Chinese Physics C > 2010, Vol. 34 > Issue(6): 816-821 DOI: 10.1088/1674-1137/34/6/033

Measurements of the γγ^→π⁰and γγ^→η_ctransition form factors at BABAR

V. P. Druzhinin^,

Budker Institute of Nuclear Physics, Novosibirsk 630090, Russia

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Abstract：

We present measurements of the γγ^*→π⁰transition form factor for the momentum transfer range Q²=4—40 GeV²and the γγ^*→η_ctransition 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 η_cmass, total and two-photon widths are also presented.
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V. P. Druzhinin. Measurements of the γγ ^*→π ⁰and γγ ^*→η _ctransition form factors at BABAR[J]. Chinese Physics C, 2010, 34(6): 816-821. doi: 10.1088/1674-1137/34/6/033

V. P. Druzhinin. Measurements of the γγ ^*→π ⁰and γγ ^*→η _ctransition form factors at BABAR[J]. Chinese Physics C, 2010, 34(6): 816-821. doi:10.1088/1674-1137/34/6/033 shu

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Received: 2010-01-26
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Measurements of the γγ^→π⁰and γγ^→η_ctransition form factors at BABAR

V. P. Druzhinin^,

Corresponding author:V. P. Druzhinin,

Budker Institute of Nuclear Physics, Novosibirsk 630090, Russia

Received Date:2010-01-26
Accepted Date:1900-01-01
Available Online:2010-06-05

Abstract:

We present measurements of the γγ^*→π⁰transition form factor for the momentum transfer range Q²=4—40 GeV²and the γγ^*→η_ctransition 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 η_cmass, total and two-photon widths are also presented.