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Implications of Higgs boson to diphoton decay rate in the bilinear R-parity violating supersymmetric model

Hundi, Raghavendra Srikanth (2013) Implications of Higgs boson to diphoton decay rate in the bilinear R-parity violating supersymmetric model. In: Physical Review D, 87 (11). 115005_1-115005_11.

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Official URL: http://dx.doi.org/10.1103/PhysRevD.87.115005

Abstract

The Large Hadron Collider has recently discovered a Higgs-like particle having a mass around 125 GeVand also indicated that there is an enhancement in the Higgs to diphoton decay rate as compared to that in the standard model. We have studied implications of these discoveries in the bilinear R-parity violating supersymmetric model, whose main motivation is to explain the nonzero masses for neutrinos. The R-parity violating parameters in this model are epsilon and b(epsilon), and these parameters determine the scale of neutrino masses. If the enhancement in the Higgs to diphoton decay rate is true, then we have found epsilon greater than or similar to 0.01 GeV and b epsilon similar to 1 GeV2 in order to be compatible with the neutrino oscillation data. Also, in the above mentioned analysis, we can determine the soft masses of sleptons (m(L)) and CP-odd Higgs boson mass (mA). We have estimated that m(L) greater than or similar to 300 GeV and m(A) greater than or similar to 700 GeV. We have also commented on the allowed values of epsilon and b(epsilon), in case there is no enhancement in the Higgs to diphoton decay rate. Finally, we present a model to explain the smallness of epsilon and b(epsilon).

Item Type: Journal Article
Additional Information: Copyright of this article belongs to American Physical Society.
Department/Centre: Division of Physical & Mathematical Sciences > Centre for High Energy Physics
Depositing User: Francis Jayakanth
Date Deposited: 06 Aug 2013 11:24
Last Modified: 06 Aug 2013 11:24
URI: http://eprints.iisc.ac.in/id/eprint/46907

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