Dark Matter prospects with COSI: ALPs, PBHs and sub-GeV Dark Matter
| dc.contributor.author | Caputo, Andrea | |
| dc.contributor.author | Negro, Michela | |
| dc.contributor.author | Regis, Marco | |
| dc.contributor.author | Taoso, Marco | |
| dc.date.accessioned | 2022-11-10T17:33:39Z | |
| dc.date.available | 2022-11-10T17:33:39Z | |
| dc.date.issued | 2022-10-17 | |
| dc.description.abstract | . We study the prospects in the search of dark matter offered by the newly selected NASA MeV mission COSI (Compton Spectrometer and Imager). This instrument is designed and optimized to detect spectral lines, and we show it offers an exquisite possibility to detect dark matter directly decaying or annihilating into monochromatic gamma-rays. This is the case, for example, for axion-like particles (ALPs) which undergo decay into two photons. Furthermore, we show that COSI can lead to important progress in the quest for primordial black holes (PBHs) dark matter, through measurements of the 511 keV line from the positrons produced via Hawking evaporation. We also outline opportunities for the search of continuum signals, such as those expected from sub-GeV dark matter annihilation/decay into leptons and PBH evaporation into photons. We find that also in this case COSI can lead to improvements of current bounds | en_US |
| dc.description.sponsorship | We want to thank the COSI dark matter topical working group, and in particular we thank Shigeki Matsumoto, Tom Melia, Thomas Siegert, Tadayuki Takahashi for the fruitful discussions and kind support; John Tomsick and Andreas Zoglouer for crucial insights about the COSI instrument and capabilities. AC also thanks William De Rocco for useful discussions about the 511 keV lines and PBH dark matter. AC is supported by the Foreign Postdoctoral Fellowship Program of the Israel Academy of Sciences and Humanities and also acknowledges support from the Israel Science Foundation (Grant 1302/19), the US-Israeli BSF (Grant 2018236), the German-Israeli GIF (Grant I-2524-303.7) and the European Research Council (ERC) under the EU Horizon 2020 Programme (ERC-CoG-2015-Proposal n. 682676 LDMThExp). MN acknowledges NASA support under award number 80GSFC21M0002. MR acknowledges support by the PRIN research grant “From Darklight to Dark Matter: understanding the galaxy/matter connection to measure the Universe” No. 20179P3PKJ funded by MIUR, and by the research grant TAsP (Theoretical Astroparticle Physics) funded by Istituto Nazionale di Fisica Nucleare (INFN). MT acknowledges the research grant “The Dark Universe: A Synergic Multimessenger Approach No. 2017X7X85” funded by MIUR, and the project “Theoretical Astroparticle Physics (TAsP)” funded by Istituto Nazionale di Fisica Nucleare (INFN). | en_US |
| dc.description.uri | https://arxiv.org/abs/2210.09310 | en_US |
| dc.format.extent | 16 pages | en_US |
| dc.genre | journal articles | en_US |
| dc.genre | preprints | en_US |
| dc.identifier | doi:10.13016/m2jkhb-rryo | |
| dc.identifier.uri | https://doi.org/10.48550/arXiv.2210.09310 | |
| dc.identifier.uri | http://hdl.handle.net/11603/26295 | |
| dc.language.iso | en_US | en_US |
| dc.relation.isAvailableAt | The University of Maryland, Baltimore County (UMBC) | |
| dc.relation.ispartof | UMBC Center for Space Sciences and Technology | |
| dc.relation.ispartof | UMBC Faculty Collection | |
| dc.rights | This item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author. | en_US |
| dc.title | Dark Matter prospects with COSI: ALPs, PBHs and sub-GeV Dark Matter | en_US |
| dc.type | Text | en_US |