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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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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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 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 Pp Right Arrow E E Events Using The D 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 Pp Right Arrow E E Events Using The D 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 Fermions categories.
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.
A Measurement Of The Inclusive Drell Yan E E Cross Section In The Invariant Mass Range Of 3 60 Gev C2 From Pp U02c9 Collisions At Square Root S
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Author : James Walter Thomas McKinley
language : en
Publisher:
Release Date : 1996
A Measurement Of The Inclusive Drell Yan E E Cross Section In The Invariant Mass Range Of 3 60 Gev C2 From Pp U02c9 Collisions At Square Root S written by James Walter Thomas McKinley and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with Hadron interactions categories.
Measurement Of Top Anti Top Cross Section In Proton Anti Proton Collider At S 1 2
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Author : Prolay Kumar Mal
language : en
Publisher:
Release Date : 2005
Measurement Of Top Anti Top Cross Section In Proton Anti Proton Collider At S 1 2 written by Prolay Kumar Mal 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.
Discovery of the top quark in 1995 at the Fermilab Tevatron collider concluded a long search following the 1977 discovery of bottom (b) quark [1] and represents another triumph of the Standard Model (SM) of elementary particles. Top quark is one of the fundamental fermions in the Standard Model of electroweak interactions and is the weak-isospin partner of the bottom quark. A precise measurement of top pair production cross-section would be a test of Quantum Chromodynamics (QCD) prediction. Presently, Tevatron is the world's highest energy collider where protons (p) and anti-protons ({anti p}) collide at a centre of mass energy (ps) of 1.96 TeV. At Tevatron top (t) and anti-top ({anti t}) quarks are predominantly pair produced through strong interactions--quark annihilation ({approx_equal} 85%) and gluon fusion ({approx_equal} 15%). Due to the large mass of top quark, t or {anti t} decays ({approx} 10{sup -25} sec) before hadronization and in SM framework, it decays to a W boson and a b quark with {approx} 100% branching ratio (BR). The subsequent decay of W boson determines the major signatures of t{anti t} decay. If both W bosons (coming from t and {anti t} decays) decay into leptons (viz., ev{sub e}, {mu}{nu}{sub {mu}} or {tau}{nu}{sub {tau}}) the corresponding t{bar t} decay is called dileptonic decay. Of all dileptonic decay modes of t{bar t}, the t{bar t} {yields} WWb{anti b} {yields} ev{sub e}{mu}{nu}{sub {mu}}b{anti b} (e{mu} channel) decay mode has the smallest background contamination from Z{sup 0} production or Drell-Yan process; simultaneously, it has the highest BR ({approx} 3.16%) [2] amongst all dileptonic decay modes of t{bar t}. During Run I (1992-1996) of Tevatron, three e{mu} candidate events were detected by D0 experiment, out of 80 candidate events (inclusive of all decay modes of t{bar t}). Due to the rarity of the t{bar t} events, the measured cross-section has large uncertainty in its value (viz., 5.69 {+-} 1.21(stat) {+-} 1.04(sys) pb {at} {radical}s = 1.8 TeV measured by D0 [3]). This analysis presents a cross section measurement in e{mu} channel utilizing {approx} 228 pb{sup -1} of data collected by D0 experiment during Tevatron Run II (between June 2002 and April 2004).
Measurement Of The Differential Drell Yan Cross Section In Proton Proton Collisions At S
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Author : Albert M. Sirunyan
language : en
Publisher:
Release Date : 2018
Measurement Of The Differential Drell Yan Cross Section In Proton Proton Collisions At S written by Albert M. Sirunyan and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with categories.
Measurements Of The Differential Cross Sections For The Inclusive Production Of A Photon And Heavy Flavor Jet
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Author :
language : en
Publisher:
Release Date : 2009
Measurements Of The Differential Cross Sections For The Inclusive Production Of A Photon And Heavy Flavor 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 2009 with categories.
This thesis presents the first measurement of the differential production cross section of a heavy flavor (bottom or charm) jet and direct photon at the Fermilab Tevatron. These measurements were performed using data recorded with the D0 detector from proton-antiproton collisions at a center of mass energy of √s = 1.96 TeV. These results probe a kinematic range for the photon transverse momentum of 30
Measurements Of The Top Anti Top Production Cross Section At S 1 2
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Author : Joseph Francis Kozminski
language : en
Publisher:
Release Date : 2005
Measurements Of The Top Anti Top Production Cross Section At S 1 2 written by Joseph Francis Kozminski 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 first measurement of the top-antitop production cross section in proton-antiproton collisions at {radical}s = 1.96 TeV using 243 pb{sup -1} of data collected with the D0 detector at Fermilab is presented. In this analysis, only the dielectron final state is considered. Five events are observed, and 0.93 background events are expected. The measured cross section, after accounting for the expected branching ratio to the dielectron channel, is {sigma}{sub t{bar t}} = 14.9{sub -7.0}{sup +9.4}(stat){sub -1.8}{sup +2.5}(syst) {+-} 1.0 (lumi) pb, which agrees with the predicted cross section for top quarks with a mass of 175 GeV. In addition, a first-pass at a measurement of the top mass using the neutrino-weighting method is presented. This measurement is also performed in the dielectron channel using the five events observed in the cross section measurement.