Science-advisor
REGISTER info/FAQ
Login
username
password
     
forgot password?
register here
 
Research articles
  search articles
  reviews guidelines
  reviews
  articles index
My Pages
my alerts
  my messages
  my reviews
  my favorites
 
 
Stat
Members: 3643
Articles: 2'488'730
Articles rated: 2609

29 March 2024
 
  » arxiv » 1109.4215

 Article overview


Measurement of main parameters of the psi(2S) resonance
V.V.Anashin ; V.M.Aulchenko ; E.M.Baldin ; A.K.Barladyan ; A.Yu.Barnyakov ; M.Yu.Barnyakov ; S.E.Baru ; I.Yu.Basok ; O.L.Beloborodova ; A.E.Blinov ; V.E.Blinov ; A.V.Bobrov ; V.S.Bobrovnikov ; A.V.Bogomyagkov ; A.E.Bondar ; A.R.Buzykaev ; S.I.Eidelman ; D.N.Grigoriev ; Yu.M.Glukhovchenko ; V.V.Gulevich ; D.V.Gusev ; S.E.Karnaev ; G.V.Karpov ; S.V.Karpov ; T.A.Kharlamova ; V.A.Kiselev ; V.V.Kolmogorov ; S.A.Kononov ; K.Yu.Kotov ; E.A.Kravchenko ; V.N.Kudryavtsev ; V.F.Kulikov ; G.Ya.Kurkin ; E.A.Kuper ; E.B.Levichev ; D.A.Maksimov ; V.M.Malyshev ; A.L.Maslennikov ; A.S.Medvedko ; O.I.Meshkov ; S.I.Mishnev ; I.I.Morozov ; N.Yu.Muchnoi ; V.V.Neufeld ; S.A.Nikitin ; I.B.Nikolaev ; I.N.Okunev ; A.P.Onuchin ; S.B.Oreshkin ; I.O.Orlov ; A.A.Osipov ; S.V.Peleganchuk ; S.G.Pivovarov ; P.A.Piminov ; V.V.Petrov ; A.O.Poluektov ; V.G.Prisekin ; A.A.Ruban ; V.K.Sandyrev ; G.A.Savinov ; A.G.Shamov ; D.N.Shatilov ; B.A.Shwartz ; E.A.Simonov ; S.V.Sinyatkin ; A.N.Skrinsky ; V.V.Smaluk ; A.V.Sokolov ; A.M.Sukharev ; E.V.Starostina ; A.A.Talyshev ; V.A.Tayursky ; V.I.Telnov ; Yu.A.Tikhonov ; K.Yu.Todyshev ; G.M.Tumaikin ; Yu.V.Usov ; A.I.Vorobiov ; A.N.Yushkov ; V.N.Zhilich ; V.V.Zhulanov ; A.N.Zhuravlev ;
Date 20 Sep 2011
AbstractA high-precision determination of the main parameters of the psi(2S) resonance has been performed with the KEDR detector at the VEPP-4M e^{+}e^{-} collider in three scans of the psi(2S)--psi(3770) energy range. Fitting the energy dependence of the multihadron cross section in the vicinity of psi(2S) we obtained the mass value which is discussed in a separate paper and the product of the electron partial width by the branching fraction into hadrons
Gamma_{ee}*B_{h} = 2.233 +- 0.015 +- 0.036 keV.
Using the world average values of the electron and hadron branching fractions, one obtains the electron partial width and the total width of psi(2S):
Gamma_{ee} =2.282 +- 0.015 +- 0.037 keV,
Gamma = 296 +- 2 +- 8 keV.
These results are consistent with and more than two times better than any of the previous experiments
Source arXiv, 1109.4215
Services Forum | Review | PDF | Favorites   
 
Visitor rating: did you like this article? no 1   2   3   4   5   yes

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 claudebot






ScienXe.org
» my Online CV
» Free


News, job offers and information for researchers and scientists:
home  |  contact  |  terms of use  |  sitemap
Copyright © 2005-2024 - Scimetrica