"Pseudo-Conformal" Sound Speed in the Core of Compact Stars

Mannque Rho

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arXiv · 2209.02327

"Pseudo-Conformal" Sound Speed in the Core of Compact Stars

Mannque Rho

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Abstract

We present the argument that "pseudo-conformal" symmetry permeates from low density near nuclear matter to high density in the core of massive neutron stars. As a support of this argument, we describe how the quenched $g_A\approx 1$ in nuclei and the sound speed $v_s^2/c^2\approx 1/3$ in compact stars are controlled by emerging scale invariance in nuclear interactions. In our description, quasi-baryons could "masquerade" de-confined quarks in the interior of compact stars.

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Mannque Rho. 2022-09-06. "Pseudo-Conformal" Sound Speed in the Core of Compact Stars. https://arxiv.org/abs/2209.02327

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