767 research outputs found

    CKM Reach at Hadronic Colliders

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    The analysis of the CKM parameters will take a leap forward when the hadronic B factories receive their first data. I describe the challenges faced by B-physics at hadronic colliders and the expected reach in specific channels for the LHCb, BTeV, ATLAS and CMS experiments.Comment: Invited talk at the Workshop on the CKM Unitarity Triangle, IPPP Durham, April 2003 (eConf C0304052). 6 pages LaTeX, 6 eps file

    Rare bb-hadron decays

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    Feeding Behaviour of the Mussel, Mytilus edulis

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    Under optimal conditions, bivalves tend to filter the ambient water at a maximum rate but under suboptimal environmental conditions, including low or very high algal concentrations, the filtration rate is reduced. The upper algal concentration at which the blue mussel, Mytilus edulis, exploits its filtration capacity over an extended period of time was identified by stepwise raising the algal (Rhodomonas salina) concentration in steady-state experiments above the threshold for continuous high filtration rate. The duration time before incipient saturation reduction decreased with increasing algal concentration, and the threshold concentration for incipient saturation reduction of filtration activity was found to be between about 5,000 and 8,000 cells mL−1, equivalent to 6.3 and 10.0 μg chl a L−1, respectively. Reduced filtration rate was related to total number of algal cells ingested previous to incipient saturation and found to be 11.4±1.7×106 cells. Video-microscope recordings of pseudofaeces production revealed that the trigger threshold concentration for formation of pseudofaeces was about 12,000 cells mL−1. Faeces produced by saturated mussels consisted of closely packed undigested algal cells, indicating severe overloading of the digestive system caused by high algal concentrations which mussels are not evolutionary adapted to cope with

    Summary of Working Group 4: Mixing and mixing-related CP violation in the B system: Δm, , Φs, Φ1/β, Φ2/α, Φ3/γ

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    This summary reviews contributions to the CKM 2021 workshop in Working Group 4. In particular, theoretical and experimental progress in determining B meson mixing properties are discussed