TY - RPRT
TI - Study of the hadronic final state in the deep inelastic muon-nucleon scattering; Studium des hadronischen Endzustandes in der tiefinelastischen Myon Nukleon Streuung
AB - This thesis presents data about the final state of identified hadrons produced in deep inelastic {mu}-hydrogen and {mu}-deuterium scattering at an incident beam energy of 280 GeV. The centre-of-mass energy is within the range of 4 to 20 GeV with a mean value of about 12 GeV. The fragmentation of the struck quark and the target rest into identified hadrons {pi}{sup {+-}}, K{sup {+-}}, p{sup {+-}}, Q{sup 0} and K{sup *0} + anti K{sup *0} is studied. The mean multiplicities vary as a function of W{sup 2}. For constant W{sup 2} the data gives no evidence of a Q{sup 2} dependence of the mean multiplicities except the Q{sup 2} dependence of the parton distributions. A difference between the predictions of the Lund model and the data is observed with respect to the mean multiplicities if the standard parameter set is used in the model. Semi-inclusive distributions are shown in the variables X{sub F} and mean P{sub T}{sup 2}. It is impossible to describe the mean value of P{sub T}{sup 2} as found in the data by the LUND model without inclusion of soft gluons the model. Favored and unfavored fragmentation functions of identified pions are calculated. The X{sub F} distribution shows that the disagreement between data and LUND model for the average multiplicities is concentrated in the central X{sub F} region and may be due to an overestimation of the multiplicities of unstable hadrons like Q, K{sup *} and others in the model. The data gives no evidence that the vectormesons Q{sup 0} and K{sup *0}+anti K {sup *0} are produced in a favoured helicity state. The probability of vektormesonproduction {xi}v (Q,{pi}) and {xi}v (K{sup *}, K) is calculated from the semi-inclusive multiplicities and found to be 0.5 {+-} 0.1 (stat). Finally the results of this work are compared to those of several {nu}(anti {nu})p and e{sup +}e{sup -} experiments. (orig.).
AU - Lauterjung, D
KW - 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
KW - 73 NUCLEAR PHYSICS AND RADIATION PHYSICS
KW - DEUTERIUM TARGET
KW - MUON REACTIONS
KW - DEEP INELASTIC SCATTERING
KW - SEMI-INCLUSIVE INTERACTIONS
KW - MUON-PROTON INTERACTIONS
KW - RELATIVISTIC RANGE
KW - EXPERIMENTAL DATA
KW - GEV RANGE 100-1000
KW - MULTIPLICITY
KW - ANTIPROTONS
KW - KAONS MINUS
KW - PI-1300 MESONS
KW - KAONS PLUS
KW - PIONS MINUS
KW - PIONS PLUS
KW - K -892 MESONS
KW - RHO-770 MESONS
KW - QUARKS
KW - LIMITING FRAGMENTATION
KW - MULTIPLE PRODUCTION
KW - HELICITY
KW - TRANSVERSE MOMENTUM
KW - JET MODEL
KW - 662340
KW - 663460
KW - HADRON INTERACTIONS
KW - MESON- AND HYPERON-INDUCED REACTIONS AND SCATTERING
DO -
UR -
PB -
CY - Germany
PY - 1990
DA - 1990-08-01
LA - German
J2 -
C1 - Wuppertal Univ. (Gesamthochschule) (Germany). Fachbereich 8 - Naturwissenschaften 1 - Physik
C2 -
ER -