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Search for the radiative transitions Psi(3770) -> gamma eta(c) and gamma eta(c) (2S)
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2014 (English)In: Physical Review D, ISSN 1550-7998, Vol. 89, no 11, 112005- p.Article in journal (Refereed) Published
Abstract [en]

By using a 2.92 fb-1 data sample taken at pffisffiffi 3.773 GeV with the BESIII detector operating at the BEPCII collider, we search for the radiative transitions.d3770c and cd2S through the hadronic decays cdcd2S. K0 SK p. No significant excess of signal events above background is observed. We set upper limits at a 90% confidence level for the product branching fractions to be Bdd3770cxBd.c. K0 SK k p < 1.6x10-5 and Bd.d3770cd2SxBd.cd2S. K0 SK p<5.6x10-6. Combining our result with world-average values of Bd.cd.cd2S. K0 SK p, we find the branching fractions Bd.d3770c< 6.8 x 10-4 and Bd.d3770cd2S< 2.0 x 10-3 at a 90% confidence level.

Place, publisher, year, edition, pages
2014. Vol. 89, no 11, 112005- p.
National Category
Physical Sciences
URN: urn:nbn:se:uu:diva-229449DOI: 10.1103/PhysRevD.89.112005ISI: 000338531000002OAI: oai:DiVA.org:uu-229449DiVA: diva2:736626
Available from: 2014-08-07 Created: 2014-08-07 Last updated: 2014-08-07Bibliographically approved

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Johansson, TordKupsc, AndrezejSchönning, KarinWolke, Magnus
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Nuclear Physics
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