Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Adulpravitchai, Adisorn"'
Publikováno v:
JHEP12(2015)023
Sterile Neutrinos with a mass in the keV range form a good candidate for dark matter. They are naturally produced from neutrino oscillations via their mixing with the active neutrinos. However the production via non-resonant neutrino oscillations has
Externí odkaz:
http://arxiv.org/abs/1507.05694
Sterile neutrinos with a mass of a few keV can serve as cosmological warm dark matter. We study the production of keV sterile neutrinos in the early universe from the decay of a frozen-in scalar. Previous studies focused on heavy frozen-in scalars wi
Externí odkaz:
http://arxiv.org/abs/1409.4330
Autor:
Hirsch, M., Meloni, D., Morisi, S., Pastor, S., Peinado, E., Valle, J. W. F., Adulpravitchai, Adisorn, Sierra, D. Aristizabal, Bazzocchi, F., Bhattacharyya, Gautam, Blankenburg, G., Boucenna, M. S., Varzielas, I. de Medeiros, Diaz, Marco Aurelio, Ding, Gui-Jun, Esteves, J. N., Farzan, Yasaman, Saenz, Sebastian Garcia, Grimus, W., Hagedorn, Claudia, Jones-Perez, J., Joshipura, Anjan S., Kadosh, Avihay, Kadota, Kenji, Kang, Sin Kyu, Kersten, Joern, Koch, Benjamin, Krauss, Martin B., Leser, Philipp, Ludl, Patrick Otto, Maurer, Vinzenz, Merlo, Luca, Panotopoulos, Grigoris, Papa, A., Pas, Heinrich, Patel, Ketan M., Rodejohann, Werner, Salazar, U. J. Saldana, Serodio, H., Shimizu, Yusuke, Spinrath, Martin, Stamou, Emmanuel, Sugiyama, Hiroaki, Taoso, M., Toma, Takashi, Velasco-Sevilla, Liliana
The main goals of the first "Workshop on FLAvor SYmmetries and consequences in accelerators and cosmology" (FLASY) was to summarize the theoretical status of flavor symmetries, bringing together young researchers in the field to stimulate discussions
Externí odkaz:
http://arxiv.org/abs/1201.5525
Publikováno v:
JHEP 1109:127,2011
A seesaw mechanism in an extra-dimension, known as the split seesaw mechanism, provides a natural way to realize a splitting mass spectrum of right-handed neutrinos. It leads to one keV sterile neutrino as a dark matter candidate and two heavy right-
Externí odkaz:
http://arxiv.org/abs/1107.3829
Publikováno v:
Phys.Lett.B700:207-216,2011
We consider the minimal model in which dark matter is stabilized by a non-Abelian discrete symmetry. The symmetry group is taken to be D_3, which is the smallest non-Abelian finite group. The minimal model contains (nontrivial) singlet and doublet sc
Externí odkaz:
http://arxiv.org/abs/1103.3053
Publikováno v:
JHEP 1102:086,2011
We give texture analyses of cascade hierarchical mass matrices in supersymmetric SO(10) grand unified theory. We embed cascade mass textures of the standard model fermion with right-handed neutrinos into the theory, which gives relations among the ma
Externí odkaz:
http://arxiv.org/abs/1012.1760
Publikováno v:
Phys.Rev.D82:073013,2010
In some dark matter models, the coupling of the dark matter particle to the standard model Higgs determines the dark matter relic density while it is also consistent with dark matter direct detection experiments. On the other hand, the seesaw for gen
Externí odkaz:
http://arxiv.org/abs/1007.1115
Publikováno v:
JHEP 1101:106,2011
Orbifold grand unified theories (GUTs) solve several problems in GUT model building. Therefore, it is intriguing to investigate similar constructions in the flavor context. In this paper, we propose that a flavor symmetry might emerge due to orbifold
Externí odkaz:
http://arxiv.org/abs/1001.3172
Publikováno v:
Phys.Lett.B680:476-479,2009
We discuss a one loop model for neutrino masses which leads to a seesaw-like formula with the difference that the charged lepton masses replace the unknown Dirac mass matrix present in the usual seesaw case. This is a considerable reduction of parame
Externí odkaz:
http://arxiv.org/abs/0908.0470
Publikováno v:
Phys.Rev.D80:055031,2009
We discuss the tension between discrete flavour symmetries and extended scalar sectors arising from lepton flavour violation experiments. The key point is that extended scalar sectors will generically lead to flavour changing neutral currents, which
Externí odkaz:
http://arxiv.org/abs/0907.2147