Natural gauge and gravitational coupling unification and the superpartner masses

  title={Natural gauge and gravitational coupling unification and the superpartner masses},
  author={David Emmanuel-Costa and Pavel Fileviez P{\'e}rez and Ricardo Gonz{\'a}lez Felipe},
  journal={Physics Letters B},

Figures and Tables from this paper

Low scale unification of gauge interactions

Particle and Astro-Particle Physics DivisionMax-Planck Institute for Nuclear Physics (MPIK)Saupfercheckweg 1, 69117 Heidelberg, Germany(Dated: May 8, 2014)We investigate the possibility to realize

Prospects for the direct detection of neutralino dark matter in orbifold scenarios

We analyse the phenomenology of orbifold scenarios from the heterotic superstring, and the resulting theoretical predictions for the direct detection of neutralino dark matter. In particular, we

A kind of prediction from string phenomenology: extra matter at low energy

We review the possibility that the Supersymmetric Standard Model arises from orbifold constructions of the E8×E8 Heterotic Superstring, and the phenomenological properties that such a model should



Grand Unified Theories Based on Local Supersymmetry

General features are discussed of grand unified theories with local supersymmetry broken at high energies by the super-Higgs effect. The low-energy effective Lagrangian is a globally supersymmetric

Supersymmetric unification without low energy supersymmetry and signatures for fine-tuning at the LHC

The cosmological constant problem is a failure of naturalness and suggests that a fine-tuning mechanism is at work, which may also address the hierarchy problem. An example — supported by Weinberg's

Limits on split supersymmetry from gluino cosmology

An upper limit on the masses of scalar superpartners in split supersymmetry is found by considering cosmological constraints on long-lived gluinos. Over most of parameter space, the most stringent

Supergravity as the messenger of supersymmetry breaking

A systematic study is made of theories in which supergravity is spontaneously broken in a ''hidden'' sector of superfields that interact with ordinary matter only through supergravity. General rules

Naturalnes in supersymmetric GUTS

Requiring the naturalness as defined by Veltman (radiative corrections should not disturb the gauge hierarchy in the Born term), supersymmetric grand unified theory based on the standard SU (5) is