Article
Search for the Θ^{+} Pentaquark in the γd→ ΛnK^{+} Reaction Measured with the CLAS Spectrometer
Physical Review Letters
Document Type
Article
Article Version
Publisher's PDF
Publication Date
1-1-2006
Disciplines
Abstract
For the first time, the reaction γd→ΛnK+ has been analyzed in order to search for the exotic pentaquark baryon Θ+(1540). The data were taken at Jefferson Laboratory, using the Hall-B tagged-photon beam of energy between 0.8 and 3.6 GeV and the CEBAF Large Acceptance Spectrometer (CLAS). No statistically significant structures were observed in the nK+ invariant-mass distribution. The upper limit on the γd→ΛΘ+ integrated cross section has been calculated and found to be between 5 and 25 nb, depending on the production model assumed. The upper limit on the differential cross section is also reported.
Comments
Copyright American Physical Society
Publisher final version available at
http://prl.aps.org/pdf/PRL/v97/i3/e032001
Published Citation
Niccolai, Silvia, et al. "Search for the Θ^{+} Pentaquark in the γd→ ΛnK^{+} Reaction Measured with the CLAS Spectrometer." Physical review letters 97.3 (2006): 032001.
10.1103/PhysRevLett.97.032001
DOI
10.1103/PhysRevLett.97.032001
None
Peer Reviewed
Citation Information
S. Niccolai, Angela Biselli and CLAS Collaboration. "Search for the Θ^{+} Pentaquark in the γd→ ΛnK^{+} Reaction Measured with the CLAS Spectrometer" Physical Review Letters Vol. 97 Iss. 3 (2006) Available at: http://works.bepress.com/angela_biselli/17/