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Title: Searches for exotic baryons of isospin 5/2 that consist of light quarks

Abstract

The status of isospin-5/2 exotic baryons consisting of light-quarks is considered. A brief survey of theoretical studies devoted to them is given. Experimental searches for exotic baryons are traced from the first publication on the subject to the present day. Among possible candidates for an exotic baryon, the pentaquark baryon E{sub 5/25/2} of mass M {approx} 1.44 GeV/c{sup 2} and width {gamma} < 0.05 GeV/c{sup 2} is the most probable. This state was recorded in six studies at five different facilities. Among these, there are two studies where the excess of the signal above the background is more than five standard deviations. The possibility of further searches for exotic baryons in various reactions is discussed.

Authors:
 [1]
  1. Institute of Theoretical and Experimental Physics (Russian Federation)
Publication Date:
OSTI Identifier:
21076061
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Atomic Nuclei; Journal Volume: 69; Journal Issue: 5; Other Information: DOI: 10.1134/S1063778806050139; Copyright (c) 2006 Nauka/Interperiodica; Article Copyright (c) 2006 Pleiades Publishing, Inc; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; BARYONS; D QUARKS; GEV RANGE; ISOSPIN; MASS; S QUARKS; U QUARKS

Citation Formats

Nilov, A. F. Searches for exotic baryons of isospin 5/2 that consist of light quarks. United States: N. p., 2006. Web. doi:10.1134/S1063778806050139.
Nilov, A. F. Searches for exotic baryons of isospin 5/2 that consist of light quarks. United States. doi:10.1134/S1063778806050139.
Nilov, A. F. Mon . "Searches for exotic baryons of isospin 5/2 that consist of light quarks". United States. doi:10.1134/S1063778806050139.
@article{osti_21076061,
title = {Searches for exotic baryons of isospin 5/2 that consist of light quarks},
author = {Nilov, A. F.},
abstractNote = {The status of isospin-5/2 exotic baryons consisting of light-quarks is considered. A brief survey of theoretical studies devoted to them is given. Experimental searches for exotic baryons are traced from the first publication on the subject to the present day. Among possible candidates for an exotic baryon, the pentaquark baryon E{sub 5/25/2} of mass M {approx} 1.44 GeV/c{sup 2} and width {gamma} < 0.05 GeV/c{sup 2} is the most probable. This state was recorded in six studies at five different facilities. Among these, there are two studies where the excess of the signal above the background is more than five standard deviations. The possibility of further searches for exotic baryons in various reactions is discussed.},
doi = {10.1134/S1063778806050139},
journal = {Physics of Atomic Nuclei},
number = 5,
volume = 69,
place = {United States},
year = {Mon May 15 00:00:00 EDT 2006},
month = {Mon May 15 00:00:00 EDT 2006}
}