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Title: Variation of α from a dark matter force

Abstract

Here, we consider a long range scalar force that mainly couples to dark matter and unstable Standard Model states, like the muon, with tiny strength. Probing this type of force would present a challenge to observations. We point out that the dependence of the induced background scalar field on dark matter number density can cause the mass of the unstable particles to have spatial and temporal variations. These variations, in turn, leave an imprint on the value of the fine structure constant, through threshold corrections, that could be detected in astronomical and cosmological measurements.

Authors:
 [1]; ORCiD logo [1]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States)
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1483150
Alternate Identifier(s):
OSTI ID: 1483755
Report Number(s):
BNL-209516-2018-JAAM
Journal ID: ISSN 0370-2693
Grant/Contract Number:  
SC0012704
Resource Type:
Journal Article: Published Article
Journal Name:
Physics Letters. Section B
Additional Journal Information:
Journal Volume: 788; Journal Issue: C; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; electroweak; boson; mass; dark matter; neutrino; paticle physics; Higgs; scalar; SM; DM; phenomenology; standard model; EFT; gamma

Citation Formats

Davoudiasl, Hooman, and Giardino, Pier Paolo. Variation of α from a dark matter force. United States: N. p., 2018. Web. doi:10.1016/j.physletb.2018.11.041.
Davoudiasl, Hooman, & Giardino, Pier Paolo. Variation of α from a dark matter force. United States. doi:10.1016/j.physletb.2018.11.041.
Davoudiasl, Hooman, and Giardino, Pier Paolo. Fri . "Variation of α from a dark matter force". United States. doi:10.1016/j.physletb.2018.11.041.
@article{osti_1483150,
title = {Variation of α from a dark matter force},
author = {Davoudiasl, Hooman and Giardino, Pier Paolo},
abstractNote = {Here, we consider a long range scalar force that mainly couples to dark matter and unstable Standard Model states, like the muon, with tiny strength. Probing this type of force would present a challenge to observations. We point out that the dependence of the induced background scalar field on dark matter number density can cause the mass of the unstable particles to have spatial and temporal variations. These variations, in turn, leave an imprint on the value of the fine structure constant, through threshold corrections, that could be detected in astronomical and cosmological measurements.},
doi = {10.1016/j.physletb.2018.11.041},
journal = {Physics Letters. Section B},
number = C,
volume = 788,
place = {United States},
year = {Fri Nov 23 00:00:00 EST 2018},
month = {Fri Nov 23 00:00:00 EST 2018}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1016/j.physletb.2018.11.041

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