Brandenburg, G.W.
K- P --> K1(1240-1400)- P
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Production Properties of Q Mesons in K+- p --> K+- pi+ pi- p at 13-GeV

Brandenburg, G.W. ; Carnegie, R.K. ; Cashmore, R.J. ; et al.
Phys.Rev.Lett. 36 (1976) 706, 1976.
Inspire Record 100755 DOI 10.17182/hepdata.21076

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.

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