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.
Highlights
Which can be advantageous in various aspects
We propose an alternative approach to including messenger–matter interactions in (d)AMSB from typical holomorphic terms in the Kahler potential
We find that phenomenological interesting next-to-minimal supersymmetric standard model (NMSSM) spectrum can be successfully generated from non-trivial holomorphic messenger–matter mixing terms in the Kahler potential
Summary
There are two possible ways to deflect the AMSB trajectory with the presence of messengers, by pseudo-moduli field or holomorphic terms (for messengers) in the Kahler potential. The non-vanishing mass eigenstates for scalar matrix are given by Such expressions are analog to that of the GMSB with T, S0 the messenger-like fields. The same holds for terms containing Ka, Ka. Besides, terms involving the triplet components of H, Hare integrated out by assuming proper doublet-triplet splitting mechanism to generate heavy triplet Higgs masses. The messenger threshold MR can field X with bMeRfu=rth√erXp†rXom. TohteedstuopethrfieeoldthSer chiral spurion will act as the singlet S appearing in ordinary NMSSM superpotential and K2, K2 as the third generation superfields. The scalar components of the three combinations Ka(a = 1, 2, 3) correspond to the massless eigenvalues of the 5 × 5 sfermion mass matrix for (P∗, P , P1m, P2m, P3m) that can be identified to be the three generation squark/sleptons in MSSM. The dAMSB soft scalar masses can be divided into several parts, namely the gauge-anomaly interference part, the pure gauge mediation part as well as the ordinary anomaly mediation part
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