We search for b -> s mu(+)mu(-) transitions in B meson (B+, B-0, or B-s(0)) decays with 924 pb(-1) of p (p) over bar collisions at root s = 1.96 TeV collected with the CDF II detector at the Fermilab Tevatron. We find excesses with significances of 4.5, 2.9, and 2.4 standard deviations in the B+ -> mu(+)mu(-) K(+), B-0 -> mu(+)mu(-) K*(892)(0), and B-s(0) -> mu(+)mu(-)phi decay modes, respectively. Using B -> J/psi h (h = K+, K*(892)(0), phi) decays as normalization channels, we report branching fractions for the previously observed B+ and B-0 decays, B(B+ -> mu(+)mu(-) K(+)) = (0.59 +/- 0.15 +/- 0.04) x 10(-6), and B(B-0 -> mu(+)mu(-) K*(892)(0)) = (0.81 +/- 0.30 +/- 0.10) x 10(-6), where the first uncertainty is statistical, and the second is systematic. We set an upper limit on the relative branching fraction B(B-s(0) -> mu(+)mu(-)phi)/B(B-s(0) --> J/psi phi) < 2.6(2.3) x 10(-3) at the 95(90)% confidence level, which is the most stringent to date.

T., A., J., A., T., A., M. G., A., B. A., G., S., A., et al. (2009). Search for the rare decays B+ -> mu(+)mu(-) K(+), B-0 -> mu(+)mu(-) K*(892)(0), and B-s(0) -> mu(+)mu(-)phi at CDF. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 79, 011104-1-011104-9 [10.1103/PhysRevD.79.011104].

Search for the rare decays B+ -> mu(+)mu(-) K(+), B-0 -> mu(+)mu(-) K*(892)(0), and B-s(0) -> mu(+)mu(-)phi at CDF

CIOCCI, MARIA AGNESE;
2009-01-01

Abstract

We search for b -> s mu(+)mu(-) transitions in B meson (B+, B-0, or B-s(0)) decays with 924 pb(-1) of p (p) over bar collisions at root s = 1.96 TeV collected with the CDF II detector at the Fermilab Tevatron. We find excesses with significances of 4.5, 2.9, and 2.4 standard deviations in the B+ -> mu(+)mu(-) K(+), B-0 -> mu(+)mu(-) K*(892)(0), and B-s(0) -> mu(+)mu(-)phi decay modes, respectively. Using B -> J/psi h (h = K+, K*(892)(0), phi) decays as normalization channels, we report branching fractions for the previously observed B+ and B-0 decays, B(B+ -> mu(+)mu(-) K(+)) = (0.59 +/- 0.15 +/- 0.04) x 10(-6), and B(B-0 -> mu(+)mu(-) K*(892)(0)) = (0.81 +/- 0.30 +/- 0.10) x 10(-6), where the first uncertainty is statistical, and the second is systematic. We set an upper limit on the relative branching fraction B(B-s(0) -> mu(+)mu(-)phi)/B(B-s(0) --> J/psi phi) < 2.6(2.3) x 10(-3) at the 95(90)% confidence level, which is the most stringent to date.
2009
T., A., J., A., T., A., M. G., A., B. A., G., S., A., et al. (2009). Search for the rare decays B+ -> mu(+)mu(-) K(+), B-0 -> mu(+)mu(-) K*(892)(0), and B-s(0) -> mu(+)mu(-)phi at CDF. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 79, 011104-1-011104-9 [10.1103/PhysRevD.79.011104].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11365/38062
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