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Hadronic molecules | | Feng-Kun Guo
; Christoph Hanhart
; Ulf-G. Meißner
; Qian Wang
; Qiang Zhao
; Bing-Song Zou
; | | Date: |
29 Apr 2017 | | Abstract: | A large number of experimental discoveries especially in the heavy quarkonium
sector that did not at all fit to the expectations of the until then very
successful quark model led to a renaissance of hadron spectroscopy. Among
various explanations of the internal structure of these excitations, hadronic
molecules, being analogues of light nuclei, play a unique role since for those
predictions can be made with controlled uncertainty. We review experimental
evidences of various candidates of hadronic molecules, and methods of
identifying such structures. Nonrelativistic effective field theories are the
suitable framework for studying hadronic molecules, and are discussed in both
the continuum and finite volumes. Also pertinent lattice QCD results are
presented. Further, we discuss the production mechanisms and decays of hadronic
molecules, and comment on the reliability of certain assertions often made in
the literature. | | Source: | arXiv, 1705.0141 | | Services: | Forum | Review | PDF | Favorites | |
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