Measurement Of The Drell Yan Differential Cross Section And Forward Backward Asymmetry In P Bar P U2192 E E Events Using The D0 Detector
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Measurement Of The Drell Yan Differential Cross Section And Forward Backward Asymmetry In P Bar P U2192 E E Events Using The D0 Detector
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Author :
language : en
Publisher:
Release Date : 2005
Measurement Of The Drell Yan Differential Cross Section And Forward Backward Asymmetry In P Bar P U2192 E E Events Using The D0 Detector 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.
We present measurements of the inclusive Drell-Yan e+ e- differential cross section (d?/dMe+ e- and forward-backward asymmetry (AFB) as a function of the dielectron invariant mass over the range 70-400 GeV/c2. The data sample consists of 177.3 pb-1 of p$ar{p}$ collisions at √s = 1.96 TeV collected by the D0 detector. The results are consistent with the predictions of the standard model.
Measurement Of The Drell Yan Differential Cross Section And Forward Backward Asymmetry In Proton Anti Proton E E Events Using The D0 Detector
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Author : Raymond Gelhaus
language : en
Publisher:
Release Date : 2005
Measurement Of The Drell Yan Differential Cross Section And Forward Backward Asymmetry In Proton Anti Proton E E Events Using The D0 Detector written by Raymond Gelhaus 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.
We present measurements of the inclusive Drell-Yan e{sup +}e{sup -} differential cross section (d{sigma}/dM{sub e{sup +}e{sup -}}) and forward-backward asymmetry (A{sub FB}) as a function of the dielectron invariant mass over the range 70-400 GeV/c{sup 2}. The data sample consists of 177.3 pb{sup -1} of p{bar p} collisions at {radical}s = 1.96 TeV collected by the D0 detector. The results are consistent with the predictions of the standard model.
Measurement Of The Drell Yan Differential Cross Section And Forward Backward Asymmetry In Proton Anti Proton E E Events Using The D0 Detector
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Author :
language : en
Publisher:
Release Date : 2006
Measurement Of The Drell Yan Differential Cross Section And Forward Backward Asymmetry In Proton Anti Proton E E Events Using The D0 Detector 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.
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A Measurement Of The Inclusive Differential Drell Yan Cross Section With Dimuons At Sqrt S
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Author : Victor Emanuel Scarpine
language : en
Publisher:
Release Date : 1992
A Measurement Of The Inclusive Differential Drell Yan Cross Section With Dimuons At Sqrt S written by Victor Emanuel Scarpine and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with categories.
The inclusive differential Drell-Yan cross section is measured from the analysis of $bar{p}ptogammatomusp+musp-X$ events at a center-of-mass energy of $sqrt{s}$ = 1.8 TeV at the Fermilab Tevatron collider. The dimuon events are accepted in the central pseudorapidity region of $-0.6
Measurement Of The Differential And Double Differential Drell Yan Cross Sections In Proton Proton Collisions At Sqrt S
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Author :
language : en
Publisher:
Release Date : 2013
Measurement Of The Differential And Double Differential Drell Yan Cross Sections In Proton Proton 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.
Measurements of the differential and double-differential Drell-Yan cross sections are presented using an integrated luminosity of 4.5(4.8) inverse femtobarns in the dimuon (dielectron) channel of proton-proton collision data recorded with the CMS detector at the LHC at sqrt{s} = 7 TeV. The measured inclusive cross section in the Z-peak region (60-120 GeV) is \sigma(\ell \ell) = 986.4 +/- 0.6 (stat.) +/- 5.9 (exp. syst.) +/- 21.7 (th. syst.) +/- 21.7 (lum.) pb for the combination of the dimuon and dielectron channels. Differential cross sections $d\sigma/dm$ for the dimuon, dielectron, and combined channels are measured in the mass range 15 to 1500 GeV and corrected to the full phase space. Results are also presented for the measurement of the double-differential cross section d2̂\sigma/dm d.
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>
Measurement Of The Diphoton Differential Cross Section In P Bar P Collisions At Square Root S
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Author : Joshua Marc Dyer
language : en
Publisher:
Release Date : 2007
Measurement Of The Diphoton Differential Cross Section In P Bar P Collisions At Square Root S written by Joshua Marc Dyer and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Differential cross sections categories.
Measurement Of The Double Differential Diject Mass Cross Section In Pp Bar Collisions At Sqrt S
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Author :
language : en
Publisher:
Release Date : 2009
Measurement Of The Double Differential Diject Mass Cross Section In Pp Bar 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 2009 with categories.
This thesis presents the analysis of the double differential dijet mass cross section, measured at the D0 detector in Batavia, IL, using p{bar p} collisions at a center of mass energy of (square root)s = 1.96 TeV. The dijet mass was calculated using the two highest p{sub T} jets in the event, with approximately 0.7 fb−1 of data collected between 2004 and 2005. The analysis was presented in bins of dijet mass (M{sub JJ}) and rapidity (y), and extends the measurement farther in M{sub JJ} and y than any previous measurement. Corrections due to detector effects were calculated using a Monte Carlo simulation and applied to data. The errors on the measurement consist of statistical and systematic errors, of which the Jet Energy Scale was the largest. The final result was compared to next-to-leading order theory and good agreement was found. These results may be used in the determination of the proton parton distribution functions and to set limits on new physics.
Measurement Of Differential Cross Sections In The Ttbar L Jets Channel
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Author :
language : en
Publisher:
Release Date : 2009
Measurement Of Differential Cross Sections In The Ttbar L Jets Channel written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with categories.
The analysis presented in this thesis focuses on kinematic distributions in the t{bar t} system and studies in detail selected differential cross sections of top quarks as well as the reconstructed t{bar t} pair, namely the top quark transverse momentum and the t{bar t} system mass. The structure of the thesis is organized as follows: first the Standard Model of the particle physics is briefly introduced in Chapter 1, with relevant aspects of electroweak and strong interactions discussed. The physics of the top quark and its properties are then outlined in Chapter 2, together with the motivation for measuring the transverse top quark momentum and other kinematic-related variables of the t{bar t} system. The concepts of present-day high energy physics collider experiments and the explicit example of Fermilab Tevatron collider and the D0 detector in Chapters 3 and 4 are followed by the description of basic detector-level objects, i.e. tracks, leptons and jets, in Chapter 5; their identification and calibration following in next chapter with the emphasis on the jet energy scale in Chapter 6 and jet identification at the D0. The analysis itself is outlined in Chapter 7 and is structured so that first the data and simulation samples and the basic preselection are described in Chapter 8 and 9, followed by the kinematic reconstruction part in Chapter 10. Chapter 11 on background normalization and Chapter 12 with raw reconstructed spectra results (at the detector-smeared level) are followed by the purity-based background subtraction method and examples of signal-level corrected spectra in Chapter 13. Next, the procedure of correcting measured spectra for detector effects (unfolding) is described in Chapters 14-15, including migration matrix studies, acceptance correction determination as well as the regularized unfolding procedure itself. Final differential cross sections are presented in Chapter 16 with the main results in Figures 16.19-16.20. Summary and discussion close the main analysis part in Chapter 17, supplemented by appendices on the wealthy of analysis control plots of the t{bar t} → l + jets channel, selected D0 event displays and finally the list of publications and references. Preliminary results of this analysis have been documented in D0 internal notes [UnfoldTop], [p17Top], [p14Top]; as well as presented at conferences [APS08], [APS05]. The author has also been a co-author of more than 135 D0 collaboration publications since 2005. The author has taken part in the jet energy scale calibration efforts performing final closure tests and deriving a correction to jet energy offset due to the suppression of the calorimeter signal. The author has also co-performed the [phi]-intercalibration of the hadronic calorimeter and co-supervised the electromagnetic [phi]-intercalibration; recently has also been involved in maintaining the jet identification efficiencies measurement as a JetID convener. During the years in Fermilab, many events have taken place in the course of the analysis in persuasion, including more than 170 shifts served for the D0 detector with or without the beam, 168 talks presented with mixed results and reactions; and tens of thousands of code lines in C (and sometimes perhaps even really C++) written while terabytes of data were processed, analyzed, and sometimes also lost. It has been a long but profoundly enriching chapter of my life.
Measurement Of The Cross Section At D0 Using Dimuons
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Author :
language : en
Publisher:
Release Date : 1995
Measurement Of The Cross Section At D0 Using Dimuons written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with categories.