Study of the invariant structure function of the reaction. pi. /sup -/p. --> gamma. /sup +/xxx at 5 GeV/c

Journal Article · Fri Jul 01 00:00:00 EDT 1977 · Sov. J. Nucl. Phys. (Engl. Transl.); (United States)

OSTI ID:6842368

Amaglobeli, N S; Budagov, Y A; Valkar, S; Vinogradov, V B; Volod'ko, A G; Dzhelepov, V P; Dubinski, Y; Lomakin, Y F; Martinska, G; Moroz, L G; Rumyantsev, V S; Salukvadze, R G; Flyagin, V B; Kharzheev, Y N; Chiladze, B G; Sandor, L; Shoshiashvili, S S

The invariant differential cross section f (x,p/sub perpendicular/) of the reaction ..pi../sup -/p..--> gamma../sup +/xxx at 5 GeV/c was measured in a broad range of x and p/sub perpendicular/. An approximating formula is found for f (x,p/sub perpendicular/). It is shown that the function f (x,p/sub perpendicular/) is not factorizable in the variables x and p/sub perpendicular/. In some regions of phase space scale-invariant (scaling) behavior of the differential cross section is observed. Analysis of the asymmetry of the longitudinal momentum spectrum of the photons indicates that the production mechanisms of neutral and charged pions are similar in the central region. The results of the analysis are in qualitative agreement with the predictions of the quark model of hadrons.

• Research Organization: Joint Institute for Nuclear Research
• OSTI ID: 6842368
• Journal Information: Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Vol. 26:1
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
PION MINUS-PROTON INTERACTIONS
DIFFERENTIAL CROSS SECTIONS
GEV RANGE 01-10
LONGITUDINAL MOMENTUM
PHASE SPACE
PHOTONS
QUARK MODEL
SCALING LAWS
STRUCTURE FUNCTIONS
COMPOSITE MODELS
CROSS SECTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
FUNCTIONS
GEV RANGE
HADRON-HADRON INTERACTIONS
INTERACTIONS
LINEAR MOMENTUM
MASSLESS PARTICLES
MATHEMATICAL MODELS
MATHEMATICAL SPACE
MESON-BARYON INTERACTIONS
MESON-NUCLEON INTERACTIONS
PARTICLE INTERACTIONS
PARTICLE MODELS
PION-NUCLEON INTERACTIONS
PION-PROTON INTERACTIONS
SPACE
645104* - High Energy Physics- Particle Interactions & Properties-Experimental- Strong Meson-Induced Interactions- (-1987)