PION PRODUCTION IN CENTRAL HIGH-ENERGY NUCLEAR COLLISIONS

Cugnon, J.; Kinet, D.; Vandermeulen, J.

doi:10.1016/0375-9474(82)90014-8

PION PRODUCTION IN CENTRAL HIGH-ENERGY NUCLEAR COLLISIONS

1982

15 pages

Published in:

Nucl.Phys.A 379 (1982) 553-567

Published: 1982

DOI:

10.1016/0375-9474(82)90014-8

reference search154 citations

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Abstract: (Elsevier)

A model for pion production is studied in the context of a cascade calculation. The pions are produced through Δ-resonances which are allowed to decay. The emitted pions are assumed to interact with the other nucleons by forming new Δ -resonances. The time evolution of the pion and Δ-population is studied; it is found that Δs are always more numerous than pions during the sequence of baryon-baryon collisions. The spectrum of the pions is in considerably better agreement with experiment than the one obtained with frozen Δ-isobars. The presence of Δ-resonances appears to be important for the cooling of the pion system. The pion multiplicity is found to deviate from a Poisson distribution. The pion yield is overestimated by at least 25%; this result is discussed within the framework of conventional dynamics.

NUCLEUS NUCLEUS: NUCLEAR REACTION
NUCLEUS NUCLEUS: INCLUSIVE REACTION
CALCIUM
PI: HADROPRODUCTION
HADROPRODUCTION: PI
MODEL: CASCADE
MODEL: ISOBAR
DEPENDENCE: TIME
ENERGY SPECTRUM: (PI)
(PI): ENERGY SPECTRUM

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