Measurement of the gamma gamma[superscript *]-->eta[subscript c] transition form factor

Measurement of the gamma gamma[superscript *]-->eta[subscript c] transition form factor

We study the reaction e+e- -->e+e-eta c, eta c-->KSK±pi∓ and obtain eta c mass and width values 2982.2±0.4±1.6 MeV/c2 and 31.7±1.2±0.8 MeV, respectively. We find Γ(eta c-->γγ)B(eta c-->KK[over-bar]pi)=0.374±0.009±0.031 keV, and measure the γγ*-->eta c transition form factor in the...

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Bibliographic Details
Main Authors:	Dujmic, Denis, Sciolla, Gabriella, Yamamoto, R. K., Zhao, M., Fisher, Peter H, Cowan, Ray F
Other Authors:	Massachusetts Institute of Technology. Department of Physics
Format:	Article
Language:	en_US
Published:	American Physical Society 2010
Online Access:	http://hdl.handle.net/1721.1/58924 https://orcid.org/0000-0002-8667-5660

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