Absolute branching fraction measurements for D+ and D0 inclusive semileptonic decays.

نویسندگان

  • N E Adam
  • J P Alexander
  • K Berkelman
  • D G Cassel
  • J E Duboscq
  • K M Ecklund
  • R Ehrlich
  • L Fields
  • L Gibbons
  • R Gray
  • S W Gray
  • D L Hartill
  • B K Heltsley
  • D Hertz
  • C D Jones
  • J Kandaswamy
  • D L Kreinick
  • V E Kuznetsov
  • H Mahlke-Krüger
  • T O Meyer
  • P U E Onyisi
  • J R Patterson
  • D Peterson
  • J Pivarski
  • D Riley
  • A Ryd
  • A J Sadoff
  • H Schwarthoff
  • X Shi
  • S Stroiney
  • W M Sun
  • T Wilksen
  • M Weinberger
  • S B Athar
  • R Patel
  • V Potlia
  • H Stoeck
  • J Yelton
  • P Rubin
  • C Cawlfield
  • B I Eisenstein
  • I Karliner
  • D Kim
  • N Lowrey
  • P Naik
  • C Sedlack
  • M Selen
  • E J White
  • J Wiss
  • M R Shepherd
  • D Besson
  • T K Pedlar
  • D Cronin-Hennessy
  • K Y Gao
  • D T Gong
  • J Hietala
  • Y Kubota
  • T Klein
  • B W Lang
  • R Poling
  • A W Scott
  • A Smith
  • S Dobbs
  • Z Metreveli
  • K K Seth
  • A Tomaradze
  • P Zweber
  • J Ernst
  • H Severini
  • S A Dytman
  • W Love
  • V Savinov
  • O Aquines
  • Z Li
  • A Lopez
  • S Mehrabyan
  • H Mendez
  • J Ramirez
  • G S Huang
  • D H Miller
  • V Pavlunin
  • B Sanghi
  • I P J Shipsey
  • B Xin
  • G S Adams
  • M Anderson
  • J P Cummings
  • I Danko
  • J Napolitano
  • Q He
  • J Insler
  • H Muramatsu
  • C S Park
  • E H Thorndike
  • T E Coan
  • Y S Gao
  • F Liu
  • M Artuso
  • S Blusk
  • J Butt
  • J Li
  • N Menaa
  • R Mountain
  • S Nisar
  • K Randrianarivony
  • R Redjimi
  • R Sia
  • T Skwarnicki
  • S Stone
  • J C Wang
  • K Zhang
  • S E Csorna
  • G Bonvicini
  • D Cinabro
  • M Dubrovin
  • A Lincoln
  • D M Asner
  • K W Edwards
  • R A Briere
  • I Brock
  • J Chen
  • T Ferguson
  • G Tatishvili
  • H Vogel
  • M E Watkins
  • J L Rosner
چکیده

We present measurements of the inclusive branching fractions for the decays D+-->Xe+ nu(e) and D0-->Xe+ nu(e), using 281 pb(-1) of data collected on the psi(3770) resonance with the CLEO-c detector. We find B(D0-->Xe+ nu(e)) = (6.46+/-0.17+/-0.13)% and B(D+-->Xe+ nu(e)) = (16.13+/-0.20+/-0.33)%. Using the known D meson lifetimes, we obtain the ratio Gamma(D+)sl/Gamma(D0)sl = 0.985+/-0.028+/-0.015, confirming isospin invariance at the level of 3%. The positron momentum spectra from D+ and D0 have consistent shapes.

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عنوان ژورنال:
  • Physical review letters

دوره 97 25  شماره 

صفحات  -

تاریخ انتشار 2006