Research & Publications

Exploring the frontiers of theoretical physics and interdisciplinary research

Research Areas

Particle Physics

Investigating fundamental particles and their interactions through theoretical models and computational simulations.

Cosmology

Studying the origin, evolution, and large-scale structure of the universe using advanced mathematical frameworks.

Machine Learning in Physics

Applying AI and machine learning techniques to solve complex problems in theoretical physics and data analysis.

Interdisciplinary Research

I strongly believe that interdisciplinary research holds key to the fundamental laws of nature.

Selected Publications

Enhancement of the Higgs decay into a Z' pair in models with U(1)X gauge symmetry

Phys. Lett. B, vol. 855, p. 138843, 2024

ShivaSankar K.A, A. Das, and K. Yagyu

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Probing chiral and flavored Z' from cosmic bursts through neutrino interactions

Eur. Phys. J. C, vol. 84, no. 11, p. 1224, 2024

ShivaSankar K.A, A. Das, G. Lambiase, T. Nomura, and Y. Orikasa

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Implications of first LZ and XENONnT results: A comparative study of neutrino properties and light mediators

Phys. Lett. B, vol. 839, p. 137742, 2023

ShivaSankar K.A, A. Majumdar, D. K. Papoulias, H. Prajapati, and R. Srivastava

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W boson mass in singlet-triplet scotogenic dark matter model

International Journal of Modern Physics A, 2023

A. Batra, ShivaSankar K.A, S. Mandal, and R. Srivastava

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CDF-II W-boson mass anomaly in the canonical Scotogenic neutrino-dark matter model

Modern Physics Letters A, vol. 38, no. 18n19, p. 2350090, 2023

A. Batra, ShivaSankar K.A, S. Mandal, H. Prajapati, and R. Srivastava

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Neutrinos bridging frontiers: From colliders to cosmos

Master thesis, Hokkaido University, Sept 2024

ShivaSankar K.A

Effect of U(1)B−L breaking in leptogenesis

M.S. thesis, IISER Bhopal, April 2022

ShivaSankar K.A

Fellowships

EXEX Research Fellowship (2024 - Present)

Research Fellowship funded by the JST EXEX program for pursuing my PhD in Japan.

MEXT Scholarship (2022 - 2024)

Scholarship funded by the MEXT program for pursuing my Master's in Japan.

Teaching Experience

Quantum Mechanics I & II

Teaching Assistant | Hokkaido University | Oct 2022 - Present

  • Schrödinger equation
  • Potentials and wave functions
  • Hydrogen atom
  • Angular momentum

Statistical Mechanics I & II

Teaching Assistant | Hokkaido University | April 2024 - Present

  • Thermal physics and gas laws
  • Ensembles and entropy
  • Maxwell-Boltzmann statistics
  • Dirac Fermi statistics

Complex Analysis

Teaching Assistant | Hokkaido University | Oct 2022 - Present

  • Analytic functions
  • Limits and integrals

Elementary English

Instructor | Sapporo, Japan | Part-time

  • English language teaching for Japanese elementary school students