Published December 1, 1980
| Version v1
Journal article
Observation of a direct low-mass e+e- continum in π-p interactions at 16 GeV/c
Creators
- 1. Stanford Linear Accelerator Center, CA (USA)
- 2. Johns Hopkins Univ., Baltimore, MD (USA)
- 3. California Inst. of Tech., Pasadena (USA)
Description
The production of prompt electron-positron pairs in 16 GeV/c π-p collisions has been measured using the LASS spectrometer at SLAC. An excess of events is observed above the estimated contribution of direct and Dalitz decays of known resonances in the kinematic range defined by 0.1 <= chi <= 0.45, 0 <= psub(T) <= 0.8 GeV/c and 0.2 <= M(e+e-) <= 0.7 GeV/c2. The excess signal decreases slowly with increasing M, but exhibits very steep x and p2sub(T) dependence. (orig.)
Additional details
Publishing Information
- Journal Title
- Phys. Lett., B
- Journal Volume
- 97
- Journal Issue
- 2
- Series
- Phys. Lett., B.
- Journal Page Range
- 315-319
- ISSN
- 0370-2693
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 12594228
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- DIFFERENTIAL CROSS SECTIONS; EFFECTIVE MASS; ELECTRONS; EXPERIMENTAL DATA; GEV RANGE 10-100; MASS SPECTRA; PAIR PRODUCTION; PION MINUS-PROTON INTERACTIONS; POSITRONS; TRANSVERSE MOMENTUM
- Descriptors DEC
- ANTILEPTONS; ANTIMATTER; ANTIPARTICLES; CROSS SECTIONS; DATA; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; GEV RANGE; HADRON-HADRON INTERACTIONS; INFORMATION; INTERACTIONS; LEPTONS; LINEAR MOMENTUM; MASS; MATTER; MESON-BARYON INTERACTIONS; MESON-NUCLEON INTERACTIONS; NUMERICAL DATA; PARTICLE INTERACTIONS; PARTICLE PRODUCTION; PION-NUCLEON INTERACTIONS; PION-PROTON INTERACTIONS; SPECTRA