Document Type
Article
Article Version
Publisher's PDF
Publication Date
1-1-2008
Abstract
We examine the results of two measurements by the CLAS collaboration, one of which claimed evidence for a Θ+ pentaquark, while the other found no such evidence. The unique feature of these two experiments was that they were performed with the same experimental setup. Using a Bayesian analysis, we find that the results of the two experiments are in fact compatible with each other, but that the first measurement did not contain sufficient information to determine unambiguously the existence of a Θ+. Further, we suggest a means by which the existence of a new candidate particle can be tested in a rigorous manner.
Publication Title
Physical Review Letters
Repository Citation
Ireland, D. G.; Biselli, Angela; and CLAS Collaboration, "Bayesian Analysis of Pentaquark Signals from CLAS Data" (2008). Physics Faculty Publications. 63.
https://digitalcommons.fairfield.edu/physics-facultypubs/63
Published Citation
D. G. Ireland et al. [CLAS Collaboration], "Bayesian Analysis of Pentaquark Signals from CLAS Data", Physical Review Letters 100.5 (2008) DOI: 10.1103/PhysRevLett.100.052001
DOI
10.1103/PhysRevLett.100.052001
Peer Reviewed
Comments
Copyright American Physical Society Publisher final version available at http://prl.aps.org/abstract/PRL/v100/i5/e052001