Psi'' decays to charmless final states

Abstract

The importance of measuring the non-$D\bar{D}$ decays of the ${\psi }^{\prime \prime }=\psi (3770)$ resonance is discussed. These decays can shed light on a possible discrepancy between the total and $D\bar{D}$ cross sections at the ${\psi }^{\prime \prime }$, and on a proposed mechanism for enhancement of penguin amplitudes in $B$ meson decays through charm--anticharm annihilation. Measurements (including the ${\psi }^{\prime \prime }$ line shape) in states of definite G-parity and in inclusive charmless final states such as ${\eta }^{\prime }+X$ are found to be particularly important.

13 pages, 3 figures. To be published in Annals of Physics. Table 1 and references updated

References in corpus (2)

• Measurement of the final states $\omega {\pi }^0$, $\rho \eta$, and $\rho {\eta }^{{}^{\prime }}$ from $\psip$ electromagnetic decays and $\ee$ annihilations
• Possible large branching fraction of psi(3770) decays to charmless final states

Cited by in corpus (37)

• Charmonium
• Quarkonia and their transitions
• New states above charm threshold
• Towards a dynamical understanding of the non-$D\bar{D}$ decay of $\psi (3770)$
• Observation of psi(3770) --> gamma chi_c0
• The evasion of helicity selection rule in ${\chi }_{c1}\to VV$ and ${\chi }_{c2}\to VP$ via intermediate charmed meson loops
• The 2^-+ assignment for the X(3872)
• Hadron loops effect on mass shifts of the charmed and charmed-strange spectra
• Possible 2S and 1D charmed and charmed-strange mesons
• Charmonium decays to gamma pi0, gamma eta, and gamma eta'
• Hadron Spectroscopy: Theory and Experiment
• First Observation of psi(3770) --> gamma chi_{c1} --> gamma gamma J/psi
• Dielectron widths of the S-, D-vector bottomonium states
• Radiative transitions between $0^{-+}$ and $1^{--}$ heavy quarkonia on the light front
• Vector and scalar charmonium resonances with lattice QCD
• Further understanding of the non-$D\bar{D}$ decays of $\psi (3770)$
• The lineshape of $\psi (3770)$ and low-lying vector charmonium resonance parameters in $e^{+}{e}^{-}\to D\bar{D}$
• Higher-order multipole amplitudes in charmonium radiative transitions
• Search for the non-D\barD Decay psi(3770) --> K_S^0 K_L^0
• Comprehending heavy charmonia and their decays by hadron loop effects
• Measurements of the observed cross sections for $e^{+}{e}^{-}\to$ light hadrons at $\sqrt{s}=$ 3.773 and 3.650 GeV
• Heavy Quark Spectroscopy -- Theory Overview
• Study of e${}^{+}$e${}^{-}$ $\to \text{p}\overline{\text{p}}{\pi }^0$ in the Vicinity of the $\psi \text{(3770)}$
• Hadronic transitions from Upsilon(4S) as a probe of four-quark admixture
• Mixing angle and decay constants of $J^P=1^{+}$ heavy-light mesons
• Branching ratios of the decays of psi(3770) and Upsilon(10580) into light hadrons
• Study of the excited $1^{-}$ charm and charm-strange mesons
• Isospin violating decay of $\psi (3770)\to J/\psi +{\pi }^0$
• Non-relativistic quark-antiquark potential: spectroscopy of heavy-quarkonia and exotic SUSY quarkonia
• Puzzles in charmonium decays
• Open charm contributions to the E1 transitions of $\psi (3686)$ and $\psi (3770)\to \gamma {\chi }_{cJ}$
• Measurement of the branching fraction for $\psi (3770)\to \gamma {\chi }_{c0}$
• Electronic width of the $\psi (3770)$ resonance interfering with the background
• Non-$D\bar{D}$ Decays into Light Meson Pairs of the $D$-Wave Charmonium ${\psi }_3(3842)$
• Canonical interpretation of $Y(10750)$ and ${\rm Y}(10860)$ in the ${\rm Y}$ family
• CLEO Spectroscopy Results
• Dissociation cross sections of $\psi (3770)$, $\psi (4040)$, $\psi (4160)$, and $\psi (4415)$ mesons with nucleons