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We have measured the branching ratio for the inclusive radiative penguin process b ! ss. We nd where the rst error is statistical, the second error is the additive systematic error from uncertainty in yield, and the third error is the multiplicative systematic error from uncertainty in eeciency, which includes model dependence .
We search for the decay B ? ! ? in a sample of over 2 million charged B decays using the CLEO detector. We use the channel in which the tau decays leptonically, and combine this lepton with the missing energy and momentum in the event to form a B candidate. A t to the mass and energy distribution of these B candidates yields ?14 46 signal events. This value… (More)
A high statistics measurement of the Lambda(+)(c) lifetime from the Fermilab fixed-target FOCUS photoproduction experiment is presented. We describe the analysis technique with particular attention to the determination of the systematic uncertainty. The measured value of 204.6 +/- 3.4 (stat) +/- 2.5 (syst) fs from 8034 +/- 122 Lambda(+)(c)-->pK(-)pi(+)… (More)
We discuss the physics goals and rationale for a detector to study Beauty and Charm decays in the forward direction at the Fermilab Tevatron. We then describe the BTeV detector which has been designed to achieve these goals and present its physics reach based on extensive simulation. We conclude by comparing BTeV to other experiments designed to explore… (More)
We have measured the spectral shape Michel parameters and using lep-tonic decays of the , recorded by the CLEO II detector. Assuming e ? uni-versality, we nd ee = 0:7350:0130:008 and ee = ?0:0150:0610:062, where the rst error is statistical and the second systematic.
A Constraint on jV td =V ts j from B ! (!)=B ! K. Abstract We have searched for the decays, B ! and B ! !, which in conjunction with the measurement of B ! K , can provide a direct determination of the ratio between the CKM matrix elements, V td and V ts. No signals were observed and we set the following upper limits Using diierent theoretical models, we… (More)
We review genetic programming principles, their application to FOCUS data samples , and use the method to study the doubly Cabibbo suppressed decay D + → K + π + π − relative to its Cabibbo favored counterpart, D + → K − π + π +. We find that this technique is able to improve upon more traditional analysis methods. To our knowledge, this is the first… (More)
Rettungsdienste sind ein wichtiger Bestandteil der Gefahrenabwehr und der Gesundheitsvorsorge. Die Arbeit des Rettungsfachpersonals und der Notärzte ist geprägt von zahlreichen täglichen Routineeinsätzen (Krankentransporte, individualmedizinische Notfälle) einerseits und außergewöhnlichen Einsatzlagen bei einem Massenanfall von Verletzten (MANV)… (More)