Observation of a Dip Due to $I = 0$ $t$ -Channel Exchange in the Reaction $π N \to A_{2} N$ at 4.5 and 6 GeV/c

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2 September 1974

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

Vol. 33 (10) , 603-606
https://doi.org/10.1103/physrevlett.33.603

Abstract

In the reaction

π^{-} p \to {A_{2}}^{-} p

, we observe a dip in the differential cross section at

t \approx 1.2

Ge

V^{2}

. Analysis in terms of

t

-channel contributions from isospin-0 and -1, natural- and unnatural-parity exchanges suggest that the dip is mainly due to natural-

\overset{`}{p}

arity,

I = 0

exchange.

Keywords

This publication has 8 references indexed in Scilit:

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Physical Review Letters, 1974
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