Measurement of the high mass dimuon continuum produced in antiproton-nucleus collisions at 125 GeV/c
The preliminary results of measurements of the absolute differential cross sections in dimuon mass, Feynman x, and transverse momentum at 125 GeV/c for antiproton-nucleon interactions are presented. The data are for events on tungsten with M/sub ..mu mu../>4.0 GeV/c/sup 2/ and x/sub F/>0. The cross sections are tabulated and fit to empirical functions. Comparisions of the experimental cross sections are made to the predictions of the naive Drell-Yan model for this process. The K factor, defined as the ratio of the empirical cross section to the calculated Drell-Yan cross section, is measured and the value reported is 2.25 +/- .45 for anti p-N interactions. The K factor is compared to the results of other experiments and to QCD calculations of K to order ..cap alpha../sub s/. The results reported are from experiment E-537 performed in the High Intensity Laboratory in the proton area at Fermilab. This experiment was the first to make use of the unique antiproton enriched beam available in this area. The apparatus, consisting of a large aperture, forward spectrometer for detecting final state muons and a beam particle identification and momentum tagging system, is described in detail. The data analysis techniques used to extract the cross sections are discussed, with particular emphasis given to the track reconstruction procedure from drift chamber observations.
- Research Organization:
- Michigan Univ., Ann Arbor (USA)
- OSTI ID:
- 6961351
- Resource Relation:
- Other Information: Thesis (Ph. D.)
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ANTIPROTON REACTIONS
PAIR PRODUCTION
TUNGSTEN
CROSS SECTIONS
DATA PROCESSING
DRELL MODEL
EXPERIMENTAL DATA
FERMILAB ACCELERATOR
FEYNMAN DIAGRAM
GEV RANGE 100-1000
MUONS
SPECTROMETERS
TRANSVERSE MOMENTUM
ACCELERATORS
ANTINUCLEON REACTIONS
BARYON REACTIONS
CYCLIC ACCELERATORS
DATA
DIAGRAMS
ELEMENTARY PARTICLES
ELEMENTS
ENERGY RANGE
FERMIONS
GEV RANGE
HADRON REACTIONS
INFORMATION
INTERACTIONS
LEPTONS
LINEAR MOMENTUM
MEASURING INSTRUMENTS
METALS
NUCLEAR REACTIONS
NUCLEON REACTIONS
NUMERICAL DATA
PROCESSING
SYNCHROTRONS
TRANSITION ELEMENTS
645103* - High Energy Physics- Particle Interactions & Properties-Experimental- Strong Interactions & Baryon & Meson Properties