Professor · High Energy Physics

Santosh Kumar Rai

Harish-Chandra Research Institute, Prayagraj

Theoretical physicist specializing in Beyond Standard Model phenomenology, exploring the frontiers of BSM theories at the LHC and proposed future colliders.

Prof. Santosh Kumar Rai
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About Me

I am Santosh Kumar Rai, a Professor at the Harish-Chandra Research Institute, specializing in Particle Physics Phenomenology. My research primarily focuses on Beyond Standard Model (BSM) physics and its implications for collider studies.

I have explored various supersymmetric theories, including the Minimal Supersymmetric Standard Model (MSSM) and its extensions like the NMSSM and left-right supersymmetry, all of which present intriguing signatures at experiments.

My work also delves into extended gauge symmetries beyond the Standard Model, with implications for both neutrino physics and collider studies. My primary focus is on analyzing BSM physics at current and proposed future colliders, including the LHC, ILC, CLIC, LHeC, and FCC.

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Research Interests

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Beyond Standard Model Physics

Investigating theories that extend the Standard Model, exploring new particles, forces, and symmetries that could explain unresolved mysteries in particle physics.

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Higgs Physics

Studying Higgs boson couplings, exotic Higgs signatures, and extending Higgs sector beyond minimal scalar-sector models to investigate new physics signals.

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Neutrino Phenomenology

Research on neutrino mass models, lepton number violation, and neutrinophilic interactions within the U(1) framework and beyond.

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Extradimension & Supersymmetric Models

Exploring extra-dimensional models and supersymmetric theories including MSSM, NMSSM, and left-right supersymmetry and their phenomenological signatures.

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Selected Publications

2025
Multicomponent dark matter with collider implications
Journal of High Energy Physics
2025
Revisiting the inert scalar dark matter with vector-like quarks
Journal of High Energy Physics
2025
Discovering an invisible Z′ at the muon collider
Physics Letters B
2024
Heavy neutrino as dark matter in a neutrinophilic U(1) model
European Physical Journal C
2024
Search for a leptophobic doubly charged Higgs in same-sign four-lepton and two lepton plus two jets in a left-right symmetric model
European Physical Journal C
2023
Emergent new symmetry from the Higgs shadow
Physical Review D
2021
Search for a light Z′ at LHC in a neutrinophilic U(1) model
Physical Review D
2021
Nonstandard signatures of vectorlike quarks in a leptophobic 221 model
Physical Review D
2019
Lepton-specific universal seesaw model with left-right symmetry
Physical Review D
2018
Polarized window for left-right symmetry and a right-handed neutrino at the Large Hadron-Electron Collider
Physical Review D (Rapid Communications)
2016
Search for spin-3/2 quarks at the Large Hadron Collider
Physical Review D
2013
Unity of elementary particles and forces for the third family
Physics Letters B
2008
Signatures for right-handed neutrinos at the Large Hadron Collider
Physical Review Letters
2003
Single photon signals for warped quantum gravity at a linear e+e− collider
Journal of High Energy Physics
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Teaching

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Contact

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Institution Harish-Chandra Research Institute
Chhatnag Road, Jhunsi
Prayagraj, UP 211019, India
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Office Room# 203
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Phone 4357 (extn)
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