Title
Measurement of the Ds+ lifetime
Date Issued
29 July 2005
Access level
open access
Resource Type
journal article
Author(s)
Link J.M.
Yager P.M.
Anjos J.C.
Bediaga I.
Machado A.A.
Magnin J.
Massafferi A.
de Miranda J.M.
Pepe I.M.
Polycarpo E.
dos Reis A.C.
Carrillo S.
Casimiro E.
Cuautle E.
Sánchez-Hernández A.
Uribe C.
Vázquez F.
Agostino L.
Cinquini L.
Cumalat J.P.
O'Reilly B.
Segoni I.
Stenson K.
Butler J.N.
Cheung H.W.K.
Chiodini G.
Gaines I.
Garbincius P.H.
Garren L.A.
Gottschalk E.
Kasper P.H.
Kreymer A.E.
Kutschke R.
Wang M.
Benussi L.
Bertani M.
Bianco S.
Fabbri F.L.
Pacetti S.
Zallo A.
Reyes M.
Cawlfield C.
Kim D.Y.
Rahimi A.
Wiss J.
Gardner R.
Kryemadhi A.
Chung Y.S.
Kang J.S.
Ko B.R.
Kwak J.W.
Lee K.B.
Cho K.
Park H.
Alimonti G.
Barberis S.
Boschini M.
Cerutti A.
D'Angelo P.
DiCorato M.
Dini P.
Edera L.
Erba S.
Inzani P.
Leveraro F.
Malvezzi S.
Menasce D.
Mezzadri M.
Milazzo L.
Moroni L.
Pedrini D.
Pontoglio C.
Prelz F.
Rovere M.
Sala S.
Davenport T.F.
Arena V.
Boca G.
Bonomi G.
Gianini G.
Liguori G.
Lopes Pegna D.
Merlo M.M.
Pantea D.
Ratti S.P.
Riccardi C.
Vitulo P.
Göbel C.
Hernandez H.
Lopez A.M.
Mendez H.
Paris A.
Quinones J.
Ramirez J.E.
Zhang Y.
Wilson J.R.
Handler T.
Mitchell R.
Engh D.
Centro Brasileiro de Pesquisas Físicas
Abstract
A high statistics measurement of the Ds+ lifetime from the Fermilab fixed-target FOCUS photoproduction experiment is presented. We describe the analysis of the two decay modes, Ds+→(1020)π+ and Ds+→K̄ *(892)0K+, used for the measurement. The measured lifetime is 507.4±5.5(stat)±5.1(syst)fs using 8961±105 Ds+→(1020)π+ and 4680±90 Ds+→K̄*(892)0K+ decays. This is a significant improvement over the present world average. © 2005 The American Physical Society.
Volume
95
Issue
5
Language
English
OCDE Knowledge area
Física nuclear
Scopus EID
2-s2.0-27144471019
Source
Physical Review Letters
ISSN of the container
00319007
Sources of information:
Directorio de Producción Científica
Scopus