Soham Banerjee
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Soham Banerjee has a total of 49 co-authors. Here are the top co-authors by number of shared publications:
- Amaresh Jaiswal
Homi Bhabha National Institute
3 shared publications - Radoslaw Ryblewski
Institute of Nuclear Physics Polish Academy of Sciences 31-342 Krakow Poland
2 shared publications - Samapan Bhadury
Jagiellonian University
2 shared publications - Wojciech Florkowski
University of Georgia, USA
2 shared publications - Amal Sarkar
Indian Institute of Technology Mandi
1 shared publication Ankit Kumar Panda
School of Physical Sciences, National Institute of Science Education and Research, HBNI, Jatni 752050, India
1 shared publication
Latest Publications
- Open Access
- 7 July 2026
- Published by Jagiellonian University in Acta Physica Polonica B
- Vol. 57 (8)
Hyperon Longitudinal Polarization and Vector Meson Spin Alignment in a Thermal Model for Heavy-ion Collisions
The concept of a common local spin equilibrium for both spin-1/2 and spin-1 particles is incorporated into a thermal model of particle production in heavy-ion collisions at the top RHIC energies. We show that an effective spin polarization tensor leading to a correct description of the longitudinal spin polarization of \({\mit \Lambda }\) hyperons simultaneously yields a positive alignment of vector mesons (\(\phi \) and \(K^{*0}\)) that grows monotonically with transverse momentum and centrality. Similar trends can be seen in the data, suggesting a possible common mechanism for longitudinal spin polarization and alignment. However, model calculations are insufficient to explain the data in a fully quantitative way. The correlation found between the magnitude of the \({\mit \Lambda }\) longitudinal polarization and vector meson alignment suggests further more elaborate investigations of this issue. Published by the Jagiellonian University 2026 authors- 7 July 2026
- Published by Jagiellonian University in Acta Physica Polonica B
- Vol. 57 (8)
Open AccessHyperon Longitudinal Polarization and Vector Meson Spin Alignment in a Thermal Model for Heavy-ion Collisions
The concept of a common local spin equilibrium for both spin-1/2 and spin-1 particles is incorporated into a thermal model of particle production in heavy-ion collisions at the top RHIC energies. We show that an effective spin polarization tensor leading to a correct description of the longitudinal spin polarization of \({\mit \Lambda }\) hyperons simultaneously yields a positive alignment of vector mesons (\(\phi \) and \(K^{*0}\)) that grows monotonically with transverse momentum and centrality. Similar trends can be seen in the data, suggesting a possible common mechanism for longitudinal spin polarization and alignment. However, model calculations are insufficient to explain the data in a fully quantitative way. The correlation found between the magnitude of the \({\mit \Lambda }\) longitudinal polarization and vector meson alignment suggests further more elaborate investigations of this issue. Published by the Jagiellonian University 2026 authors - Open Access
- 26 June 2025
- Published by American Physical Society (APS) in Physical Review C
- Vol. 111 (6)
Longitudinal spin polarization in a thermal model with dissipative corrections
In this work, we address the problem of longitudinal spin polarization of the Λ hyperons produced in relativistic heavy-ion collisions. We combine a relativistic kinetic-theory framework that includes spin degrees of freedom treated in a classical way with the freeze-out parametrization used in previous investigations. The use of the kinetic theory allows us to incorporate dissipative corrections (due to the thermal shear and gradients of thermal vorticity) into the Pauli-Lubanski vector that determines spin polarization and can be directly compared with the experimental data. As in earlier similar studies, it turns out that a successful description of data can only be achieved with additional assumptions—in our case, they involve the use of projected thermal vorticity and a suitably adjusted time for spin relaxation ( τ s ). From our analysis, we find that τ s ∼ 5 fm / c , which is comparable with other estimates.
- 26 June 2025
- Published by American Physical Society (APS) in Physical Review C
- Vol. 111 (6)
Open AccessLongitudinal spin polarization in a thermal model with dissipative corrections
In this work, we address the problem of longitudinal spin polarization of the Λ hyperons produced in relativistic heavy-ion collisions. We combine a relativistic kinetic-theory framework that includes spin degrees of freedom treated in a classical way with the freeze-out parametrization used in previous investigations. The use of the kinetic theory allows us to incorporate dissipative corrections (due to the thermal shear and gradients of thermal vorticity) into the Pauli-Lubanski vector that determines spin polarization and can be directly compared with the experimental data. As in earlier similar studies, it turns out that a successful description of data can only be achieved with additional assumptions—in our case, they involve the use of projected thermal vorticity and a suitably adjusted time for spin relaxation ( τ s ). From our analysis, we find that τ s ∼ 5 fm / c , which is comparable with other estimates.
- 13 June 2025
- Published by World Scientific Pub Co Pte Ltd in International Journal of Modern Physics E
- Vol. 34 (07)
Dynamics of hot QCD matter 2024 — Bulk properties
The second Hot QCD Matter 2024 conference at IIT Mandi focused on various ongoing topics in high-energy heavy-ion collisions, encompassing theoretical and experimental perspectives. This proceedings volume includes 19 contributions that collectively explore diverse aspects of the bulk properties of hot QCD matter. The topics encompass the dynamics of electromagnetic fields, transport properties, hadronic matter, spin hydrodynamics, and the role of conserved charges in high-energy environments. These studies significantly enhance our understanding of the complex dynamics of hot QCD matter, the quark–gluon plasma (QGP) formed in high-energy nuclear collisions. Advances in theoretical frameworks, including hydrodynamics, spin dynamics and fluctuation studies, aim to improve theoretical calculations and refine our knowledge of the thermodynamic properties of strongly interacting matter. Experimental efforts, such as those conducted by the ALICE and STAR collaborations, play a vital role in validating these theoretical predictions and deepening our insight into the QCD phase diagram, collectivity in small systems, and the early-stage behavior of strongly interacting matter. Combining theoretical models with experimental observations offers a comprehensive understanding of the extreme conditions encountered in relativistic heavy-ion and proton-proton collisions.
- 13 June 2025
- Published by World Scientific Pub Co Pte Ltd in International Journal of Modern Physics E
- Vol. 34 (07)
Dynamics of hot QCD matter 2024 — Bulk properties
The second Hot QCD Matter 2024 conference at IIT Mandi focused on various ongoing topics in high-energy heavy-ion collisions, encompassing theoretical and experimental perspectives. This proceedings volume includes 19 contributions that collectively explore diverse aspects of the bulk properties of hot QCD matter. The topics encompass the dynamics of electromagnetic fields, transport properties, hadronic matter, spin hydrodynamics, and the role of conserved charges in high-energy environments. These studies significantly enhance our understanding of the complex dynamics of hot QCD matter, the quark–gluon plasma (QGP) formed in high-energy nuclear collisions. Advances in theoretical frameworks, including hydrodynamics, spin dynamics and fluctuation studies, aim to improve theoretical calculations and refine our knowledge of the thermodynamic properties of strongly interacting matter. Experimental efforts, such as those conducted by the ALICE and STAR collaborations, play a vital role in validating these theoretical predictions and deepening our insight into the QCD phase diagram, collectivity in small systems, and the early-stage behavior of strongly interacting matter. Combining theoretical models with experimental observations offers a comprehensive understanding of the extreme conditions encountered in relativistic heavy-ion and proton-proton collisions.