$\phi$ and $\omega$ meson production in $pp$ reactions at $p_\text{lab} = 3.67\,\text{GeV}/c$

. After phase space corrections, this ratio is enhanced by about an order of magnitude relative to naive predictions based upon the Okubo-Zweig-Iizuka (OZI) rule, in comparison to an enhancement by a factor

\sim 3

previously observed at higher beam momenta. The modest increase of this enhancement near the production threshold is compared to the much larger increase of the

\phi/\omega

ratio observed in specific channels of

\bar pp

annihilation experiments. Furthermore, differential cross section results are also presented which indicate that although the

\phi

meson is predominantly produced from a

^3P_1

proton-proton entrance channel, other partial waves contribute significantly to the production mechanism at this beam momentum.

Note:

Revtex 49 pages, 11 figures, Phys Rev C in print

p p: exclusive reaction
rho(770): hadroproduction
omega(783): hadroproduction
channel cross section: ratio
angular distribution
differential cross section: momentum dependence
correction: phase space
Iizuka-Okubo-Zweig rule
magnetic spectrometer: experimental results
Saclay PS

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ϕ\phiϕ and ω\omegaω meson production in pppppp reactions at plab=3.67 GeV/cp_\text{lab} = 3.67\,\text{GeV}/cplab​=3.67GeV/c

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$\phi$ and $\omega$ meson production in $pp$ reactions at $p_\text{lab} = 3.67\,\text{GeV}/c$