2007/07/18 by V. Krutelyov, Krutelyov, V.
Engineering · Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Superconducting Materials and Applications #hep-ex
paper · pdf · doi:10.48550/arxiv.0707.2820
in proceedings of Hadron Collider Physics Symposium, Duke University, NC, May 22-26 2006
arxiv created 2007/07/18 · openalex publication_date 2007/07/18 · arxiv updated 2019/08/14 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
In this report I review recent results in the field of rare decays at the Tevatron CDF II and D0 experiments. The presentation is focused on rare decays of charm and bottom mesons with two muons in the final state. This includes improvements over the previously available limits on the following branching ratios: B(D+ → π+ μ+ μ-)< 4.7 × 10-6, B(Bs0 → ϕμ+ μ-)< 3.2× 10-6, B(Bs0 → μ+ μ-)< 1 × 10-7, and B(Bd0)< 3 × 10-8 all at the 90% confidence level. Also reported are the first direct observation of Ds+ → ϕπ+ → μ+ μ- π+ with a significance above background of over 7 standard deviations and evidence of D+ → ϕπ+ → μ+ μ- π+ with a significance of 3.1 and B(D+ → ϕπ+ → μ+ μ- π+)=(1.75 ±0.7 ±0.5) × 10-6.