Galactic Center gamma ray excess from two Higgs doublet portal dark matter
dc.contributor.author | Okada, Nobuchika | |
dc.contributor.author | Seto, Osamu | |
dc.contributor.other | University of Alabama Tuscaloosa | |
dc.contributor.other | Hokkai Gakuen University | |
dc.date.accessioned | 2019-05-16T18:44:31Z | |
dc.date.available | 2019-05-16T18:44:31Z | |
dc.date.copyright | 2014 | |
dc.date.issued | 2014-10-21 | |
dc.description.abstract | We consider a simple extension of the type-II two-Higgs-doublet model by introducing a real scalar as a candidate for dark matter in the present Universe. The main annihilation mode of the dark matter particle with a mass of around 31-40 GeV is into a b (b) over bar pair, and this annihilation mode suitably explains the observed excess of the gamma-ray flux from the Galactic Center. We identify the parameter region of the model that can fit the gamma-ray excess and satisfy phenomenological constraints, such as the observed dark matter relic density and the null results of direct dark matter search experiments. Most of the parameter region is found to be within the search reach of future direct dark matter detection experiments. | en_US |
dc.format.mimetype | application/pdf | |
dc.identifier.citation | Okada, N., Seto, O. (2014): Galactic Center Gamma Ray Excess from Two Higgs Doublet Portal Dark Matter. Physical Review D, 90(8). DOI: https://doi.org/10.1103/PhysRevD.90.083523 | |
dc.identifier.doi | 10.1103/PhysRevD.90.083523 | |
dc.identifier.issn | 1550-7998 | |
dc.identifier.uri | http://ir.ua.edu/handle/123456789/5561 | |
dc.language | English | |
dc.language.iso | en_US | |
dc.publisher | American Physical Society | |
dc.rights.holder | American Physical Society | |
dc.subject | FERMI-LAT | |
dc.subject | BUBBLES | |
dc.subject | Astronomy & Astrophysics | |
dc.subject | Physics, Particles & Fields | |
dc.subject | Physics | |
dc.title | Galactic Center gamma ray excess from two Higgs doublet portal dark matter | en_US |
dc.type | text | |
dc.type | Article |
Files
Original bundle
1 - 1 of 1
Loading...
- Name:
- NOkada_Galactic Center Gamma Ray Excess from Two Higgs Doublet Portal Dark Matter_Physics and Astronomy.pdf
- Size:
- 615.11 KB
- Format:
- Adobe Portable Document Format
- Description:
- Main article
License bundle
1 - 1 of 1
No Thumbnail Available
- Name:
- license.txt
- Size:
- 1.27 KB
- Format:
- Item-specific license agreed upon to submission
- Description: