Title
Search for T violation in charm meson decays
Date Issued
01 September 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.
Massafferri 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.
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.
Pegna D.L.
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.
Hosack M.
Centro Brasileiro de Pesquisas Físicas
Abstract
Using data from the FOCUS (E831) experiment, we have searched for T violation in charm meson decays using the four-body decay channels D 0→K-K+π-π+, D+→KS0K+π -π+, and Ds+→K S0K+π-π+. The T violation asymmetry is obtained using triple-product correlations and assuming the validity of the CPT theorem. We find the asymmetry values to be A Tviol(D0)=0.010±0.057(stat.)±0.037(syst.), ATviol(D+)=0.023±0.062(stat.)±0.022(syst.), and ATviol(Ds+)=-0.036±0.067(stat.) ±0.023(syst.). Each measurement is consistent with no T violation. New measurements of the CP asymmetries for some of these decay modes are also presented. © 2005 Elsevier B.V. All rights reserved.
Start page
239
End page
248
Volume
622
Issue
April 3
Language
English
OCDE Knowledge area
Física nuclear
Scopus EID
2-s2.0-24044498684
Source
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
ISSN of the container
03702693
Sponsor(s)
Further, we wish to acknowledge the assistance of the staffs of Fermi National Accelerator Laboratory, the INFN of Italy, and the physics departments of the collaborating institutions. This research was supported in part by the US National Science Foundation, the US Department of Energy, the Italian Istituto Nazionale di Fisica Nucleare and Ministero della Istruzione Università e Ricerca, the Brazilian Conselho Nacional de Desenvolvimento Científico e Tecnológico, CONACyT-México, and the Korea Research Foundation of the Korean Ministry of Education.
Sources of information:
Directorio de Producción Científica
Scopus