Models of natural supersymmetry seek to solve the little hierarchy problem by positing a
spectrum of light Higgsinos≲ 200–300 GeV and light top squarks≲ 600 GeV along with very …

The ATLAS and CMS collaborations have reported an excess of events in the γ γ, ZZ*→ 4 ℓ
and WW* search channels at an invariant mass m≃ 125 GeV, which could be the first …

A bstract While the SUSY flavor, CP and gravitino problems seem to favor a very heavy
spectrum of matter scalars, fine-tuning in the electroweak sector prefers low values of …

A bstract Particle physics models with Natural Supersymmetry are characterized by a
superpotential parameter μ∼ mh∼ 125 GeV, while third generation squarks have …

LHC-7 has narrowed down the mass range of the light Higgs boson. This result is consistent
with the supergravity unification framework, and the current Higgs boson mass window …

We consider supersymmetric (SUSY) models wherein the strong CP problem is solved by
the Peccei-Quinn (PQ) mechanism with a concommitant axion/axino supermultiplet. We …

We derive a factorization formula for the production of pairs of heavy coloured particles in
hadronic collisions near the production threshold that establishes factorization of soft and …

We consider light top squarks (stops) in the minimal supersymmetric Standard Model at the
Large Hadron Collider. Here, we assume that the lightest neutralino is the lightest …

Constraints on dark matter from the first CMS and ATLAS SUSY searches are investigated. It
is shown that within the minimal supergravity model, the early search for supersymmetry at …

We propose a new method to discover light top squarks (stops) in the co-annihilation region
at the Large Hadron Collider (LHC). The bino-like neutralino is the lightest supersymmetric …