Repository landing page

We are not able to resolve this OAI Identifier to the repository landing page. If you are the repository manager for this record, please head to the Dashboard and adjust the settings.
oaioai:iris.unife.it:11392/2378117

Observation of eta'--> omega e+e-

Authors
Publication date
1 January 2015
Publisher
Doi

    Abstract

    Based on a sample of eta' mesons produced in the radiative decay Jpsi-->gamma eta' in 1.31x10^9 Jpsi events collected with the BESIII detector, the decay eta'-->omega e+e- is observed for the first time, with a statistical significance of 8 sigma. The branching fraction is measured to be B(eta'-->omega e+e-)=(1.97±0.34(stat)±0.17(cyst))x10-4, which is in agreement with theoretical predictions. The branching fraction of eta'-->omega gamma is also measured to be (2.55±0.03(stat)±0.16(cyst))x10-2, which is the most precise measurement to date, and the relative branching fraction B(eta'-->omega e+e-)B(eta'-->omega gamma) is determined to be (7.71±1.34(stat)±0.54(cyst))x10-3

    Similar works

    Full text

    thumbnail-image

    Archivio istituzionale della ricerca - Università di Ferrara

    redirect
    oaioai:iris.unife.it:11392/237811...
    Last time updated on 03/12/2017

    This paper was published in Archivio istituzionale della ricerca - Università di Ferrara.

    Having an issue?

    Is data on this page outdated, violates copyrights or anything else? Report the problem now and we will take corresponding actions after reviewing your request.