Differences between proton- and. pi. /sup -/-induced production of the charmonium chi states

Journal Article · Mon Feb 25 04:00:00 EST 1985 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.54.753· OSTI ID:5894606

Bauer, D A; Graff, T L; Lukens, P T; Wilson, J R; Alverson, G O; Ascoli, G; Barnes, V E; Bellinger, J N; Cihangir, S; Cooper, J W

The charmonium chi states are observed in both ..pi../sup -/ and p Be interactions near 200 GeV/c via their radiative decay into J/psi. The chi(3510) and chi(3555) are produced with roughly equal cross sections in ..pi../sup -/ collisions while the chi(3555) dominates in p collisions. Simple gluon fusion can account for chi production with incident protons but additional mechanisms are needed for incident ..pi../sup -/.

• Research Organization: Fermi National Accelerator Laboratory, Batavia, Illinois 60510; University of Illinois, Urbana-Champaign, Illinois 61801; University of Pennsylvania, Philadelphia, Pennsylvania 19104; Purdue University, West Lafayette, Indiana 47907; and Tufts University, Medford, Massachusetts 02155
• OSTI ID: 5894606
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 54:8; 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
ACCELERATORS
BARYON REACTIONS
BARYON-BARYON INTERACTIONS
BERYLLIUM 9 TARGET
BOSONS
BRANCHING RATIO
CHARGED-PARTICLE REACTIONS
CHARMONIUM
CHI RESONANCES
CHI-3500 RESONANCES
CHI-3550 RESONANCES
CHICAGO CYCLOTRON
CROSS SECTIONS
CYCLIC ACCELERATORS
CYCLOTRONS
DATA
ELEMENTARY PARTICLES
EXPERIMENTAL DATA
FERMIONS
GLUONS
HADRON REACTIONS
HADRON-HADRON INTERACTIONS
HADRONS
INFORMATION
INTERACTIONS
ISOCHRONOUS CYCLOTRONS
LEPTONS
MASS SPECTRA
MESON REACTIONS
MESON RESONANCES
MESON-BARYON INTERACTIONS
MESON-NUCLEON INTERACTIONS
MESONS
MUONS
NUCLEAR REACTIONS
NUCLEON REACTIONS
NUCLEON-NUCLEON INTERACTIONS
NUMERICAL DATA
PAIR PRODUCTION
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PION MINUS REACTIONS
PION REACTIONS
PION-NUCLEON INTERACTIONS
POSTULATED PARTICLES
PROTON REACTIONS
PROTON-NUCLEON INTERACTIONS
PSI RESONANCES
QUARKONIUM
RADIATIVE DECAY
RESONANCE PARTICLES
SPECTRA
TARGETS
VECTOR MESONS