Bayesian Analysis of Pentaquark Signals from CLAS Data

D. G. Ireland; Angela Biselli

doi:10.1103/PhysRevLett.100.052001

Bayesian Analysis of Pentaquark Signals from CLAS Data

D. G. Ireland, Angela Biselli

Fairfield University

Research output: Contribution to journal › Article › peer-review

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.

Original language	American English
Journal	Physical Review Letters
Volume	100
DOIs	https://doi.org/10.1103/PhysRevLett.100.052001
State	Published - Jan 1 2008

Disciplines

Physical Sciences and Mathematics
Physics

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title = "Bayesian Analysis of Pentaquark Signals from CLAS Data",

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.",

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Bayesian Analysis of Pentaquark Signals from CLAS Data

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