Precise determination of the ηc mass and width in the radiative J/ψ → ηcγ decay

被引：7

作者：

Brambilla, Nora ^{[1
]}

Roig, Pablo ^{[2
]}

Vairo, Antonio ^{[1
]}

机构：

[1] Tech Univ Munich, Dept Phys, James Franck Str 1, D-85748 Garching, Germany

[2] Univ Paris 11, CNRS, Lab Phys Theor, UMR 8627, F-91405 Orsay, France

来源：

IX INTERNATIONAL CONFERENCE ON QUARK CONFINEMENT AND THE HADRON SPECTRUM (QCHS IX) | 2011年 / 1343卷

关键词：

Radiative decays of charmonia; quarkonia; non-relativistic effective-field theories; QCD; ORTHOPOSITRONIUM DECAY; HEAVY QUARKONIUM; SPECTRUM; NRQCD;

D O I：

10.1063/1.3575048

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We present an effective field theory based extraction of the h c mass and width from a recent measurement by CLEO of the photon line shape in the J/psi -> eta(c)gamma decay.

引用

页码：418 / 420

页数：3

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