# In-medium properties of the low-lying bottom baryons in the quark-meson coupling model

Source: [In-medium properties of the low-lying bottom baryons in the quark-meson coupling model](<https://www.sota2.com/research/paper/68fa39891e209131ce8c358b>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-24T23:34:13.006Z

Authors: K. Tsushima

Published: 2019-01-15T14:21:45.000Z

## Abstract

In-medium properties of the low-lying baryons are studied in the quark-meson coupling (QMC) model, focusing on the $\\Sigma\_b$ and $\\Xi\_b$ baryons. It is predicted that the Lorentz-scalar effective mass of $\\Sigma\_b$ becomes smaller than that of $\\Xi\_b$ at moderate nuclear matter density, and as the density increases, namely, $m^\*\_{\\Sigma\_b} \< m^\*\_{\\Xi\_b}$, although in vacuum $m\_{\\Sigma\_b} \> m\_{\\Xi\_b}$. We also study the effects of the repulsive Lorentz-vector potentials on the excitation energies of these bottom baryons.

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## Original sources and implementation

[Original paper](<https://arxiv.org/abs/1901.04843>)

[PDF](<https://arxiv.org/pdf/1901.04843.pdf>)