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arXiv · 1709.10266

Relativistic baryon-baryon interactions in chiral perturbation theory

Xiu-Lei Ren·Kai-Wen Li·Li-Sheng Geng
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Abstract

We report on the recent studies of leading order baryon-baryon interactions in covariant baryon chiral perturbation theory. In the strangeness $S=0$ sector, one can achieve a rather good description of the Nijmegen $np$ phase shifts with angular momenta $J\leq 1$, particularly the $^1S_0$ and $^3P_0$ partial waves, comparable with the next-to-leading order (NLO) heavy baryon approach. In the strangeness $S=-1$ hyperon-nucleon sector, the best fit of the 36 scattering data is similar to the sophisticated phenomenological models and the NLO heavy baryon approach.

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Xiu-Lei Ren, Kai-Wen Li, Li-Sheng Geng. 2017-09-29. Relativistic baryon-baryon interactions in chiral perturbation theory. https://arxiv.org/abs/1709.10266

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