NMSSM From Alternative Deflection in Generalized Deflected Anomaly Mediated SUSY Breaking

TL;DR

This paper introduces a novel method for generating messenger-matter interactions in deflected anomaly mediated SUSY breaking, enabling realistic NMSSM spectra and addressing electroweak symmetry breaking challenges.

Contribution

The paper presents a unique approach to generate messenger-matter interactions in deflected AMSB from Kahler potential terms, distinct from GMSB, improving NMSSM phenomenology.

Findings

Realistic soft SUSY breaking spectrum achieved in NMSSM.

Electroweak symmetry breaking conditions satisfied in large parameter space.

Gluino masses below 2.2 TeV could be tested at LHC.

Abstract

We propose a new approach to generate messenger-matter interactions in deflected anomaly mediated SUSY breaking mechanism from typical holomorphic messenger-matter mixing terms in the Kahler potential. This approach is a unique feature of AMSB and has no analog in GMSB-type scenarios. New coupling strengths from the scaling of the (already known) Yukawa couplings always appear in this approach. With messenger-matter interactions in deflected AMSB, we can generate a realistic soft SUSY breaking spectrum for next-to-minimal supersymmetric standard model(NMSSM). Successful electroweak symmetry breaking conditions, which is not easy to satisfy in NMSSM for ordinary AMSB-type scenario, can be satisfied in a large portion of parameter space in our scenarios. We study the relevant phenomenology for scenarios with (Bino-like) neutralino and axino LSP, respectively. In the case of axino LSP, the SUSY contributions to $\Delta a_\mu$ can possibly account for the muon $g-2$ discrepancy. The corresponding gluino masses, which are found to below 2.2 TeV, could be tested soon at LHC.