%0 Generic %1 ambrosone2021absorption %A Ambrosone, Antonio %A Calabrese, Roberta %A Fiorillo, Damiano F. G. %A Miele, Gennaro %A Morisi, Stefano %D 2021 %K library %T Absorption from Primordial Black Holes as source of baryon asymmetry %U http://arxiv.org/abs/2106.11980 %X We propose a new mechanism for baryogenesis, in which baryon asymmetry is generated by absorption of a new particle $X$ carrying baryon number onto Primordial Black Holes (PBHs). Due to CP violation of $X$ and $X$ scattering with the plasma surrounding PBHs, the two conjugate particles are differently absorbed by PBHs, leading to the production of an asymmetry in the $X$ sector. The production is halted by PBH evaporation, after which the asymmetry is transferred into the baryonic sector via $X$ decay. We show that this mechanism can produce the correct amount of asymmetry without violating the known constraints on PBHs concentration. Furthermore, we provide a systematic study of the parameter space, identifying the regions leading to the production of the correct baryon asymmetry.

@misc{ambrosone2021absorption, abstract = {We propose a new mechanism for baryogenesis, in which baryon asymmetry is generated by absorption of a new particle $X$ carrying baryon number onto Primordial Black Holes (PBHs). Due to CP violation of $X$ and $\overline{X}$ scattering with the plasma surrounding PBHs, the two conjugate particles are differently absorbed by PBHs, leading to the production of an asymmetry in the $X$ sector. The production is halted by PBH evaporation, after which the asymmetry is transferred into the baryonic sector via $X$ decay. We show that this mechanism can produce the correct amount of asymmetry without violating the known constraints on PBHs concentration. Furthermore, we provide a systematic study of the parameter space, identifying the regions leading to the production of the correct baryon asymmetry.}, added-at = {2021-06-24T08:21:22.000+0200}, author = {Ambrosone, Antonio and Calabrese, Roberta and Fiorillo, Damiano F. G. and Miele, Gennaro and Morisi, Stefano}, biburl = {https://www.bibsonomy.org/bibtex/287afe636f8505b893d68b38f1e8fa06b/gpkulkarni}, description = {Absorption from Primordial Black Holes as source of baryon asymmetry}, interhash = {e06bf3589a8739cb6e3673cac183dc67}, intrahash = {87afe636f8505b893d68b38f1e8fa06b}, keywords = {library}, note = {cite arxiv:2106.11980Comment: 7 pages, 3 figures}, timestamp = {2021-06-24T08:21:22.000+0200}, title = {Absorption from Primordial Black Holes as source of baryon asymmetry}, url = {http://arxiv.org/abs/2106.11980}, year = 2021 }