Production Properties ofQMesons inK±p→K±π+π−pat 13 GeV
G. W. Brandenburg,R. K. Carnegie,R. J. Cashmore,M. Davier,W. M. Dunwoodie,T. A. Lasinski,D. W. G. S. Leith,J. A. J. Matthews,P. Walden,S. H. Williams,F. C. Winkelmann;G. W. Brandenburg;R. K. Carnegie;R. J. Cashmore;M. Davier;W. M. Dunwoodie;T. A. Lasinski;D. W. G. S. Leith;J. A. J. Matthews;P. Walden;S. H. Williams;F. C. Winkelmann;
physical review letters1976Vol. 36pp. 706-709
223
winkelmann1976physicalproduction
Abstract
The momentum transfer (t′) dependence of the JP=1+K*π and ρK partial waves in the K±π+π− system is presented. The production of the Q1 meson (m∼1300 MeV), which has a large ρK decay mode, obeys approximate s-channel helicity conservation. In contrast the production of the Q2 meson (m∼1400 MeV), which decays predominantly to K*π, satisfies approximate t-channel helicity conservation. Furthermore the Q1 production distributions are virtually identical, whereas the Q2± distributions exhibit a distinct cross-over for |t′|∼0.18 GeV2.