4–6 Sept 2025
Lecture Hall Complex, IIT Bhilai
Asia/Kolkata timezone

Properties of strange mesons in dense resonance matter

5 Sept 2025, 09:30
20m
L106 (Lecture Hall Complex, IIT Bhilai)

L106

Lecture Hall Complex, IIT Bhilai

Department of Physics, IIT Bhilai, Kutelabhata, Durg, Chattisgarh 491002

Speaker

Arvind Kumar (Dr B R Ambedkar National Institute of Technology Jalandhar India)

Description

Exploring the in-medium properties of different mesons such as their masses and decay width may play a significant role in understanding the related experimental observables. In this work we focus on the modifications in the properties of pseudoscalar $K$ and vector $\phi$ mesons in the dense hadronic medium using the chiral SU(3) hadronic mean field model. We consider the hadronic medium consisting of nucleons, hyperons and decuplet baryons at finite density and temperature. In the chiral SU(3) model, the properties of baryons are modified through the exchange of scalar fields $\sigma, \zeta$ and $\delta$ and vector fields $\omega, \rho$ and $\phi$. We evaluate the in-medium masses and optical potentials of $K$ mesons at finite baryon density and temperature. Considering the in-medium masses of $K$ mesons as input, masses and decay width of $\phi$ mesons are evaluated using the effective Lagrangian approach through the $\phi K \bar{K}$ interactions at one-loop level. Finite temperature of the resonance matter is found to impact significantly the in-medium masses of different mesons.

Author

Manpreet Kaur (Dr. B R Ambedkar National Institute of Technology Jalandhar, Punjab, India)

Co-author

Arvind Kumar (Dr B R Ambedkar National Institute of Technology Jalandhar India)

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