Now showing items 1-10 of 110
Renormalization group invariants in the MSSM and its extensions
(IOP Publishing, 2005-11)
We derive one-loop renormalization group (RG) invariant observables and analyze their phenomenological implications in the MSSM and its μ problem solving extensions, U(1)′ model and NMSSM. We show that there exist several ...
Nonlinearly realized local scale invariance: Gravity and matter
That the scalar field theories with no dimensional couplings possess local scale invariance (LSI) via the curvature gauging is utilized to show that the Goldstone boson, released by the spontaneous LSI breakdown, is swallowed ...
CMS physics technical design report, volume II: Physics performance
(IOP Publishing, 2007-06)
CMS is a general purpose experiment, designed to study the physics of pp collisions at 14 TeV at the Large Hadron Collider (LHC). It currently involves more than 2000 physicists from more than 150 institutes and 37 countries. ...
Non-gravitating scalars and spacetime compactification
We discuss role of partially gravitating scalar fields, scalar fields whose energy-momentum tensors vanish for a subset of dimensions, in dynamical compactification of a given set of dimensions. We show that the resulting ...
CERN LEP indications for two light Higgs bosons and the U(1)′ model
(American Physical Society, 2006-01)
Reanalyses of LEP data have shown preference to two light CP-even Higgs bosons. We discuss implications of such a Higgs boson spectrum for the minimal supersymmetric model extended by a standard model singlet chiral ...
Relativistic MOND from modified energetics
We begin to investigate the question of what modifications in the energy-momentum tensor can yield the correct MOND regime. As a starting study, we refrain from insisting on an action principle and focus exclusively on the ...
Scalars, vectors and tensors from metric-affine gravity
The metric-affine gravity provides a useful framework for analyzing gravitational dynamics since it treats metric tensor and affine connection as fundamentally independent variables. In this work, we show that, a metric-affine ...
Minimal U(1)′ extension of the minimal supersymmetric standard model
(American Physical Society, 2005-07)
Motivated by the apparent need for extending the minimal supersymmetric standard model (MSSM) and perhaps mitigating naturalness problems associated with the μ parameter and fine-tuning of the soft masses, we augment the ...
Inflation with non-minimal coupling: Metric vs. Palatini formulations
We analyze non-minimally coupled scalar field theories in metric (second-order) and Palatini (first-order) formalisms in a comparative fashion. After contrasting them in a general setup, we specialize to inflation and find ...
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.