Reaction $π^{-} p \to γ γ n$ at 3.65 $\frac{GeV}{c}$

Publisher Website

27 September 1971

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

Vol. 27 (13) , 885-888
https://doi.org/10.1103/physrevlett.27.885

Abstract

New results are presented for the reactions

π^{-} p \to m^{0} n

at 3.65

\frac{GeV}{c}

, where

m^{0}

represents

η

or

η^{'}

decaying to

γ γ

. We have seen 31

η^{'}

events over a small background, leading to a branching ratio

\frac{(η^{'} \to γ γ)}{(η^{'} \to all)} = {0.020}_{- 0.006}^{+ 0.008}

. Over 2000

η

events were observed, and the differential cross section exhibits a dip at —

t = 1.5 {(\frac{GeV}{c})}^{2}

.

Keywords

This publication has 8 references indexed in Scilit:

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Physical Review Letters, 1971
Reaction $π^{+} p \to η^{0} Δ^{+ +}$ : A Test of $A_{2}$ Regge-Pole Exchange
Physical Review Letters, 1971
Evidence for the Existence of a New Meson in the 955-MeV Mass Region
Physical Review Letters, 1970
On the chiral transformation properties of the pseudoscalar-vector-vector interaction
Lettere al Nuovo Cimento (1971-1985), 1970
Regge trajectory from π− + p → ηo + n data
Physics Letters, 1965
Evidence for a singly charged boson of mass 962 MeV and narrow width
Physics Letters, 1965
The reaction π− p → η n between 3 and 18 GeV/c
Physics Letters, 1965
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