Formation of heavy quarks in ultrarelativistic heavy-ion collisions

  • We investigate the production of heavy quarks in continuum and bound states in nuclear collisions. Creation rates for free bb and tt quark pairs and for bottomonium and toponium in the ground state are computed at energies of the BNL Relativistic Heavy Ion Collider, CERN Large Hadron Collider (LHC), and Superconducting Super Collider. Central and peripheral heavy-ion collisions are discussed. For top-quark creation we assumed a mass range of 90≤mt≤250 GeV. The creation rate for top quarks in peripheral collisions is estimated to be by a factor 40 to 130 smaller compared with corresponding central collisions. For mt=130 GeV we calculated a creation rate of about 4760 top-quark pairs per day at the LHC (3.5 TeV/nucleon) for Pb-Pb collisions.

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Author:Stefan Michael Schneider, Walter GreinerGND, Gerhard SoffGND
Parent Title (German):Physical review. D
Document Type:Article
Date of Publication (online):2006/07/11
Year of first Publication:1992
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2006/07/11
Page Number:11
First Page:2930
Last Page:2940
Source:Phys. Rev. D 46, 2930~V2940 (1992), ©1992 The American Physical Society,
Institutes:Physik / Physik
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
PACS-Classification:10.00.00 THE PHYSICS OF ELEMENTARY PARTICLES AND FIELDS (for experimental methods and instrumentation for elementary-particle physics, see section 29) / 14.00.00 Properties of specific particles / 14.40.-n Mesons / 14.40.Gx Mesons with <i>S</i>=<i>C</i>=<i>B</i>=0, mass > 2.5 GeV (including quarkonia)
20.00.00 NUCLEAR PHYSICS / 24.00.00 Nuclear reactions: general / 24.85.+p Quarks, gluons, and QCD in nuclear reactions
Licence (German):License LogoDeutsches Urheberrecht