Research articles

search articles

My Pages

Stat

Members: 3645
Articles: 2'504'928
Articles rated: 2609

25 April 2024

» arxiv » nucl-ex/0702059

Article overview

Comparison of Isoscalar Vector Meson Production Cross Sections in Proton-Proton Collisions
COSY-TOF collaboration ; M. Abdel-Bary ; S. Abdel-Samad ; K.-Th. Brinkmann ; H. Clement ; J. Dietrich ; E. Doroshkevich ; S. Dshemuchadse ; K. Ehrhardt ; A. Erhardt ; W. Eyrich ; A. Filippi ; H. Freiesleben ; M. Fritsch ; A. Gillitzer ; D. Hesselbarth ; R. Jäkel ; L. Karsch ; K. Kilian ; E. Kuhlmann ; S. Marcello ; P. Michel ; K. Möller ; H.P. Morsch ; C. Pizzolotto ; Ch. Plettner ; J. Ritman ; E. Roderburg ; P. Schönmeier ; W. Schroeder ; M. Schulte-Wissermann ; M. Steinke ; G.J. Sun ; W. Ullrich ; R. Wenzel ; P. Wintz ; M. Wagner ; A. Wilms ; S. Wirth ; P. Zupranski ; PostScript ; PDF ; Other formats ;
Date:	28 Feb 2007
Abstract:	The reaction $ pp o ppf omega$ was investigated with the TOF spectrometer, which is an external experiment at the accelerator COSY (Forschungszentrum J"ulich, Germany). Total as well as differential cross sections were determined at an excess energy of $93 MeV$ ($p_{beam}=2950 MeV/c$). Using the total cross section of $(9.0pm 0.7 pm1.1) mu b$ for the reaction $ pp o ppomega$ determined here and existing data for the reaction $pp o ppf phi$, the ratio $mathcal{R}_{phi/omega}=sigma_phi/sigma_omega$ turns out to be significantly larger than expected by the Okubo-Zweig-Iizuka (OZI) rule. The uncertainty of this ratio is considerably smaller than in previous determinations. The differential distributions show that the $omega$ production is still dominated by S-wave production at this excess energy, however higher partial waves clearly contribute. A comparison of the measured angular distributions for $omega$ production to published distributions for $phi$ production at $83 MeV$ shows that the data are consistent with an identical production mechanism for both vector mesons.
Source:	arXiv, nucl-ex/0702059
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