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Title: Pentaquarks: the latest experimental results

Abstract

After the claim of the possible discovery of a pentaquark state, many experiments reported positive and negative results opening a discussion about the pentaquark existence. New experiments with high resolution and high statistics are needed in the reaction channels and for the kinematics of the positive results to solve the controversy. Jefferson Lab started a comprehensive program to search for pentaquark in photoproduction at threshold on proton and deuteron targets, collecting more than 10 times the existing statistics. The first experiment on the proton (g11) just finished to analyze the data, and the first results of the pentaquark search are reported here.

Authors:
;  [1];  [2];  [3]
+ Show Author Affiliations
  1. Istituto Nazionale di Fisica Nucleare - Via Dodecaneso 33 16139 Genova (Italy)
  2. Rensselaer Polytechnic Institute - Troy New York 12180-359 (United States)
  3. (United States)
Publication Date:
OSTI Identifier:
20787658
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 806; Journal Issue: 1; Conference: International workshop on quantum chromodynamics: Theory and experiment, Conversano, Bari (Italy), 16-20 Jun 2005; Other Information: DOI: 10.1063/1.2163745; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; CEBAF ACCELERATOR; DEUTERIUM TARGET; DEUTERONS; PARTICLE IDENTIFICATION; PHOTOPRODUCTION; PROTONS; QUARKS; STATISTICS

Citation Formats

Battaglieri, M., De Vita, R., Kubarovsky, V., and Jefferson Laboratory - 12000 Jefferson Avenue Newport News 23606 Virginia. Pentaquarks: the latest experimental results. United States: N. p., 2006. Web. doi:10.1063/1.2163745.
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Battaglieri, M., De Vita, R., Kubarovsky, V., & Jefferson Laboratory - 12000 Jefferson Avenue Newport News 23606 Virginia. Pentaquarks: the latest experimental results. United States. doi:10.1063/1.2163745.
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Battaglieri, M., De Vita, R., Kubarovsky, V., and Jefferson Laboratory - 12000 Jefferson Avenue Newport News 23606 Virginia. Thu . "Pentaquarks: the latest experimental results". United States. doi:10.1063/1.2163745.
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@article{osti_20787658,
title = {Pentaquarks: the latest experimental results},
author = {Battaglieri, M. and De Vita, R. and Kubarovsky, V. and Jefferson Laboratory - 12000 Jefferson Avenue Newport News 23606 Virginia},
abstractNote = {After the claim of the possible discovery of a pentaquark state, many experiments reported positive and negative results opening a discussion about the pentaquark existence. New experiments with high resolution and high statistics are needed in the reaction channels and for the kinematics of the positive results to solve the controversy. Jefferson Lab started a comprehensive program to search for pentaquark in photoproduction at threshold on proton and deuteron targets, collecting more than 10 times the existing statistics. The first experiment on the proton (g11) just finished to analyze the data, and the first results of the pentaquark search are reported here.},
doi = {10.1063/1.2163745},
journal = {AIP Conference Proceedings},
number = 1,
volume = 806,
place = {United States},
year = {Thu Jan 12 00:00:00 EST 2006},
month = {Thu Jan 12 00:00:00 EST 2006}
}
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Journal Article:
DOI:  10.1063/1.2163745
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  • ; ;
    After the claim of the possible discovery of a pentaquark state, many experiments reported positive and negative results opening a discussion about the pentaquark existence. New experiments with high resolution and high statistics are needed in the reaction channels and for the kinematics of the positive results to solve the controversy. Jefferson Lab started a comprehensive program to search for pentaquark in photoproduction at threshold on proton and deuteron targets, collecting more than 10 times the existing statistics. The first experiment on the proton (g11) just finished to analyze the data, and the first results of the pentaquark search aremore » reported here.« less

  • - Physics Today
    No abstract prepared.

  • - AIP Conference Proceedings
    Using the full 1996 - 2000 ZEUS data at HERA (121 pb-1) we have searched for the {theta}{sub c}{sup 0}(3100) pentaquark in the photoproduction and DIS regime. The search has yielded negative results. The 95% C.L. upper limits on the visible rate R({theta}{sub c}{sup 0} {yields} D{sup *}p/D{sup *}) is 0.23% (0.35% for DIS)

  • ; - Physics of Atomic Nuclei
    The experimental evidence for pentaquarks is reviewed and compared with the experiments that do not see any sign of pentaquarks. This paper is based on a lecture given at the 33rd ITEP Winter School of Physics in the beginning of 2005. Results obtained since then are summarized in the epilogue.

  • ; - Rev. Gen. Therm. 9: 905-20(Jul-Aug 1970).