Ambiversion of X(3872)

Abstract

An analysis including most recent Belle data on X(3872) is performed, using coupled channel Flatté formula. A third sheet pole close to but \textit{below} $D^0{D}^{\ast 0}$ threshold is found, besides the bound state/virtual state pole discussed in previous literature. The co-existence of two poles near the $D^0{D}^{\ast 0}$ threshold indicates that the X(3872) may be of ordinary $c\bar{c}$ $2^3{P}_1$ state origin, distorted by strong coupled channel effects. The latter manifests itself as a molecular bound state (or a virtual state).

Slightly revised version accepted for publication in Physics Letter B

References in corpus (31)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• Observation of a narrow charmonium-like state in exclusive B+ -> K+ pi+pi- J/psi decays
• Observation of a New Narrow Charmonium State in Exclusive B+-->K+ pi+pi- J/psi Decays
• Higher Charmonia
• Isospin breaking of the narrow charmonium state of Belle at 3872 MeV as a deuson
• Short Range Structure in the X(3872)
• The D*0 D0bar threshold resonance
• Low-energy Universality and the New Charmonium Resonance at 3870 MeV
• Interference and binding effects in decays of possible molecular component of X(3872)
• The X(3872) boson: Molecule or charmonium
• Molecular States of Heavy Quark Mesons
• Diagnostic Decays of the X(3872)
• Observation of a Near-threshold $D^0{\bar{D}}^0{\pi }^0$ Enhancement in $B\to D^0{\bar{D}}^0{\pi }^{0}K$ Decay
• Reconciling the X(3872) with the near-threshold enhancement in the D^0\bar{D}^{*0} final state
• Axial Resonances in the Open and Hidden Charm Sectors
• Study of Resonances in Exclusive B Decays to Dbar(*)D(*)K
• Line Shapes of the X(3872)
• Measurement of the Dipion Mass Spectrum in X(3872) -> J/Psi Pi+ Pi- Decays
• Coupled-Channel and Screening Effects in Charmonium Spectrum
• Study of the $B\to X(3872)(\to D^{\ast 0}{\bar{D}}^0)K$ decay
• A study of B->X(3872) K, with X(3872)->J/Psi pi+ pi-
• Hadronic Decays of the X(3872) to chi_{cJ} in Effective Field Theory
• Decays of the X(3872) and ${\chi }_{c1}(2P)$ charmonium
• Heavy quark spin selection rule and the properties of the X(3872)
• How Resonances can synchronise with Thresholds
• Exclusive Production of the X(3872) in B Meson Decay
• The Effects of Charged Charm Mesons on the Line Shapes of the X(3872)
• Production of the X(3872) in B Meson Decay by the Coalescence of Charm Mesons
• Hidden charm dynamically generated resonances and the $e^{+}{e}^{-}\to J/\psi D\bar{D}$, $J/\psi D{\bar{D}}^{\ast }$ reactions
• Pionic transitions from X(3872) to chi_{cJ}
• A Precision Determination of the D^0 Mass

Cited by in corpus (50)

• Hadronic molecules
• The hidden-charm pentaquark and tetraquark states
• Non-Standard Heavy Mesons and Baryons, an Experimental Review
• Bounds on the width, mass difference and other properties of X(3872) --> pi+pi-J/psi decays
• An overview of $XYZ$ new particles
• Phenomenology of $P_c(4380{)}^{+}$, $P_c(4450{)}^{+}$ and related states
• Dynamical origin and the pole structure of X(3872)
• A New Hadron Spectroscopy
• Heavy hadronic molecules with pion exchange and quark core couplings: a guide for practitioners
• Different pole structures in line shapes of the $X(3872)$
• Constructing $J/\psi$ family with updated data of charmoniumlike $Y$ states
• Interplay of quark and meson degrees of freedom in near-threshold states: A practical parametrisation for line shapes
• Hidden-charm and bottom meson-baryon molecules coupled with five-quark states
• X(3872) and its production at hadron colliders
• Analysis of J/psi pi+ pi- and D0 D0-bar pi0 Decays of the X(3872)
• The $X_0(2900)$ and its heavy quark spin partners in molecular picture
• Using Line Shapes to Discriminate between Binding Mechanisms for the X(3872)
• Study of open-charm decays and radiative transitions of the X(3872)
• Bottomonium Spectrum with Coupled-Channel Effects
• On the Nature of X(4260)
• Producing fully-charm structures in the $J/\psi$-pair invariant mass spectrum
• $B\to {\chi }_{c1}(1P,2P)K$ decays in QCD factorization and X(3872)
• A Refined Analysis on the $X(3872)$ Resonance
• Some remarks on $X(6900)$
• $Z_c(3900)$ as a $D{\bar{D}}^{\ast }$ molecule from the pole counting rule
• Discussions on the Line-shape of $X(4660)$ Resonance
• Heavy Flavour Physics and CP Violation at LHCb: a Ten-Year Review
• Masses of Scalar and Axial-Vector B Mesons Revisited
• X_1(2900) as a D_1 K molecule
• Fully-heavy structures in the invariant mass spectrum of $J/\psi \psi (3686)$, $J/\psi \psi (3770)$, $\psi (3686)\psi (3686)$, and $J/\psi {\rm Y}(1S)$ at hadron colliders
• Comprehending heavy charmonia and their decays by hadron loop effects
• Comprehending Isospin breaking effects of $X(3872)$ in a Friedrichs-model-like scheme
• How to identify the structure of near-threshold states from the line shape
• Where are ${\chi }_{cJ}(3P)$?
• ${\Lambda }_c(2910)$ and ${\Lambda }_c(2940)$ as the conventional baryons dressed with the $D^{\ast }N$ channel
• Decays of $X(3872)$ to ${\chi }_{cJ}{\pi }^0$ and $J/\psi {\pi }^{+}{\pi }^{-}$
• Angular momentum coefficients for meson strong decay and unquenched quark models
• Possible precise measurements of the $X(3872)$ mass with the $e^{+}{e}^{-}\to {\pi }^0\gamma X(3872)$ and $p\bar{p}\to \gamma X(3872)$ reactions
• Possible hadronic molecular states composed of $S$-wave heavy-light mesons
• On the nature of X(3960)
• On leptonic width of $X(4260)$
• Identifying Hadronic Molecular States with a Neural Network
• The $X(6900)$ peak could be a molecular state
• The $D{\bar{D}}^{\ast }$ interaction with isospin zero in an extended hidden gauge symmetry approach
• Search for Charmonium(-like) states decaying into the ${\Omega }^{-}{\bar{\Omega }}^{+}$ final states
• Branching Fractions of the $X(3872)$
• Review on recent progress in the study of the $N^{\ast }(920)$ subthreshold singularity and the $\sigma /f_0(500)$ meson
• Unified study of $B_s^0\to X(3872){\pi }^{+}{\pi }^{-}(K^{+}{K}^{-})$ and $B_s^0\to \psi (2S){\pi }^{+}{\pi }^{-}(K^{+}{K}^{-})$ processes
• The possible $K{\bar{K}}^{\ast }$ and $D{\bar{D}}^{\ast }$ bound and resonance states by solving Schrodinger equation
• On the origin of the narrow peak and the isospin symmetry breaking of the $X$(3872)