Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/105395
Type: Artigo de periódico
Title: Final Results From The Ktev Experiment On The Decay Kl→π0γ γ
Author: Abouzaid E.
Arenton M.
Barker A.R.
Bellantoni L.
Blucher E.
Bock G.J.
Cheu E.
Coleman R.
Corcoran M.D.
Cox B.
Erwin A.R.
Escobar C.O.
Glazov A.
Golossanov A.
Gomes R.A.
Gouffon P.
Hsiung Y.B.
Jensen D.A.
Kessler R.
Kotera K.
Ledovskoy A.
McBride P.L.
Monnier E.
Nguyen H.
Niclasen R.
Phillips II D.G.
Ramberg E.J.
Ray R.E.
Ronquest M.
Santos E.
Slater W.
Smith D.
Solomey N.
Swallow E.C.
Toale P.A.
Tschirhart R.
Wah Y.W.
Wang J.
White H.B.
Whitmore J.
Wilking M.J.
Winstein B.
Winston R.
Worcester E.T.
Yamanaka T.
Zimmerman E.D.
Zukanovich R.F.
Abstract: We report on a new measurement of the branching ratio B(KL→π 0γγ) using the KTeV detector. We reconstruct 1982 events with an estimated background of 608, that results in B(KL→π0γγ)=(1. 29±0.03stat±0.05syst)×10-6. We also measure the parameter, aV, which characterizes the strength of vector meson exchange terms in this decay. We find aV=-0.31±0.05stat±0.07syst. These results utilize the full KTeV data set collected from 1997 to 2000 and supersede earlier KTeV measurements of the branching ratio and aV. © 2008 The American Physical Society.
Editor: 
Rights: aberto
Identifier DOI: 10.1103/PhysRevD.77.112004
Address: http://www.scopus.com/inward/record.url?eid=2-s2.0-45749092895&partnerID=40&md5=8fff6be2ebf3a8fa06b7f1608aa9ba90
Date Issue: 2008
Appears in Collections:Unicamp - Artigos e Outros Documentos

Files in This Item:
There are no files associated with this item.


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.