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Title: Cosmological implications of Dark Matter bound states

Abstract

We present generic formulæ for computing how Sommerfeld corrections together with bound-state formation affects the thermal abundance of Dark Matter with non-abelian gauge interactions. We consider DM as a fermion 3plet (wino) or 5plet under SU(2) {sub L} . In the latter case bound states raise to 11.5 TeV the DM mass required to reproduce the cosmological DM abundance and give indirect detection signals such as (for this mass) a dominant γ-line around 70 GeV. Furthermore, we consider DM co-annihilating with a colored particle, such as a squark or a gluino, finding that bound state effects are especially relevant in the latter case.

Authors:
 [1]; ;  [2];  [3]
  1. Scuola Normale Superiore, Piazza dei Cavalieri 7, 56126, Pisa (Italy)
  2. INFN, Sezione di Firenze, and Dipartimento di Fisica e Astronomia, Università di Firenze, Via G. Sansone 1, 50019 Sesto Fiorentino (Italy)
  3. Dipartimento di Fisica dell'Università di Pisa and INFN, Pisa (Italy)
Publication Date:
OSTI Identifier:
22676237
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Cosmology and Astroparticle Physics; Journal Volume: 2017; Journal Issue: 05; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ABUNDANCE; BOUND STATE; CORRECTIONS; DETECTION; FERMIONS; GEV RANGE; GLUINOS; INTERACTIONS; MASS; NONLUMINOUS MATTER; TEV RANGE

Citation Formats

Mitridate, Andrea, Redi, Michele, Smirnov, Juri, and Strumia, Alessandro, E-mail: andrea.mitridate@gmail.com, E-mail: michele.redi@fi.infn.it, E-mail: juri.smirnov@mpi-hd.mpg.de, E-mail: alessandro.strumia@cern.ch. Cosmological implications of Dark Matter bound states. United States: N. p., 2017. Web. doi:10.1088/1475-7516/2017/05/006.
Mitridate, Andrea, Redi, Michele, Smirnov, Juri, & Strumia, Alessandro, E-mail: andrea.mitridate@gmail.com, E-mail: michele.redi@fi.infn.it, E-mail: juri.smirnov@mpi-hd.mpg.de, E-mail: alessandro.strumia@cern.ch. Cosmological implications of Dark Matter bound states. United States. doi:10.1088/1475-7516/2017/05/006.
Mitridate, Andrea, Redi, Michele, Smirnov, Juri, and Strumia, Alessandro, E-mail: andrea.mitridate@gmail.com, E-mail: michele.redi@fi.infn.it, E-mail: juri.smirnov@mpi-hd.mpg.de, E-mail: alessandro.strumia@cern.ch. Mon . "Cosmological implications of Dark Matter bound states". United States. doi:10.1088/1475-7516/2017/05/006.
@article{osti_22676237,
title = {Cosmological implications of Dark Matter bound states},
author = {Mitridate, Andrea and Redi, Michele and Smirnov, Juri and Strumia, Alessandro, E-mail: andrea.mitridate@gmail.com, E-mail: michele.redi@fi.infn.it, E-mail: juri.smirnov@mpi-hd.mpg.de, E-mail: alessandro.strumia@cern.ch},
abstractNote = {We present generic formulæ for computing how Sommerfeld corrections together with bound-state formation affects the thermal abundance of Dark Matter with non-abelian gauge interactions. We consider DM as a fermion 3plet (wino) or 5plet under SU(2) {sub L} . In the latter case bound states raise to 11.5 TeV the DM mass required to reproduce the cosmological DM abundance and give indirect detection signals such as (for this mass) a dominant γ-line around 70 GeV. Furthermore, we consider DM co-annihilating with a colored particle, such as a squark or a gluino, finding that bound state effects are especially relevant in the latter case.},
doi = {10.1088/1475-7516/2017/05/006},
journal = {Journal of Cosmology and Astroparticle Physics},
number = 05,
volume = 2017,
place = {United States},
year = {Mon May 01 00:00:00 EDT 2017},
month = {Mon May 01 00:00:00 EDT 2017}
}
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