Münster 2017 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 46: Hadron Structure and Spectroscopy VI

HK 46.3: Vortrag

Donnerstag, 30. März 2017, 17:45–18:00, F 5

Meson-baryon scattering to one-loop order in heavy baryon chiral perturbation theory — •Bolin Huang^1,2 and Norbert Kaiser¹ — ¹Physik Department, Technische Universität München, D-85747 Garching, Germany — ²Department of Physics, Yunnan University, Kunming 650091, China

We calculate the T matrices of pseudoscalar meson octet-baryon scattering to one-loop order in SU(3) heavy baryon chiral perturbation theory (HBχPT). The low-energy constants (LECs) and their combinations are then determined by fitting the phase shifts of π N and K N scattering and the corresponding data. By using these LECs, we predict the other channels and obtain reasonable results. The issues like convergence are discussed in detail.