uu.seUppsala University Publications
Change search
ReferencesLink to record
Permanent link

Direct link
Observation of J/psi -> gamma eta pi(0)
Inst High Energy Phys, Beijing 100049, Peoples R China..
GI Budker Inst Nucl Phys SB RAS BINP, Novosibirsk 630090, Russia.;Novosibirsk State Univ, Novosibirsk 630090, Russia..
Helmholtz Inst Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
Inst High Energy Phys, Beijing 100049, Peoples R China..
Show others and affiliations
2016 (English)In: PHYSICAL REVIEW D, ISSN 2470-0010, Vol. 94, no 7, 072005Article in journal (Refereed) Published
Abstract [en]

We present the first study of the process J/psi -> gamma eta pi(0) using (223.7 +/- 1.4) x 10(6) J/psi events accumulated with the BESIII detector at the BEPCII facility. The branching fraction for J/psi -> gamma eta pi(0) is measured to be B(J/psi -> gamma eta pi(0)) = (2.14 +/- 0.18(stat) +/- 0.25(syst)) x 10(-5). With a Bayesian approach, the upper limits of the branching fractions B(J/psi -> gamma a(0)(980), a(0)(980) -> eta pi(0)) and B(J/psi -> gamma a(2)(1320), a(2)(1320) -> eta pi(0)) are determined to be 2.5 x 10(-6) and 6.6 x 10(-6) at the 95% confidence level, respectively. All of these measurements are given for the first time.

Place, publisher, year, edition, pages
2016. Vol. 94, no 7, 072005
National Category
Subatomic Physics
Identifiers
URN: urn:nbn:se:uu:diva-307535DOI: 10.1103/PhysRevD.94.072005ISI: 000385633400001OAI: oai:DiVA.org:uu-307535DiVA: diva2:1047356
Funder
German Research Foundation (DFG), CRC-1044Swedish Research Council
Available from: 2016-11-17 Created: 2016-11-17 Last updated: 2016-11-17Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Johansson, TordKupsc, AndrzejLi, CuiPettersson, JoachimSchönning, KarinWolke, Magnus
By organisation
Nuclear Physics
Subatomic Physics

Search outside of DiVA

GoogleGoogle Scholar

Altmetric score

Total: 36 hits
ReferencesLink to record
Permanent link

Direct link