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IInvenTiv2026

Faculty details

Prof.Soumya Bagchi

Designation: Associate Professor

Department: Physics

Email: sbagchi[at]iitism[dot]ac[dot]in

Contact Number:

Office Number: +91-326-223-5334

Personal Page: Click Here

About Me: We are the Nuclear Structure and Dynamics Group (NSDG) at the Indian Institute of Technology (Indian School of Mines), Dhanbad. Our research lies in creating the "Universe in the Lab"—investigating the properties of atomic nuclei under extreme conditions and uncovering the intricate links between nuclear physics and astrophysics. To achieve these goals, we utilize cutting-edge tools such as radioactive ion beams and stable beams at world-class facilities across the globe. We actively work with scientists from leading institutions both nationally and internationally, striving to push the frontiers of nuclear science and deepen our understanding of the universe.

Research Interest: Experimental Nuclear Physics, Radioactive And Exotic Nuclei, Collective Excitations In Nuclei, Matter And Charge Radii In Exotic Nuclei, Nuclear Astro.

Teaching

Academic Year 2025-2026

NPHC202: Mathematical Physics (Monsoon Semester, BTech Second Year Engineering Physics Course)
NPHC510: Nuclear and Particle Physics (Winter Semester, First Year Masters Course)

Academic Year 2024-2025

NPHC502: Mathematical Methods for Physicists (Monsoon Semester, First Year Masters Course)
PHC202: Mathematical Physics (Monsoon Semester, BTech Second Year Engineering Physics Course)
NPHC510: Nuclear and Particle Physics (Winter Semester, First Year Masters Course)

Academic Year 2023-2024

PHI101: Classical Mechanics and Electrodynamics (Monsoon Semester, B. Tech. First Year Common Course)
PHI101: Classical Mechanics and Electrodynamics (Winter Semester, B. Tech. First Year Common Course)
PHI101: Classical Mechanics and Electrodynamics (Summer Semester, B. Tech. First Year Common Course)

Academic Year 2022-2023

PHI101: Classical Mechanics and Electrodynamics (Monsoon Semester, B. Tech. First Year Common Course)
PHI101: Classical Mechanics and Electrodynamics (Winter Semester, B. Tech. First Year Common Course)
PHO302: Introduction to Astrophysics and Astronomy (Winter Semester, B. Tech. Third Year Open Elective)

Academic Year 2021-2022

PHI101: Classical Mechanics and Electrodynamics (Monsoon Semester, B. Tech. First Year Common Course)
APC: Optical Communication (Monsoon Semester, B. Tech. Third Year Engineering Physics Course)
PHI101: Classical Mechanics and Electrodynamics (Winter Semester, B. Tech. First Year Common Course)
PHO302: Introduction to Astrophysics and Astronomy (Winter Semester, B. Tech. Third Year Open Elective)

Academic Year 2020-2021

PHC: Nuclear Science and Engineering (Winter Semester, B. Tech. Second Year Engineering Physics Course)
PHC: Nuclear Science and Engineering (Winter Semester, B. Tech. Third Year Engineering Physics Course)
PHO3: Optoelectronics (Winter Semester, Open Elective Course for Second Year Masters)

Academics

2026 - present: Associate Professor, Department of Physics, IIT ISM Dhanbad, Jharkhand, India
2020 - 2026: Assistant Professor, Department of Physics, IIT ISM Dhanbad, Jharkhand, India
2015 - 2020: Postdoctoral Fellow (Joint Position: GSI Helmholtzzentrum, Darmstadt, Germany & Saint Mary's University, Halifax, Canada)
2010 - 2015: Ph.D. at the University of Groningen, the Netherlands (Thesis Title: Study of compression modes in 56Ni using an active target)
2008 - 2010: M.Sc. at IIT Roorkee, India
2005 - 2008: B.Sc. at University of North Bengal, India

Position

Associate Professor

Awards and Honors

Received a research grant (estimated amount around 33 lakhs) from Science and Engineering Research Board (SERB), Department of Science and Technology, Government of India, 2021.
Received a start-up grant (estimated amount around 15 lakhs) from IIT-ISM Dhanbad, 2021.
Selected as an invited participant with full travel support to attend the 48th Arbeitstreffen Kernphysik in Schleching, Germany, 2017.
Post-Doctoral fellowship: Saint Mary’s University, Halifax, Canada; Justus-Liebig University, Giessen, Germany; GSI Helmholtzzentrum, Darmstadt, Germany, 2015 ???? 2020.
Graduate Aptitude Test in Engineering (GATE) fellowship: Ministry of Human Resource Development, India 2010.
Scored 97.15 Percentile in Joint Entrance Screening Test (JEST-2009).
Junior Research Fellowship (JRF) and Lectureship eligibility: Joint Council of Scientific and Industrial Research-University Grant Commission, National Eligibility Test (CSIR-NET), India, 2009.
Visiting Students’ Research Programme fellowship: TIFR, Mumbai, India, 2009.
IASc-INSA-NASI summer research fellowship: Indian Academy of Sciences, 2009 (not availed).
Post-Graduate Merit Scholarship for the University Rank Holder: University Grant Commission (UGC), India, 2008 - 2010.
University Medal in Physics: University of North Bengal, India, 2008.

Publications

Books Published

Effect of Ground-State Shape Deformation on the Collective Excitations in Even-Mass Nd isotopes; M. Abdullah, D. Das, S. Bagchi, M. N. Harakeh et al., Akito Arima Memorial Volume, pp. 1-9 (2025), World Scientific Connect.

List Of Research Publications (only in Peer-reviewed Journals)

Direct mass measurement of 93Pd and implications for the isomer structures in 94Ag: Tracing the two-proton decay branch; G. Kripko-Koncz et al., Physical Review Research 7, L042022 (2025).
Probing isoscalar giant resonances with multipolarity L ≤ 3 in even-A neodymium isotopes; M. Abdullah, K. Khokhar, S. Bagchi et al., Physical Review C 112, 044316 (2025).
Charge Pickup Reaction Cross Section for Neutron-Rich p-Shell Isotopes at 900A MeV; J. C. Zhang et al., Physical Review X 15, 031004 (2025).
Technical design report for the cryogenic stopping cell of the Super-FRS at FAIR; D. Amanbayev et al., The European Physical Journal Special Topics 234, 861-917 (2025).
Investigation of direct nuclear reactions in a storage ring using in-ring detection; J. C. Zamora, T. Aumann, S. Bagchi et al., Physical Review C 110, 044614 (2024).
Effect of ground-state deformation on the isoscalar giant monopole resonance and the first observation of overtones of the isoscalar giant quadrupole resonance in rare-Earth Nd isotopes; M. Abdullah, S. Bagchi et al., Physics Letters B 855, 138852 (2024).
Broken seniority symmetry in the semimagic proton mid-shell nucleus 95Rh; B. Das et al., Physical Review Research 6, L022038 (2024).
A new approach for deducing rms proton radii from charge-changing reactions of neutron-rich nuclei and the reaction-target dependence; J. Zhang et al., Science Bulletin 69, 1647 (2024).
Increasing the rate capability for the cryogenic stopping cell of the FRS Ion Catcher; J. W. Zhao et al., Nuclear Instruments and Methods in Physics Research Section B 547, 165175 (2024).
Accurate simultaneous lead stopping power and charge-state measurements in gases and solids: Benchmark data for basic atomic theory and nuclear applications; S. Ishikawa et al., Physics Letters B 846, 138220 (2023).
Matter radius of the doubly-magic 56Ni measured in a storage ring; M. von Schmid et al., The European Physical Journal A 59(4), 83 (2023).
Studying Gamow-Teller transitions and the assignment of isomeric and ground states at N = 50; A. Mollaebrahimi et al., Physics Letters B 839, 127833 (2023).
Proton Distribution Radii of 16−24O: Signatures of New Shell Closures and Neutron Skin; S. Kaur et al., Physical Review Letters 129, 142502 (2022).
Charge-changing cross sections for 42−51Ca and effect of charged-particle evaporation induced by neutron-removal reactions; M. Tanaka et al., Physical Review C 106, 014617 (2022).
First coupling of the FRS particle identification and the FRS-Ion Catcher data acquisition systems: The case of 109In; A. Spataru et al., Nuclear Inst. and Methods in Physics Research B, 522, 32 - 37 (2022).
Experimental investigation of ground-state properties of 7H with transfer reactions; M. Caamano et al., Physics Letters B 829, 137067 (2022).
Nature of seniority symmetry breaking in the semimagic nucleus 94Ru; B. Das et al., Physical Review C 105, L031304 (2022).
Coulomb and nuclear excitations of 70Zn and 68Ni at intermediate energy; S. Calinescu et al., Physical Review C 104, 034318 (2021).
Radioactive Beams for Image-Guided Particle Therapy: The BARB Experiment at GSI; D. Boscolo et al., Frontiers in Oncology 11, 737050 (2021).
Mass measurements of As, Se, and Br nuclei, and their implication on the proton-neutron interaction strength toward the N = Z line; I. Mardor et al., Physical Review C 103, 034319 (2021).
Signature of a possible α-cluster state in N = Z doubly-magic 56Ni; S. Bagchi et al., The European Physical Journal 56, 290 (2020).
Two-neutron halo is unveiled in 29F; S. Bagchi et al., Physical Review Letters 124, 222504 (2020).
Mass and Half-Life Measurements of Neutron-Deficient Iodine Isotopes; S.A.S Andres et al., The European Physical Journal 56, 143 (2020).
Swelling of Doubly Magic 48Ca core in Ca isotopes beyond N = 28; M. Tanaka et al., Physical Review Letters 124, 102501 (2020).
Isomer studies in the vicinity of the doubly-magic nucleus 100Sn: Observation of a new low-lying isomeric state in 97Ag; C. Hornung et al., Physics Letters B 802, 135200 (2020).
Compression-mode resonances in the calcium isotopes and implications for the asymmetry term in nuclear incompressibility; K.B. Howard et al., Physics Letters B 801, 135185 (2020).
A Novel Method for the Measurement of Half-Lives and Decay Branching Ratios of Exotic Nuclei; I. Miskun et al., The European Physical Journal A 55, 148 (2019).
High-resolution, accurate multiple-reflection time-of-flight mass spectrometry for short-lived, exotic nuclei of few events in their ground and low-lying isomeric states; S.A.S. Andres et al., Physical Review C 99, 064313 (2019).
Neutron skin and signature of the N = 14 shell gap found from measured proton radii of 17−22N; S. Bagchi et al., Physics Letters B 790, 251−256 (2019).
Multi-messenger investigation of the Pygmy Dipole Resonance in 140Ce; D. Savran et al., Physics Letters B 786, 16−20 (2018).
Nuclear-matter radius studies from 58Ni(α, α) experiments at the GSI Experimental Storage Ring with the EXL facility; J.C. Zamora et al., Physical Review C 96, 034617 (2017).
First measurement of isoscalar giant resonances in a stored-beam experiment; J.C. Zamora et al., Physics Letters B 763, 16−19 (2016).
Observation of isoscalar multipole strengths in exotic doubly-magic 56Ni in inelastic α scattering in inverse kinematics; S. Bagchi et al., Physics Letters B 751, 371−375 (2015).
A neutron spectrometer for studying giant resonances with (p,n) reactions in inverse kinematics; L. Stuhl et al., Nuclear Instruments and Methods in Physics Research Section A 736, 1−9 (2014).

Papers in conference abstract volumes / presented

Investigating Pre-equilibrium and Equilibrium Particle Emission in 4He + 92Zr and 93Nb reactions; S. Pal, S. Adhikary, P. Roy, S. Bagchi, et al., Proceedings of the DAE-BRNS Symposium on Nuclear Physics 69, 429 (2025).
Investigation of Fission Isomers using Standalone Fastcom Tec TDC; K. Khokhar, J. Zhao, S. Bagchi, T. Dickel, P. G. Thirolf, et al., Proceedings of the DAE-BRNS Symposium on Nuclear Physics 69, 1409 (2025).
Study of Isoscalar Giant Resonances in highly deformed 172Yb; K. Khokhar, S. Bagchi, M. N. Harakeh et al., Proceedings of the DAE-BRNS Symposium on Nuclear Physics 69, 143 (2025).
Interaction- and charge-changing cross sections for neutron-rich 63−80Cu isotopes toward the derivation of neutron skin thickness; G. Takayama et al., Nuclear Physics A 1065, 123261 (2026).
First observation of MNT isotope beams at the FRS Ion Catcher; Ali Mollaebrahimi, et al., Nuclear Physics A 1057, 123041 (2025).
Measurement of charge-changing cross section of neutron-rich nitrogen isotopes for determining their proton radii; A. Roy, et al., Nuclear Physics A 1054, 122983 (2025).
Investigation of the proton radius of the Borromean halo nucleus 19B; D. Prajapati, et al., Nuclear Physics A 1053, 122977 (2025).
Fission isomer studies with the FRS; J. W. Zhao et al., Proceedings of Science, FAIRness 2022 419, 063, 165175 (2023).
Geant4 Simulation on Gamma-Neutron Detection with CLYC: An Elpasolite Detector; D. Kar, S. Bagchi, Proceedings of the DAE-BRNS Symposium on Nuclear Physics 67, 1297 (2023).
Extraction of Optical-Model Parameters from α elastic scattering of highly-deformed 172Yb; K. Khokhar, S. Bagchi, M. N. Harakeh et al., Proceedings of the DAE-BRNS Symposium on Nuclear Physics 67, 709 (2023).
Effect of ground-state shape deformation on the Isoscalar Giant Monopole Resonance in Nd isotopes; M. Abdullah, S. Bagchi, M. N. Harakeh et al., Proceedings of the DAE-BRNS Symposium on Nuclear Physics 66, 94−95 (2022).
Search for η’-mesic nuclei using (p,d) reaction with FRS/Super-FRS at GSI/FAIR; Y. Tanaka, et al., Journal of Physics: Conference Series 1643, 012181 (2020).
Structure of superheavy hydrogen 7H; M. Caamano, et al., European Physical Journal Web of Conferences 232, 04002 (2020).
Development of a method to deduce point-proton radii from charge changing cross sections; A. Homma, et al., JPS Conference Proceedings 32, 010032 (2020).
Spectroscopy of η’-Mesic nuclei with WASA at GSI/FAIR; Y. K. Tanaka, et al., Acta Physica Polonica B 51, 1 (2020).
A Method to Account for Hydroxide Contamination in Characterizing the Giant Monopole Resonance to Determine an Accurate Kτ ; S. Weyhmiller et al., Bulletin of the American Physical Society 64 (2019).
A Method to Account for Hydroxide Contamination in Characterizing the Giant Monopole Resonance to Determine an Accurate Kτ ; S. Weyhmiller et al., APS Division of Nuclear Physics Meeting Abstracts 045 (2019).
Investigating a possible positive value of Kτ , and implications for the symmetry energy; K. Howard et al., APS Division of Nuclear Physics Meeting Abstracts 007 (2019).
Measurement of proton-distribution radii of neutron-rich nitrogen isotopes; S. Bagchi et al., European Physical Journal Web of Conferences 223, 01003 (2019).
Search for Borromean halo structure in the Island of Inversion; S. Bagchi et al., Proceedings of the DAE-BRNS Symposium on Nuclear Physics 63, 414−415 (2018).
Study of proton distribution of neutron-rich nitrogen isotopes through charge-changing cross section measurements; S. Bagchi et al., Proceedings of the DAE-BRNS Symposium on Nuclear Physics 61, 348−349 (2016).
Nuclear reactions in the storage ring ESR with EXL; Th. Kroell, et al., Journal of Physics: Conference Series 724, 012026 (2016).
Nuclear astrophysics with radioactive ions at FAIR; R. Reifarth, et al., Journal of Physics: Conference Series 665, 012044 (2016).
Nuclear transfer reaction measurements at the ESR - for the investigation of the astrophysical 15O(α,γ)19Ne reaction; D.T. Doherty, et al., Physica Scripta T166, 014007 (2015).
Isoscalar giant resonance studies in a stored-beam experiment within EXL; J.C. Zamora, et al., Physica Scripta T166, 014006 (2015).
Investigation of the Nuclear Matter Distribution of 56Ni by Elastic Proton Scattering in Inverse Kinematics; M. von Schmid, et al., Physica Scripta T166, 014005 (2015).
First Nuclear Reaction Experiment with Stored Radioactive 56Ni Beam and Internal Hydrogen and Helium Targets; P. Egelhof, et al., JPS Conference Proceedings 6, 020049 (2015).
First EXL experiment with stored radioactive beam: Proton scattering on 56Ni; M. von Schmid, et al., European Physical Journal Web of Conferences 66, 03093 (2014).
Alpha cluster structure in 56Ni; H. Akimune, et al., Journal of Physics: Conference Series 436, 012010 (2013).
Neutron-skin thickness from the study of the anti-analog giant dipole resonance; A. Krasznahorkay, et al., AIP Conference Proceedings 1491, 190−197 (2012).
Feasibility Studies for the EXL Project at FAIR; K. Yue, et al., Proceedings of Science STORI’11, 014 (2011).

Projects & Activities

Guidance

Apurbalal Bar (IIT-ISM Dhanbad, 2024 - present), Status: Ongoing (with institute fellowship).
Shinjini Pal (IIT-ISM Dhanbad, 2023 - present), Status: Ongoing (with institute fellowship).
Debodyuti Kar (IIT-ISM Dhanbad, 2022 - present), Status: Ongoing (SERB (SRG) fellowship: Apr 2022 - Feb 2024, institute fellowship: Mar 2024 - present).
Kalpana Khokhar (IIT-ISM Dhanbad, 2021 - present), Status: Ongoing (with institute fellowship).
Mohammad Abdullah (IIT-ISM Dhanbad, 2020 - 2025) Status: Completed.

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