Search for Theta+ at CLAS in gamma n ---> Theta+ K-.

Search for Theta+ at CLAS in gamma n ---> Theta+ K-. [electronic resource]

The existence of pentaquarks is being studied in recent experiments at Jefferson Lab. This analysis investigates the reaction gamma d --> Thetâ+K̂-(p) with the Thetâ+ decaying to pK̂0. Produced with a tagged photon beam of endpoint energy 3.6 GeV incident on a 24 cm liquid deuterium target, the...

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Bibliographic Details
Online Access: Online Access
Corporate Author: Thomas Jefferson National Accelerator Facility (U.S.) (Researcher)
Format: Government Document Electronic eBook
Language:English
Published: Washington, D.C. : Oak Ridge, Tenn. : United States. Department of Energy. Office of Energy Research ; distributed by the Office of Scientific and Technical Information, U.S. Department of Energy, 2006.
Subjects:
Deuterium Target.
Hyperons.
Mesons.
Photon Beams.
Strangeness.
Physics Of Elementary Particles And Fields.
Description
Summary:The existence of pentaquarks is being studied in recent experiments at Jefferson Lab. This analysis investigates the reaction gamma d --> Thetâ+K̂-(p) with the Thetâ+ decaying to pK̂0. Produced with a tagged photon beam of endpoint energy 3.6 GeV incident on a 24 cm liquid deuterium target, the pK̂0_sK̂-(p) final state is measured exclusively. With well defined strangeness and no neutral meson background, this channel is an important place to look for the Thetâ+. However, it contains large contributions from hyperons produced via gamma n --> Y*K̂0, and the effects of mesons are also present in the K̂0K̂- system. The current focus is on understanding these backgrounds.
Item Description:Published through SciTech Connect.
06/01/2006.
"jlab-phy-05-498"
" doe/er/40150-4370"
NSTAR 05, 10-15 Oct 2005, Tallahassee, Florida.
N.A. Baltzell; D.J. Tedeschi.

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