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Title: GeV-scale messengers of Planck-scale dark matter

Abstract

If dark matter (DM) originates from physics near the Planck scale it could be directly detected via its multiple scattering signals, yet this requires a large cross section for DM interactions with atoms. Hence, detection of such DM could imply mediation by new low mass messengers. We propose that a dark U(1)d remnant of the underlying spacetime geometry or a unified theory may survive down to small mass scales ~ 1 GeV, connecting low energy Standard Model (SM) and Planck scale phenomena. Typical required cross sections for direct detection of Planck scale DM can be achieved through the U(1)d interactions of DM with SM quarks. Low energy intense sources may uncover the GeV scale messengers of Planckian physics, allowing for testable predictions. We assume that U(1)d is gauged baryon number, which implies several new electroweak charged particles are expected to arise near the weak scale to cancel gauge anomalies. The model generically gives rise to kinetic mixing between the U(1)d gauge boson and the photon, which may be measurable. In this scenario, direct detection of DM and measurements of a low energy messenger, including its kinetic mixing with the photon, can potentially shed light on the high energy character ofmore » the scenario. Furthermore, astrophysical considerations related to white dwarf stability against runaway nuclear fusion potentially disfavor DM heavier than ~ 1017 GeV within our assumed messenger model.« less

Authors:
;
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP)
OSTI Identifier:
1488977
Alternate Identifier(s):
OSTI ID: 1487264
Report Number(s):
BNL-209748-2018-JAAM
Journal ID: ISSN 2470-0010; PRVDAQ; 115035
Grant/Contract Number:  
SC0012704
Resource Type:
Published Article
Journal Name:
Physical Review D
Additional Journal Information:
Journal Name: Physical Review D Journal Volume: 98 Journal Issue: 11; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; GeV; Planck; boson; mass; dark matter; neutrino; paticle physics; electroweak; Higgs; scalar; SM; DM; phenomenology; standard model; EFT; gamma

Citation Formats

Davoudiasl, Hooman, and Mohlabeng, Gopolang. GeV-scale messengers of Planck-scale dark matter. United States: N. p., 2018. Web. doi:10.1103/PhysRevD.98.115035.
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Davoudiasl, Hooman, & Mohlabeng, Gopolang. GeV-scale messengers of Planck-scale dark matter. United States. https://doi.org/10.1103/PhysRevD.98.115035
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Davoudiasl, Hooman, and Mohlabeng, Gopolang. Thu . "GeV-scale messengers of Planck-scale dark matter". United States. https://doi.org/10.1103/PhysRevD.98.115035.
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@article{osti_1488977,
title = {GeV-scale messengers of Planck-scale dark matter},
author = {Davoudiasl, Hooman and Mohlabeng, Gopolang},
abstractNote = {If dark matter (DM) originates from physics near the Planck scale it could be directly detected via its multiple scattering signals, yet this requires a large cross section for DM interactions with atoms. Hence, detection of such DM could imply mediation by new low mass messengers. We propose that a dark U(1)d remnant of the underlying spacetime geometry or a unified theory may survive down to small mass scales ~ 1 GeV, connecting low energy Standard Model (SM) and Planck scale phenomena. Typical required cross sections for direct detection of Planck scale DM can be achieved through the U(1)d interactions of DM with SM quarks. Low energy intense sources may uncover the GeV scale messengers of Planckian physics, allowing for testable predictions. We assume that U(1)d is gauged baryon number, which implies several new electroweak charged particles are expected to arise near the weak scale to cancel gauge anomalies. The model generically gives rise to kinetic mixing between the U(1)d gauge boson and the photon, which may be measurable. In this scenario, direct detection of DM and measurements of a low energy messenger, including its kinetic mixing with the photon, can potentially shed light on the high energy character of the scenario. Furthermore, astrophysical considerations related to white dwarf stability against runaway nuclear fusion potentially disfavor DM heavier than ~ 1017 GeV within our assumed messenger model.},
doi = {10.1103/PhysRevD.98.115035},
journal = {Physical Review D},
number = 11,
volume = 98,
place = {United States},
year = {Thu Dec 27 00:00:00 EST 2018},
month = {Thu Dec 27 00:00:00 EST 2018}
}
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Publisher's Version of Record
https://doi.org/10.1103/PhysRevD.98.115035
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Cited by: 7 works
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Figures / Tables:

FIG. 1: FIG. 1:: Current limits on αd, plotted versus mAd. The dotted contours correspond to values of constant σnχ. The top green shaded region is ruled out by Υ(1S) decay, requiring αd < 0.014 [9, 10]. The solid black and gray dashed contours represent bounds and future projections obtained from anomalousmore » η and η′ decays, as described in Ref. [17]. The left panel shows bounds assuming the existence of an ultraviolet complete model without (energy/mass)2 enhanced contributions from a longitudinal Ad mode. The presented bounds are not sensitive to the levels of kinetic mixing considered in this work. On the right panel we include bounds from enhanced longitudinal Ad emission. The blue shaded region is the bound from B → K Ad and the red shaded region is the region constrained by Z → γ Ad as in Refs. [26, 27]. The darker grey region illustrates bounds from B → K Ad searches at LHCb and are obtained from Ref. [36]. For the bounds in the red and grey regions Ad is assumed to decay visibly to leptons, mediated by kinetic mixing. The bound in cyan is the LHCb limit on the search for visibly decaying dark photons rescaled to include a baryon coupling as in Ref. [36].« less
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