Polarized-Photon Asymmetries in $K^{+}$ Photoproduction at 16 GeV

Publisher Website

3 March 1975

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

Vol. 34 (9) , 543-546
https://doi.org/10.1103/physrevlett.34.543

Abstract

Using a 16-GeV linearly polarized photon beam, we have measured asymmetries in the process

γ N \to K^{+} (Λ + Σ)

from hydrogen and deuterium, for square of four-momentum transfer,

t

, between -0.01 and -0.8

{(G e V / c)}^{2}

. The data show that for

- t ≳ 0.1

{(G e V / c)}^{2}

, the cross sections for

γ p \to K^{+} Λ

,

γ p \to K^{+} Σ^{0}

, and

γ n \to K^{+} Σ^{-}

are strongly dominated by natural-parity exchange, as is the case in single-pion photoproduction.

Keywords

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