Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/269
Type: Artigo de periódico
Title: Final results from the KTeV experiment on the decay KL ->pi(0)gamma gamma
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.
II, D. G. Phillips
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(K(L) -> pi(0)gamma gamma) using the KTeV detector. We reconstruct 1982 events with an estimated background of 608, that results in B(K(L) -> pi(0)gamma gamma)=(1.29 +/- 0.03(stat) +/- 0.05(syst)) x 10(-6). We also measure the parameter, a(V), which characterizes the strength of vector meson exchange terms in this decay. We find a(V) = -0.31 +/- 0.05(stat) +/- 0.07(syst). These results utilize the full KTeV data set collected from 1997 to 2000 and supersede earlier KTeV measurements of the branching ratio and a(V).
Country: Estados Unidos
Editor: AMER PHYSICAL SOC
Citation: PHYSICAL REVIEW D, v.77, n.11, 2008
Rights: fechado
Identifier DOI: 10.1103/PhysRevD.77.112004
Address: http://apps.isiknowledge.com/InboundService.do?Func=Frame&product=WOS&action=retrieve&SrcApp=EndNote&UT=000257290300007&Init=Yes&SrcAuth=ResearchSoft&mode=FullRecord
http://dx.doi.org/10.1103/PhysRevD.77.112004
Date Issue: 2008
Appears in Collections:IFGW - Artigos e Materiais de Revistas Científicas

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