Evidence for the Existence of a $Z^{*}$

16 March 1970

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

Vol. 24 (11) , 615-618
https://doi.org/10.1103/physrevlett.24.615

Abstract

Results of a phase-shift analysis with and without the use of a Regge-pole model in

K^{+} p

elastic scattering from 0.86 to 1.95 GeV/c are described. We have obtained four possible solutions, all of which indicate resonantlike behavior in one partial-wave amplitude. Three of our solutions yield a

P_{\frac{3}{2}}

partial wave with a behavior consistent with the Breit-Wigner resonance formula. The properties of such a

Z^{*}

resonance are described.

Keywords

This publication has 9 references indexed in Scilit:

Polarization in elastic K+p scattering between 0.86 GeVc and 1.45 GeVc: Results and phase-shift analysis
Physics Letters B, 1969
Split Peaks and Exotic Resonances
Physical Review Letters, 1969
Measurement of Polarization in $K^{+} p$ Elastic Scattering at 1.37, 1.45, 1.71, and 1.89 GeV/cand Phase-Shift Analysis
Physical Review Letters, 1969
Regge-Pole Eikonal Theory of Small-Angle Kaon-Nucleon Scattering
Physical Review B, 1969
Regge-pole models for kaon-nucleon scattering
Nuclear Physics B, 1969
Inelastic Processes Near the $T = 1$ $K^{+} p$ Peak at 1250 MeV/c
Physical Review Letters, 1967
Phase shift analysis of K+p elastic scattering at 780 MeV/c
Physics Letters B, 1967
New Structure in the $K^{+} - p$ and $K^{+} - d$ Total Cross Sections Between 0.9 and 2.4 GeV/c
Physical Review Letters, 1966
$K^{+} - p$ Interaction From 140 to 642 MeV/c
Physical Review Letters, 1962

Evidence for the Existence of aZ*

Abstract

Keywords

Evidence for the Existence of a $Z^{*}$