3-8 July 2016
The University of Melbourne
Australia/Melbourne timezone

Probing Non-holomorphic MSSM via precision constraints, dark matter and LHC data

Not scheduled
20m
Alice Hoy Room 225 ()

Alice Hoy Room 225

Talk SUSY Models SUSY Models

Speaker

Prof. Utpal Chattopadhyay (Indian Association for the Cultivation of Science)

Description

In this analysis we explore the phenomenological constraints of models
with non-holomorphic soft SUSY breaking terms in a beyond the MSSM scenario
having identical particle content. The model referred as NHSSM shows various
promising features like the possibility of a strong reduction in electroweak fin
e-tuning even for a scenario of a heavy higgsino type of LSP, a fact that is unavailable in pMSSM models. The other important aspect is satisfying the muon $g-2$ data even for a small
$\tan\beta$ via a small value of coupling $A_\mu'$ associated with the tri-linear non-holomorphic soft term. Thus, a large SUSY contribution to muon $g-2$ is possible
even for a significantly large smuon mass $m_{\tilde {\mu_1}}$. The Higgs mass radiative corrections are contributed by both the holomorphic and non-holomorphic trilinear soft parameters $A_t$ and $A_t'$, thus diluting the requirement to have a larger $A_t$
to satisfy the Higgs mass data. The model also provides with valid parameter space
satisfying the constraint of $B \rightarrow X_s +\gamma$ for large values of
$\tan\beta$, a scenario unfavourable in pMSSM.

Primary author

Prof. Utpal Chattopadhyay (Indian Association for the Cultivation of Science)

Co-author

Mr Abhishek Dey (Maulana Azad College, Kolkata)

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