Study of two-jet events at. sqrt. s = 62 GeV using a total neutral energy trigger

Conference · Fri Jul 01 04:00:00 EDT 1983

OSTI ID:5547967

Angelis, A L.S.; Basini, G; Besch, H J; Breedon, R E; Camilleri, L; Chapin, T J; Cool, R L; Cox, P T; von Gagern, C; Grosso-Pilcher, C

Using a full azimuth electromagnetic calorimeter we have measured the spectrum dN/dE/sub T//sup 0/, E/sub T//sup 0/ = neutral transverse energy, in pp collisions at ..sqrt..s = 62 GeV over the E/sub T//sup 0/ range from 10 to 35 GeV. Charged particles were measured in a system of drift chambers located in a magnetic field and covering the same acceptance. Two-jet events become an increasingly dominant component of the data as E/sub T//sup 0/ increases above 20 GeV, as can be seen from the decrease in mean sphericity of the events. We discuss the fragmentation of the jets in terms of j/sub T, the transverse momentum perpendicular to the jet direction. We compare the mean P/sub T/ of the dijet system to that in ..pi../sup 0/..pi../sup 0/ and hadronic e/sup +/e/sup -/ events at the same ..sqrt..s.

• Research Organization: Rockefeller Univ., New York (USA)
• DOE Contract Number: AC02-81ER40033
• OSTI ID: 5547967
• Report Number(s): DOE/ER/40033-50; CONF-830718-9; ON: DE83016326
• Country of Publication: United States
• Language: English

Related Subjects

645103* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Strong Interactions & Baryon & Meson Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR DISTRIBUTION
BARYON-BARYON INTERACTIONS
BOSONS
DISTRIBUTION
DRIFT CHAMBERS
ELECTRON PAIRS
ELEMENTARY PARTICLES
ENERGY RANGE
GEV RANGE
GEV RANGE 10-100
HADRON-HADRON INTERACTIONS
HADRONS
HYPOTHESIS
INTERACTIONS
JET MODEL
LIMITING FRAGMENTATION
LINEAR MOMENTUM
LUMINOSITY
MATHEMATICAL MODELS
MEASURING INSTRUMENTS
MESONS
MULTIPLE PRODUCTION
MULTIWIRE PROPORTIONAL CHAMBERS
NUCLEON-NUCLEON INTERACTIONS
OPTICAL PROPERTIES
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PRODUCTION
PHYSICAL PROPERTIES
PIONS
PIONS NEUTRAL
PROPORTIONAL COUNTERS
PROTON-NUCLEON INTERACTIONS
PROTON-PROTON INTERACTIONS
PSEUDOSCALAR MESONS
RADIATION DETECTORS
SHOWER COUNTERS
TRANSVERSE MOMENTUM