21–23 May 2018
Topland | Hotel & Convention Center Phitsanulok
Asia/Bangkok timezone

Implication of heavy-quark symmetry in chiral Lagrangian of nucleon, D meson and charmed baryon

22 May 2018, 14:00
15m
Sukhothai Room

Sukhothai Room

Oral High Energy and Particle Physics A12: High Energy Physics

Speaker

Thananuwat Suyuporn (Suranaree University of Technology)

Description

Inspired by the forthcoming experimental data at J-PARC and $\overline{P}$ANDA, 3-point vertices chiral Lagrangian for nucleon, delta, $D$ meson and charmed baryon is constructed in the framework of the $\text{SU(2)}$ flavor symmetry. There are 15 terms in the Lagrangian at the chiral power counting orders $Q^{0}$. By applying the heavy-quark symmetry, that is, introducing degeneracy states of pseudoscalar and vector $D$ mesons as well as spin $1/2$ and $3/2$ charmed baryons in the charm quark mass $M_{c} \rightarrow \infty$ limit, we have reduced the coupling constants of the chiral Lagrangian down to 7 free parameters at the leading order of $1/M_{c}$ expansion. The implication of the heavy-quark symmetry in physical processes are discussed. The chiral Lagrangian may be employed to study the charmed hadron production in J-PARC and $\overline{P}$ANDA.

Primary authors

Thananuwat Suyuporn (Suranaree University of Technology) Thanat Sangkhakrit Dr Daris Samart (Department of Applied Physics, Rajamangala University of Technology Isan) Yupeng Yan (Suranaree University of Technology)

Presentation materials

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