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Type: Artigo de periódico
Title: Observation of the decay Xi(0)->Sigma(+)mu(-)(nu)over-bar(mu)
Author: Abouzaid, E
Alexopoulos, T
Arenton, M
Barbosa, RF
Barker, AR
Bellantoni, L
Bellavance, A
Blucher, E
Bock, GJ
Cheu, E
Coleman, R
Corcoran, MD
Cox, B
Erwin, AR
Escobar, CO
Glazov, A
Golossanov, A
Gomes, RA
Gouffon, P
Hanagaki, K
Hsiung, YB
Huang, H
Jensen, DA
Kessler, R
Kotera, K
LaDue, J
Ledovskoy, A
McBride, PL
Monnier, E
Nelson, KS
Nguyen, H
Niclasen, R
Ping, H
Prasad, V
Qi, XR
Ramberg, EJ
Ray, RE
Ronquest, M
Santos, E
Shields, J
Slater, W
Smith, D
Solomey, N
Swallow, EC
Toale, PA
Tschirhart, R
Velissaris, C
Wah, YW
Wang, J
White, HB
Whitmore, J
Wilking, M
Winstein, B
Winston, R
Worcester, ET
Worcester, M
Yamanaka, T
Zimmerman, ED
Zukanovich, RF
Abstract: The Xi(0) muon semileptonic decay has been observed for the first time with nine identified events using the KTeV beam line and detector at Fermilab. The decay is normalized to the Xi(0) beta decay mode and yields a value for the ratio of decay rates Gamma(Xi(0)->Sigma(+)mu(-)nu(mu))/Gamma(Xi(0)->Sigma(+)e(-)nu(e)) of [1.8(-0.5)(+0.7)(stat)+/- 0.2(syst)]x10(-2). This is in agreement with the SU(3) flavor symmetric quark model.
Country: EUA
Editor: American Physical Soc
Citation: Physical Review Letters. American Physical Soc, v. 95, n. 8, 2005.
Rights: aberto
Identifier DOI: 10.1103/PhysRevLett.95.081801
Date Issue: 2005
Appears in Collections:Unicamp - Artigos e Outros Documentos

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