Research articles

search articles

My Pages

Stat

Members: 3645
Articles: 2'506'133
Articles rated: 2609

27 April 2024

» arxiv » 2006.5465

Article overview

Study of the process $e^+e^- o etapi^0gamma$ in the energy range $sqrt{s} = mbox{1.05-2.00}$ GeV with the SND detector
SND Collaboration ; M.N. Achasov ; A.Yu. Barnyakov ; A.A. Baykov ; K.I.Beloborodov ; A.V. Berdyugin ; D.E. Berkaev ; A.G. Bogdanchikov ; A.A. Botov ; T.V. Dimova ; V.P. Druzhinin ; V.B. Golubev ; A.N. Kirpotin ; L.V. Kardapoltsev ; A.S. Kasaev ; A.G. Kharlamov ; I.A. Koop ; A.A. Korol ; D.P. Kovrizhin ; A.S. Kupich ; K.A. Martin ; N.A. Melnikova ; N.Yu. Muchnoy ; A.E. Obrazovsky ; E.V. Pakhtusova ; K.V. Pugachev ; D.V. Rabusov ; Yu.A. Rogovsky ; Y.S. Savchenko ; A.I. Senchenko ; S.I. Serednyakov ; D.N. Shatilov ; Yu.M. Shatunov ; D.A. Shtol ; D.B. Shwartz ; Z.K. Silagadze ; I.K. Surin ; M.V. Timoshenko ; Yu.V. Usov ; V.N. Zhabin ; V.V. Zhulanov ;
Date:	9 Jun 2020
Abstract:	The process $e^+e^- oetapi^0gamma$ is studied in the center-of-mass energy range 1.05-2.00 GeV using data with an integrated luminosity of 94.5 pb$^{-1}$ collected by the SND detector at the VEPP-2000 $e^+e^-$ collider. The $e^+e^- oetapi^0gamma$ cross section is measured for the first time. It is shown that the dominant mechanism of this reaction is the transition through the $omegaeta$ intermediate state. The measured cross section of the subprocess $e^+e^- oomegaeta oetapi^0gamma$ is consistent with previous measurements in the $e^+e^- opi^+pi^-pi^0eta$ mode. It is found, with a significance of 5.8$sigma$, that the process $e^+e^- oetapi^0gamma$ is not completely described by hadronic vector-pseudoscalar intermediate states. The cross section of this missing contribution, which can originate from radiation processes, e. g. $e^+e^- o a_{0}(1450)gamma$, is measured. It is found to be 15-20 pb in the wide energy range from 1.3 to 1.9 GeV.
Source:	arXiv, 2006.5465
Services:	Forum \| Review \| PDF \| Favorites

No review found.

Did you like this article?

This article or document is ...
important:
of broad interest:
readable:
new:
correct:
Global appreciation:

Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.

browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)

ScienXe.org
» my Online CV
» Free

News, job offers and information for researchers and scientists:

home

contact

sitemap