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: 2'487'895
Articles rated: 2609

29 March 2024
 
  » arxiv » hep-ex/0403011

 Article overview


Evidence for a narrow resonance at 1530 MeV/c2 in the K0 p - system of the reaction pp --> Sigma+ K0 p from the COSY-TOF experiment
M.Abdel-Bary ; S.Abdel-Samad ; K.-Th.Brinkmann ; H.Clement ; E.Doroshkevich ; M.Drochner ; S.Dshemuchadse ; A.Erhardt ; W.Eyrich ; D.Filges ; A.Filippi ; H.Freiesleben ; M.Fritsch ; J.Georgi ; A.Gillitzer ; D.Hesselbarth ; R.Jaekel ; B.Jakob ; L.Karsch ; K.Kilian ; H.Koch ; J.Kress ; E.Kuhlmann ; S.Marcello ; S.Marwinski ; R.Meier ; P.Michel ; K.Moeller ; H.Moertel ; H.P.Morsch ; N.Paul ; L.Pinna ; C.Pizzolotto ; M.Richter ; E.Roderburg ; P.Schoenmeier ; W.Schroeder ; M.Schulte-Wissermann ; T.Sefzick ; F.Stinzing ; G.Y.Sun ; A.Teufel ; A.Ucar ; G.J.Wagner ; M.Wagnerc ; A.Wilms ; P.Wintz ; St.Wirth ; P.Wuestner ;
Date 5 Mar 2004
Journal Phys.Lett. B595 (2004) 127-134
Subject hep-ex
AbstractThe hadronic reaction pp --> Sigma+ K0 p was measured exclusively at a beam momentum of 2.95 GeV/c using the TOF detector at the COSY storage ring. A narrow peak was observed in the invariant mass spectrum of the K0 p subsystem at 1530 +- 5 MeV/c2 with a significance of 4 - 6 standard deviations, depending on background assumptions. The upper limit of 18 +- 4 MeV/c2 (FWHM) for its width is given by the experimental resolution. The corresponding total cross section is estimated to be about 0.4 +- 0.1(stat) +- 0.1(syst) microbarn. Since a resonance in this subsystem must have strangeness S = + 1 we claim it to be the Theta+ state for which very recently evidence was found in various experiments.
Source arXiv, hep-ex/0403011
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