QCD at D0 and CDF

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Selected recent Quantum Chromodynamics (QCD) results from the D0 and CDF experiments at the Fermilab Tevatron are presented and discussed. The inclusive jet and inclusive triple differential dijet cross sections are compared to next-to-leading order QCD calculations. The sensitivity of the dijet cross section to parton distribution functions (for hadron momentum fractions {approximately} 0.01 to {approximately} 0.4) will constrain the gluon distribution of the proton. Two analyses of dijet production at large rapidity separation are presented. The first analysis tests the contributions of higher order processes to dijet production and can be considered a test of BFKL or GLAP parton ... continued below

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24 p.

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Blazey, G.C. May 1, 1995.

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Description

Selected recent Quantum Chromodynamics (QCD) results from the D0 and CDF experiments at the Fermilab Tevatron are presented and discussed. The inclusive jet and inclusive triple differential dijet cross sections are compared to next-to-leading order QCD calculations. The sensitivity of the dijet cross section to parton distribution functions (for hadron momentum fractions {approximately} 0.01 to {approximately} 0.4) will constrain the gluon distribution of the proton. Two analyses of dijet production at large rapidity separation are presented. The first analysis tests the contributions of higher order processes to dijet production and can be considered a test of BFKL or GLAP parton evolution. The second analysis yields a strong rapidity gap signal consistent with colorless exchange between the scattered partons. The prompt photon inclusive cross section is consistent with next-to-leading order QCD only at the highest transverse momenta. The discrepancy at lower momenta may be indicative of higher order processes impacting a transverse momentum or ``k{sub T}`` to the partonic interaction. The first measurement of the strong coupling constant from the Tevatron is also presented. The coupling constant can be determined from the ratio of W + 1jet to W + 0jet cross sections and a next-to-leading order QCD calculation.

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24 p.

Notes

INIS; OSTI as DE95013003

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  • Rencontres de Physique de la Valle` d`Aoste: results and perspectives in particle physics, La Thuile (Italy), 5-11 Mar 1995

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  • Other: DE95013003
  • Report No.: FNAL/C--95/094
  • Report No.: CONF-9503147--2
  • Grant Number: AC02-76CH03000
  • Office of Scientific & Technical Information Report Number: 79110
  • Archival Resource Key: ark:/67531/metadc741185

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Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • May 1, 1995

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  • Oct. 19, 2015, 7:39 p.m.

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  • April 1, 2016, 4:40 p.m.

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Blazey, G.C. QCD at D0 and CDF, article, May 1, 1995; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc741185/: accessed October 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.