Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

Measurement of the cross section for [gamma][gamma][r arrow][ital p[bar p]]

Journal Article · · Physical Review, D (Particles Fields); (United States)
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; more »; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; « less
A measurement of the cross section for [gamma][gamma][r arrow][ital p[bar p]] is performed at two-photon center-of-mass energies between 2.00 and 3.25 GeV. These results are obtained using [ital e][sup +][ital e][sup [minus]][r arrow][ital e][sup +][ital e][sup [minus]][ital p[bar p]] events selected from 1.31 fb[sup [minus]1] of data taken with the CLEO II detector. The measured cross section is in reasonable agreement with previous measurements and is in excellent agreement with recent calculations based on a diquark model. However, leading order QCD calculations performed using the Brodsky-Lepage formalism are well below the measured cross section.
OSTI ID:
6924178
Journal Information:
Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 50:9; ISSN PRVDAQ; ISSN 0556-2821
Country of Publication:
United States
Language:
English

Similar Records

[ital [bar p]p][r arrow][bar [Xi]][Xi] reaction in the meson exchange picture
Journal Article · Tue Jun 01 00:00:00 EDT 1993 · Physical Review, C (Nuclear Physics); (United States) · OSTI ID:6497353
Study of the angular distribution of the reaction [ital [bar p]p][r arrow][chi][sub [ital c]2][r arrow][ital J]/[psi][gamma][r arrow][ital e][sup +][ital e[minus]][gamma]
Journal Article · Fri Oct 01 00:00:00 EDT 1993 · Physical Review, D (Particles Fields); (United States) · OSTI ID:6276873
Bottomonium production in [ital [bar p]p] annihilation
Journal Article · Thu Dec 31 23:00:00 EST 1992 · Physical Review, D (Particles Fields); (United States) · OSTI ID:6943306

Related Subjects

662230 -- Quantum Chromodynamics-- (1992-)
662310* -- Weak & Electromagnetic Interactions of Leptons-- (1992-)
662330 -- Photon & Charged-Lepton Interactions with Hadrons-- (1992)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANTIBARYONS
ANTIMATTER
ANTINUCLEI
ANTINUCLEONS
ANTIPARTICLES
ANTIPROTONS
BARYONS
BASIC INTERACTIONS
CENTER-OF-MASS SYSTEM
COMPOSITE MODELS
CROSS SECTIONS
ELECTROMAGNETIC INTERACTIONS
ELECTRON-POSITRON INTERACTIONS
ELEMENTARY PARTICLES
FERMIONS
HADRONS
INTERACTIONS
LEPTON-LEPTON INTERACTIONS
MATHEMATICAL MODELS
MATTER
NUCLEI
NUCLEONS
PARTICLE INTERACTIONS
PARTICLE MODELS
PHOTON-PHOTON INTERACTIONS
PROTONS
QUARK MODEL