Heavy Dark Matter Annihilation from Effective Field Theory
We formulate an effective field theory description for SU(2)[subscript 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%...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
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American Physical Society
2015
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| Online Access: | http://hdl.handle.net/1721.1/97133 https://orcid.org/0000-0003-0248-0979 https://orcid.org/0000-0001-9699-9047 |
| _version_ | 1826191144769290240 |
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| author | Ovanesyan, Grigory Slatyer, Tracy Robyn Stewart, Iain |
| author2 | Massachusetts Institute of Technology. Center for Theoretical Physics |
| author_facet | Massachusetts Institute of Technology. Center for Theoretical Physics Ovanesyan, Grigory Slatyer, Tracy Robyn Stewart, Iain |
| author_sort | Ovanesyan, Grigory |
| collection | MIT |
| description | We formulate an effective field theory description for SU(2)[subscript 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. |
| first_indexed | 2024-09-23T08:50:56Z |
| format | Article |
| id | mit-1721.1/97133 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T08:50:56Z |
| publishDate | 2015 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/971332022-09-23T14:57:22Z Heavy Dark Matter Annihilation from Effective Field Theory Ovanesyan, Grigory Slatyer, Tracy Robyn Stewart, Iain Massachusetts Institute of Technology. Center for Theoretical Physics Massachusetts Institute of Technology. Department of Physics Slatyer, Tracy Robyn Stewart, Iain We formulate an effective field theory description for SU(2)[subscript 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. United States. Dept. of Energy (Grant DE-SC00012567) United States. Dept. of Energy (Grant DE-SC0011090) Simons Foundation (Investigator Grant 327942) 2015-06-01T13:20:39Z 2015-06-01T13:20:39Z 2015-05 2014-10 2015-05-27T22:00:03Z Article http://purl.org/eprint/type/JournalArticle 0031-9007 1079-7114 http://hdl.handle.net/1721.1/97133 Ovanesyan, Grigory, Tracy R. Slatyer, and Iain W. Stewart. "Heavy Dark Matter Annihilation from Effective Field Theory." Phys. Rev. Lett. 114, 211302 (May 2015). © 2015 American Physical Society https://orcid.org/0000-0003-0248-0979 https://orcid.org/0000-0001-9699-9047 en http://dx.doi.org/10.1103/PhysRevLett.114.211302 Physical Review Letters Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. American Physical Society application/pdf American Physical Society American Physical Society |
| spellingShingle | Ovanesyan, Grigory Slatyer, Tracy Robyn Stewart, Iain Heavy Dark Matter Annihilation from Effective Field Theory |
| title | Heavy Dark Matter Annihilation from Effective Field Theory |
| title_full | Heavy Dark Matter Annihilation from Effective Field Theory |
| title_fullStr | Heavy Dark Matter Annihilation from Effective Field Theory |
| title_full_unstemmed | Heavy Dark Matter Annihilation from Effective Field Theory |
| title_short | Heavy Dark Matter Annihilation from Effective Field Theory |
| title_sort | heavy dark matter annihilation from effective field theory |
| url | http://hdl.handle.net/1721.1/97133 https://orcid.org/0000-0003-0248-0979 https://orcid.org/0000-0001-9699-9047 |
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