Precision Measurement of the Mass of the $D^{\ast 0}$ Meson and the Binding Energy of the $X(3872)$ Meson as a $D^0\overline{D^{\ast 0}}$ Molecule

Abstract

A precision measurement of the mass difference between the $D^0$ and $D^{\ast 0}$ mesons has been made using 316~pb${}^{-1}$ of $e^{+}{e}^{-}$ annihilation data taken at $\sqrt{s}=4170$~MeV using the CLEO-c detector. We obtain $\Delta M\equiv M(D^{\ast 0})-M(D^0)=142.007\pm 0.015$(stat)~$\pm$~0.014(syst)~MeV, as the average for the two decays, $D^0\to K^{-}{\pi }^{+}$ and $D^0\to K^{-}{\pi }^{+}{\pi }^{-}{\pi }^{+}$. The new measurement of $\Delta M$ leads to $M(D^{\ast 0})=2006.850\pm 0.049$~MeV, and the currently most precise measurement of the binding energy of the ``exotic'' meson X(3872) if interpreted as a $D^0{D}^{\ast 0}$ hadronic molecule, $E_b(\text{X}(3872))\equiv M(D^0{D}^{\ast 0})-M(\text{X}(3872))=3\pm 192$ keV.

arXiv comment5 pages, 3 figures, published in PRD(RC)

References in corpus (25)

• 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
• Heavy quarkonium: progress, puzzles, and opportunities
• Diquark-Antidiquarks with Hidden or Open Charm and the Nature of X(3872)
• 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
• From the Deuteron to Deusons, an Analysis of Deuteronlike Meson-Meson Bound States
• Study of the B- --> J/psi K- pi+ pi- Decay and Measurement of the B- --> X(3872) K- Branching Fraction
• Short Range Structure in the X(3872)
• Determination of the X(3872) meson quantum numbers
• Charmonium Options for the X(3872)
• The X(3872) boson: Molecule or charmonium
• X(3872) and Other Possible Heavy Molecular States
• Is X(3872) a molecule?
• Measurement of the X(3872) production cross section via decays to J/psi pi pi in pp collisions at sqrt(s) = 7 TeV
• Measurement of Absolute Hadronic Branching Fractions of D Mesons and e^+ e^- --> D D-bar Cross Sections at the psi(3770)
• Is X(3872) a possible candidate of hybrid meson
• Decays of the X(3872) and ${\chi }_{c1}(2P)$ charmonium
• Measurement of Absolute Hadronic Branching Fractions of D Mesons and e^+e^- --> D barD Cross Sections at E_cm = 3773 MeV
• High Precision Measurements of the Form Factors of Pion, Kaon, and Proton at Large Timelike Momentum Transfers
• A Precision Determination of the D^0 Mass
• Measurement of the Mass of the D0 Meson
• High precision measurement of the masses of the $D^0$ and $K_S$ mesons

Cited by in corpus (12)

• The hidden-charm pentaquark and tetraquark states
• Multiquark Resonances
• Transverse momentum distributions of charmonium states with the statistical hadronization model
• Heavy hadronic molecules with pion exchange and quark core couplings: a guide for practitioners
• Measurements of $\psi (2S)$ and $X(3872)\to J/\psi {\pi }^{+}{\pi }^{-}$ production in $pp$ collisions at $\sqrt{s}=8$ TeV with the ATLAS detector
• Couplings between the $\rho$ and $D$- and $D^{\ast }$-mesons
• Threshold Effects and the Line Shape of the X(3872) in Effective Field Theory
• Constraints from precision measurements on the hadron-molecule interpretation of X,Y,Z resonances
• A short review on the compositeness of the $X(3872)$
• Test of the $X(3872)$ Structure in Antiproton-Nucleus Collisions
• Multiquark Hadrons
• Production of exotic hadrons at hadron colliders