Calculations of bottom quark production at hadron colliders

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This thesis studies Monte Carlo simulations of QCD heavy flavor production processes (p{bar p} {yields} Q({anti Q})X) at hadron colliders. ISAJET bottom quark cross-sections are compared to the O({alpha} {sub s}{sup 3}) perturbative calculation of Nason, Dawson, and Ellis. These Monte Carlo cross-sections are computed from data samples which use different parton distribution functions and physics parameters. Distributions are presented in the heavy quark's transverse momentum and rapidity. Correlations in rapidity and azimuthal angle are computed for the heavy flavor pair. Theory issues which arise are the behavior of the cross-section at low and high values of transverse momentum and ... continued below

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Pages: (83 p)

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Kuebel, D. June 29, 1991.

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Description

This thesis studies Monte Carlo simulations of QCD heavy flavor production processes (p{bar p} {yields} Q({anti Q})X) at hadron colliders. ISAJET bottom quark cross-sections are compared to the O({alpha} {sub s}{sup 3}) perturbative calculation of Nason, Dawson, and Ellis. These Monte Carlo cross-sections are computed from data samples which use different parton distribution functions and physics parameters. Distributions are presented in the heavy quark's transverse momentum and rapidity. Correlations in rapidity and azimuthal angle are computed for the heavy flavor pair. Theory issues which arise are the behavior of the cross-section at low and high values of transverse momentum and the treatment of double counting problems in the flavor excitation samples. An important result is that ISAJET overestimates bottom quark production cross-sections and K factors. These findings are relevant for estimates of rates and backgrounds of heavy floor events.

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Pages: (83 p)

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OSTI; NTIS; INIS; GPO Dep.

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  • Other Information: Thesis (Ph.D.)

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  • Other: DE92009716
  • Report No.: ANL-HEP-TR-91-111
  • Grant Number: W-31109-ENG-38
  • DOI: 10.2172/5693825 | External Link
  • Office of Scientific & Technical Information Report Number: 5693825
  • Archival Resource Key: ark:/67531/metadc1092695

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Creation Date

  • June 29, 1991

Added to The UNT Digital Library

  • Feb. 10, 2018, 10:06 p.m.

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  • March 1, 2018, 8:12 p.m.

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Kuebel, D. Calculations of bottom quark production at hadron colliders, report, June 29, 1991; United States. (digital.library.unt.edu/ark:/67531/metadc1092695/: accessed November 16, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.