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19 April 2024

» pubmed » pmid11736560

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First measurement of gamma(D*(+))
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 ; W Park ; E H Thorndike ; T E Coan ; 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 ; V Jain ; 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 ; A Eppich ; T S Hill ; R J Morrison ; H N Nelson ; 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 ; 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 ; 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 ; ;
Date:	17 Dec 2001
Journal:	Phys Rev Lett, 87 (25), 251801
Abstract:	We present the first measurement of the D(+) width using 9/fb of e(+)e(-) data collected near the Upsilon(4S) resonance by the CLEO II.V detector. Our method uses advanced tracking techniques and a reconstruction method that takes advantage of the small vertical size of the Cornell Electron-positron Storage Ring beam spot to measure the energy release distribution from the D(+)-->D(0)pi(+) decay. We find gamma(D(+)) = 96+/-4 (stat)+/-22 (syst) keV. We also measure the energy release in the decay and compute Delta m identical with m(D(+))-m(D(0)) = 145.412+/-0.002 (stat)+/-0.012 (syst) MeV/c(2).
Source:	PubMed, pmid11736560
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