SO(10) unified models and soft leptogenesis
dc.contributor.author | Chun, Eung-Jin | en_US |
dc.contributor.author | Velasco-Sevilla, Liliana | en_US |
dc.date.accessioned | 2008-04-02T14:47:29Z | |
dc.date.available | 2008-04-02T14:47:29Z | |
dc.date.issued | 2007-08-01 | en_US |
dc.identifier.citation | Chun, Eung-Jin; Velasco-Sevilla, Liliana (2007). " SO(10) unified models and soft leptogenesis." Journal of High Energy Physics. 08(075). <http://hdl.handle.net/2027.42/58161> | en_US |
dc.identifier.issn | 1126-6708 | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/58161 | |
dc.description.abstract | Motivated by the fact that, in some realistic models combining SO(10) GUTs and flavour symmetries, it is not possible to achieve the required baryon asymmetry through the CP asymmetry generated in the decay of right-handed neutrinos, we take a fresh look on how deep this connection is in SO(10). The common characteristics of these models are that they use the see-saw with right-handed neutrinos, predict a normal hierarchy of masses for the neutrinos observed in oscillating experiments and in the basis where the right-handed Majorana mass is diagonal, the charged lepton mixings are tiny. In addition these models link the up-quark Yukawa matrix to the neutrino Yukawa matrix Yν with the special feature of Yν11 0. Using this condition, we find that the required baryon asymmetry of the Universe can be explained by the soft leptogenesis using the soft B parameter of the second lightest right-handed neutrino whose mass turns out to be around 108 GeV. It is pointed out that a natural way to do so is to use no-scale supergravity where the value of B ∼ 1 GeV is set through gauge-loop corrections. | en_US |
dc.format.extent | 3118 bytes | |
dc.format.extent | 363520 bytes | |
dc.format.mimetype | text/plain | |
dc.format.mimetype | application/pdf | |
dc.publisher | IOP Publishing Ltd | en_US |
dc.title | SO(10) unified models and soft leptogenesis | en_US |
dc.type | Article | en_US |
dc.subject.hlbsecondlevel | Physics | en_US |
dc.subject.hlbtoplevel | Science | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | Korea Institute for Advanced Study, 207-43 Cheongryangri-dong, Dongdaemun-gu, Seoul 130-012, Korea; Michigan Center for Theoretical Physics, Department of Physics, University of Michigan, Ann Arbor MI 48109, U.S.A. | en_US |
dc.contributor.affiliationother | W.I.F. Theoretical Physics Institute, University of Minnesota, 116 Church St SE, Minneapolis, MN 55454, U.S.A. | en_US |
dc.contributor.affiliationumcampus | Ann Arbor | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/58161/2/jhep082007075.pdf | |
dc.identifier.doi | http://dx.doi.org/10.1088/1126-6708/2007/08/075 | en_US |
dc.identifier.source | Journal of High Energy Physics. | en_US |
dc.owningcollname | Interdisciplinary and Peer-Reviewed |
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