An alternative fit to Belle mass spectra for DD, D*D* and Lambda_C Lambda_c

Abstract

Peaks observed by Belle in DD at 3.878 GeV and in D*D* at 4.156 GeV may be fitted by phase space multiplied by a form factor with an RMS radius of interaction 0.63 fm. The peak observed in Lambda_C Lambda_C at 4.63 GeV may be explained by Y(4660), multiplied by a corresponding form factor with RMS radius 0.94 fm.

3 pages, 1 figures Shorted version, conclusions unchanged

References in corpus (10)

• Observation of Two Resonant Structures in e+e- to pi+ pi- psi(2S) via Initial State Radiation at Belle
• Observation of a near-threshold omega-J/psi mass enhancement in exclusive B-->K omega J/psi decays
• Observation of a near-threshold enhancement in the e+e- -->Lambda_c+Lambda_c- cross section using initial-state radiation
• Observation of a new charmonium state in double charmonium production in e+ e- annihilation at \sqrt{s} ~ 10.6 GeV
• Search for new charmonium states in the processes e+ e- --> J/psi D(*) D(*) at sqrt{s} ~ 10.6 GeV
• Determination of the $\psi (3770)$, $\psi (4040)$, $\psi (4160)$ and $\psi (4415)$ resonance parameters
• Evidence that the Y(4660) is a f_0(980)psi' bound state
• Measurement of the near-threshold $e^{+}{e}^{-}\to D^{(\ast )\pm }D{}^{\ast \mp }$ cross section using initial-state radiation
• How Resonances can synchronise with Thresholds
• Canonical Charmonium Interpretation for Y(4360) and Y(4660)

Cited by in corpus (19)

• The hidden-charm pentaquark and tetraquark states
• The $XYZ$ states: experimental and theoretical status and perspectives
• Threshold cusps and triangle singularities in hadronic reactions
• Measurement of the e+e- --> D0D*-pi+ cross section using initial-state radiation
• Observation of ${\Xi }_c(2930{)}^0$ and updated measurement of $B^{-}\to K^{-}{\Lambda }_c^{+}{\bar{\Lambda }}_c^{-}$ at Belle
• The $P$-wave $[cs][\bar{c}\bar{s}]$ tetraquark state: Y(4260) or Y(4660)?
• Are the $Y$ states around 4.6 GeV from $e^{+}{e}^{-}$ annihilation higher charmonia?
• Re-examining the $X(4630)$ resonance in the reaction $e^{+}{e}^{-}\to {\Lambda }_c^{+}{\bar{\Lambda }}_c^{-}$
• Evidence of a structure in ${\bar{K}}^0{\Lambda }_c^{+}$ consistent with a charged ${\Xi }_c(2930{)}^{+}$, and updated measurement of ${\bar{B}}^0\to {\bar{K}}^0{\Lambda }_c^{+}{\bar{\Lambda }}_c^{-}$ at Belle
• Baryonium Study in Heavy Baryon Chiral Perturbation Theory
• Can the state $Y(4626)$ be a $P$-wave tetraquark state $[cs][\bar{c}\bar{s}]$?
• Y(4626) as a molecular state from interaction $D_s^{\ast }{\bar{D}}_{s1}(2536)-D_s{\bar{D}}_{s1}(2536)$
• Production of hadron pairs in electron-positron annihilation near the K(+)K(-), D-Dbar, B-Bbar and Lambda(c)(+)-Lambda(c)(-) thresholds
• Role of $Y(4630)$ in the $p\bar{p}\to {\Lambda }_c{\bar{\Lambda }}_c$ reaction near threshold
• A new decay mode of higher charmonium
• Two- and three-body structure of the Y(4660)
• $Y(4626)$ as a $P$-wave $[cs][\bar{c}\bar{s}]$ tetraquark state
• Light meson emissions of the selected charmonium-like states within compact tetraquark configurations
• Mass and width of the Upsilon(4S)