Journal Article

FZJ-2015-05038

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Employing spin symmetry to disentangle different models for the X Y Z states

Cleven, M. (Corresponding author)FZJ* ; Guo, F.-K. ; Hanhart, C.FZJ* ; Wang, Q.FZJ* ; Zhao, Q.

2015
Soc. [S.l.]

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Please use a persistent id in citations: http://hdl.handle.net/2128/9481  doi:10.1103/PhysRevD.92.014005

Abstract: In order to test different models proposed for some states discovered recently in the charmonium mass range that do not fit into the pattern predicted by the conventional quark model, we derive predictions for the spectrum within the hadro-charmonium picture, the tetraquark picture as well as the hadronic molecular approach. We exploit heavy quark spin symmetry for the hadro-charmonium and hadronic molecule scenarios. The patterns that emerge from the different models turn out to be quite distinct. For example, only within the hadro-charmonium picture a pseudoscalar state emerges that is lighter than the Y(4260). Possible discovery channels of these additional states are discussed.

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Contributing Institute(s):

1. Theorie der Starken Wechselwirkung (IAS-4)
2. Theorie der starken Wechselwirkung (IKP-3)

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)

Appears in the scientific report 2015

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

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