Nuclear enhancement of. pi. /sup 0/ and eta mesons produced at large transverse momenta

Journal Article · Mon Sep 12 04:00:00 EDT 1983 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.51.967· OSTI ID:5666463

Povlis, J; Biel, J; Bromberg, C; Brown, B; Chandlee, C; Cihangir, S; Cooper, S R.W.; Ferbel, T; Garelick, D; Glass, G

The authors have measured the large-p/sub T/ inclusive cross sections for ..pi../sup 0/ and eta production near 90/sup 0/ in the center-of-mass system in 200-GeV/c ..pi../sup +/ and proton collisions with beryllium, carbon, and aluminum targets. The cross section for both ..pi../sup 0/ and eta mesons rises with increasing nucleon number (A) of the target nucleus as A/sup ..cap alpha../, with ..cap alpha..>1. The ratio of the ..pi../sup 0/ yield in pA collisions to that in ..pi../sup +/A collisions decreases with increasing p/sub T/. .AE

• Research Organization: Fermilab, Batavia, Illinois 60510; Michigan State University, East Lansing, Michigan 48824; University of Minnesota, Minneapolis, Minnesota 55455; Northeastern University, Boston, Massachusetts 02115; and University of Rochester, Rochester, New York 14627
• OSTI ID: 5666463
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 51:11; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

645103* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Strong Interactions & Baryon & Meson Properties
645104 -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Strong Meson-Induced Interactions-- (-1987)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ALKALINE EARTH METALS
ALUMINIUM
ANGULAR DISTRIBUTION
BARYON-BARYON INTERACTIONS
BERYLLIUM
BOSONS
CARBON
CROSS SECTIONS
DISTRIBUTION
ELEMENTARY PARTICLES
ELEMENTS
ENERGY RANGE
ETA MESONS
GEV RANGE
GEV RANGE 100-1000
HADRON-HADRON INTERACTIONS
HADRONS
INCLUSIVE INTERACTIONS
INTERACTIONS
LINEAR MOMENTUM
MASS SPECTRA
MASSLESS PARTICLES
MESON-BARYON INTERACTIONS
MESON-NUCLEON INTERACTIONS
MESONS
METALS
MONTE CARLO METHOD
NONMETALS
NUCLEON-NUCLEON INTERACTIONS
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PHOTONS
PION-NUCLEON INTERACTIONS
PIONS
PIONS NEUTRAL
PROTON-NUCLEON INTERACTIONS
PSEUDOSCALAR MESONS
SPECTRA
TRANSVERSE MOMENTUM