STUDY OF PHI AND F'(2)(1525) MESON PRODUCTION IN (P)OVER-BAR-P ANNIHILATION AT REST

The reaction (p) over bar p --> K+K- pi(0) was analysed for antiproton annihilations at rest at three hydrogen target densities. A strong de pendence of the (p) over bar p --> phi pi(0) yield on the quantum numb ers of the initial state is observed. The branching ratio of the phi p i(0) channel from the S-3(1) initial state is more than 15 times large r than the one from the P-1(1) state. A large apparent violation of th e OZI rule for tensor meson production from (p) over bar p-annihilatio ns from the P-waves (1(++) + 2(++)) is observed: R-exp(f(2)'pi(0)/f(2) pi(0)) = (149 +/- 20) . 10(-3), significantly exceeding the OZI-rule p rediction R = 16 . 10(-3). (C) 1998 Elsevier Science B.V. All rights r eserved.