Now showing items 111-115 of 115
Hidden spin-3/2 field in the standard model
Here we show that a massive spin-3/2 field can hide in the SM spectrum in a way revealing itself only virtually. We study collider signatures and loop effects of this field, and determine its role in Higgs inflation and ...
Vacuum energy as the origin of the gravitational constant
We develop a geometro-dynamical approach to the cosmological constant problem (CCP) by invoking a geometry induced by the energy-momentum tensor of vacuum, matter and radiation. The construction, which utilizes the dual ...
Induced affine inflation
(American Physical Society, 2018-02)
Induced gravity, metrical gravity in which gravitational constant arises from vacuum expectation value of a heavy scalar, is known to suffer from Jordan frame vs Einstein frame ambiguity, especially in inflationary dynamics. ...
Dirac neutrino masses from generalized supersymmetry breaking
(American Physical Society, 2008-03)
We demonstrate that Dirac neutrino masses in the experimentally preferred range are generated within supersymmetric gauge extensions of the standard model with a generalized supersymmetry breaking sector. If the superpotential ...
Signatures of doubly-charged Higgsinos at colliders
(American Institute of Physics Publising, 2008)
Several supersymmetric models with extended gauge structures predict light doubly-charged Higgsinos. Their distinctive signature at the large hadron collider is highlighted by studying its production and decay characteristics.