PoS - Proceedings of Science
Volume 356 - The 4th KMI International Symposium (KMI2019) - Posters
Heavy quark spin multiplet structure of Pc-like pentaquark as hadronic molecular states
Y. Shimizu
Full text: pdf
Pre-published on: November 14, 2019
Published on: December 23, 2019
Abstract
Exotic hadrons are the very interesting research subjects in hadron and nuclear physics. The $X$, $Y$ and $Z$ tetraquarks, and the $P_c$ pentaquarks have a heavy quark and an anti-heavy quark. The heavy quark spin (HQS) doublet structure of the single heavy hadron like $D$ and $D^*$ meson is well known. On the other hand, the HQS multiplet structure of the doubly heavy hadron such as $Q\bar{Q}qqq$-type pentaquark has not been researched much. We study the HQS multiplet structure of the $Q\bar{Q}qqq$-type pentaquarks treated as the hadronic molecular state of a heavy meson and a heavy baryon. The light-cloud spin (LCS) basis is defined to study the HQS multiplet of the doubly heavy quark system. Introducing the LCS basis, there exist four- and ten-types of the HQS multiplet classified by the LCS structure for S- and P-wave $\bar{P}^{(*)}\Sigma_Q^{(*)}$ molecular states, respectively.
DOI: https://doi.org/10.22323/1.356.0030
How to cite

Metadata are provided both in "article" format (very similar to INSPIRE) as this helps creating very compact bibliographies which can be beneficial to authors and readers, and in "proceeding" format which is more detailed and complete.

Open Access
Creative Commons LicenseCopyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.