2024-03-28T08:57:50Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/1247882016-02-18T03:32:41Zcom_10261_61com_10261_4col_10261_314
On baryogenesis from dark matter annihilation
Bernal, Nicolás
Colucci, Stefano
Josse-Michaux, François-Xavier
Racker, J.
Ubaldi, Lorenzo
European Commission
dark matter theory
Baryon asymmetry
leptogenesis
We study in detail the conditions to generate the baryon asymmetry of the universe from the annihilation of dark matter. This scenario requires a low energy mechanism for thermal baryogenesis, hence we first discuss some of these mechanisms together with the specific constraints due to the connection with the dark matter sector. Then we show that, contrary to what stated in previous studies, it is possible to generate the cosmological asymmetry without adding a light sterile dark sector, both in models with violation and with conservation of B – L. In addition, one of the models we propose yields some connection to neutrino masses.
We would like to thank Nuria Rius for many interesting discussions and Miguel Nebot for clarifying issues on bounds for vector-like quarks. LU thanks the Center for Theoretical Underground Physics and Related Areas (CETUP* 2013) in South Dakota for its support and hospitality while part of this work was completed.
NB and LU are supported by the DFG TRR33 \The Dark Universe". The work of FXJM
is supported by Portuguese national funds through FCT - Fundaçao para a Ciência e Tecnologia, project PEst-OE/FIS/UI0777/2011, and by PTDC/FIS-NUC/0548/2012 and CERN/FP/123580/2011 projects. The work of JR has been supported by the Spanish MINECO Subprogramme Juan de la Cierva and it has also been partially supported by the Spanish MINECO grants FPA2011-29678-C02-01, and Consolider-Ingenio CUP (CSD2008-00037). In addition JR acknowledges partial support from the European Union FP7 ITN INVISIBLES (Marie Curie Actions, PITN- GA-2011- 289442).
Peer reviewed
2015-11-10T12:35:47Z
2015-11-10T12:35:47Z
2013-10-01
artículo
http://purl.org/coar/resource_type/c_6501
Journal of Cosmology and Astroparticle Physics 10 (10): 035 - 30 (2013)
1475-7516
http://hdl.handle.net/10261/124788
10.1088/1475-7516/2013/10/035
1475-7516
http://dx.doi.org/10.13039/501100000780
en
Preprint
http://dx.doi.org/10.1088/1475-7516/2013/10/035
Sí
open
Institute of Physics Publishing