A New Way to Compute the Pseudoscalar Screening Mass at Finite Chemical Potential

Hegde, P and Thakkar, R (2024) A New Way to Compute the Pseudoscalar Screening Mass at Finite Chemical Potential. In: 40th International Symposium on Lattice Field Theory, LATTICE 2023, 31 July 2023 - 4 August 2023, Batavia.

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Abstract

We present a method to calculate the pion screening mass in 2+1-flavor lattice QCD to O(μ�2), where μ� is the isoscalar chemical potential. Our approach is based on the expression for the free theory pion screening correlator for massless quarks. We use the Taylor expansion method to calculate the screening correlator to O(μ�4). We then extract the O(μ�2) Taylor coefficient of the screening mass from the Taylor coefficients of the correlator, for two temperatures in the range 2-3 GeV. Our calculations were done using the Highly Improved Staggered Quark action, and the strange and light quark masses were set respectively to their physical and nearly physical values, corresponding to meson masses Ms�s = 686 MeV and M� = 160 MeV. © Copyright owned by the author(s) under the terms of the Creative Commons.

Item Type:	Conference Paper
Publication:	Proceedings of Science
Publisher:	Sissa Medialab Srl
Additional Information:	The copyright for this article belongs to the publisher.
Keywords:	Lattice QCD; Light quarks; Pseudoscalars; Quark mass; Staggered quarks; Taylor coefficients; Taylor expansion method, Bosons
Department/Centre:	Division of Physical & Mathematical Sciences > Centre for High Energy Physics
Date Deposited:	10 Dec 2024 17:55
Last Modified:	10 Dec 2024 17:55
URI:	http://eprints.iisc.ac.in/id/eprint/87096

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