Study of the exclusive initial-state-radiation production of the DD system

Journal Article · Sat Dec 01 00:00:00 EST 2007 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.76.111105· OSTI ID:21023899

Aubert, B; Bona, M; Boutigny, D; Karyotakis, Y; Lees, J P; Poireau, V; Prudent, X; Tisserand, V; Zghiche, A ^[1]; Tico, J Garra; Grauges, E ^[2]; Lopez, L; Palano, A; Pappagallo, M ^[3]; Eigen, G; Stugu, B; Sun, L ^[4]; Abrams, G S; Battaglia, M; Brown, D N ^[5]

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1. Laboratoire de Physique des Particules, IN2P3/CNRS et Universite de Savoie, F-74941 Annecy-Le-Vieux (France)
2. Universitat de Barcelona, Facultat de Fisica, Departament ECM, E-08028 Barcelona (Spain)
3. Universita di Bari, Dipartimento di Fisica and INFN, I-70126 Bari (Italy)
4. University of Bergen, Institute of Physics, N-5007 Bergen (Norway)
5. Lawrence Berkeley National Laboratory and University of California, Berkeley, California 94720 (United States)

A search for charmonium and other new states is performed in a study of exclusive initial-state-radiation production of DD events from electron-positron annihilations at a center-of-mass energy of 10.58 GeV. The data sample corresponds to an integrated luminosity of 384 fb{sup -1} and was recorded by the BABAR experiment at the PEP-II storage ring. The DD mass spectrum shows clear evidence of the {psi}(3770) plus other structures near 3.9, 4.1, and 4.4 GeV/c{sup 2}. No evidence for Y(4260){yields}DD is observed, leading to an upper limit of B(Y(4260){yields}DD)/B(Y(4260){yields}J/{psi}{pi}{sup +}{pi}{sup -})<1.0 at 90% confidence level.

• OSTI ID: 21023899
• Journal Information: Physical Review. D, Particles Fields, Vol. 76, Issue 11; Other Information: DOI: 10.1103/PhysRevD.76.111105; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA). BABAR Collaboration; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
D MESONS
ELECTRON-POSITRON INTERACTIONS
GEV RANGE
J PSI-3097 MESONS
MASS SPECTRA
MULTIPARTICLE SPECTROMETERS
PARTICLE IDENTIFICATION
PARTICLE PRODUCTION
PEP STORAGE RINGS
PIONS MINUS
PIONS PLUS
PSI-3770 MESONS