Progress report of a research program in experimental high energy physics, 1 January-31 December 1984

Technical Report · Sun Jul 01 04:00:00 EDT 1984

OSTI ID:6650886

Widgoff, M

An experimental program to study the interactions of hadrons, photons, and neutrinos is being carried out using hybrid systems which include bubble chambers as visible targets and counter spectrometers for particle detection, identification, and momentum measurements. Experiments have been run in both positive and negative hadron beams at Fermilab, and with polarized photons at SLAC. Experiments with neutrino beams at Tevatron II at Fermilab are in preparation. We have been analyzing the film and counter data of our one-million-picture exposure for the study of ..pi..+-, K/sup +/ and p interations in hydrogen and magnesium, silver and gold, at a beam momentum of 200 GeV/c, as well as continuing the physics analysis of our earlier FNAL experiments on ..pi../sup +/p, K/sup +/ p, and pp interactions at 147 GeV/c. During the past year analysis has continued on the data of SLAC experiments studying the interactions in hydrogen of 20 GeV polarized photons. Results have been obtained on photoproduction of charm and on the lifetimes of charmed particles, and on vector meson and strange particle production. Inclusive ..gamma..p interactions are being studied in detail in this high statistics sample. Another experiment, was run at 10.5 GeV, to search for evidence of a predicted threshold enhancement in the charm photoproduction cross section. Preparations are in progress for neutrino interaction studies at Tevatron II. An experiment will run starting early in 1985 in the wide band neutrino beam with hybrid system designed for the tau neutrino search to be run with the beam dump.

• Research Organization: Brown Univ., Providence, RI (USA)
• DOE Contract Number: AC02-76ER03130
• OSTI ID: 6650886
• Report Number(s): DOE/ER/03130-258; COO-3130TB-258; ON: DE84013718
• Country of Publication: United States
• Language: English

Related Subjects

645100* -- High Energy Physics-- Particle Interactions & Properties-Experimental
645101 -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Electromagnetic Interactions & Properties
645102 -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Weak Interactions & 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
BASIC INTERACTIONS
BEAM DUMPS
BEAMS
BOSONS
BUBBLE CHAMBERS
CHARGED-PARTICLE REACTIONS
CHARM PARTICLES
CYCLIC ACCELERATORS
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
GAS TRACK DETECTORS
HADRON REACTIONS
HADRON-HADRON INTERACTIONS
HADRONS
HIGH ENERGY PHYSICS
INTERACTIONS
KAON PLUS REACTIONS
KAON REACTIONS
KAON-NUCLEON INTERACTIONS
KAON-PROTON INTERACTIONS
LEPTON REACTIONS
LEPTON-BARYON INTERACTIONS
LEPTON-HADRON INTERACTIONS
LEPTON-NUCLEON INTERACTIONS
MASSLESS PARTICLES
MEASURING INSTRUMENTS
MESON REACTIONS
MESON RESONANCES
MESON-BARYON INTERACTIONS
MESON-NUCLEON INTERACTIONS
MESONS
NEUTRINO REACTIONS
NEUTRINO-NUCLEON INTERACTIONS
NUCLEAR REACTIONS
NUCLEON REACTIONS
NUCLEON-NUCLEON INTERACTIONS
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PHOTON-BARYON INTERACTIONS
PHOTON-HADRON INTERACTIONS
PHOTON-NUCLEON INTERACTIONS
PHOTON-PROTON INTERACTIONS
PHOTONS
PHOTOPRODUCTION
PHYSICS
PION MINUS REACTIONS
PION PLUS REACTIONS
PION REACTIONS
PION-NUCLEON INTERACTIONS
PION-PROTON INTERACTIONS
POLARIZED BEAMS
POSTULATED PARTICLES
PROTON REACTIONS
PROTON-NUCLEON INTERACTIONS
PROTON-PROTON INTERACTIONS
RADIATION DETECTORS
RESEARCH PROGRAMS
RESONANCE PARTICLES
SPECTROMETERS
STRANGE PARTICLES
SYNCHROTRONS
TEVATRON
VECTOR MESONS