We report a measurement of the CP-violation parameter sin 2β with B0J/ψKS0 decays in which the J/ψ decays to hadrons or to muons that do not satisfy our standard identification criteria. With a sample of 88 million BB̄ events collected by the BABAR detector at the PEP-II asymmetric-energy B factory at SLAC, we reconstruct 100±17 such events, with J/ψ→π-π -π0 being the most prevalent, and measure sin2β=1.56± 0.42(stat)±0.21(syst). © 2004 The American Physical Society.

Aubert, B., Barate, R., Boutigny, D., Gaillard, J.-M., Hicheur, A., Karyotakis, Y., et al. (2004). Measurement of sin 2β with hadronic and previously unused muonic J/ψ decays. PHYSICAL REVIEW D, 69(5), 1-8 [10.1103/PhysRevD.69.052001].

Measurement of sin 2β with hadronic and previously unused muonic J/ψ decays

PATRIGNANI, CLAUDIA;
2004

Abstract

We report a measurement of the CP-violation parameter sin 2β with B0J/ψKS0 decays in which the J/ψ decays to hadrons or to muons that do not satisfy our standard identification criteria. With a sample of 88 million BB̄ events collected by the BABAR detector at the PEP-II asymmetric-energy B factory at SLAC, we reconstruct 100±17 such events, with J/ψ→π-π -π0 being the most prevalent, and measure sin2β=1.56± 0.42(stat)±0.21(syst). © 2004 The American Physical Society.
2004
Aubert, B., Barate, R., Boutigny, D., Gaillard, J.-M., Hicheur, A., Karyotakis, Y., et al. (2004). Measurement of sin 2β with hadronic and previously unused muonic J/ψ decays. PHYSICAL REVIEW D, 69(5), 1-8 [10.1103/PhysRevD.69.052001].
Aubert, B.; Barate, R.; Boutigny, D.; Gaillard, J.-M.; Hicheur, A.; Karyotakis, Y.; Lees, J. P.; Robbe, P.; Tisserand, V.; Zghiche, A.; Palano, A.; Po...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/552434
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