Measurement Of Inclusive Jet Cross Sections In Z U2192 E E Jets Production In P Bar P Collisions At U221a S
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Measurement Of Inclusive Jet Cross Sections In Z U2192 E E Jets Production In P Bar P Collisions At U221a S
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Author :
language : en
Publisher:
Release Date : 2008
Measurement Of Inclusive Jet Cross Sections In Z U2192 E E Jets Production In P Bar P Collisions At U221a 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 2008 with categories.
This Ph.D. thesis presents the measurement of inclusive jet cross sections in Z/?*→ e+e- events using 1.7 fb-1 of data collected by the upgraded CDF detector during the Run II of the Tevatron. The Midpoint cone algorithm is used to search for jets in the events after identifying the presence of a Z/?* boson through the reconstruction of its decay products. The measurements are compared to next-to-LO (NLO) pQCD predictions for events with one and two jets in the final state. The perturbative predictions are corrected for the contributions of non-perturbative processes, like the underlying event and the fragmentation of the partons into jets of hadrons. These processes are not described by perturbation theory and must be estimated from phenomenological models. In this thesis, a number of measurements are performed to test different models of underlying event and hadronization implemented in LO plus parton shower Monte Carlo generator programs. Chapter 2 is devoted to the description of the theory of strong interactions and jet phenomenology at hadron colliders. Chapter 3 contains the description of the Tevatron collider and the CDF detector. The analysis is described in detail in Chapter 4. Chapter 5 shows the measurement of those observables sensitive to non-perturbative effects compared to the predictions from several Monte Carlo programs. Chapter 6 discusses the final results and the comparison with theoretical expectations. Finally, Chapter 7 is devoted to the conclusions.
Measurement Of The Z U2192 E E U2265 N Jet Production Cross Sections In P Bar P Collisions At U221a S
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Author :
language : en
Publisher:
Release Date : 2005
Measurement Of The Z U2192 E E U2265 N Jet Production Cross Sections In P Bar P Collisions At U221a 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 2005 with categories.
A study of events with Z/?* bosons and hadronic jets produced at the Tevatron in p$ar{p}$ collisions at a center of mass energy of 1.96 TeV is presented. The data consist of approximately 14,000 Z/?* → e+e- decay candidates from 343 pb-1 of integrated luminosity collected with the D0 detector. Cross sections and jet production properties have been measured for Z/?* + ≥ 0 to 5 jet events. This measurement represents a significant improvement over previous measurements at the Tevatron, and it is the first at this center of mass energy with the D0 detector. The results are in good agreement with QCD predictions.
Measurement Of The Inclusive Jet Cross Section Using The K T Algorithm In P Anti P Collisions At S 1 2
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Author :
language : en
Publisher:
Release Date : 2005
Measurement Of The Inclusive Jet Cross Section Using The K T Algorithm In P Anti P Collisions At S 1 2 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 authors report on a measurement of the inclusive jet production cross section in p{bar p} collisions at √s = 1.96 TeV using data collected with the upgraded Collider Detector at Fermilab in Run II (CDF II) corresponding to an integrated luminosity of 385 pb−1. Jets are reconstructed using the k{sub T} algorithm. The measurement is carried out for jets with rapidity 0.1
Measurement Of Inclusive Jet Cross Sections In Z Gamma E E Jets Production In P Anti P Collisions At S 1 2
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Author :
language : en
Publisher:
Release Date : 2007
Measurement Of Inclusive Jet Cross Sections In Z Gamma E E Jets Production In P Anti P Collisions At S 1 2 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with categories.
Inclusive jet cross sections in Z/[gamma]* events, with Z/[gamma]* decaying into an electron-positron pair, are measured as a function of jet transverse momentum and jet multiplicity in p{bar p} collisions at √s - 1.96 TeV with the upgraded Collider Detector at Fermilab in Run II, based on an integrated luminosity of 1.7 fb−1. The measurements cover the rapidity region
Measurement Of The Ratio Of Inclusive Cross Sections P Bar P U2192 Z B Jet P Bar P U2192 Z Jet In The Dilepton Final States
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Author :
language : en
Publisher:
Release Date : 2010
Measurement Of The Ratio Of Inclusive Cross Sections P Bar P U2192 Z B Jet P Bar P U2192 Z Jet In The Dilepton Final States 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 inclusive production of b-jets with a Z boson is an important background to searches for the Higgs boson in associated ZH → llb$ar{b}$ production at the Fermilab Tevatron collider. This thesis describes the most precise measurement to date of the ratio of inclusive cross sections ?(p$ar{p}$ → Z + b-jet)/?(p$ar{p}$ → Z + jet) when a Z boson decays into two electrons or muons. The measurement uses a data sample from p$ar{p}$ collisions at the center of mass energy √s = 1.96 TeV corresponding to an integrated luminosity of 4.2 fb-1 collected by the D0 detector. The measured ratio ?(Z + b-jet)/?(Z + jet) is 0.0187 ± 0.0021(stat) ± 0.0015(syst) for jets with transverse momentum pT > 20 GeV and pseudorapidity.
Measurement Of Inclusive Jet Cross Sections In Z E E Jets Production In Pp Collisions At S
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Author : Oriol Saltó Bauzà
language : en
Publisher:
Release Date : 2008
Measurement Of Inclusive Jet Cross Sections In Z E E Jets Production In Pp Collisions At S written by Oriol Saltó Bauzà and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with categories.
Measurement Of The Inclusive Jet Cross Section In P Bar P Collisions At Cdf
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Author :
language : en
Publisher:
Release Date : 1993
Measurement Of The Inclusive Jet Cross Section In P Bar P Collisions At Cdf written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with categories.
The status of the CDF inclusive jet cross section measurement from the 1992--1993 run of the Fermilab Tevatron is described. The E{sub T} range of the jets extends from 15 to 420 GeV. Corrections are made to the measured cross section to obtain a true transverse energy spectrum. The corrected cross section is compared with next-to-leading order (NLO) QCD calculations and to the 1989 CDF data.
Inclusive Jet Cross Section At Cdf
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Author :
language : en
Publisher:
Release Date : 2005
Inclusive Jet Cross Section At Cdf 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.
This contribution reports on preliminary measurements of the inclusive jet production cross section in p{bar p} collisions at √s = 1.96 TeV using data collected with CDF corresponding to an integrated luminosity of 385 pb−1. Two analyzes are presented: one uses the longitudinally invariant k{sub T} algorithm to reconstruct the jets, the other uses the midpoint algorithm. Both are limited to jets with rapidity in the range 0.1
Measurement Of Inclusive Jet Cross Sections In Z Gamma E E Jets Production In Ppbar Collisions At S 1 2
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Author :
language : en
Publisher:
Release Date : 2008
Measurement Of Inclusive Jet Cross Sections In Z Gamma E E Jets Production In Ppbar Collisions At S 1 2 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with categories.
This Ph. D. thesis presents the measurement of inclusive jet cross sections in Z/[gamma]* 2!ee− events using 1.7 fb−1 of data collected by the upgraded CDF detector during the Run II of the Tevatron. The Midpoint cone algorithm is used to search for jets in the events after identifying the presence of a Z/[gamma]* boson through the reconstruction of its decay products. The measurements are compared to next-to-LO (NLO) pQCD predictions for events with one and two jets in the final state. The perturbative predictions are corrected for the contributions of non-perturbative processes, like the underlying event and the fragmentation of the partons into jets of hadrons. These processes are not described by perturbation theory and must be estimated from phenomenological models. In this thesis, a number of measurements are performed to test different models of underlying event and hadronization implemented in LO plus parton shower Monte Carlo generator programs. Chapter 2 is devoted to the description of the theory of strong interactions and jet phenomenology at hadron colliders. Chapter 3 contains the description of the Tevatron collider and the CDF detector. The analysis is described in detail in Chapter 4. Chapter 5 shows the measurement of those observables sensitive to non-perturbative effects compared to the predictions from several Monte Carlo programs. Chapter 6 discusses the final results and the comparison with theoretical expectations. Finally, Chapter 7 is devoted to the conclusions.
Z Jets Cross Section Ratio Measurements
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Author :
language : en
Publisher:
Release Date : 2007
Z Jets Cross Section Ratio Measurements written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with categories.
We present a study of events with Z bosons and jets produced at the Fermilab Tevatron Collider in p{bar p} collisions at a center of mass energy of 1.96 TeV. The data sample consists of nearly 14,000 Z/[gamma]* 2!ee− candidates corresponding to the integrated luminosity of 340 pb−1 collected using the D0 detector. Ratios of the Z/[gamma]* + d"n jet cross sections to the total inclusive Z/[gamma]* cross section have been measured for n = 1 to 4 jet events. Our measurements are found to be in good agreement with a next-to-leading order QCD calculation and with a tree-level QCD prediction with parton shower simulation and hadronization.