Measurement Of The Ratio Of Differential Cross Sections Sigma P Bar P To Z B Jet Sigma P Bar P To Z Jet In P Bar P Collisions At Sqrt S

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Measurement Of The Ratio Of Differential Cross Sections Sigma P Bar P To Z B Jet Sigma P Bar P To Z Jet In P Bar P Collisions At Sqrt S

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Author :
language : en
Publisher:
Release Date : 2013

Measurement Of The Ratio Of Differential Cross Sections Sigma P Bar P To Z B Jet Sigma P Bar P To Z Jet In P Bar P Collisions At Sqrt S written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with categories.

A Measurement Of The Ratio Of Inclusive Cross Sections Sigma P Bar P Rightarrow Z B Rm Jet Sigma P Bar P Rightarrow Z Rm Jet At Sqrt S

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Author :
language : en
Publisher:
Release Date : 2010

A Measurement Of The Ratio Of Inclusive Cross Sections Sigma P Bar P Rightarrow Z B Rm Jet Sigma P Bar P Rightarrow Z Rm Jet At Sqrt S written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with categories.

The ratio of the cross section for p{bar p} interactions producing a Z boson and at least one b quark jet to the inclusive Z+jet cross section is measured using 4.2 fb−1 of p{bar p} collisions collected with the D0 detector at the Fermilab Tevatron collider at √s = 1.96 TeV. The Z → l+l− candidate events with at least one b jet are discriminated from Z+ charm and light jet(s) events by a novel technique that exploits the properties of the tracks associated to the jet. The measured ratio is 0.0193 ± 0.0027 for events having a jet with transverse momentum p{sub T} > 20 GeV and pseudorapidity.

Measurement Of The Ratio Of Inclusive Cross Sections Sigma Z B Jet Sigma Z Jet In The Dilepton Final States

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Author : Kenneth James Smith
language : en
Publisher:
Release Date : 2011

Measurement Of The Ratio Of Inclusive Cross Sections Sigma Z B Jet Sigma Z Jet In The Dilepton Final States written by Kenneth James Smith and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with categories.

The inclusive production of $b$-jets with a $Z$ boson is an important background to searches for the Higgs boson in associated $ZH \rightarrow llb\bar{b}$ production at the Fermilab Tevatroncollider. This thesis describes the most precise measurement to date of the ratio of inclusive cross sections $\sigma(p\bar{p} \rightarrow Z+b$-jet$)/\sigma(p\bar{p} \rightarrow Z+$jet$)$ when a $Z$ boson decays into two electrons or muons. The measurement uses a data sample from $p\bar{p}$ collisions at the center of mass energy $\sqrt{s}=1.96$ TeV corresponding to an integrated luminosity of 4.2 fb$^{-1}$ collected by the D0 detector. The measured ratio $\sigma(Z+b$-jet$)/\sigma(Z+$jet$)$ is $0.0187\pm0.0021(stat.) \pm0.0015(syst)$ for jets with transverse momentum $p_T$~$>$~20 GeV and pseudorapidity $\eta\leq$2.5. The measurement is compared with the next-to-leading order theoretical predictions from MCFM and is found to be consistent within uncertainties.

Measurement Of The Ratio Of Inclusive Cross Sections Sigma P Bar P Rightarrow Z 2 B Text Jets

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Author :
language : en
Publisher:
Release Date : 2015

Measurement Of The Ratio Of Inclusive Cross Sections Sigma P Bar P Rightarrow Z 2 B Text Jets written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with categories.

Measurement Of The Ratio Of Three Jet To Two Jet Cross Sections In P Bar P Collisions At Sqrt S

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Author :
language : en
Publisher:
Release Date : 2012

Measurement Of The Ratio Of Three Jet To Two Jet Cross Sections In P Bar P Collisions At Sqrt S written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with categories.

First Measurement Of The Ratio Sigma T Tbar

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Author :
language : en
Publisher:
Release Date : 2010

First Measurement Of The Ratio Sigma T Tbar written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with categories.

We report a measurement of the ratio of the t{bar t} to Z/[gamma]* production cross sections in √s = 1.96 TeV p{bar p} collisions using data corresponding to an integrated luminosity of up to 4.6 fb−1, collected by the CDF II detector. The t{bar t} cross section ratio is measured using two complementary methods, a b-jet tagging measurement and a topological approach. By multiplying the ratios by the well-known theoretical Z/[gamma]* → ll cross section predicted by the standard model, the extracted t{bar t} cross sections are effectively insensitive to the uncertainty on luminosity. A best linear unbiased estimate is used to combine both measurements with the result [sigma]{sub t{bar t}} = 7.70 ± 0.52 pb, for a top-quark mass of 172.5 GeV/c2.

Z Gamma Cross Section Measurement Sigma Br Z Gamma In The Electron Channel For P Bar P Collisions At Sqrt S

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Author :
language : en
Publisher:
Release Date : 1994

Z Gamma Cross Section Measurement Sigma Br Z Gamma In The Electron Channel For P Bar P Collisions At Sqrt S written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with categories.

The Z+[gamma] cross-section x branching ratio in the electron channel has been measured using the inclusive Z data sample from the CDF '88-'89 collider run, for which the total integrated luminosity was 4.05 ± 0.28 pb-1.

Measurement Of The Ratio Of Inclusive Cross Sections Sigma P Anti P Z B Jet

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Author :
language : en
Publisher:
Release Date : 2006

Measurement Of The Ratio Of Inclusive Cross Sections Sigma P Anti P Z B Jet written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with categories.

Abstract Not Provided.

Measurement Of W And Z Production Cross Sections In P Bar P Collisions At Radical

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Author :
language : en
Publisher:
Release Date : 2005

Measurement Of W And Z Production Cross Sections In P Bar P Collisions At Radical written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with categories.

The cross sections for W and Z production in p[bar p] collisions at [radical]s = 1.8 TeV are measured using the D0 detector at the Fermilab Tevatron collider. The detected final states are W [yields] ev[sub e], Z [yields] e[sup +]e[sup [minus]], W [yields] [mu]v[sub [mu]], and Z [yields] [mu][sup +][mu][sup [minus]]. In the ratio of these measurements, many common sources of systematic error cancel and we measure R = [sigma], (p[bar p] [yields] W) [center-dot] Br(W [yields] lv)/ [sigma], (p[bar p] [yields] Z) [center-dot] Br(Z [yields] l[sup +]l[sup [minus]]). Assuming standard model couplings, this result is used to determine the width of the W bosom and to set a limit on the decay W[sup +] [yields] t[bar b].

Measurement Of The Differential Cross Section D Sigma Dt In Elastic P Bar P Scattering At Sqrt S

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Author :
language : en
Publisher:
Release Date : 2012

Measurement Of The Differential Cross Section D Sigma Dt In Elastic P Bar P Scattering At Sqrt S written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with categories.

We present a measurement of the elastic differential cross section differential cross section d?(p{bar p}→p{bar p})/dt as a function of the four-momentum-transfer squared t. The data sample corresponds to an integrated luminosity of ≈31 nb−1 collected with the D0 detector using dedicated Tevatron p{bar p} Collider operating conditions at √s = 1.96 TeV and covers the range 0.26>