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SISSA, Trieste, Italy 2014

Abstract

(ProQuest: ... denotes formulae and/or non-USASCII text omitted; see image)


Abstract

In order to accommodate the observed Higgs boson mass in the CMSSM, the stops must either be very heavy or the mixing in the stop sector must be very large. Lower stop masses, possibly more accessible at the LHC, still give the correct Higgs mass only if the trilinear stop mixing parameter |A ^sub t^| is in the multi-TeV range. Recently it has been shown that such large stop mixing leads to an unstable electroweak vacuum which spontaneously breaks charge or color. In this work we therefore go beyond the CMSSM and investigate the effects of including baryon number violating operators ...... on the stop and Higgs sectors. We find that for ...... light stop masses as low as 220 GeV are consistent with the observed Higgs mass as well as flavour constraints while allowing for a stable vacuum. The light stop in this scenario is often the lightest supersymmetric particle. We furthermore discuss the importance of the one-loop corrections involving R-parity violating couplings for a valid prediction of the light stop masses.

Details

Title
Resurrecting light stops after the 125 GeV Higgs in the baryon number violating CMSSM
Author
Chamoun, N; Dreiner, H K; Staub, F; Stefaniak, T
Pages
1-27
Publication year
2014
Publication date
Aug 2014
Publisher
Springer Nature B.V.
e-ISSN
10298479
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
1708016206
Copyright
SISSA, Trieste, Italy 2014