Search for the Decayη→π0+e++e−

Publisher Website

25 February 1966

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

Vol. 142 (4) , 893-895
https://doi.org/10.1103/physrev.142.893

Abstract

A search has been made for the decay

η \to π^{0} + e^{+} + e^{-}

, which should be very rare if

C

is conserved in strong and electromagnetic interactions. We have found no events consistent with this decay in a sample of

η

produced in the reaction

K^{-} + p \to Λ + η

. The upper limit for this decay, at the 90% confidence level, is

R = \frac{(η \to π^{0} + e^{+} + e^{-})}{(η \to γ + γ)} < 0.047

.

Keywords

SEARCH FOR THE DECAY

This publication has 12 references indexed in Scilit:

Observation of a Peak in $K^{-} + p \to Λ + η$ Near Threshold
Physical Review Letters, 1965
Data on Particles and Resonant States
Reviews of Modern Physics, 1965
Possible $C$ , $T$ Noninvariance in the Electromagnetic Interaction
Physical Review B, 1965
The η → π+ π0 π− decay with C - violation
Physics Letters, 1965
Is Charge-Conjugation Invariance Badly Broken?
Physical Review Letters, 1965
Analysis of $CP$ -Noninvariant Interactions and the $K_{1}^{0}$ , $K_{2}^{0}$ System
Physical Review B, 1965
$C$ -Invariance Violation in Strong and Weak Interactions
Physical Review Letters, 1965
X°-η Miximg and Some Radiative Mesen Decay Process
Il Nuovo Cimento (1869-1876), 1965
Possibility of CP violation in semi-strong interactions
Physics Letters, 1965
Evidence for the $2 π$ Decay of the $K_{2}^{0}$ Meson
Physical Review Letters, 1964