Quasi-exotic open-flavor mesons

Abstract

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.

10 pages, 5 figures, 2 tables, revised version incorporating reviewer comments

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Cited by in corpus (6)

• Aspects of open-flavour mesons in a comprehensive DSBSE study
• New Perspective on Hybrid Mesons
• Relativistic effects in the semileptonic $B_c$ decays to charmonium with the Bethe-Salpeter method
• Ground State Mass Predictions of Heavy-Light Hybrids from QCD Sum-Rule Analysis ($J^P=\left\{0^{\pm },1^{\pm }\right\}$)
• S- and D-wave vector charmonia
• Global Dyson-Schwinger-Bethe-Salpeter Approach to Mesons with Open Flavour