Search for the Rare Decays B^+ -> mu^+ mu^- K^+, B^0 -> mu^+ mu^- K^*0(892), and B^0_s -> mu^+ mu^- phi at CDF [electronic resource].
- Published:
- Washington, D.C. : United States. Dept. of Energy, 2008.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy. - Additional Creators:
- Fermi National Accelerator Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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- Restrictions on Access:
- Free-to-read Unrestricted online access
- Summary:
- The authors search for b → sμ⁺μ⁻ transitions in B meson (B⁺, B°, or B{sub s}°) decays with 924 pb⁻¹ of p{bar p} collisions at √s = 1.96 TeV collected with the CDF II detector at the Fermilab Tevatron. They find excesses with significances of 4.5, 2.9, and 2.4 standard deviations in the B⁺ → μ⁺μ⁻K⁺, B° → μ⁺μ⁻K*(892)°, and B{sub s}° → μ⁺μ⁻φ decay modes, respectively. Using B → J/ψh (h - K⁺, K*(892)°, φ) decays as normalization channels, they report branching fractions for the previously observed B⁺ and B° decays as normalization channels, they report branching fractions for the previously observed B⁺ and B° decays, Β(B⁺ → μ⁺μ⁻K⁺) = (0.59 ± 0.15 ± 0.04) x 10⁻⁶, and Β(B° → μ⁺μ⁻K*(892)°) = (0.81 ± 0.30 ± 0.10) x 10⁻⁶, where the first uncertainty is statistical, and the second is systematic. These measurements are consistent with the world average results, and are competitive with the best available measurements. They set an upper limit on the relative branching fraction Β(B{sub s}°→μ⁺μ⁻φ)/Β(B{sub s}°→J/ψφ) < 2.6(2.3) x 10⁻³ at the 95(90)% confidence level, which is the most stringent to date.
- Report Numbers:
- E 1.99:fermilab-pub-08-094-e
fermilab-pub-08-094-e - Subject(s):
- Other Subject(s):
- Note:
- Published through SciTech Connect.
04/01/2008.
"fermilab-pub-08-094-e"
"arXiv eprint number arXiv:0804.3908"
FT
Aaltonen, T.; Adelman, J.; Alvarez Gonzalez, B.; Amerio, S.; Amidei, D.; Anastassov, A.; Annovi, A.; Antos, J.; Apollinari, G.; Akimoto, T.; Albrow, M.G. - Funding Information:
- AC02-07CH11359
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