Observation of <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msubsup><mrow><mi>A</mi></mrow><mrow><mn>1</mn></mrow><mrow><mo>+</mo><mo>,</mo><mn>0</mn><mn></mn></mrow></msubsup></mrow></math> Production in <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow><mi>K</mi></mrow><mrow><mo>+</mo></mrow></msup></mrow><mi>p</mi></math> Interactions at 12.7 GeV/c

J. C. Berlinghieri; M. S. Farber; T. Ferbel; R. Holmes; P. F. Slattery; S. Stone; H. Yuta

doi:10.1103/PhysRevLett.23.42

Observation of $A_{1}^{+, 0}$ Production in $K^{+} p$ Interactions at 12.7 GeV/c

J. C. Berlinghieri, M. S. Farber, T. Ferbel, R. Holmes, P. F. Slattery, S. Stone, and H. Yuta

Phys. Rev. Lett. 23, 42 – Published 7 July 1969

Abstract

We observed statistically significant peaks in the charged and neutral three-pion mass spectra at the position of the $A_{1}$ in the reactions $K^{+} p \to K^{0, +} p π^{+} π^{-} π^{+, 0}$ at 12.7 GeV/c. We discuss the possible interpretation of these peaks.