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pro vyhledávání: '"gravitino: mass"'
We study a No-Scale supergravity inflation model which has a non-minimal deformation of the K\"ahler potential and a Wess-Zumino superpotential extended by the inclusion of a Polonyi mass term. The non-minimal structure of the K\"ahler potential is r
Externí odkaz:
http://arxiv.org/abs/2309.17132
Autor:
Cribiori, Niccolò
In this contribution, we review a general argument showing that de Sitter critical points of extended supergravity are in tension with the magnetic weak gravity conjecture if the gravitino mass is vanishing. Motivated by this assumption, we review th
Externí odkaz:
http://arxiv.org/abs/2203.15449
Akademický článek
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Akademický článek
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Autor:
Kitazawa, Noriaki
Supergravity models with spontaneously broken supersymmetry have been widely investigated over the years, together with some notable non-linear limits. Although in these models the gravitino becomes naturally massive absorbing the degrees of freedom
Externí odkaz:
http://arxiv.org/abs/1802.03088
Autor:
Ibe, Masahiro, Yanagida, Tsutomu T.
We revisit low-scale gauge mediation models in light of recent observations of CMB Lensing and Cosmic Shear which put a severe upper limit on the gravitino mass, $m_{3/2} \lesssim 4.7$eV. With such a stringent constraint, many models of low-scale gau
Externí odkaz:
http://arxiv.org/abs/1608.01610
We consider the minimal three-form ${\cal N}=1$ supergravity coupled to nilpotent three-form chiral superfields. The supersymmetry breaking is sourced by the three-forms of the chiral multiplets, while the value of the gravitino mass is controlled by
Externí odkaz:
http://arxiv.org/abs/1605.07631
Publikováno v:
JCAP06(2016)004
Light gravitinos of mass $\lesssim \mathcal{O} (10)$ eV are of particular interest in cosmology, offering various baryogenesis scenarios without suffering from the cosmological gravitino problem. The gravitino may contribute considerably to the total
Externí odkaz:
http://arxiv.org/abs/1601.07386
Autor:
Oyama, Yoshihiko, Kawasaki, Masahiro
We investigate how well we can constrain the mass of light gravitino m_3/2 by using future observations of 21 cm line fluctuations such as Square Kilometre Array (SKA) and Omniscope. Models with light gravitino with the mass m_3/2 < O(10) eV are quit
Externí odkaz:
http://arxiv.org/abs/1605.09191
We explore the discovery potential of light gravitino mass m_{3/2} by combining future cosmology surveys and collider experiments. The former probe the imprint of light gravitinos in the cosmic matter density field, whereas the latter search signatur
Externí odkaz:
http://arxiv.org/abs/1311.4323