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Title: Heavy Dark Matter Annihilation from Effective Field Theory

Abstract

We formulate here an effective field theory description for $$\mathrm{SU}(2{)}_{L}$$ triplet fermionic dark matter by combining nonrelativistic dark matter with gauge bosons in the soft-collinear effective theory. For a given dark matter mass, the annihilation cross section to line photons is obtained with 5% precision by simultaneously including Sommerfeld enhancement and the resummation of electroweak Sudakov logarithms at next-to-leading logarithmic order. Using these results, we present more accurate and precise predictions for the gamma-ray line signal from annihilation, updating both existing constraints and the reach of future experiments.

Authors:
 [1];  [2];  [2]
  1. Univ. of Massachusetts, Amherst, MA (United States). Physics Dept.
  2. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Center for Theoretical Physics
Publication Date:
Research Org.:
Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26); USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25); Simons Foundation (United States)
OSTI Identifier:
1505731
Alternate Identifier(s):
OSTI ID: 1228170
Grant/Contract Number:  
SC0011090; SC0012567; 327942; SC00012567
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 114; Journal Issue: 21; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Ovanesyan, Grigory, Slatyer, Tracy R., and Stewart, Iain W. Heavy Dark Matter Annihilation from Effective Field Theory. United States: N. p., 2015. Web. doi:10.1103/physrevlett.114.211302.
Ovanesyan, Grigory, Slatyer, Tracy R., & Stewart, Iain W. Heavy Dark Matter Annihilation from Effective Field Theory. United States. doi:10.1103/physrevlett.114.211302.
Ovanesyan, Grigory, Slatyer, Tracy R., and Stewart, Iain W. Wed . "Heavy Dark Matter Annihilation from Effective Field Theory". United States. doi:10.1103/physrevlett.114.211302. https://www.osti.gov/servlets/purl/1505731.
@article{osti_1505731,
title = {Heavy Dark Matter Annihilation from Effective Field Theory},
author = {Ovanesyan, Grigory and Slatyer, Tracy R. and Stewart, Iain W.},
abstractNote = {We formulate here an effective field theory description for $\mathrm{SU}(2{)}_{L}$ triplet fermionic dark matter by combining nonrelativistic dark matter with gauge bosons in the soft-collinear effective theory. For a given dark matter mass, the annihilation cross section to line photons is obtained with 5% precision by simultaneously including Sommerfeld enhancement and the resummation of electroweak Sudakov logarithms at next-to-leading logarithmic order. Using these results, we present more accurate and precise predictions for the gamma-ray line signal from annihilation, updating both existing constraints and the reach of future experiments.},
doi = {10.1103/physrevlett.114.211302},
journal = {Physical Review Letters},
issn = {0031-9007},
number = 21,
volume = 114,
place = {United States},
year = {2015},
month = {5}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 25 works
Citation information provided by
Web of Science

Figures / Tables:

FIG. 1 FIG. 1: Resummed leading and next-to-leading logarithmic electroweak corrections for χ+χ0χ0 →ZZ,Zγ,γγ. Only high scale variation by a factor of 2 from $μ_{m_{χ}}$ = 2mχ is shown. Low scale variation has a 20% smaller error band for the top plot and a 5% bigger error band for the bottom plot.

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    Figures / Tables found in this record:

      Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.