Heavy Dark Matter Annihilation from Effective Field Theory
Journal Article
·
· Physical Review Letters
- Univ. of Massachusetts, Amherst, MA (United States). Physics Dept.
- Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Center for Theoretical Physics
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.
- Research Organization:
- Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Nuclear Physics (NP); USDOE Office of Science (SC), High Energy Physics (HEP); Simons Foundation (United States)
- Grant/Contract Number:
- SC0011090; SC0012567; 327942; SC00012567
- OSTI ID:
- 1505731
- Alternate ID(s):
- OSTI ID: 1228170
- Journal Information:
- Physical Review Letters, Vol. 114, Issue 21; ISSN 0031-9007
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 58 works
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