Hidden charm and bottom molecular states

Abstract

We investigate heavy quark symmetries for heavy light meson-antimeson systems in a contact-range effective field theory. In the SU(3) light flavor limit, the leading order Lagrangian respecting heavy quark spin symmetry contains four independent counter-terms. Neglecting $1/m_Q$ corrections, three of these low energy constants can be determ1ined by theorizing a molecular description of the $X(3872)$ and $Z_b(10610)$ states. Thus, we can predict new hadronic molecules, in particular the isovector charmonium partners of the $Z_b(10610)$ and the $Z_b(10650)$ states. We also discuss hadron molecules composed of a heavy meson and a doubly-heavy baryon, which would be related to the heavy meson-antimeson molecules thanks to the heavy antiquark-diquark symmetry. Finally, we also study the $X(3872)\to D^0{\bar{D}}^0{\pi }^0$ decay, which is not only sensitive to the short distance part of the $X(3872)$ molecular wave function, as the $J/\psi \pi \pi$ and $J/\psi 3\pi$ $X(3872)$ decay modes are, but it is also affected by the long-distance structure of the resonance. Furthermore, this decay might provide some information on the interaction between the $D\bar{D}$ charm mesons.

arXiv commentTalk presented at the "International Conference on Exotic Atoms and Related Topics - EXA2014", Wien (Austria), September 2014

References in corpus (24)

• Observation of a New Narrow Charmonium State in Exclusive B+-->K+ pi+pi- J/psi Decays
• Observation of a narrow charmonium-like state in exclusive B+ -> K+ pi+pi- J/psi decays
• Observation of a charged charmoniumlike structure in e+e- to pi+pi-J/psi at \sqrt{s}=4.26 GeV
• Study of $e^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-}J/\psi$ and Observation of a Charged Charmonium-like State at Belle
• Observation of two charged bottomonium-like resonances in Y(5S) decays
• Determination of the X(3872) meson quantum numbers
• Couplings in coupled channels versus wave functions: application to the X(3872) resonance
• Consequences of Heavy Quark Symmetries for Hadronic Molecules
• Heavy quark spin structure in Z_b resonances
• The Heavy Quark Spin Symmetry Partners of the X(3872)
• X(3872): Hadronic Molecules in Effective Field Theory
• Bounds on the width, mass difference and other properties of X(3872) --> pi+pi-J/psi decays
• Light Flavour and Heavy Quark Spin Symmetry in Heavy Meson Molecules
• Radiative transitions from Upsilon(5S) to molecular bottomonium
• Heavy Quark Symmetry Predictions for Weakly Bound B-Meson Molecules
• Power Counting and Perturbative One Pion Exchange in Heavy Meson Molecules
• Implications of heavy quark spin symmetry on heavy meson hadronic molecules
• Deriving the existence of $B{\bar{B}}^{\ast }$ bound states from the X(3872) and Heavy Quark Symmetry
• Remarks on the quantum numbers of X(3872) from the invariant mass distributions of the rho J/psi and omega J/psi final states
• Detecting the long-distance structure of the X(3872)
• Heavy Antiquark--Diquark Symmetry and Heavy Hadron Molecules: Are There Triply Heavy Pentaquarks?
• Study of Three-Body Y(10860) Decays
• Evidence for a Zb0(10610) in Dalitz analysis of Y(5S) -> Y(nS) pi0 pi0
• High precision measurement of the masses of the $D^0$ and $K_S$ mesons

Cited by in corpus (1)

• Test of the $X(3872)$ Structure in Antiproton-Nucleus Collisions