Precise determination of the eta_c mass and width in the radiative J/Psi -> eta_c gamma decay

Abstract

We present an effective field theory based extraction of the eta_c mass and width from a recent measurement by CLEO of the photon line shape in J/Psi -> eta_c gamma decay.

3 pages, 3 figures, contribution to 'Quark Confinement and the Hadron Spectrum IX', Univ. Complutense de Madrid, August 30th-September 3rd, 2010

References in corpus (1)

• Heavy quarkonium: progress, puzzles, and opportunities

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