Article
Search for Θ+(1540) Pentaquark in High-Statistics Measurement of γp→K¯¯¯0K+n at CLAS
Physical Review Letters
Document Type
Article
Article Version
Publisher's PDF
Publication Date
1-1-2006
Disciplines
Abstract
The exclusive reaction γp→K̅ 0K+n was studied in the photon energy range between 1.6 and 3.8 GeV searching for evidence of the exotic baryon Θ+(1540)→nK+. The decay to nK+ requires the assignment of strangeness S=+1 to any observed resonance. Data were collected with the CLAS detector at the Thomas Jefferson National Accelerator Facility corresponding to an integrated luminosity of 70 pb-1. No evidence for the Θ+ pentaquark was found. Upper limits were set on the production cross section as function of center-of-mass angle and nK+ mass. The 95% C.L. upper limit on the total cross section for a narrow resonance at 1540 MeV was found to be 0.8 nb.
Published Citation
M. Battaglieri et al. [CLAS Collaboration], "Search for Θ+(1540) Pentaquark in High-Statistics Measurement of γp→K¯¯¯0K+n at CLAS", Physical Review Letters 96.4 (2006)
DOI: 10.1103/PhysRevLett.96.042001
DOI
10.1103/PhysRevLett.96.042001
None
Peer Reviewed
Citation Information
M. Battaglieri, Angela Biselli and CLAS Collaboration. "Search for Θ+(1540) Pentaquark in High-Statistics Measurement of γp→K¯¯¯0K+n at CLAS" Physical Review Letters Vol. 96 Iss. 4 (2006) Available at: http://works.bepress.com/angela_biselli/7/
Copyright American Physical Society 2006.
Final publisher version also available at http://prl.aps.org/pdf/PRL/v96/i4/e042001