We present a measurement of the branching fraction for the decay of the neutral B meson into the final state J/psipi(+)pi(-). The data set contains approximately 56x10(6) B (B) over bar pairs produced at the Y(4S) resonance and recorded with the BABAR detector at the PEP-II asymmetric-energy e(+)e(-) storage ring. The result of this analysis is B(B-0-->J/psipi(+)pi(-))=(4.6+/-0.7+/-0.6)x10(-5), where the first error is statistical and the second is systematic. In addition, we measure B(B-0-->J/psirho(0))=(1.6+/-0.6+/-0.4)x10(-5).

Aubert, B., Boutigny, D., Gaillard, J., Hicheur, A., Karyotakis, Y., Lees, J., et al. (2003). Measurement of the B0 → J/ψπ+π- branching fraction. PHYSICAL REVIEW LETTERS, 90(9), 1-4 [10.1103/PhysRevLett.90.091801].

Measurement of the B0 → J/ψπ+π- branching fraction

CARPINELLI, Massimo;
2003

Abstract

We present a measurement of the branching fraction for the decay of the neutral B meson into the final state J/psipi(+)pi(-). The data set contains approximately 56x10(6) B (B) over bar pairs produced at the Y(4S) resonance and recorded with the BABAR detector at the PEP-II asymmetric-energy e(+)e(-) storage ring. The result of this analysis is B(B-0-->J/psipi(+)pi(-))=(4.6+/-0.7+/-0.6)x10(-5), where the first error is statistical and the second is systematic. In addition, we measure B(B-0-->J/psirho(0))=(1.6+/-0.6+/-0.4)x10(-5).
Articolo in rivista - Articolo scientifico
Approximation theory; Binding energy; Computer simulation; Elementary particles; Mathematical models; Statistical methods; Asymmetric energy; Branching fraction; Meson; High energy physics;
English
2003
90
9
1
4
091801
none
Aubert, B., Boutigny, D., Gaillard, J., Hicheur, A., Karyotakis, Y., Lees, J., et al. (2003). Measurement of the B0 → J/ψπ+π- branching fraction. PHYSICAL REVIEW LETTERS, 90(9), 1-4 [10.1103/PhysRevLett.90.091801].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/389992
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