Study of <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow><mi>K</mi></mrow><mrow><mo>+</mo></mrow></msup></mrow></math> Forward Scattering from the Reaction <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow><mi>π</mi></mrow><mrow><mo>−</mo></mrow></msup></mrow><mi>p</mi><mo>→</mo><mrow><msup><mrow><mi>K</mi></mrow><mrow><mo>+</mo></mrow></msup></mrow><mi>Σ</mi><mrow><msup><mrow><mn></mn><mo>(</mo><mn>1385</mn><mo>)</mo><mn></mn></mrow><mrow><mo>−</mo></mrow></msup></mrow></math> at 4.5 and 6 <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mfrac><mrow><mi mathvariant="normal">GeV</mi></mrow><mrow><mi>c</mi></mrow></mfrac></math>

David J. Crennell; Howard A. Gordon; Kwan-Wu Lai; James Louie; J. Michael Scarr; W. H. Sims

doi:10.1103/PhysRevLett.26.1280

Study of $K^{+}$ Forward Scattering from the Reaction $π^{-} p \to K^{+} Σ {(1385)}^{-}$ at 4.5 and 6 $\frac{GeV}{c}$

David J. Crennell, Howard A. Gordon, Kwan-Wu Lai, James Louie, J. Michael Scarr, and W. H. Sims

Phys. Rev. Lett. 26, 1280 – Published 17 May 1971

Abstract

Experimental data are presented for the forward scattering of $K^{+}$ from the reaction $π^{-} p \to K^{+} Σ {(1385)}^{-}$ . This "forbidden" peripheral scattering can not be explained by any simple kinematic effects in the $Λ K^{+} π^{-}$ final state. $s$ -channel resonances, two-particle exchange, or a single "exotic"-meson exchange in the $t$ channel are examined as possible explanations of this effect.