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# Search results

1,246 records were found.

## Measurements of Inclusive and Exclusive B Decays to Charmonium with BABAR

Comment: 15 pages, 1 postscript figures, contributed to Proceedings of the ICHEP2000 Conference

## Have changes to meat and poultry food safety regulation in Australia affected the prevalence of Salmonella or of salmonellosis?

John Sumner, Geoff Raven, Rod Givney

## Report of the LHC Computing Grid Project. RTAG 12: Collaborative Tools

This document is the final report of the LHC Computing Grid (LCG) Project's Requirements and Technical Assessment Group (RTAG 12) on Collaborative Tools. It presents a summary of the requirements of the LHC collaborations for Collaborative Tools, assesses the current status of those tools in common use, discusses likely relevant future development, and provides recommendations for action by the LCG, the collaborations, and CERN for the immediate and long-term future. The requirements and assessments were assembled from formal and informal interactions between members of the RTAG, representatives of the LHC collaborations, CERN IT, and experts in the field of Collaborative Tools.

## Application of vertex and mass constraints in track-based alignment

Comment: 18 pages, 6 figures

## Neutral-Current Four-Fermion Production in $e^+ e^-$ Interactions at 130 GeV $\leq \sqrt{s} \leq$ 172 GeV

A study of neutral-current four-fermion processes is performed, using data collected by the L3 detector at LEP during high-energy runs at centre-of-mass energies 130 - 136, 161 and 170 - 172 GeV, with integrated luminosities of 4.9, 10.7 and 10.1 pb$^{-1}$, respectively. The total cross sections for the final states $\ell\ell \ell^\prime \ell^\prime$ and $\rm \ell\ell qq$ ($\ell$,~$\ell^\prime$ = e, $\mu$ or $\tau$) are measured and found to be in agreement with the Standard Model prediction.

## Measurement of Inclusive $\omega$ and $\eta$' Production in Hadronic Z Decays

We present a study of the inclusive $\omega$ and $\eta^{\prime}$ production based on 3.1 million hadronic Z decays recorded with the L3 detector at LEP during 1991--1994. The production rates per hadronic Z decay have been measured to be $1.17 \pm 0.17$ $\omega$ mesons and $0.25 \pm 0.04$ $\eta^{\prime}$ mesons. The production rates and the differential cross sections have been compared with predictions of the JETSET and the HERWIG Monte Carlo models. We have observed that the differential cross sections can be described by an analytical quantum chromodynamics calculation. \end{document}