ISSN:
1434-6052
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Physik
Notizen:
Abstract Inclusive charged pion production is studied in an exposure of BEBC, filled with hydrogen, to an incidentK + beam of 70 GeV/c. Total cross sections for pion production and inclusive longitudinal and transverse momentum distributions of π−'s and of positive particles are presented and compared with data at lower energies. Earlier evidence for scaling in the fragmentation regions is confirmed. The central region π− cross section increases proportionally top LAB −1/4 ; positive particles show almost no energy dependence atx=0. Particle ratios π+/π− are studied as a function ofx andy * and a comparison with 70 GeV/cK − p data is made. Analysis of structure functions for (ππ) pairs and of particle production associated with π± triggers at large |x| in the context of quark/parton models, provides qualitative evidence for the diquark-quark structure of the proton.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF01436305
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