We present measurements of the branching fractions of the decays B+-->eta(')K(+) and B-0-->eta(')K(0). For B-0-->eta(')K(S)(0) we also measure the time-dependent CP-violation parameters (SetaKS0)-K-' and (CetaKS0)-K-', and for B+-->eta(')K(+) the time-integrated charge asymmetry A(ch). The data sample corresponds to 88.9x10(6) B (B) over bar pairs produced by e(+)e(-) annihilation at the Y(4S). The results are B(B+-->eta(')K(+))=(76.9+/-3.5+/-4.4)x10(-6), B(B-0-->eta(')K(0))=(60.6+/-5.6+/-4.6)x10(-6), (SetaKS0)-K-'=0.02+/-0.34+/-0.03, (CetaKS0)-K-'=0.10+/-0.22+/-0.04, and A(ch)=0.037+/-0.045+/-0.011.

Aubert, B., Barate, R., Boutigny, D., Gaillard, J., Hicheur, A., Karyotakis, Y., et al. (2003). Measurements of CP-Violating Asymmetries and Branching Fractions in B Meson Decays to η′K. PHYSICAL REVIEW LETTERS, 91(16), 1-7 [10.1103/PhysRevLett.91.161801].

Measurements of CP-Violating Asymmetries and Branching Fractions in B Meson Decays to η′K

CARPINELLI, Massimo;
2003

Abstract

We present measurements of the branching fractions of the decays B+-->eta(')K(+) and B-0-->eta(')K(0). For B-0-->eta(')K(S)(0) we also measure the time-dependent CP-violation parameters (SetaKS0)-K-' and (CetaKS0)-K-', and for B+-->eta(')K(+) the time-integrated charge asymmetry A(ch). The data sample corresponds to 88.9x10(6) B (B) over bar pairs produced by e(+)e(-) annihilation at the Y(4S). The results are B(B+-->eta(')K(+))=(76.9+/-3.5+/-4.4)x10(-6), B(B-0-->eta(')K(0))=(60.6+/-5.6+/-4.6)x10(-6), (SetaKS0)-K-'=0.02+/-0.34+/-0.03, (CetaKS0)-K-'=0.10+/-0.22+/-0.04, and A(ch)=0.037+/-0.045+/-0.011.
Articolo in rivista - Articolo scientifico
Algorithms; Calorimeters; Charged particles; Eigenvalues and eigenfunctions; Energy dissipation; Particle detectors; Photons; Silicon; Solenoids; Electromagnetic calorimeters; High energy physics;
English
2003
1
7
7
B. Aubert et al. (BABAR Collaboration)
Aubert, B., Barate, R., Boutigny, D., Gaillard, J., Hicheur, A., Karyotakis, Y., et al. (2003). Measurements of CP-Violating Asymmetries and Branching Fractions in B Meson Decays to η′K. PHYSICAL REVIEW LETTERS, 91(16), 1-7 [10.1103/PhysRevLett.91.161801].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/389993
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