A study of non-charge-exchange production in the reaction at 4.2 GeV/c

Authors :: H.G.J.M. Tiecke
G. G.G. Massaro
S. Yamashita
H. Voorthuis
S-O. Holmgren
L. McDowell
Louis Lyons
R.J. Hemingway
B. Jongejans
J.J. Engelen
E.W. Kittel
Joris S. M. Vergeest
P. Grossmann
M.J. Losty
M.J. Holwerda
Source :: Nuclear Physics B. 134:14-30
Publication Year :: 1978
Publisher :: Elsevier BV, 1978.
Abstract: The Kπ− system produced in the reaction Kp → K0π−p at 4.2 GeV/c is studied using high-statistics bubble-chamber data. The spin-parity structure is analysed as a function of the K0π− mass up to 1.52 GeV. Production of K∗(890) and K∗(1420) is observed in helicity-0 and helicity-1 states. Contributions of natural and unnatural parity exchange are present. Considerable S-wave production is observed over the whole mass region considered. We also study the t′ dependence of the K∗(890) and K∗(1420) amplitudes. A comparison of our results on K∗(890) production with the results of an analysis of charge-exchange K∗(890) production, allows the separation of I = 0 and I = 1 exchange amplitudes. Some qualitative remarks are made concerning K∗(1420) production.