Continuum Charged $D^{*}$ Spin Alignment at $sqrt{s}$ = 10.5 GeV

TL;DR

This paper reports a measurement of the spin alignment of charged D^* mesons produced in electron-positron collisions at 10.5 GeV, finding little evidence of any significant alignment.

Contribution

First measurement of D^* meson spin alignment in continuum e^+ e^- collisions at this energy.

Findings

No significant D^* spin alignment observed

Analysis based on 4.72 fb^{-1} of CLEO II data

Results suggest isotropic spin distribution

Abstract

A measurement of the spin alignment of charged D^* mesons produced in continuum e^+ e^- \to c \bar{c} events at \sqrt{s}=10.5 GeV is presented. This study using 4.72 fb^{-1} of CLEO II data shows that there is little evidence of any D^* spin alignment.