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Total Pages | : 4 |
Release | : 2007 |
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Download Recent Results in B Quark Physics at CDF. Book in PDF, ePub and Kindle
The summer 2007 results in b quark physics in 0.7 to 2.2 fb−1 of CDFII data are summarized. Results in b production, mixing, new observations and branching ratio measurements are discussed.
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Total Pages | : 19 |
Release | : 1998 |
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Download Recent Results on Top Quark Physics and B Physics at CDF. Book in PDF, ePub and Kindle
We present the recent results on top quark physics and B physics with the Collider Detector at Fermilab (CDF). These results come from analyses using a full data sample at an integrated luminosity of 109 pb−1 cross section in 1.8-TeV p{anti p} collisions. We measure the top quark mass to be 175.8±6.5 GeV/c2 and the t{anti t} production cross section to be 7.6{sup +1.8}{sub -1.5} pb. We also present measurements of the lifetimes of B-hadrons and the time- dependent B°-{anti B}° mixing which results in the mass difference between heavy and light B°{sub d} mesons ([Delta]m{sub d}) of 0.464±0.030(stat)±0.026(syst) ps−1.
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Release | : 2001 |
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Download Recent Results on Top Quark Physics at CDF. Book in PDF, ePub and Kindle
We present the latest results on the top quark obtained by the CDF experiment using a data sample of about 110 pb[sup -1]. The data sample has been collected at the FermiLab Tevatron Collider with p[anti p] collisions at[radical]s= 1.8 TeV. We briefly describe the candidate event selection and then discuss the production cross section determination and the mass measurement. Combining the results from the channels with at least one W decaying leptonically into an electron or muon, we measure[sigma][sub t[anti t]]= 7.5[sup+1.9][sub -1.6] pb. Our best measured value for the top mass gives M[sub t]= 176.8[+-]6.5 GeV/c[sup 2]. We also report on the observation of t[anti t] production in the all hadronic decay channel using kinematic selection and b identification, and in the channel containing one hadronically decaying[tau] lepton. Finally we discuss the kinematics of top events and measure the matrix element[vert-bar]V[sub tb][vert-bar]=1.12[+-]0.12.
Author | : Jiro Kodaira |
Publisher | : World Scientific |
Total Pages | : 255 |
Release | : 1998-09-02 |
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ISBN | : 9814544876 |
Download Qcd Corrections And New Physics - Proceedings Of The International Symposium Book in PDF, ePub and Kindle
This book discusses recent developments in both the theoretical and the experimental aspects of QCD. Its main goal is to establish precise predictions of the Standard Model in order to find clues to the discovery of New Physics.
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Total Pages | : 22 |
Release | : 1992 |
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Download CDF Book in PDF, ePub and Kindle
We present recent results from the Collider Detector at Fermilab. Searches for the top quark have established a lower bound of M{sub top}> 91 GeV/c2 (at 95% confidence level). A measurement of B{sup o}{bar B}{sup o} mixing has been obtained from b{bar b} 2!e[mu], ee events. Measurements of b-quark production have been obtained from e + X events and J/[psi] + K events. The mass of the W boson has been determined to be M{sub W} = 79.91 {plus minus} 0.39 GeV/c2. In searching for new gauge bosons, we have obtained the bounds M{sub Z{prime}}> 412 GeV/c2 and M{sub W{prime}}> 520 GeV/c2 (at 95% C.L.). The lower limits on the quark and lepton compositeness scales are 1.4 TeV. In the next two years of data collection, we expect significantly more events for numerous types of physics, due to 25 times more beam luminosity, and improvement to the detector. In the longer term, the Main Injector'' upgrade to the accelerator, further improvements to the detector are being planned to exploit the potentials for physics. We discuss prospects for the discovery of the top quark, precise measurement of properties of b quark, and searches for new physics beyond the Standard Model. 29 refs.
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Release | : 1930 |
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Download Recueil factice de coupures de presse parues dans la Gazette de l'Hôtel Drouot, relatives à des ventes aux enchères publiques, ayant eu lieu du 4 juin au 28 septembre 1930. Paris et province Book in PDF, ePub and Kindle
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Total Pages | : 14 |
Release | : 1996 |
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Download Top Quark Physics Results from CDF and D-Zero Book in PDF, ePub and Kindle
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Total Pages | : 26 |
Release | : 1997 |
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Download CDF Evidence for the Top Quark & B Physics at Fermilab Book in PDF, ePub and Kindle
We present the first direct evidence for the top quark with the Collider Detector at Fermilab (CDF) in a sample of {bar p}p collisions at (square root)s=1.8 TeV with an integrated luminosity of 19.3 pb−1. The recent B physics results at Fermilab from both collider and fixed target experiments are reviewed.
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Total Pages | : 6 |
Release | : 2010 |
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Download B Physics at CDF - the Beauty of Hadron Collisions Book in PDF, ePub and Kindle
The CDF experiment at the Tevatron p{bar p} collider established that extensive and detailed exploration of the b-quark dynamics is possible in hadron collisions, with results competitive and supplementary to those from ee− colliders. This provides an unique, rich, and highly rewarding program that is currently reaching full maturity. I report a few recent world-leading results on rare decays, CP-violation in B{sub s}° mixing, and b --> s penguin decays.
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Total Pages | : 560 |
Release | : 1994 |
Genre | : Aeronautics |
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Download Scientific and Technical Aerospace Reports Book in PDF, ePub and Kindle