Published May 23, 2008 | Version v1
Journal article Metadata-only

Production of New Charmoniumlike States in e+e-→J/ψD(*)D(*) at √(s)≅10.6 GeV

Creators

  • 1. Institute for Theoretical and Experimental Physics, Moscow (Russian Federation)
  • 2. High Energy Accelerator Research Organization (KEK), Tsukuba (Japan)

Description

We report a study of the processes e+e-→J/ψD(*)D(*). In J/ψD*D* we observe a significant enhancement in the D*D* invariant mass spectrum, which we interpret as a new charmoniumlike state and denote X(4160). The X(4160) parameters are M=(4156-20+25±15) MeV/c2 and Γ=(139-61+111±21) MeV. We also report a new measurement of the X(3940) mass and width: M=(3942-6+7±6) MeV/c2 and Γ=(37-15+26±8) MeV. The analysis is based on a 693 fb-1 data sample recorded near the Υ(4S) resonance by the Belle detector at the KEKB asymmetric-energy collider

Additional details

Identifiers

DOI
10.1103/PhysRevLett.100.202001;
arXiv
arXiv:0708.3812v2;

Publishing Information

Journal Title
Physical Review Letters
Journal Volume
100
Journal Issue
20
Journal Page Range
p. 202001-202001.5
ISSN
0031-9007
CODEN
PRLTAO

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
40013562
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
ANNIHILATION; ASYMMETRY; D MESONS; ELECTRON-POSITRON INTERACTIONS; ELECTRONS; GEV RANGE 10-100; J PSI-3097 MESONS; MASS; MASS SPECTRA; PARTICLE WIDTHS; POSITRONS
Descriptors DEC
ANTILEPTONS; ANTIMATTER; ANTIPARTICLES; BOSONS; CHARM PARTICLES; CHARMED MESONS; CHARMONIUM; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; GEV RANGE; HADRONS; INTERACTIONS; LEPTON-LEPTON INTERACTIONS; LEPTONS; MATTER; MESONS; PARTICLE INTERACTIONS; PARTICLE PROPERTIES; PSEUDOSCALAR MESONS; QUARKONIUM; SPECTRA; VECTOR MESONS

Optional Information

Notes
(c) 2008 The American Physical Society
Collaborations
Belle Collaboration