Inclusive b and b(b)over-bar production with quasi-multi-Regge kinematics at the Tevatron

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Autor/in:
Erscheinungsjahr:
2010
Medientyp:
Text
Schlagworte:
  • Collisions
  • Production
  • PA collisions
  • Decay
  • Quarks
  • Neutrinos
  • Collisions
  • Production
  • PA collisions
  • Decay
  • Quarks
  • Neutrinos
Beschreibung:
  • We consider b-jet hadroproduction in the quasi-multi-Regge-kinematics approach based on the hypothesis of gluon and quark Reggeization in t-channel exchanges at high energies. The preliminary data on inclusive b-jet and bb̄-dijet production taken by the CDF Collaboration at the Fermilab Tevatron are well described without adjusting parameters. We find the main contribution to inclusive b-jet production to be the scattering of a Reggeized gluon and a Reggeized b quark to a b quark, which is described by the effective Reggeon-Reggeon-quark vertex. The main contribution to bb̄-pair production arises from the scattering of two Reggeized gluons to a bb̄ pair, which is described by the effective Reggeon-Reggeon-quark-quark vertex. Our analysis is based on the Kimber-Martin-Ryskin prescription for unintegrated gluon and quark distribution functions using as input the Martin-Roberts-Stirling-Thorne collinear parton distribution functions of the proton. © 2010 The American Physical Society.
Lizenz:
  • info:eu-repo/semantics/restrictedAccess
Quellsystem:
Forschungsinformationssystem der UHH
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oai:www.edit.fis.uni-hamburg.de:publications/fbb77756-d932-4b9a-9e76-1b3ae74379b2