The Ratio Of Inclusive Jet Cross Sections At Square Roots
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The Ratio of Inclusive Jet Cross Sections at Square Root S
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Release | : 2002 |
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This dissertation presents an analysis of hadronic jet production from proton-antiproton collisions at two center-of-mass energies. Measurements were performed in the central region ([eta]
Measurement of the Ratio of Inclusive Cross Sections [sigma](pp̄ --> Z + B-jet)/[sigma](pp̄ --> Z + Jet) at [square Roots]
Author | : Yildirim Doğan Mutaf |
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Total Pages | : 456 |
Release | : 2005 |
Genre | : Electroweak interactions |
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Inclusive Jet Production at (square Root)s
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Total Pages | : 7 |
Release | : 1996 |
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A preliminary measurement of the inclusive jet cross section at (square root){ital s} = 630 GeV is presented. The data are compared with NLO QCD predictions. The ratio of scaled inclusive jet cross section a (square root){ital s} = 1800 GeV and (square root){ital s} = 630 GeV is presented and compared with previous CDF results and QCD predictions.
The Ratio of CDF Low E{sub T} Jet Cross-sections at (square Root)s
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Total Pages | : 7 |
Release | : 1993 |
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Inclusive jet cross-sections have been measured in {bar p}p collisions at (square root)s = 546 and 1,800 GeV, using the CDF detector at the Fermilab Tevatron. The ratio of low E{sub t} (25--75 GeV) jet cross sections vs. E{sub t} has been formed, and the authors have used this as a tool to investigate some implications of the published 1989 CDF ''jet scaling'' results. In particular, results at 1,800 GeV have given no indication of any unsuspected errors in CDF's low E{sub t} jet measurements.
A Measurement of the Ratio of Production Cross Sections for W+1 Jet to W+0 Jets at [square Root of S]
Author | : Tacy Marie Joffe-Minor |
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Release | : 1997 |
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The QCD corrections to W production associated with a jet are studied using the ratio of W + 1 Jet to W + 0 Jets cross sections for a jet with a transverse energy of 25 GeV. The measured ratio of $0.096\pm0.005\sp{stat}\pm0.008\sp{syst}$ is significantly higher than the theoretical predictions of Giele et al. of 0.053. This discrepancy is at least partly due to the relatively unconstrained gluon distribution of the proton.
Multijet Cross Section Ratios in Pbar P Collisions at Square Root S
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Release | : 2000 |
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We have measured the ratio of the three-jet to two-jet inclusive cross section as a function of the total transverse energy of jets (H[sub T]=[summation]E[sup j][sub T]) in events in p[anti p] collisions at [radical]s=1.8 TeV. We find that for [summation]E[sub T]>200 GeV there is a 70% probability of emitting an additional jet with E[sub T>20 GeV. Using this measurement and the framework of the theory of Quantum Chromodynamics (QCD), we investigated the size of the renormalization scale used to model emission of ''soft'' (low-E[sub T]) jets in multijet final states. The findings indicate that, to order [alpha][sub s][sup 3] in QCD the data favor a scale representative of the hard scattering rather than a softer scale of the order of the third jet's transverse momentum. The preferred scale is [mu][sub R][approx]1/4 H[sub T].
Inclusive Jet Production at CDF.
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Total Pages | : |
Release | : 1999 |
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The inclusive jet cross section was measured by CDF at center of mass energies of 1800 and 630 GeV. At (square root)s =1800 GeV, the inclusive jet cross section is compared with NLO QCD predictions (with different sets of parton distribution functions) and with measurement by D0 Collaboration. Strong coupling constant is extracted (as a consistency check) from 1800 GeV inclusive jet data. The ratio of scaled inclusive jet cross sections measured at two values of (square root)s is compared with NLO QCD predictions. Comparison with D0 result is also shown.