Research articles

search articles

My Pages

Stat

Members: 3645
Articles: 2'500'096
Articles rated: 2609

19 April 2024

» pubmed » pmid11497821

Article overview

Experimental investigation of the two-photon widths of the chi(c0) and the chi(c2) mesons
B I Eisenstein ; J Ernst ; G E Gladding ; G D Gollin ; R M Hans ; E Johnson ; I Karliner ; M A Marsh ; C Plager ; C Sedlack ; M Selen ; J J Thaler ; J Williams ; K W Edwards ; A J Sadoff ; R Ammar ; A Bean ; D Besson ; X Zhao ; S Anderson ; V V Frolov ; Y Kubota ; S J Lee ; R Poling ; A Smith ; C J Stepaniak ; J Urheim ; S Ahmed ; M S Alam ; S B Athar ; L Jian ; L Ling ; M Saleem ; S Timm ; F Wappler ; A Anastassov ; E Eckhart ; K K Gan ; C Gwon ; T Hart ; K Honscheid ; D Hufnagel ; H Kagan ; R Kass ; T K Pedlar ; J B Thayer ; E von Toerne ; M M Zoeller ; S J Richichi ; H Severini ; P Skubic ; A Undrus ; V Savinov ; S Chen ; J W Hinson ; J Lee ; D H Miller ; E I Shibata ; I P Shipsey ; V Pavlunin ; D Cronin-Hennessy ; A L Lyon ; E H Thorndike ; T E Coan ; V Fadeyev ; Y S Gao ; Y Maravin ; I Narsky ; R Stroynowski ; J Ye ; T Wlodek ; M Artuso ; K Benslama ; C Boulahouache ; K Bukin ; E Dambasuren ; G Majumder ; R Mountain ; T Skwarnicki ; S Stone ; J C Wang ; A Wolf ; S Kopp ; M Kostin ; A H Mahmood ; S E Csorna ; I Danko ; K W McLean ; Z Xu ; R Godang ; G Bonvicini ; D Cinabro ; M Dubrovin ; S McGee ; A Bornheim ; E Lipeles ; S P Pappas ; A Shapiro ; W M Sun ; A J Weinstein ; D E Jaffe ; R Mahapatra ; G Masek ; H P Paar ; D M Asner ; A Eppich ; T S Hill ; R J Morrison ; R A Briere ; G P Chen ; T Ferguson ; H Vogel ; J P Alexander ; C Bebek ; B E Berger ; K Berkelman ; F Blanc ; V Boisvert ; D G Cassel ; P S Drell ; J E Duboscq ; K M Ecklund ; R Ehrlich ; P Gaidarev ; R S Galik ; L Gibbons ; B Gittelman ; S W Gray ; D L Hartill ; B K Heltsley ; L Hsu ; C D Jones ; J Kandaswamy ; D L Kreinick ; M Lohner ; A Magerkurth ; H Mahlke-Krüger ; T O Meyer ; N B Mistry ; E Nordberg ; M Palmer ; J R Patterson ; D Peterson ; D Riley ; A Romano ; H Schwarthoff ; J G Thayer ; D Urner ; B Valant-Spaight ; G Viehhauser ; A Warburton ; P Avery ; C Prescott ; A I Rubiera ; H Stoeck ; J Yelton ; G Brandenburg ; A Ershov ; D Y Kim ; R Wilson ;
Date:	6 Aug 2001
Journal:	Phys Rev Lett, 87 (6), 061801
Abstract:	Using 12.7 fb(-1) of data collected with the CLEO detector at CESR, we observed two-photon production of the cc states chi(c0) and chi(c2) in their decay to pi(+)pi(-)pi(+)pi(-). We measured gamma(gammagamma)(chi(c))xB(chi(c)-->pi(+)pi(-)pi(+)pi(-)) to be 75+/-13(stat)+/-8(syst) eV for the chi(c0) and 6.4+/-1.8(stat)+/-0.8(syst) eV for the chi(c2), implying gamma(gammagamma)(chi(c0)) = 3.76+/-0.65(stat)+/-0.41(syst)+/-1.69(br) keV and gamma(gammagamma)(chi(c2)) = 0.53+/-0.15(stat)+/-0.06(syst)+/-0.22(br) keV. Also, cancellation of dominant experimental and theoretical uncertainties permits a precise comparison of gamma(gammagamma)(chi(c0))/gamma(gammagamma)(chi(c2)), evaluated to be 7.4+/-2.4(stat)+/-0.5(syst)+/-0.9(br), with QCD-based predictions.
Source:	PubMed, pmid11497821
Services:	Forum \| Review \| 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