Investigation of polarization parameters in the reaction of deuteron photodisintegration by linearly polarized photons

Journal Article · Tue Apr 01 04:00:00 EST 1986 · Sov. J. Nucl. Phys. (Engl. Transl.); (United States)

OSTI ID:5137868

Bratashevskii-breve, A S; Gorbenko, V G; Gushchin, V A; Zhebrovskii-breve, Y V; Zybalov, A A; Karasev, S P; Kolesnikov, L Y; Konovalov, O G; Rubashkin, A L; Sorokin, P V; others, and

The proton polarization in deuteron photodisintegration by linearly polarized and unpolarized photons at theta = 90/sup 0/ (theta is the angle between the momenta of the proton and photon in the c.m.s.) has been measured in the photon-energy range 300--500 MeV. This permitted us to obtain under similar experimental conditions the observable polarization parameters: P-italic/sub Y-italic/: the proton polarization in the unpolarized beam; ..sigma..: the asymmetry of the cross section, and (for the first time) T-italic/sub 1/: the asymmetry of the proton polarization. Asymmetries arise from linear polarization of the photon. Comparison of the obtained polarization parameters with calculations according to the gauge-invariant pole model (GIPM), which takes into account isobar-exchange currents and includes various numbers of dibaryon resonances (/sup 1/D/sub 2/, /sup 3/F/sub 3/, /sup 1/S/sub 0/, and /sup 3/P/sub 1/) with isospin 1, has shown that the best agreement is observed for the model which includes four dibaryons.

• Research Organization: Khar'kov Physicotechnical Institute, Ukrainian Academy of Sciences
• OSTI ID: 5137868
• Journal Information: Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 43:4; ISSN SJNCA
• Country of Publication: United States
• Language: English

Related Subjects

645101* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Electromagnetic Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMMETRY
BARYONS
BASIC INTERACTIONS
BEAMS
DIBARYON RESONANCES
DISSOCIATION
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
GAUGE INVARIANCE
HADRONS
INTERACTIONS
INVARIANCE PRINCIPLES
MEV RANGE
MEV RANGE 100-1000
NEUTRONS
NUCLEONS
PARTICLE IDENTIFICATION
PARTICLE INTERACTIONS
PHOTON-DEUTERON INTERACTIONS
PHOTON-HADRON INTERACTIONS
POLARIZED BEAMS
POLARIZED PRODUCTS
PROTONS