Pseudoscalar Mesons Scattering off D*-mesons with Chiral Perturbation Theory

¹ Department of Physics and State Key Laboratory of Nuclear Physics and Technology Peking University, Beijing 100871, China
² Department of Physics, H-27, Tokyo Institute of Technology, Meguro, Tokyo 152-8551, Japan
³ School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China
⁴ Department of Physics and State Key Laboratory of Nuclear Physics and Technology and Center of High Energy Physics, Peking University, Beijing 100871, China

^a Speaker e-mail: liuzhanwei@pku.edu.cn
^b e-mail: yrliu@th.phys.titech.ac.jp
^c e-mail: xiangliu@lzu.edu.cn
^d e-mail: zhusl@pku.edu.cn

Abstract

We have systematically calculated the s-wave pseudoscalar mesons and D*- mesons scattering lengths to the third order with chiral perturbation theory, which will be helpful to reveal their strong interaction. We present the scattering lengths (1) in the framework of the heavy meson chiral perturbation theory and (2) in the framework of the infrared regularization.