Published 1980 | Version v1
Report Open

Properties of the ωp resonance at 1.8 GeV observed in p polarized p→ pωp at 11.75 GeV/c

Creators

Description

Preliminary results from a sample of approx. 20,000 events of the reaction pp→pωp obtained using the ZGS 11.75-GeV/c polarized proton beam and the Effective Mass Spectrometer are presented. An enhancement in the ωp mass distribution with mass 1.810 +- 0.025 GeV and width 0.140 +- 0.040 GeV is observed. The t distribution of this enhancement shows a pronounced dip near -t = 0.2 GeV2; this dip suggests that the production mechanism is mostly ω-exchange. The decay angular distributions are consistent with a spin-parity of 23-. 4 figures

Availability note (English)

MF available from INIS under the Report Number; Available from NTIS., PC A02/MF A01.

Files

12606458.pdf

Files (165.9 kB)

Name Size Download all
md5:ea813ca9860aee0282d0651a78833477
165.9 kB Preview Download

Additional details

Publishing Information

Imprint Pagination
13 p.
Report number
ANL-HEP-CP--80-33

Conference

Title
20. international conference on high energy physics.
Dates
17 - 23 Jul 1980.
Place
Madison, WI, USA.

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
12606458
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Conference, Numerical Data
Descriptors DEI
CHERENKOV COUNTERS; EXPERIMENTAL DATA; GEV RANGE 10-100; HODOSCOPES; LINEAR MOMENTUM; MAGNETIC SPECTROMETERS; MASS; MASS SPECTRA; MULTIWIRE PROPORTIONAL CHAMBER; OMEGA-1778 RESONANCES; PARITY; PARTICLE WIDTHS; POLARIZED BEAMS; PROTON-PROTON INTERACTIONS; REACTION KINETICS; SPIN; WIRE SPARK CHAMBERS
Descriptors DEC
ANGULAR MOMENTUM; BARYON-BARYON INTERACTIONS; BEAMS; BOSONS; DATA; ELEMENTARY PARTICLES; ENERGY RANGE; FILMLESS SPARK CHAMBERS; GAS TRACK DETECTORS; GEV RANGE; HADRON-HADRON INTERACTIONS; HADRONS; INFORMATION; INTERACTIONS; KINETICS; MEASURING INSTRUMENTS; MESON RESONANCES; MESONS; NUCLEON-NUCLEON INTERACTIONS; NUMERICAL DATA; PARTICLE INTERACTIONS; PARTICLE PROPERTIES; PROPORTIONAL COUNTERS; RADIATION DETECTORS; RESONANCE PARTICLES; SPARK CHAMBERS; SPECTRA; SPECTROMETERS

Optional Information

Secondary number(s)
CONF-800724--66.