$ϕ$ -Meson Production in the Reactions $π^{\pm} N \to K^{-} K^{+} N$ at 6 GeV/c

Publisher Website

7 February 1977

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 38 (6) , 269-272
https://doi.org/10.1103/physrevlett.38.269

Abstract

A sample of 1200

ϕ

mesons produced in the Zweig-rule-forbidden reactions

π^{\pm} N \to ϕ N

shows a flat

t

distribution (slope=1.7 ± 0.2 Ge

V^{- 2}

) and a cross section suppressed by 0.0032±0.0004 relative to

π^{-} p \to ω n

. Natural-parity-exchange

ω

and

ϕ

production have similar

t

dependences, while

ω

and

ϕ

production by unnatural-parity exchange differ markedly. Interference between the

ϕ

and the underlying

\bar{K} K

S

wave indicates substantial nucleon-spin incoherence between the amplitudes for

ϕ

and

S

-wave production.

Keywords

This publication has 14 references indexed in Scilit:

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