Existence of a <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi>Y</mi></mrow><mrow><mn>1</mn></mrow><mrow></mrow><mrow></mrow><mrow><mo>*</mo></mrow></mmultiscripts></mrow></math></span> Resonance at 1616 MeV

David J. Crennell; William C. Delaney; Enzo Flaminio; Uri Karshon; Kwan Wu Lai; Wesley J. Metzger; John S. O'Neall; J. Michael Scarr; Alan M. Thorndike; Philip Baumel; Robert M. Lea; Alexander Montwill; Thomas G. Schumann

doi:10.1103/PhysRevLett.21.648

Existence of a $Y_{1}^{*}$ Resonance at 1616 MeV

David J. Crennell, William C. Delaney, Enzo Flaminio, Uri Karshon, Kwan Wu Lai, Wesley J. Metzger, John S. O'Neall, J. Michael Scarr, Alan M. Thorndike, Philip Baumel, Robert M. Lea, Alexander Montwill, and Thomas G. Schumann

Phys. Rev. Lett. 21, 648 – Published 26 August 1968

Abstract

An enhancement at 1616 ± 8 MeV is observed in the $Λ π^{\pm}$ mass spectrum from the reaction $K^{-} n \to Λ π^{-} π^{-} π^{+}$ at a beam momentum of 3.9 GeV/c. This is interpreted as a resonance of width 66 ± 16 MeV and isospin one. A similar enhancement is also observed in other final states.