Title
Search for the Θ^{+} Pentaquark in the γd→ ΛnK^{+} Reaction Measured with the CLAS Spectrometer
Document Type
Article
Article Version
Publisher's PDF
Publication Date
1-1-2006
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.
Publication Title
Physical Review Letters
Repository Citation
Niccolai, S.; Biselli, Angela; and CLAS Collaboration, "Search for the Θ^{+} Pentaquark in the γd→ ΛnK^{+} Reaction Measured with the CLAS Spectrometer" (2006). Physics Faculty Publications. 76.
https://digitalcommons.fairfield.edu/physics-facultypubs/76
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
Peer Reviewed
Comments
Copyright American Physical Society Publisher final version available at http://prl.aps.org/pdf/PRL/v97/i3/e032001