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Sabyasachi Chakraborty
(Ph.D. IACS, Kolkata, 2016)
Assistant Professor, Department of Physics
Research Interest
Theoretical Particle Physics.
Office
107, Block C, Old Sac building,
Department of Physics,
IIT Kanpur,
Kanpur 208016
Research Area
High Energy Physics Theory
Specialization
1. Construction and application of low-energy effective field theories,
2. Axions, dark photons at the intensity and cosmic frontier,
3. Electroweak phase transition,
4. Soft collinear effective theory for gravity,
5. Supersymmetric Models and Collider Phenomenology.
Education
2010-2015: PhD in Theoretical Particle Physics, IACS, Kolkata, India, Thesis: Some aspects of the phenomenology of supersymmetric theories and the Large Hadron Collider.
2008-2010: MSc, Indian Institute of Technology, Madras.
2005-2008: BSc, Presidency College (University of Calcutta).
Teaching Area
Particle Physics (PHY680)
Cosmology (PHY690I)
Classical Dynamics (PHY112)
Previous Work Experience
2021 -- 2022: Postdoctoral Fellow, International School for Advanced Studies (SISSA), Trieste, Italy.
2018 -- 2021: Postdoctoral Fellow, Florida State University, Tallahassee, Florida, USA.
2015 -- 2018: Visiting Fellow, Tata Institute of Fundamental Research, Mumbai, India.
Professional Affiliations
2022--onwards: Assistant Professor, Department of Physics, IIT Kanpur.
Selected Publications
A comprehensive study of ALPs from B-decays (arXiv: 2412.09678),
Authors: Deepanshu Bisht, Sabyasachi Chakraborty, and Atanu Samanta.
Photoproduction of heavy QCD axions in supernovae (arXiv: 2403.12169, Phys. Rev. D 110 (2024) 6, 063032),
Authors: Sabyasachi Chakraborty, Aritra Gupta, and Miguel Vanvlasselaer.
Anomaly induced cooling of Neutron Stars: A Standard Model Contribution (arXiv:2306.15872, JCAP 10 (2023) 030)
Authors: Sabyasachi Chakraborty, Aritra Gupta, and Miguel Vanvlasselaer.
Ultra-relativistic bubbles from the simplest Higgs portal and their cosmological consequences (arXiv: 2207.02230, JHEP 10 (2022) 017),
Authors: Aleksandr Azatov, Giulio Barni, Sabyasachi Chakraborty, Miguel Vanvlasselaer, Wen Yin.
Topics in Gravity SCET: Diff invariant Wilson lines and RPI (arXiv: 1910.10738, Phys. Rev. D 101 (2020) 6, 066019),
Authors: Sabyasachi Chakraborty, Takemichi Okui, and Arash Yunesi.
Charting generalized supersoft supersymmetry (arXiv: 1802.03411, JHEP 05 (2018) 176),
Authors: Sabyasachi Chakraborty, Adam Martin and Tuhin S. Roy.
Chasing new physics in stacks of soft tracks (arXiv: 1606.07826, Phys. Rev. D (Rapid) 94 (2016) 11, 111703),
Authors: Amit Chakraborty, Sabyasachi Chakraborty and Tuhin S. Roy.
Higgs boson mass, neutrino masses, and mixing and keV dark matter in a U(1)R-lepton number model (arXiv:1309.6538, JHEP 01 (2014) 101),
Authors: Sabyasachi Chakraborty and Sourov Roy.
Awards & Fellowships
2013: CERN Summer School.
2012: DST Travel Grant, Asia Europe Pacific Summer School, Fukuoka. Japan.
2012: DST Travel Grant, PSI Zuoz Summer School, Switzerland.
2010 -- 2015: CSIR Junior and Senior Research Fellowship, India.
2008: Silver Medalist, Indian Institute of Technology, Madras, India.
Conference Presentations
Effective Field Theory with Axions: Intensity and Astrophysical Implications,
WHEPP, Indian Institute of Technology, Gandhinagar, India, 2024.
Displaced Searches for New Physics at Belle,
QNP 2022, Florida State University, Tallahassee, Florida, USA, 2022.
Heavy QCD Axion in B-Factories: Constraints and Projections,
KEK, Tsukuba, Japan, 2021.
Soft Collinear Effective Theory for Gravity,
University of Washington, St. Louis, USA, 2019.
New Sources for Scalar Soft Masses in Supersymmetry,
Pheno2019, University of Pittsburgh, USA, 2019.
Charting Generalized Supersoft Supersymmetry,
SUSY-17, Tata Institute of Fundamental Research, Mumbai, India.
Research Group
High Energy Physics
Sponsored Project
2023 -- 2025: IIT-Kanpur Initiation Grant: (PHY/2022220).
2023 -- 2025: SERB Start-up Research Grant (SERB-SRG/2023/001162).
PhD Supervision
Deepanshu Bisht, 2024--onwards, Topic: Applications of Soft collinear effective field theory.
Atanu Samanta, 2023--onwards,Topic: Effective field theory and phenomenology of Axions.