Inclusive photoproduction of. pi. /sup 0/ and eta/sup 0/ mesons for photons in the 100-GeV energy range

Journal Article · Mon Oct 31 04:00:00 EST 1983 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.51.1617· OSTI ID:5387973

Breakstone, A M; Cheng, D C; Dorfan, D E; Grillo, A A; Heusch, C A; Palladino, V; Sadrozinski, H F; Schalk, T; Seiden, A; Smith, A D.B.

Inclusive distributions are presented for final-state ..pi../sup 0/ and eta/sup 0/ mesons produced in ..gamma..p interactions. For photon energies from 50 to 130 GeV, both cross sections scale for fractional momenta x/sub F/> or =0.30. The average transverse momentum for both mesons is approximately constant with energy and equal to 0.51 +- 0.05 GeV/c at large x/sub F/. The eta/sup 0//..pi../sup 0/ ratio rises from 0.07 +- 0.03 at x/sub F/ = 0.38 to 0.30 +- 0.09 at x/sub F/ = 0.90. The ..pi../sup 0/ distributions are in good agreement with those seen in the scattering of highly virtual incident photons.

• Research Organization: Institute for Particle Physics, Universtiy of California, Santa Cruz, California 95064
• OSTI ID: 5387973
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 51:18; ISSN PRLTA
• 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
BASIC INTERACTIONS
BOSONS
CROSS SECTIONS
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
ELEMENTS
ENERGY RANGE
ETA MESONS
FRAGMENTATION
GEV RANGE
GEV RANGE 10-100
GEV RANGE 100-1000
HADRONS
HODOSCOPES
HYDROGEN
INCLUSIVE INTERACTIONS
INTERACTIONS
LINEAR MOMENTUM
MESONS
NONMETALS
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PHOTON-BARYON INTERACTIONS
PHOTON-HADRON INTERACTIONS
PHOTON-NUCLEON INTERACTIONS
PHOTON-PROTON INTERACTIONS
PHOTOPRODUCTION
PIONS
PIONS NEUTRAL
PSEUDOSCALAR MESONS
TRANSVERSE MOMENTUM