K∗ production in K+n → KπN at 8.25 GeV/c
1976; Elsevier BV; Volume: 112; Issue: 2 Linguagem: Inglês
10.1016/0550-3213(76)90530-7
ISSN1873-1562
AutoresKevin Hendrickx, P. Cornet, F. Grard, V.P. Henri, R. Windmolders, D. Vignaud, D. Burlaud, S. Tavernier,
Tópico(s)High-Energy Particle Collisions Research
ResumoReactions K+n → (Kπ)N have been studied using data from the CERN 2 m deuterium bubble chamber obtained with incident K+ of 8.25 GeV/c. There is an abundant production of K∗(892) and K∗(1420). The reaction and K∗ resonance production cross sections are presented. K∗ production and decay angular distributions are analyzed. Charge-exchange reactions are dominated by unnatural parity exchange and the non-charge-exchange reaction by natural parity exchange. The K∗0(892) data are in good agreement with the predictions of an OPE absorption model. A broad enhancement around 1850 MeV could be interpreted as a signal for the K∗0(1780).
Referência(s)