Exotic Quarkonium Spectroscopy: X(3872), Z_b(10610), and Z_b(10650) in Non-Relativistic Effective Theory

Abstract

This talk summarizes recent developments in quarkonium spectroscopy. I comment on the relation between the Z_b(10610) and Z_b(10650) and recently observed Z_c(3900) and Z_c(4025) states. Then I discuss a number of calculations using non-relativistic effective field theory for the X(3872), Z_b(10610), and Z_b(10650), under the assumption that these are shallow molecular bound states of charm or bottom mesons.

5 pages, to appear in the proceedings of PhiPsi2013: International Workshop on e+e- collisions from Phi to Psi 2013, Rome, Italy, Sep. 9-12, 2013

References in corpus (14)

• Heavy quarkonium: progress, puzzles, and opportunities
• Observation of a charged charmoniumlike structure Z_c(4020) and search for the Z_c(3900) in e+e- to pi+pi-h_c
• Observation of a charged (DD*bar)- mass peak in e+e- --> pi+ (DD*bar)- at Ecm=4.26 GeV
• Observation of a charged charmoniumlike structure in $e^{+}{e}^{-}\to (D^{\ast }{\bar{D}}^{\ast }{)}^{\pm }{\pi }^{\mp }$ at $\sqrt{s}=4.26$GeV
• Pion Interactions in the X(3872)
• Observation of $e^{+}{e}^{-}\to \gamma X(3872)$ at BESIII
• Production of the X(3872) in charmonia radiative decays
• How the Z_c(3900) Reveals the Spectra of Quarkonium Hybrid and Tetraquark Mesons
• Hadronic Decays of the X(3872) to chi_{cJ} in Effective Field Theory
• Confirming the molecular nature of the $Z_b(10610)$ and the $Z_b(10650)$
• On the scattering of D and D* mesons off the X(3872)
• Line shapes in Υ(5S) \to B^{(*)} \bar{B}^{(*)}πwith Z(10610) and Z(10650) using effective field theory
• Study of Three-Body Y(10860) Decays
• Evidence for a Zb0(10610) in Dalitz analysis of Y(5S) -> Y(nS) pi0 pi0