Angular Distribution of Positive Pion Photoproduction from Hydrogen
نویسندگان
چکیده
منابع مشابه
Helicity-dependent Angular Distributions for Double-charged-pion Photoproduction
Two-pion photoproduction in the reaction γp → pπ + π − has been studied at Jeffer-son Lab Hall B using a circularly-polarized tagged photon beam in the energy range between 0.6 GeV and 2.3 GeV. Beam-helicity-dependent angular distributions of the final-state particles were measured. The large cross-section asymmetries that have been found exhibit strong sensitivity to the kinematics of the reac...
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Two-pion photoproduction in the reaction ~γp → pππ 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 stron...
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The special features of forward pion photoproduction at high energies are discussed. It is established that the cross section for single pion production can generally be expected to have a forward dip barring a conspiracy between Regge trajectories. Photoproduction of the A,(l+) meson followed by its decay is suggested as an important source of high energy forward pions. Submitted to Phys. Rev....
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We have measured the differential cross section for the gamman-->pi(-)p and gammap-->pi(+)n reactions at theta(c.m.)=90 degrees in the photon energy range from 1.1 to 5.5 GeV at Jefferson Lab (JLab). The data at E(gamma) greater, similar 3.3 GeV exhibit a global scaling behavior for both pi(-) and pi(+) photoproduction, consistent with the constituent counting rule and the existing pi(+) photop...
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A partial-wave analysis of single-pion photoproduction data has been completed. This study extends from threshold to 2 GeV in the laboratory photon energy, focusing mainly on the influence of new measurements and modeldependence in the choice of parameterization employed above the two-pion threshold. Results are used to evaluate sum rules and estimate resonance photo-decay amplitudes. These are...
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ژورنال
عنوان ژورنال: Progress of Theoretical Physics
سال: 1967
ISSN: 0033-068X
DOI: 10.1143/ptp.38.1319