Width of the 511 KeV Line from the Bulge of the Galaxy
| dc.creator | Zhitnitsky, Ariel | |
| dc.date | 2006-07-17 | |
| dc.date | 2007-10-04 | |
| dc.date.accessioned | 2026-07-07T11:04:05Z | |
| dc.date.available | 2026-07-07T11:04:05Z | |
| dc.description | In this paper I present the detail estimations for the width of the 511 keV line produced by a mechanism when dark matter is represented by macroscopically large dense nuggets. I argue that the width of 511 keV emission in this mechanism is very narrow (in a few keV range) in agreement with all observations. The dominant mechanism of the annihilation in this case is the positronium formation e^+e^-to ^1S_0 to 2γrather than a direct e^+e^- to 2γ$ annihilation. I also discuss some generic features of the γrays spectrum (in few MeV range) resulting from this mechanism. | |
| dc.description | final version to appear in PRD | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0607361 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0607361 | |
| dc.identifier | Phys.Rev.D76:103518,2007 | |
| dc.identifier | doi:10.1103/PhysRevD.76.103518 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/188768 | |
| dc.subject | Astrophysics | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Width of the 511 KeV Line from the Bulge of the Galaxy | |
| dc.type | text |