Measurement of the proton polarization in the reaction. gamma. p. -->. p. pi. /sup 0/ in a linearly polarized photon beam

Journal Article · Sun Aug 01 00:00:00 EDT 1982 · Sov. J. Nucl. Phys. (Engl. Transl.); (United States)

OSTI ID:6048676

Avakyan, R O; Abakyan, E O; Avetisyan, A E

We report measurements of the P/sub x/z component of the polarization vector of the recoil protons in the reaction ..gamma..p..-->..p..pi../sup 0/ in a linearly polarized photon beam with the polarization vector directed at an angle 45/sup 0/ to the reaction plane. The measurements were made at a ..pi../sup 0/-meson production angle in the c.m.s. theta(0 = 60/sup 0/ and a photon energy E/sub ..gamma../ = 0.8--1.5 GeV. The experimental data obtained on the energy distribution of the polarization indicate the presence of a minimum at E/sub ..gamma../ = 0.95 GeV and a maximum at E/sub ..gamma../ = 1.25 GeV. The data are compared with theoretical predictions.

• Research Organization: Erevan Physics Institute
• OSTI ID: 6048676
• Journal Information: Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Vol. 36:2
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
PHOTON-PROTON INTERACTIONS
POLARIZATION
PIONS NEUTRAL
PHOTOPRODUCTION
GEV RANGE 01-10
MEV RANGE 100-1000
POLARIZED BEAMS
POLARIZED PRODUCTS
BASIC INTERACTIONS
BEAMS
BOSONS
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
GEV RANGE
HADRONS
INTERACTIONS
MESONS
MEV RANGE
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PHOTON-BARYON INTERACTIONS
PHOTON-HADRON INTERACTIONS
PHOTON-NUCLEON INTERACTIONS
PIONS
PSEUDOSCALAR MESONS
645101* - High Energy Physics- Particle Interactions & Properties-Experimental- Electromagnetic Interactions & Properties