Investigating non-minimal flavour-violating CMSSM in the light of Higgs-Boson mass using information theory

Abstract

Flavour-violating interactions of the stop-quarks are expected to provide an additional few GeV contributions to the Higgs-Boson mass, particularly when mix with scharm-quarks, thereby allowing reduced supersymmetry (SUSY) breaking scale compared to flavour-conserving constrained minimal supersymmetric Standard Model (CMSSM). Inspired by this, we analyse the interactions mentioned above in the context of CMSSM using the information entropy of the Higgs-Boson for a wider region of flavour-violating CMSSM parameter space $(m_0,m_{1/2},A_0,$ $\tan \beta ,sgn(\mu ),{\delta }_{ct}^{ij})$, where ${\delta }_{ct}^{ij}$ represents the flavour-violating coupling of the top-quark with the charm-quark and $i,j$ defining left and right chiralities of squarks. Our information-theoretic analysis of the model mentioned above reveals the most favourable values of $(m_0,m_{1/2},A_0,\tan \beta ,{\delta }_{ct}^{ij})$ as $(4.30\mathrm{TeV},2.32\mathrm{TeV},-4.96\mathrm{TeV},$ $22.8,0.037)$ and $(4.16\mathrm{TeV},$ $3.89\mathrm{TeV},-4.10\mathrm{TeV},19.4,0.039)$ for $(i,j)=(L,R)$ and $(R,L)$, respectively, corresponding to the maximum entropy which suggest the SUSY breaking scale to be about $5$ TeV, thereby allowing considerable low values of sparticles masses than the flavour-conserving CMSSM.

arXiv comment17 pages, 8 figures

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