A Spin-parity Analysis Of The Reaction Antiproton Proton Going To Positive Pion Negative Pion Neutral Pion Omega Meson (proton, Antiproton, Pion, Omega Meson)

An analysis of the reaction <math> <f> <ovl>p</ovl>p&rarr; <g>p</g >⁺<g>p</g>^-<g>p</g>^<rm>o</rm><g>w</g ></f> </math> is presented. The annihilations took place at rest in liquid hydrogen. This measurement finds that <math> <f> <g>p</g><sup >+</sup><g>p</g>^-<g>p</g>^<rm>o</rm><g>w</g></f> </math> is produced in 16.1 &plusmn; 1.0565544f such annihilations. A prominent signal of <math> <f> <ovl>p</ovl>p&rarr; <g>w</g><g>w</g></f > </math> is observed. The rate for this process was measured using a technique which is practically background free; the measured rate is <math> <f> BR<fen lp="par"><ovl>p</ovl>p&rarr; <g>w</g><g>w</g><rp post="par"></fen> =3.23&plusmn; 0.25&percnt; .</f> </math> This rate is important in calculations concerning <math> <f> <ovl>p</ovl>p</f> < /math> annihilation dynamics. A partial wave analysis was also performed. New results include possible observation of &omega; &pi; &pi; decay modes for the <italic>a</italic>₁(1260), <italic >h</italic>₁(1170) and <italic>a</italic>₁(1700) . These results need confirmation. Also, the <italic>b</italic><sub>1< /sub>&pi; decay mode of the &omega; (1600) is found to be stronger than the &omega; (&pi; &pi; )s decay mode: <math> <f> BR<fen lp="par "><g>w</g><fen lp="par">1600<rp post="par"></fen> &rarr; b<inf>1</inf ><g>p</g><rp post="par"></fen>/BR<fen lp="par"> <g>w</g><fen lp="par ">1600<rp post="par"></fen>&rarr; <g>w</g> <fen lp="par"><g>p</g><g>p< /g><rp post="par"></fen><inf>s</inf> <rp post="par"></fen>=1.6&plusmn; 0.2.</f> </math>.