Search for CP violation in $B^\pm \to J/\psi K^\pm$ and $B^\pm \to \psi_{2S} K^\pm$ decays

Bonvicini, G.; Cinabro, D.; McGee, S.; Perera, L.P.; Zhou, G.J.; Lipeles, Elliot David; Pappas, S.; Schmidtler, M.; Shapiro, A.; Sun, W.M.

doi:10.1103/PhysRevLett.84.5940

Search for CP violation in $B^\pm \to J/\psi K^\pm$ and $B^\pm \to \psi_{2S} K^\pm$ decays

CLEO

Collaboration

Mar, 2000

9 pages

Published in:

Phys.Rev.Lett. 84 (2000) 5940

e-Print:

hep-ex/0003004 [hep-ex]

DOI:

10.1103/PhysRevLett.84.5940

PDG:

\mathit A_{CP}({{\mathit B}^{+}}

\rightarrow

{{\mathit J / \psi}{(1S)}}{{\mathit K}^{+}}

)

Report number:

SLAC-REPRINT-2000-084,
CLNS-00-1661,
CLEO-00-01

Experiments:

CESR-CLEO-II

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Abstract: (arXiv)

We present a search for direct CP violation in B+- -> J/psi K+- and B+- -> psi(2S) K+- decays. In a sample of 9.7 million B meson pairs collected with the CLEO detector, we have fully reconstructed 534 B+- -> J/psi K+- and 120 B+- -> psi(2S) K+- decays with very low background. We have measured the CP-violating charge asymmetry to be (+1.8+-4.3[stat]+-0.4[syst])% for B+- -> J/psi K+- and (+2.0+-9.1[stat]+-1.0[syst])% for B+- -> psi(2S) K+-.

B+: hadronic decay
B-: hadronic decay
J/psi(3100)
psi(3685)
CP: violation
Feynman graph
mass spectrum
charge: asymmetry
CLEO
experimental results

References(10)

Figures(0)

CP Violation in the Renormalizable Theory of Weak Interaction

Makoto Kobayashi
(
- Kyoto U.
)
,
Toshihide Maskawa
(
- Kyoto U.
)

- Prog.Theor.Phys. 49 (1973) 652-657,
- Also in *Lichtenberg, D. B. (Ed.), Rosen, S. P. (Ed.): Developments In The Quark Theory Of Hadrons, Vol. 1*, 218-223.
•
DOI:
- 10.1143/PTP.49.652