Helicity-Dependent Angular Distributions in Double-Charged-Pion Photoproduction.

Strauch, S.

Technical Information Center Oak Ridge Tennessee

关键词: Photoproduction;    Pions;    Photon beams;    Energy range;    Cross sections;   

RP-ID  :  DE2004824735

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

Two-pion photoproduction in the reaction(gamma)p(yields) p(pi)(sup+)(pi)(sup -) has been studied at Jefferson Lab Hall B using a circularly-polarized tagged photon beam in the energy range between 0.6 GeV and 2.3 GeV. Owing to the large angular acceptance of the CLAS detector, complete beam-helicity-dependent angular distributions of the final-state particles were measured. The large cross-section asymmetries exhibit strong sensitivity to the kinematics of the reaction and provide valuable information on the reaction dynamics. Preliminary results are presented.