Comparison of pion- and proton-production of charmonium
Technical Report
·
OSTI ID:6660083
Charomium chi states produced in ..pi../sup -/-beryllium interactions at 190 GeV/c and in proton-beryllium interactions at 200 GeV/c and 250 GeV/c have been observed via their decay into J/Psi + ..gamma... This experiment was carried out with the Chicago Cyclotron Magnet Spectrometer at Fermilab. The fraction of J/Psi's resulting from chi decay is measured to be 0.33 +- 0.07 for incident pions and 0.47 +- 0.21 for incident protons. The chi(3510) and chi(3555) are produced in roughly equal numbers for pions, but the chi(3555) dominates for protons. Simple gluon fusion accounts for chi production by protons. This is reasonable considering the lack of valence antiquarks in the proton-beryllium system. Other mechanisms are needed to explain chi production by pions.
- Research Organization:
- Illinois Univ., Urbana (USA). Dept. of Physics
- DOE Contract Number:
- AC02-76ER01195
- OSTI ID:
- 6660083
- Report Number(s):
- DOE/ER/01195-T6; COO-1195-493; ON: DE84015351
- Country of Publication:
- United States
- Language:
- English
Similar Records
Comparison of pion- and proton-production of charmonium
Measurement of chi(3510) and chi(3555) production in 190 GeV/c piminus-beryllium interactions
Differences between proton- and. pi. /sup -/-induced production of the charmonium chi states
Thesis/Dissertation
·
Sat Dec 31 23:00:00 EST 1983
·
OSTI ID:5547543
Measurement of chi(3510) and chi(3555) production in 190 GeV/c piminus-beryllium interactions
Technical Report
·
Sat Dec 31 23:00:00 EST 1983
·
OSTI ID:6740169
Differences between proton- and. pi. /sup -/-induced production of the charmonium chi states
Journal Article
·
Sun Feb 24 23:00:00 EST 1985
· Phys. Rev. Lett.; (United States)
·
OSTI ID:5894606
Related Subjects
645101 -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Electromagnetic Interactions & Properties
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
BARYON REACTIONS
BERYLLIUM 9 TARGET
BOSONS
CHARGED-PARTICLE REACTIONS
CHARMONIUM
CHI RESONANCES
CHI-3500 RESONANCES
CHI-3550 RESONANCES
DATA
ELEMENTARY PARTICLES
ENERGY RANGE
EXPERIMENTAL DATA
GEV RANGE
GEV RANGE 100-1000
HADRON REACTIONS
HADRONS
INFORMATION
MASS SPECTRA
MESON REACTIONS
MESON RESONANCES
MESONS
MUON PAIRS
NUCLEAR REACTIONS
NUCLEON REACTIONS
NUMERICAL DATA
PARTICLE PRODUCTION
PION MINUS REACTIONS
PION REACTIONS
PROTON REACTIONS
PSI RESONANCES
PSI-3105 RESONANCES
QUARKONIUM
RADIATIVE DECAY
RESONANCE PARTICLES
SPECTRA
TARGETS
VECTOR MESONS
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
BARYON REACTIONS
BERYLLIUM 9 TARGET
BOSONS
CHARGED-PARTICLE REACTIONS
CHARMONIUM
CHI RESONANCES
CHI-3500 RESONANCES
CHI-3550 RESONANCES
DATA
ELEMENTARY PARTICLES
ENERGY RANGE
EXPERIMENTAL DATA
GEV RANGE
GEV RANGE 100-1000
HADRON REACTIONS
HADRONS
INFORMATION
MASS SPECTRA
MESON REACTIONS
MESON RESONANCES
MESONS
MUON PAIRS
NUCLEAR REACTIONS
NUCLEON REACTIONS
NUMERICAL DATA
PARTICLE PRODUCTION
PION MINUS REACTIONS
PION REACTIONS
PROTON REACTIONS
PSI RESONANCES
PSI-3105 RESONANCES
QUARKONIUM
RADIATIVE DECAY
RESONANCE PARTICLES
SPECTRA
TARGETS
VECTOR MESONS