Strongly interacting dark matter: Self-interactions and keV lines
Abstract
Herein, we consider a simple supersymmetric hidden sector: pure gauge theory. Dark matter is made up of hidden glueballinos with mass and hidden glueballs with mass near the confinement scale . For and , the glueballinos freeze out with the correct relic density and self-interact through glueball exchange to resolve small-scale structure puzzles. An immediate consequence is that the glueballino spectrum has a hyperfine splitting of order . We illustrate that the radiative decays of the excited state can explain the observed 3.5 keV x-ray line signal from clusters of galaxies, Andromeda, and the Milky Way.
- Authors:
-
- California Inst. of Technology (CalTech), Pasadena, CA (United States)
- Univ. of California, Irvine, CA (United States); European Organization for Nuclear Research (CERN), Geneva (Switzerland)
- Univ. of California, Irvine, CA (United States)
- Technion-Israel Inst. of Technology, Haifa (Israel)
- Publication Date:
- Research Org.:
- California Institute of Technology (CalTech), Pasadena, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), High Energy Physics (HEP); National Science Foundation (NSF); Gordon and Betty Moore Foundation; Guggenheim Foundation
- OSTI Identifier:
- 1599381
- Alternate Identifier(s):
- OSTI ID: 1181192
- Grant/Contract Number:
- SC0011632; PHY-1316792; PHY-1214648
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review. D, Particles, Fields, Gravitation and Cosmology
- Additional Journal Information:
- Journal Volume: 90; Journal Issue: 9; Journal ID: ISSN 1550-7998
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 79 ASTRONOMY AND ASTROPHYSICS
Citation Formats
Boddy, Kimberly K., Feng, Jonathan L., Kaplinghat, Manoj, Shadmi, Yael, and Tait, Timothy M. P. Strongly interacting dark matter: Self-interactions and keV lines. United States: N. p., 2014.
Web. doi:10.1103/PhysRevD.90.095016.
Boddy, Kimberly K., Feng, Jonathan L., Kaplinghat, Manoj, Shadmi, Yael, & Tait, Timothy M. P. Strongly interacting dark matter: Self-interactions and keV lines. United States. https://doi.org/10.1103/PhysRevD.90.095016
Boddy, Kimberly K., Feng, Jonathan L., Kaplinghat, Manoj, Shadmi, Yael, and Tait, Timothy M. P. Tue .
"Strongly interacting dark matter: Self-interactions and keV lines". United States. https://doi.org/10.1103/PhysRevD.90.095016. https://www.osti.gov/servlets/purl/1599381.
@article{osti_1599381,
title = {Strongly interacting dark matter: Self-interactions and keV lines},
author = {Boddy, Kimberly K. and Feng, Jonathan L. and Kaplinghat, Manoj and Shadmi, Yael and Tait, Timothy M. P.},
abstractNote = {Herein, we consider a simple supersymmetric hidden sector: pure SU(N) gauge theory. Dark matter is made up of hidden glueballinos with mass mX and hidden glueballs with mass near the confinement scale Λ. For mX~1TeV and Λ~100MeV, the glueballinos freeze out with the correct relic density and self-interact through glueball exchange to resolve small-scale structure puzzles. An immediate consequence is that the glueballino spectrum has a hyperfine splitting of order Λ2/mX~10keV. We illustrate that the radiative decays of the excited state can explain the observed 3.5 keV x-ray line signal from clusters of galaxies, Andromeda, and the Milky Way.},
doi = {10.1103/PhysRevD.90.095016},
journal = {Physical Review. D, Particles, Fields, Gravitation and Cosmology},
number = 9,
volume = 90,
place = {United States},
year = {Tue Nov 18 00:00:00 EST 2014},
month = {Tue Nov 18 00:00:00 EST 2014}
}
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