Muon scattering into 1 to 5 muon final states. [90 to 209 MeV]
Interactions of 209- and 90-GeV muons within a magnetized-steel calorimeter have produced final states containing one, two, three, four, and five muons. Redundant systems of proportional and drift chambers, fully sensitive in the forward direction, maintained 9% dimuon-mass resolution and high acceptance for multimuon final states. The first data are presented on F/sub 2/(x, Q/sup 2/) from charged lepton-nucleon scattering spanning a range in ln (ln, Q/sup 2/) comparable to that measured in high energy neutrino scattering. The muon data confirm the decrease of F/sub 2/ with rising Q/sup 2/ in the region 0.2 < x < 0.6, in agreement with QCD expectations. From >80% of the world sample of fully-reconstructed 3..mu.. final states containing the J/psi(3100), the first determination of the psi polarization yields sigma/sub L//sigma/sub T/ = xi/sup 2/Q/sup 2//m/sub psi//sup 2/ with xi/sup 2/ = 4.0/sub -2.1//sup +5/ /sup 4/, 2.6 standard deviations above the vector-dominance expectation. A sample of 35539 two-muon final states contains a small excess of high p/sub perpendicular to/ high-Q/sup 2/ same-sign pairs and sets limits on neutral heavy lepton production by right-handed currents. Two five-muon final states are observed, of which only one is the likely result of a pure QED process. A single event with four muons in the final state is interpreted as diffractive b anti b production with anti b ..-->.. psiX ..-->.. ..mu../sup +/..mu../sup -/X and b ..-->.. ..mu../sup -/anti ..nu../sub ..mu../X. 42 references.
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Princeton Univ., NJ (USA). Joseph Henry Labs.
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 5754764
- Report Number(s):
- LBL-9912; CONF-790885-3; TRN: 80-000393
- Resource Relation:
- Conference: 9. international symposium on lepton and photon interactions at high energy, Batavia, IL, USA, 23 Aug 1979
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
MUON-NUCLEON INTERACTIONS
FINAL-STATE INTERACTIONS
INCLUSIVE INTERACTIONS
MUONS
MULTIPLE PRODUCTION
BEAUTY PARTICLES
CROSS SECTIONS
DIFFRACTION MODELS
ENERGY DEPENDENCE
EXPERIMENTAL DATA
GEV RANGE 10-100
GEV RANGE 100-1000
GRAPHS
POLARIZATION
PSI-3105 RESONANCES
QUANTUM ELECTRODYNAMICS
TRANSVERSE MOMENTUM
BOSONS
DATA
DATA FORMS
ELECTRODYNAMICS
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
FIELD THEORIES
GEV RANGE
HADRONS
INFORMATION
INTERACTIONS
LEPTON-BARYON INTERACTIONS
LEPTON-HADRON INTERACTIONS
LEPTON-NUCLEON INTERACTIONS
LEPTONS
LINEAR MOMENTUM
MATHEMATICAL MODELS
MESON RESONANCES
MESONS
NUMERICAL DATA
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PRODUCTION
POSTULATED PARTICLES
PSI RESONANCES
QUANTUM FIELD THEORY
RESONANCE PARTICLES
VECTOR MESONS
645101* - High Energy Physics- Particle Interactions & Properties-Experimental- Electromagnetic Interactions & Properties