Inclusive. delta. /sup + +/ production in. pi. /sup -/p interactions at 147 GeV/c

Journal Article · Wed Nov 01 04:00:00 EST 1978 · Phys. Rev., D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.18.3099· OSTI ID:6465478

Brick, D; Fong, D; Heller, M; Shapiro, A M; Widgoff, M; Bruyant, F; Bogert, D; Johnson, M; Burnstein, R; Fu, C; Petersen, D; Robertson, M; Rubin, H; Sard, R; Snyder, A; Tortora, J; Alyea, Jr, E D; Chien, C; Lucas, P; Pevsner, A ; Zdanis, R; Barreiro, F; Benary, O; Brau, J E; Grunhaus, J; Hafen, E S; Hulsizer, R I; Karshon, U; Kistiakowsky, V; Levy, A; Napier, A; Pless, I A; Silverman, J P; Trepagnier, P C; Wolfson, J; Yamamoto, R K; Cohn, H; Jacques, R F; Ou, T C; Plano, R J; Watts, T L; Brucker, E B; Koller, E L; Stamer, P; Taylor, S; Bugg, W; Condo, G; Handler, T; Hart, E; Kraybill, H; Ljung, D; Ludlam, T; Taft, H D

The inclusive production of the ..delta../sup + +/(1232) resonance in ..pi../sup -/p collisions at 147 GeV/c has been studied. The ..delta../sup + +/ is found to be produced in comparable amounts in four-, six-, eight-, and ten-prong events. The Feynman-x, t', P/sub T//sup 2/, and the decay angular distributions of the ..delta../sup + +/ are found to be consistent with the predictions of a one-pion-exchange model with absorption. Essentially all of the ..delta../sup + +/ are found to be associated with a ..delta../sup + +/ ..pi../sup -/ low-mass enhancement. The ..delta../sup + +/ cross section is approximately constant from 11 to 205 GeV/c, which could indicate that the ..delta../sup + +/ is a decay product of a target-fragmentation object. While the one-pion-exchange character of the ..delta../sup + +/ production and the target-fragmentation character of the ..delta../sup + +/..pi../sup -/ low-mass enhancement can both be described in terms of a Deck-type diagram, a Monte Carlo study indicates that any mechanism that produces particles with limited transverse momentum will yield a ..delta../sup + +/..pi../sup -/ low-mass enhancement.

• Research Organization: Brown University, Providence, Rhode Island 02912
• OSTI ID: 6465478
• Journal Information: Phys. Rev., D; (United States), Journal Name: Phys. Rev., D; (United States) Vol. 18:9; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

645104* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Strong Meson-Induced Interactions-- (-1987)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR DISTRIBUTION
BARYON RESONANCES
BARYONS
BOSON-EXCHANGE MODELS
BUBBLE CHAMBERS
CROSS SECTIONS
DECAY
DELTA-1236 RESONANCES
DISTRIBUTION
ELEMENTARY PARTICLES
ENERGY DEPENDENCE
ENERGY RANGE
FERMIONS
FRAGMENTATION
GAS TRACK DETECTORS
GEV RANGE
GEV RANGE 100-1000
HADRON-HADRON INTERACTIONS
HADRONS
INCLUSIVE INTERACTIONS
INTERACTIONS
LINEAR MOMENTUM
MATHEMATICAL MODELS
MEASURING INSTRUMENTS
MESON-BARYON INTERACTIONS
MESON-NUCLEON INTERACTIONS
N RESONANCES
OBE MODEL
OPE MODEL
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PRODUCTION
PARTICLE PROPERTIES
PARTICLE RAPIDITY
PERIPHERAL MODELS
PION MINUS-PROTON INTERACTIONS
PION-NUCLEON INTERACTIONS
PION-PROTON INTERACTIONS
PROPORTIONAL COUNTERS
RADIATION DETECTORS
RESONANCE PARTICLES
TRANSVERSE MOMENTUM