Exclusive initial-state-radiation production of the DD[over-bar], D[superscript *]D[over-bar] , and D[superscript *]D[over-bar][superscript * ] systems

• Main Authors: Zhao, M. (Contributor), Yamamoto, R. K. (Contributor), Spitznagel, M. (Contributor), Sciolla, Gabriella (Contributor), Henderson, Shawn Wesley (Contributor), Dujmic, Denis (Contributor), Cowan, Ray Franklin (Contributor), Fisher, Peter H. (Contributor)
• Other Authors: Massachusetts Institute of Technology. Department of Physics (Contributor), Massachusetts Institute of Technology. Laboratory for Nuclear Science (Contributor)
• Format: Article
• Language: English
• Published: American Physical Society, 2010-04-02T20:16:20Z.
• Subjects: Article
• Online Access: Get fulltext

We perform a study of the exclusive production of DD[over-bar], D[superscript *]D[over-bar], and D[superscript *]D[over-bar][superscript *] in initial-state-radiation events, from e[superscript +]e[superscript -] annihilations at a center-of-mass energy near 10.58 GeV, to search for charmonium and possible new resonances. The data sample corresponds to an integrated luminosity of 384  fb[superscript -1] and was recorded by the BABAR experiment at the PEP-II storage rings. The DD[over-bar] , D[superscript *]D[over-bar], and D[superscript *]D[over-bar][superscript *] mass spectra show clear evidence of several ψ resonances. However, there is no evidence for Y(4260)--> D[superscript *]D[over-bar] or Y(4260)-->D[superscript *]D[over-bar][superscript *].
Science and Technology Facilities Council, United Kingdom
MEC (Spain)
Ministry of Education and Science of the Russian Federation
Norges forskningsråd
Foundation for Fundamental Research on Matter (The Netherlands)
DFG (Germany)
Bundesministerium für Bildung und Forschung, Germany
Institut National de Physique Nucleaire et Physique des Particules/CNRS
Istituto Nazionale di Fisica Nucleare of Italy
Commissariat à l'énergie atomique (France)
Engineering Research Council (Canada)
Natural Sciences and Engineering Research Council of Canada
United States Department of Energy
National Science Foundation