Zobrazeno 1 - 10
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pro vyhledávání: '"Dey, Paramita"'
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Akademický článek
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Publikováno v:
JCAP05(2012)042
A sufficiently long lived warm dark matter could be a source of X-rays observed by satellite based X-ray telescopes. We consider axinos and gravitinos with masses between 1 keV and 100 keV in supersymmetric models with small R-parity violation. We sh
Externí odkaz:
http://arxiv.org/abs/1108.1368
Publikováno v:
JHEP 1005:087,2010
In an extension of the minimal supersymmetric standard model (popularly known as the $\mu\nu$SSM), three right handed neutrino superfields are introduced to solve the $\mu$-problem and to accommodate the non-vanishing neutrino masses and mixing. Neut
Externí odkaz:
http://arxiv.org/abs/1002.2705
Publikováno v:
Phys.Rev.D81:036011,2010
We consider the possibility of Higgs mechanism in the bulk in a generalised Randall-Sundrum model, where a nonvanishing cosmological constant is induced on the visible brane. This scenario has the advantage of accommodating positive tension of the vi
Externí odkaz:
http://arxiv.org/abs/0911.3761
Publikováno v:
Phys.Rev.D80:075013,2009
We investigate the possibility of unitarity violation in the sequential neutrino mixing matrix in a scenario with extra compact spacelike dimensions. Gauge singlet neutrinos are assumed to propagate in one extra dimension, giving rise to an infinite
Externí odkaz:
http://arxiv.org/abs/0907.0099
Publikováno v:
Phys.Rev.D80:055029,2009
The Randall-Sundrum model of warped geometry in a five-dimensional scenario, aimed at explaining the hierarchy between the Planck and electroweak scales, is intrinsically unstable in its minimal form due to negative tension of the visible brane. A pr
Externí odkaz:
http://arxiv.org/abs/0904.1970
Publikováno v:
Phys.Lett.B674:188-191,2009
We consider the Littlest Higgs Model with T-parity (LHT), in the parameter region where a heavy neutrino is the lightest T-odd particle (LTP). Having emphasized that this corresponds to a sizable region in the parameter space of the theory, we show t
Externí odkaz:
http://arxiv.org/abs/0809.3893
Publikováno v:
JHEP 0812:100,2008
We attempt to reconcile large trilinear R-parity violating interactions in a supersymmetric (SUSY) theory with the observed pattern of neutrino masses and mixing. We show that, with a restricted number of such interaction terms with the $\lambda'$-ty
Externí odkaz:
http://arxiv.org/abs/0808.1523
Publikováno v:
J.Phys.G36:025002,2009
We consider an extension of the scalar sector of the Standard Model with a single complex Higgs triplet $X$. Such extensions are the most economic, model-independent way of generating neutrino masses through triplet interactions. We show that a term
Externí odkaz:
http://arxiv.org/abs/0802.2510