Journal Article

FZJ-2018-07607

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Exploratory study of possible resonances in heavy meson - heavy baryon coupled-channel interactions

Shen, C.-W. (Corresponding author) ; Rönchen, D. ; Meißner, U.-G.FZJ* ; Zou, B.-S.

2018
IOP Publ. Bristol [u.a.]

This record in other databases:    

Please use a persistent id in citations: http://hdl.handle.net/2128/21213  doi:10.1088/1674-1137/42/2/023106

Abstract: We use a unitary coupled-channel model to study the $\bar{{\rm{D}}}{{\rm{\Lambda }}}_{{\rm{c}}}-\bar{{\rm{D}}}{{\rm{\Sigma }}}_{{\rm{c}}}$ interactions. In our calculation, SU(3) flavor symmetry is applied to determine the coupling constants. Several resonant and bound states with different spin and parity are dynamically generated in the mass range of the recently observed pentaquarks. The approach is also extended to the hidden beauty sector to study the ${\rm{B}}{{\rm{\Lambda }}}_{{\rm{b}}}-{\rm{B}}{{\rm{\Sigma }}}_{{\rm{b}}}$ interactions. As the b-quark mass is heavier than the c-quark mass, there are more resonances observed for the ${\rm{B}}{{\rm{\Lambda }}}_{{\rm{b}}}-{\rm{B}}{{\rm{\Sigma }}}_{{\rm{b}}}$ interactions and they are more tightly bound.

---

Contributing Institute(s):

1. Theorie der Starken Wechselwirkung (IAS-4)
2. JARA - HPC (JARA-HPC)

Research Program(s):

1. 511 - Computational Science and Mathematical Methods (POF3-511) (POF3-511)
2. DFG project 196253076 - TRR 110: Symmetrien und Strukturbildung in der Quantenchromodynamik (196253076) (196253076)
3. Unified analysis of photon- and pion-induced reactions in the hadron exchange picture (jikp07_20110501) (jikp07_20110501)

Appears in the scientific report 2018

---

Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; IF < 5 ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

---