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5,815 results on '"Kaur, Manpreet"'

12. Kaons and antikaons in isospin asymmetric dense resonance matter at finite temperature

Author

Kaur, Manpreet and Kumar, Arvind

Subjects
High Energy Physics - Phenomenology, Nuclear Theory
Abstract

We study the in-medium properties of kaons and antikaons in isospin asymmetric hot and dense resonance matter within the chiral SU(3) hadronic mean field model. Along with nucleons and hyperons, the interactions of $K$ and $\bar K$ mesons with all decuplet baryons ($\Delta^{++,+,0,-}, \Sigma^{*\pm,0},\Xi^{*0,-}, \Omega^{-}$) are explicitly considered in the dispersion relations. The properties of mesons in the chiral SU(3) model are modified at finite density and temperature of asymmetric resonance matter through the exchange of scalar fields $\sigma, \zeta$ and $\delta$ and the vector fields $\omega, \rho$ and $\phi$. The presence of resonance baryons in the medium at finite temperature is observed to modify significantly the effective masses of $K$ and $\bar{K}$ mesons. We also calculated the optical potentials of kaons and antikaons as a function of momentum in resonance matter. The present study of in-medium masses and optical potentials of kaons and antikaons will be important for understanding the experimental observables from the heavy-ion collision experiments where hot and dense matter may be produced. Our results indicate that when resonance baryons are present within the medium at finite baryonic density, the mass reduction of kaons and antikaons becomes more pronounced as the temperature of the medium increases from zero to 100 and 150 MeV. The study of the optical potentials of kaons and antikaons reveals a stronger correlation with strangeness fraction compared to isospin asymmetry., Comment: 46 pages and 19 figures

Published
2024

28. On The Effective Rate and Error Rate Analysis over Fluctuating Nakagami-m Fading Channel

Author

Kaur, Manpreet, Chauhan, Puspraj Singh, Kumar, Sandeep, and Verma, Pappu Kumar

Subjects
Computer Science - Information Theory, Computer Science - Emerging Technologies, Electrical Engineering and Systems Science - Signal Processing
Abstract

This paper provides a detailed analysis of the important performance metrics like effective capacity and symbol error rate over fluctuating Nakagami-m fading channel. This distribution is obtained from the ratio of two random variables, following the Nakagami-m distribution and the uniform distribution. Our study derives exact analytical expressions for the EC and SER under different modulation schemes, considering the effect of channel parameters. Recognising the importance of additive Laplacian noise in today scenario, it has been considered for the error performance analysis of the system. This work may be utilised for the design and optimization of the systems operating in environments characterized by fluctuating Nakagami-m fading., Comment: 18 pages

Published
2024

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