A Measurement of the $D^{\ast \pm }$ Cross Section in Two-Photon Processes

Abstract

We have measured the inclusive $D^{\ast \pm }$ production cross section in a two-photon collision at the TRISTAN $e^{+}{e}^{-}$ collider. The mean $\sqrt{s}$ of the collider was 57.16 GeV and the integrated luminosity was 150 $p{b}^{-1}$. The differential cross section ($d\sigma (D^{\ast \pm })/d{P}_T$) was obtained in the $P_T$ range between 1.6 and 6.6 GeV and compared with theoretical predictions, such as those involving direct and resolved photon processes.

8 pages, Latex format (article), figures corrected, published in Phys. Rev. D 50 (1994) 1879

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