27,527 research outputs found
Standard Model high mass Higgs search at CDF
No full textThe CDF collaboration has analyzed almost 6 f b−1 of data collected at the Tevatron Collider at sqrt(s) = 1.96 TeV to search for Standard Model Higgs boson through the decay into W+W−. Starting from events with two leptons, advanced analysis techniques are applied to better discriminate signal from background. The Higgs sensitivity is maximized combining together analysis that exploit different event topologies. No significant excess over the expected background is observed and data is used to set a limit in units of Standard Model expectations. The limit plays a fundamental role in the Higgs search excluding the existence of this particle with mass between 158 and 175 GeV/c2 when combined with D0, the other Tevatron experiment
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Top Quark Physics at the CDF Experiment
No full textFermilab's Tevatron accelerator is recently performing at record luminosities that enables a program systematically addressing the physics of top quarks. The CDF collaboration has analyzed up to 5 fb{sup -1} of proton anti-proton collisions from the Tevatron at a center of mass energy of 1.96 TeV. The large datasets available allow to push top quark measurements to higher and higher precision and have lead to the recent observation of electroweak single top quark production at the Tevatron. This article reviews recent results on top quark physics from the CDF experiment
Analysis of Bs->phiphi decay mode
No full textAn interesting decay mode of the Bs meson is into a phi pair: this is a
vector-vector decay dominated by b->sss penguin transition which is a
sensitive probe for possible new physics effects. The only existing sample
of this mode was reconstructed by the CDF experiment from 0.2 fb-1 of data,
and consisted of only 8 signal events. Here we present new results based
on a clean sample of about 300 Bs->phiphi decays reconstructed by the CDFII
detector in a dataset with an integrated luminosity of about 3 fb-1
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