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“…Note added. Upon completion of this work we became aware of a very recent article [134] complementary to our analysis that explored modifications of the CEνNS neutrino floor in a gauged U(1) Lµ−Lτ .…”

Section: Jhep12(2020)155mentioning

confidence: 99%

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Solar neutrino probes of the muon anomalous magnetic moment in the gauged $$ \mathrm{U}{(1)}_{L_{\mu }-{L}_{\tau }} $$

Amaral

Cerdeño

Foldenauer

et al. 2020

J. High Energ. Phys.

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Models of gauged $$ \mathrm{U}{(1)}_{L_{\mu }-{L}_{\tau }} $$ U 1 L μ − L τ can provide a solution to the long-standing discrepancy between the theoretical prediction for the muon anomalous magnetic moment and its measured value. The extra contribution is due to a new light vector mediator, which also helps to alleviate an existing tension in the determination of the Hubble parameter. In this article, we explore ways to probe this solution via the scattering of solar neutrinos with electrons and nuclei in a range of experiments and considering high and low solar metallicity scenarios. In particular, we reevaluate Borexino constraints on neutrino-electron scattering, finding them to be more stringent than previously reported, and already excluding a part of the (g − 2)μ explanation with mediator masses smaller than 2 × 10−2 GeV. We then show that future direct dark matter detectors will be able to probe most of the remaining solution. Due to its large exposure, LUX-ZEPLIN will explore regions with mediator masses up to 5 × 10−2 GeV and DARWIN will be able to extend the search beyond 10−1 GeV, thereby covering most of the area compatible with (g − 2)μ. For completeness, we have also computed the constraints derived from the recent XENON1T electron recoil search and from the CENNS-10 LAr detector, showing that none of them excludes new areas of the parameter space. Should the excess in the muon anomalous magnetic moment be confirmed, our work suggests that direct detection experiments could provide crucial information with which to test the $$ \mathrm{U}{(1)}_{L_{\mu }-{L}_{\tau }} $$ U 1 L μ − L τ solution, complementary to efforts in neutrino experiments and accelerators.

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Section: Jhep12(2020)155mentioning

confidence: 99%

“…The sensitivity of direct detection experiments to new physics in the neutrino sector can also be interpreted as an increase in the so-called neutrino floor, below which neutrino-nucleus coherent scattering becomes a dominant background for dark matter searches[86,134].…”

mentioning

confidence: 99%

Solar neutrino probes of the muon anomalous magnetic moment in the gauged $$ \mathrm{U}{(1)}_{L_{\mu }-{L}_{\tau }} $$

Amaral

Cerdeño

Foldenauer

et al. 2020

J. High Energ. Phys.

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show abstract

“…Flavour and generation specific realizations are then usually invoked. This is the case of leptophilic models, with the Z coupling mainly to leptons [69][70][71][72][73][74][75][76][77][78]; leptophobic models, where the Z couples mainly to quarks [29,76,[79][80][81][82]; and models where the Z couples to the SM fermions in a non-universal way, for instance, with couplings to only the third generation quarks or first generation leptons [40,45]. Allowing Z 's to decay predominantly into invisible states (in our case, V χ , A χ V f , A f ) also makes collider bounds weaker.…”

Section: Jhep09(2021)056mentioning

confidence: 99%

Testing freeze-in with axial and vector Z′ bosons

Cosme

Dutra

Godfrey

et al. 2021

J. High Energ. Phys.

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The freeze-in production of Feebly Interacting Massive Particle (FIMP) dark matter in the early universe is an appealing alternative to the well-known — and constrained — Weakly Interacting Massive Particle (WIMP) paradigm. Although challenging, the phenomenology of FIMP dark matter has been receiving growing attention and is possible in a few scenarios. In this work, we contribute to this endeavor by considering a Z′ portal to fermionic dark matter, with the Z′ having both vector and axial couplings and a mass ranging from MeV up to PeV. We evaluate the bounds on both freeze-in and freeze-out from direct detection, atomic parity violation, leptonic anomalous magnetic moments, neutrino-electron scattering, collider, and beam dump experiments. We show that FIMPs can already be tested by most of these experiments in a complementary way, whereas WIMPs are especially viable in the Z′ low mass regime, in addition to the Z′ resonance region. We also discuss the role of the axial couplings of Z′ in our results. We therefore hope to motivate specific realizations of this model in the context of FIMPs, as well as searches for these elusive dark matter candidates.

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“…Flavour and generation specific realizations are then usually invoked. This is the case of leptophilic models, with the Z coupling mainly to leptons [68][69][70][71][72][73][74][75][76]; leptophobic models, where the Z couples mainly to quarks [29,74,[77][78][79][80]; and models where the Z couples to the SM fermions in a non-universal way, for instance, with couplings to only the third generation quarks or first generation leptons [40,45]. Allowing Z 's to decay predominantly into invisible states (in our case, V χ , A χ V f , A f ) also makes collider bounds weaker.…”

Section: The Modelmentioning

confidence: 99%

Testing freeze-in with axial and vector $Z'$ bosons

Cosme,

Dutra,

Godfrey

et al. 2021

Preprint

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The freeze-in production of Feebly Interacting Massive Particle (FIMP) dark matter in the early universe is an appealing alternative to the well-known -and constrained -Weakly Interacting Massive Particle (WIMP) paradigm. Although challenging, the phenomenology of FIMP dark matter has been receiving growing attention and is possible in a few scenarios. In this work, we contribute to this endeavor by considering a Z portal to fermionic dark matter, with the Z having both vector and axial couplings and a mass ranging from MeV up to PeV. We evaluate the bounds on both freeze-in and freeze-out from direct detection, atomic parity violation, leptonic anomalous magnetic moments, neutrino-electron scattering, collider, and beam dump experiments. We show that FIMPs can already be tested by most of these experiments in a complementary way, whereas WIMPs are especially viable in the Z low mass regime, in addition to the Z resonance region. We also discuss the role of the axial couplings of Z in our results. We therefore hope to motivate specific realizations of this model in the context of FIMPs, as well as searches for these elusive dark matter candidates.

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Neutrino floor in leptophilic U(1) models: Modification in U(1)L

Cited by 16 publications

References 46 publications

Solar neutrino probes of the muon anomalous magnetic moment in the gauged $$ \mathrm{U}{(1)}_{L_{\mu }-{L}_{\tau }} $$

Solar neutrino probes of the muon anomalous magnetic moment in the gauged $$ \mathrm{U}{(1)}_{L_{\mu }-{L}_{\tau }} $$

Testing freeze-in with axial and vector Z′ bosons

Testing freeze-in with axial and vector $Z'$ bosons

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