This paper presents measurements of K^0 and lambda production in neutral current, deep inelastic scattering of 26.7 GeV electrons and 820 GeV protons in the kinematic range 10 < Q^2 < 640 GeV^2, 0.0003 < x < 0.01, and y > 0.04. Average multiplicities for K^0 and lambda production are determined for transverse momenta P_T > 0.5 GeV and pseudorapidities |eta| < 1.3. The multiplicities favour a stronger strange to light quark suppression in the fragmentation chain than found in e+e - experiments. The production properties of K^0 in events with and without a large rapidity gap with respect to the proton direction are compared. The ratio of neutral K^0 to charged particles per event in the measured kinematic range is, within the present statistics, the same in both samples.
Neutral strange particle production in deep inelastic scattering at HERA
ANZIVINO, Giuseppina
1995
Abstract
This paper presents measurements of K^0 and lambda production in neutral current, deep inelastic scattering of 26.7 GeV electrons and 820 GeV protons in the kinematic range 10 < Q^2 < 640 GeV^2, 0.0003 < x < 0.01, and y > 0.04. Average multiplicities for K^0 and lambda production are determined for transverse momenta P_T > 0.5 GeV and pseudorapidities |eta| < 1.3. The multiplicities favour a stronger strange to light quark suppression in the fragmentation chain than found in e+e - experiments. The production properties of K^0 in events with and without a large rapidity gap with respect to the proton direction are compared. The ratio of neutral K^0 to charged particles per event in the measured kinematic range is, within the present statistics, the same in both samples.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
