$\{Q\bar{q}\}\{{\bar{Q}}^{{(}^{\prime })}q\}$ molecular states

Abstract

Masses for $\{Q\bar{q}\}\{{\bar{Q}}^{{(}^{\prime })}q\}$ molecular states are systematically studied in QCD sum rules. The interpolating currents representing the related molecular states are proposed. Technically, contributions of the operators up to dimension six are included in operator product expansion (OPE). Mass spectra for molecular states with $\{Q\bar{q}\}\{{\bar{Q}}^{{(}^{\prime })}q\}$ configurations are obtained.

22 pages, 36 eps figures; revised version accepted for publication in Phys. Rev. D

References in corpus (48)

• 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
• Precision Measurement of Neutrino Oscillation Parameters with KamLAND
• Observation of a Broad Structure in the ${\pi }^{+}{\pi }^{-}J/\psi$ Mass Spectrum around 4.26 GeV/$c^2$
• Observation of the Narrow State $X(3872)\to J/\psi {\pi }^{+}{\pi }^{-}$ in $\bar{p}p$ Collisions at $\sqrt{s}=1.96 \TeV$
• The New Heavy Mesons: A Status Report
• Observation and Properties of the X(3872) Decaying to J/psi pi+ pi- in p-p(bar) Collisions at sqrt(s) = 1.96 TeV
• Isospin breaking of the narrow charmonium state of Belle at 3872 MeV as a deuson
• Study of the B- --> J/psi K- pi+ pi- Decay and Measurement of the B- --> X(3872) K- Branching Fraction
• The Spin Structure of the Nucleon
• Short Range Structure in the X(3872)
• Measurement of e^+e^- to pi^+pi^-J/psi Cross Section via Initial State Radiation at Belle
• Observation of a near-threshold omega-J/psi mass enhancement in exclusive B-->K omega J/psi decays
• The D*0 D0bar threshold resonance
• Evidence for a Narrow Near-Threshold Structure in the $J/\psi \varphi$ Mass Spectrum in $B^{+}\to J/\psi \varphi K^{+}$ Decays
• Interference and binding effects in decays of possible molecular component of X(3872)
• Can the X(3872) be a 1^{++} four-quark state?
• Observation of a new charmonium state in double charmonium production in e+ e- annihilation at \sqrt{s} ~ 10.6 GeV
• Molecular States of Heavy Quark Mesons
• X(3872) and Other Possible Heavy Molecular States
• Observation of two resonance-like structures in the pi+ chi_c1 mass distribution in exclusive B0-bar --> K- pi+ chi_c1 decays
• Are Y(4260) and {\rm Z${}_2^{+}$(4250)} ${\mathrm{D}}_1\mathrm{D}$ or ${\mathrm{D}}_0{\mathrm{D}}^{\ast }$ Hadronic Molecules?
• Confirmation of the Y(4260) Resonance Production in ISR
• Is X(3872) {\sl Really} a Molecular State?
• Diagnostic Decays of the X(3872)
• Is X(3872) a molecule?
• Observation of Y(3940) -> J/psi omega in B -> J/psi omega K at BABAR
• Y(4143) is probably a molecular partner of Y(3930)
• Doubly heavy baryons in QCD sum rules
• Is Z^+(4430) a loosely bound molecular state?
• Possible Molecular Structure of the Newly Observed Y(4260)
• Possible S-wave Bound-States of Two Pseudoscalar Mesons
• Heavy baryon spectroscopy in QCD
• $Z^{+}(4430)$ as a $D_1^{\prime }{D}^{\ast }$ ($D_1{D}^{\ast }$) molecular state
• Deciphering triply heavy baryons in terms of QCD sum rules
• A QCD sum rule calculation for the Y(4140) narrow structure
• Analysis of the Y(4140) with QCD sum rules
• Erratum: QCD sum rules study of the $J^{PC}=1^{--}$ charmonium $Y$ mesons
• QCD sum rules study of the $J^{PC}=1^{--}$ charmonium $Y$ mesons
• QCD sum rules study of the meson Z^+(4430)
• Dynamics of Hadronic Molecule in One-Boson Exchange Approach and Possible Heavy Flavor Molecules
• Threshold effect and π^\pm ψ(2S) peak
• The meson $Z^{+}(4430)$ as a tetraquark state
• Can the ${\pi }^{+}{\chi }_{c1}$ resonance structures be $D^{\ast }{\bar{D}}^{\ast }$ and $D_1\bar{D}$ molecules?
• Width of exotics from QCD sum rules : tetraquarks or molecules?
• X(3872) and the bound state problem of $D^0{\bar{D}}^{\ast 0}$ (${\bar{D}}^0{D}^{\ast 0}$) in a chiral quark model
• Mass spectra of the heavy baryons Lambda_Q and Sigma_Q^(*) from QCD sum rules
• Bound States of the Heavy Flavor Vector Mesons and Y(4008) and $Z_1^{+}(4050)$

Cited by in corpus (46)

• Heavy quarkonium: progress, puzzles, and opportunities
• Hadronic molecules
• The hidden-charm pentaquark and tetraquark states
• New Charmonium States in QCD Sum Rules: a Concise Review
• Exotic Hadrons with Heavy Flavors -X, Y, Z and Related States-
• Possible assignments of the $X(3872)$, $Z_c(3900)$ and $Z_b(10610)$ as axial-vector molecular states
• ${\Lambda }_{c}N$ bound states revisited
• QCD Sum Rules Approach to the $X,Y$ and $Z$ States
• Could $Z_b(10610)$ be a $B^{\ast }\bar{B}$ molecular state?
• Improved QCD sum rule study of $Z_c(3900)$ as a $\bar{D}{D}^{\ast }$ molecular state
• Hadron interaction with heavy quarkonia
• Exotic open-flavor $bc\bar{q}\bar{q}$, $bc\bar{s}\bar{s}$ and $qc\bar{q}\bar{b}$, $sc\bar{s}\bar{b}$ tetraquark states
• Analysis of the $Z_c(4200)$ as axial-vector molecule-like state
• XYZ-like Spectra from Laplace Sum Rule at N2LO in the Chiral Limit
• Systematic studies of charmonium-, bottomonium-, and $B_c$-like tetraquark states
• $S$-wave $D^{(\ast )}N$ molecular states: ${\Sigma }_c(2800)$ and ${\Lambda }_c(2940{)}^{+}$?
• Weak decays of the axial-vector tetraquark $T_{bb;\bar{u}\bar{d}}^{-}$
• Could $Z_c(3900)$ be a $I^G{J}^P=1^{+}{1}^{+}$ $D^{\ast }\bar{D}$ molecular state?
• Hadronic molecules with both open charm and bottom
• Are the $X$(4160) and $X$(3915) charmonium states?
• NumExp: Numerical epsilon expansion of hypergeometric functions
• Heavy Flavour Physics and CP Violation at LHCb: a Ten-Year Review
• Possible $J^{PC}=0^{--}$ Charmonium-like State
• $D\bar{D}$ production and their interactions
• Open charm-bottom scalar tetraquarks and their strong decays
• Exotic B_c-like molecules in QCD Sum Rules
• Analysis of the $Y(4220)$ and $Y(4390)$ as molecular states with QCD sum rules
• Electromagnetic form factors of the $B_c$-like tetraquarks: molecular and diquark-antidiquark pictures
• Open charm-bottom axial-vector tetraquarks and their properties
• Where are ${\chi }_{cJ}(3P)$?
• Experimental Review of Structures in the $J/\psi \varphi$ Mass Spectrum
• $Z_c(4430)$ and $Z_c(4200)$ as triangle singularities
• Study of $X_c(3250)$ as a $D_0^{\ast }(2400)N$ molecular state
• Dynamical study of the $X$(3915) as a molecular $D^{\ast }\overline{D^{\ast }}$ state in a quark model
• $XYZ$ particles at Belle
• Possible hadronic molecular states composed of $S$-wave heavy-light mesons
• New molecular candidates: X(1910), X(2200), and X(2350)
• Topics in Hadron Spectroscopy in 2009
• Hadronic states with both open charm and bottom in effective field theory
• Search for $Z_{s1}^{+}$ and $Z_{s2}^{+}$ strangeonium-like structures
• Possible $D\bar{D}$ and $B\bar{B}$ Molecular states in a chiral quark model
• Analysis of the tetraquark and hexaquark molecular states with the QCD sum rules
• Scalar hidden-charm tetraquark states with QCD sum rules
• Modifications on parameters of $Z(4430)$ in a dense medium
• Analytic calculation of doubly heavy hadron spectral density in coordinate space
• $\lambda$ and $\rho$ Regge trajectories for bottom-charm tetraquarks $(bq)(\bar{c}{\bar{q}}^{\prime })$ and $(cq)(\bar{b}{\bar{q}}^{\prime })$