Published March 1976 | Version v1
Report Restricted

psi and excess leptons in photoproduction

Creators

Description

The A-dependence of psi photoproduction was measured on beryllium and tantalum. From this it is found sigma/sub psi N/ = 2.75 +- 0.90 mb. A study was made of excess leptons relative to pion production in photoproduction. A μ/π ratio of 1.40 +- 0.25 x 10-4 was found at 20 GeV incident photon energy. The energy dependence of psi photoproduction was determined and appeared to have a ''pseudo-threshold'' at 12 GeV

Availability note (English)

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

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Additional details

Additional titles

Augmented title (English)
A dependence, cross sections, preliminary report

Publishing Information

Imprint Pagination
8 p.
Report number
SLAC-PUB--1728

Conference

Title
Conference on particle searches and discoveries.
Dates
1 - 3 Mar 1976.
Place
Nashville, TN, USA.

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
9388160
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
BERYLLIUM 9 TARGET; CHARM PARTICLES; CROSS SECTIONS; ENERGY DEPENDENCE; GEV RANGE 10-100; LEPTONS; MASS; MUONS; PHOTONUCLEAR REACTIONS; PHOTOPRODUCTION; PIONS; PSI RESONANCES; TANTALUM 181 TARGET; THRESHOLD ENERGY
Descriptors DEC
BASIC INTERACTIONS; BOSONS; ELECTROMAGNETIC INTERACTIONS; ELEMENTARY PARTICLES; ENERGY; ENERGY RANGE; FERMIONS; GEV RANGE; HADRONS; INTERACTIONS; MESON RESONANCES; MESONS; NUCLEAR REACTIONS; PARTICLE INTERACTIONS; PARTICLE PRODUCTION; POSTULATED PARTICLES; PSEUDOSCALAR MESONS; RESONANCE PARTICLES; TARGETS

Optional Information

Secondary number(s)
CONF-760344--4.