Speaker
Summary
Continuum coupling effects can play an important role in heavy meson spectroscopy and structure, especially in the case of mesons close to open- or hidden-flavor meson-meson decay thresholds. I will discuss some of the most relevant cases, including the X(3872) [1,2], the Chi_b(3P) system [2,3] and the D_s0*(2317) [4], and show how the presence of these thresholds can induce mass shifts with respect to naive QM predictions for the bare meson masses. I will also discuss how continuum coupling effects can be introduced in the QM formalism to calculate some of these mesons’ main decay modes.
References
[1] J. Ferretti, G. Galatà and E. Santopinto, Phys. Rev. C 88, 015207 (2013).
[2] J. Ferretti, G. Galatà and E. Santopinto, Phys. Rev. D 90, 054010 (2014).
[3] J. Ferretti and E. Santopinto, Phys. Rev. D 90, 094022 (2014).
[4] J. Ferretti and E. Santopinto, arXiv: 1506.04415.
