Inclusive photoproduction of protons by bremsstrahlung of maximum energy 2. 0--4. 5 GeV

Journal Article · Tue Mar 01 04:00:00 EST 1977 · Sov. J. Nucl. Phys. (Engl. Transl.); (United States)

OSTI ID:7082511

Alanakyan, K V; Amaryan, M D; Demirchyan, R A; Egiyan, K S; Ogandzhanyan, M S; Sharabyan, Y G

The A/sup n/-dependence and momentum spectra of photoprotons in the nuclei /sup 12/C, /sup 27/Al, /sup 63/Cu, /sup 118/Sn, and /sup 208/Pb have been studied experimentally for maximum bremsstrahlung energies of 2.0, 3.0, and 4.5 GeV. The A-dependence shows that the proton photoproduction mechanism for E/sub ..gamma../MeV is identical for the entire kinetic-energy region 65--280 MeV and the angle region 45--150/sup 0/ for the secondary protons studied. The dependence of the exponent n on the transverse momentum p/sub transverse/is in good agreement with the same dependence for protons produced in nuclei by primary protons. In the momentum spectra of the invariant cross section f= (E/p/sup 2/)(d/sup 2/sigma/d..cap omega..dpQ) approx.exp(-Bp/sup 2/) it is observed that the parameter B does not depend on the incident-photon energy and on the target nucleus, but depends on the proton-detection angle.

• Research Organization: Erevan Physics Institute
• OSTI ID: 7082511
• Journal Information: Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 25:3; 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
ALUMINIUM 27 TARGET
BARYONS
BASIC INTERACTIONS
BREMSSTRAHLUNG
CARBON 12 TARGET
COPPER 63 TARGET
CROSS SECTIONS
ELECTROMAGNETIC INTERACTIONS
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
GEV RANGE
GEV RANGE 01-10
HADRONS
INTERACTIONS
LEAD 208 TARGET
LINEAR MOMENTUM
MASS NUMBER
NUCLEAR REACTIONS
NUCLEONS
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PHOTONUCLEAR REACTIONS
PHOTOPRODUCTION
PHOTOPROTONS
PROTONS
RADIATIONS
TARGETS
TIN 118 TARGET
TRANSVERSE MOMENTUM