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

被引:2
|
作者
Gupta, Surabhi [1 ]
Gupta, Sudhir Kumar [1 ]
机构
[1] Aligarh Muslim Univ, Dept Phys, Aligarh 202002, UP, India
关键词
ELECTROWEAK SYMMETRY-BREAKING; MSSM; PROGRAM; PHYSICS; MODELS; OBSERVABLES; MICROMEGAS; ENTROPY; ANATOMY; DECAYS;
D O I
10.1016/j.nuclphysb.2022.115942
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
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 re-gion of flavour-violating CMSSM parameter space (m(0), m(1/2), A(0), tan beta, sgn(mu), delta(ij)(ct)), where delta(ij)(ct)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(ij)(ct))as (4.30 TeV, 2.32 TeV, -4.96 TeV, 22.8, 0.037) and (4.16 TeV, 3.89 TeV, -4.10 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. (C) 2022 The Authors. Published by Elsevier B.V.
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页数:15
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