Journal
EUROPEAN PHYSICAL JOURNAL A
Volume 53, Issue 6, Pages -Publisher
SPRINGER
DOI: 10.1140/epja/i2017-12330-6
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Funding
- Austrian Science Fund (FWF) [P25121-N27]
- Austrian Science Fund (FWF) [P 25121] Funding Source: researchfish
- Austrian Science Fund (FWF) [P25121] Funding Source: Austrian Science Fund (FWF)
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Meson states with exotic quantum numbers arise naturally in a covariant bound-state framework in QCD. We investigate the consequences of shifting quark masses such that the states are no longer restricted to certain C-parities, but only by J(P).Then, a priori, one can no longer distinguish exotic or conventional states. In order to identify signatures of the different states to look for experimentally, we provide the behavior of masses, leptonic decay constants, and orbital-angular-momentum decomposition of such mesons, as well as the constellations in which they could be found. Most prominently, we consider the case of charged quasi-exotic excitations of the pion.
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