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arXiv · 2405.03975

Baryonic thermal screening mass at NLO

Leonardo Giusti·M. Laine·Davide Laudicina·Michele Pepe·Pietro Rescigno
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Abstract

We determine the resummed 1-loop correction to a baryonic thermal screening mass. The calculation is carried out in the framework of a dimensionally reduced effective theory, where quarks are heavy fields due to their non-zero Matsubara frequencies. The correction due to interactions is computed at O($g^2_{ }$) in the coupling constant. In order to solve a 3-body Schr\"odinger equation, we exploit a two-dimensional generalization of the hyperspherical harmonics method. At electroweak scale temperatures, the NLO correction represents a $\sim 4.6 \%$ increase of the free-theory value $3\pi T$ of the screening mass.

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Leonardo Giusti, M. Laine, Davide Laudicina, Michele Pepe, Pietro Rescigno. 2024-05-07. Baryonic thermal screening mass at NLO. https://doi.org/10.1007/jhep06(2024)205

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