Inclusive meson resonance production and fragmentation of u-quark jets ad diquarks in high energy neutrino-deuterium interactions

Thesis/Dissertation · Fri Jan 01 04:00:00 EST 1982

OSTI ID:5596401

Chang, C C

Inclusive neutrino-nucleon charged current interactions are studied in the neutrino energies ranging from 10 to 250 GeV with an average approx. 50 GeV. Inclusive rates for rho/sup 0/, ..omega../sup 0/, phi, eta/sup 0/, and K/sup*+-/(890) production in hadronic systems excited via high energy nu/sub mu/D/sub 2/ charged current interactions have been determined using 7599 events recorded in the FNAL 15-foot diameter bubble chamber. In interactions from valence quarks(X/sub BJ/ > 0.2) having hadronic energy W > 4 GeV, tracks forward in the hadronic CM are taken to be remnants of fragmenting u-quark jets. For mesons II (K/sup 0/+anti K/sup 0/), and (..pi../sup + -/+K/sup + -/) in the jets, fragmentation functions D/sub u//sup h/(z*) are measured in terms of hadronic CM energy fraction z* = 2E/sup */W. Comparison of ..pi../sup +/..pi../sup -/ invariant mass in jets to the inclusive dipion spectrum is used to illuminate the role of ..omega../sup 0/, eta/sup 0/, and possible higher mass mesons in u-quark fragmentation. Differences between these results and expectations of ''standard'' Field-Feynman fragmentation with jet energies = 3.24 GeV are found, which, however, can be minimized by tuning of the parameter gamma, ..cap alpha../sub ps/, and ..cap alpha../sub v/ in the model. Possible shortcomings of the model are discussed. We have also studied LAMBDA/sup 0/ production in the target region from nu n and nu p interactions. Y*+ production by studying the LAMBDA ..pi../sup +/ invariant mass distribution.

• Research Organization: Tufts Univ., Medford, MA (USA)
• OSTI ID: 5596401
• Country of Publication: United States
• Language: English

Related Subjects

645102* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Weak Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ACCELERATORS
BARYON RESONANCES
BARYONS
BOSONS
CHARGED-CURRENT INTERACTIONS
CYCLIC ACCELERATORS
DATA
DEUTERIUM TARGET
ELEMENTARY PARTICLES
ENERGY RANGE
ETA MESONS
EXOTIC RESONANCES
EXPERIMENTAL DATA
FERMILAB ACCELERATOR
FERMIONS
FRAGMENTATION
GEV RANGE
GEV RANGE 10-100
GEV RANGE 100-1000
HADRONS
HYPERONS
INCLUSIVE INTERACTIONS
INFORMATION
INTERACTIONS
JETS
K RESONANCES
K-892 RESONANCES
LAMBDA PARTICLES
LEPTON REACTIONS
LEPTON-BARYON INTERACTIONS
LEPTON-HADRON INTERACTIONS
LEPTON-NUCLEON INTERACTIONS
MESON RESONANCES
MESONS
NEUTRINO REACTIONS
NEUTRINO-NEUTRON INTERACTIONS
NEUTRINO-NUCLEON INTERACTIONS
NEUTRINO-PROTON INTERACTIONS
NUCLEAR REACTIONS
NUMERICAL DATA
OMEGA-784 RESONANCES
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PHI-1019 RESONANCES
PIONS
PSEUDOSCALAR MESONS
RESONANCE PARTICLES
RHO-1250 RESONANCES
SIGMA-1385 RESONANCES
SIGMA-1670 RESONANCES
STRANGE PARTICLES
SYNCHROTRONS
TARGETS
VECTOR MESONS
Y RESONANCES