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Publication Information
Title Observation of a narrow structure in ^1H(gamma,K_S^0)X via interference with phi-meson production
Abstract We report observation of a narrow peak structure at -1.54 GeV with a Gaussian width sigma=6 MeV in the missing mass of KS in the reaction gamma+p-->pKSKL. The observed structure may be due to the interference between a strange (or antistrange) baryon resonance in the pKL system and the phi(KSKL) photoproduction leading to the same final state. The statistical significance of the observed excess of events estimated as the log-likelihood ratio of the resonant signal?+?background hypothesis and the phi-production-based background-only hypothesis corresponds to 5.3sigma.
Author(s) Moskov Amaryan, Gagik Gavalian, Chandra Nepali, M. Polyakov, Iakov Azimov, Bill Briscoe, Gail Dodge, Charles Hyde, Franz Klein, Viacheslav Kuznetsov, Igor Strakovsky, Jixie Zhang
Publication Date March 2012
Document Type Journal Article
Primary Institution Old Dominion University
Affiliation Exp Nuclear Physics / Experimental Halls / Hall A
Funding Source
Proprietary? No
This publication conveys Technical Science Results
Document Numbers
JLAB Number: JLAB-PHY-12-1500 OSTI Number: 1038249
LANL Number: arXiv:1110.3325 Other Number: DOE/OR/23177-2042
Associated with an experiment No
Associated with EIC No
Supported by Jefferson Lab LDRD Funding No
Journal Article
Journal Name Physical Review C
Refereed Yes
Volume 85
Issue 03
Page(s) 035209
Attachments/Datasets/DOI Link
Document(s)
JLAB-PHY-12-1500.pdf (STI Document)
DOI Link
Dataset(s) (none)
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