1. IE browser is NOT supported anymore. Please use Chrome, Firefox or Edge instead.
2. If you are a new user, please register to get an IHEP SSO account through https://login.ihep.ac.cn/registlight.jsp Any questions, please email us at helpdesk@ihep.ac.cn or call 88236855.
3. If you need to create a conference in the "Conferences, Workshops and Events" zone, please email us at helpdesk@ihep.ac.cn.
4. The max file size allowed for upload is 100 Mb.
16–21 Aug 2019
Guilin Bravo Hotel, Guilin, China
Asia/Shanghai timezone

Multiple charm and hidden charm mesons with strangeness

21 Aug 2019, 09:35
20m
Golden Cassia (Guilin Bravo Hotel, Guilin, China)

Golden Cassia

Guilin Bravo Hotel, Guilin, China

14 South Ronghu Road, Xiangshan, Guilin 541002, Guangxi, China
Parallel Session 3: Exotic hadrons and candidates Session 3: Exotic hadrons and candidates

Speaker

Dr Alberto Martinez Torres (Universidade de São Paulo)

Description

In a recent work we have studied  three-body scattering, considering the $DDK$ system, in a coupled channel approach. All input two-body scattering matrices have been obtained by solving Bethe-Salpeter equations for different channels coupling to same quantum numbers. The lowest order amplitudes for the two-body subsystems are obtained from a Lagrangian based on the heavy quark symmetry. We have investigated the contributions of three-body contact terms and find that there exists a cancellation among the different sources of contact terms. Such a test has been made with Lagrangians based on heavy quark as well as $SU(4)$ symmetries. The resulting amplitude shows that a three-body bound state should exist, with double charm and positive strangeness. In a separate study we have investigated a hidden charm and positive strangeness system $D \bar D^* K$, which we treat as $KX(3872)$ and $KZ(3900)$ coupled channels, where we find a heavy $K^*$ state formed. The results from both studies will be discussed in the talk.

Primary author

Dr Alberto Martinez Torres (Universidade de São Paulo)

Co-authors

Kanchan Khemchandani (U) Dr Lisheng Geng (Beihang University)

Presentation materials