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Effect of inverse magnetic catalysis on conserved-charge fluctuations in a hadron resonance gas model

Ranjita K. Mohapatra
Phys. Rev. C 99, 024902 – Published 5 February 2019

Abstract

The effect of inverse magnetic catalysis (IMC) has been observed on the conserved charge fluctuations and the correlations along the chemical freeze-out curve in a hadron resonance gas model. The fluctuations and the correlations have been compared with and without charge conservations. The charge conservation plays an important role in the calculation of the fluctuations at nonzero magnetic field and for the fluctuations in the strange charge at zero magnetic field. The charge conservation diminishes the correlations χBS and χQB, but enhances the correlation χQS. The baryonic fluctuations (second order) at B=0.25GeV2 increases more than two times compared to B=0 at higher μB. The fluctuations have been compared at nonzero magnetic field along the freeze-out curve, i.e., along fitted parameters of the chemical freeze-out temperature and chemical potentials, with the fluctuations at nonzero magnetic field along the freeze-out curve with the IMC effect, and the results are very different with the IMC effect. This is clearly seen in the products of different moments σ2/M and Sσ of net-kaon distribution.

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  • Received 1 July 2018

DOI:https://doi.org/10.1103/PhysRevC.99.024902

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.

Published by the American Physical Society

Physics Subject Headings (PhySH)

Nuclear Physics

Authors & Affiliations

Ranjita K. Mohapatra*

  • Department of Physics, Indian Institute of Technology Bombay, Mumbai 400076, India; Institute of Physics, Bhubaneswar 751005, India; and Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai 400085, India

  • *ranjita@iitb.ac.in

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Issue

Vol. 99, Iss. 2 — February 2019

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