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12–16 Dec 2022
IISER Mohali
Asia/Kolkata timezone

Neutrino masses and mixing angles in the context of Bilinear R-parity violating supersymmetry

13 Dec 2022, 15:15
15m
LH4 (IISER Mohali)

LH4

IISER Mohali

Lecture Hall Complex, IISER Mohali, Sector 81, Knowledge city, SAS Nagar, Punjab, India

Speaker

Ms Arpita Mondal (Department of Physics, Indian Institute of Technology Patna, Patna, Bihar-801106, India)

Description

In this work, we have explored a highly motivated beyond the Standard Model scenario, namely, R-parity violating supersymmetry, in the context of light neutrino mass and mixing. The R-parity is broken by only the lepton number violating the bilinear term. We try to fit two non-zero neutrino mass square differences and three mixing angle values obtained from the global chi-square analysis of neutrino oscillation data. We have also taken into account the updated data of Higgs mass, low energy flavor violating constraints like rare b-hadron decays, and Higgs coupling strengths with various Standard Model particles from LHC RUN-II data. We have used Markov Chain Monte Carlo(MCMC) to scan the parameter space of our model. After a detailed scan of the parameter space, we found that this model can explain data for the Normal Hierarchy scenario. We also represent $1\sigma$ and $2\sigma$ contour plots of different correlated parameters like Bilinear R-parity violating coupling parameters($\varepsilon_i$), corresponding soft coupling parameters(B$_i$), $\mu$, $\tan\beta$ etc.

Session Beyond the Standard Model

Primary authors

Dr Arghya Choudhury (Department of Physics, Indian Institute of Technology Patna, Patna, Bihar-801106, India) Ms Arpita Mondal (Department of Physics, Indian Institute of Technology Patna, Patna, Bihar-801106, India) Sourav Mitra (Surendranath College, 24/2 M. G. Road, Kolkata, West Bengal-700009, India) Subhadeep Mondal (School of Engineering and Applied Sciences, Department of Physics, Bennett University, Greater Noida, Uttar Pradesh-201310, India)

Presentation materials