Measurements of the γγ* → π0 and γγ →ηc transition form factors at BABAR

2010 Chinese Physical Society and the Institute of High Energy Physics of the Chinese Academy of Sciences and the Institute of Modern Physics of the Chinese Academy of Sciences and IOP Publishing Ltd
, , Citation V. P. Druzhinin 2010 Chinese Phys. C 34 816 DOI 10.1088/1674-1137/34/6/033

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1 Budker Institute of Nuclear Physics, Novosibirsk 630090, Russia

Dates

  1. Received 26 January 2010
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1674-1137/34/6/816

Abstract

We present measurements of the γγ* → π0 transition form factor for the momentum transfer range Q2 = 4–40 GeV2 and the γγ* → ηc transition form factor for the range Q2 = 2–50 GeV2. The current status of measurements of the meson-photon transition form factors for the η and η' mesons is discussed. The results of the measurement of the ηc mass, total and two-photon widths are also presented.

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