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Heavy quark correlations in direct photon-photon collisions
- Publication Year :
- 1996
- Publisher :
- Deutsches Elektronen-Synchrotron, DESY, Hamburg, 1996.
-
Abstract
- In two-photon collisions at LEP2 and a future e + e − linear collider heavy quarks (mainly charm) will be pair-produced rather copiously. The production via direct and resolved photons can be distinguished experimentally via a remnant-jet tag. We study correlations of the heavy quarks at next-to-leading order in QCD in the direct channel, which is free from phenomenological parton densities in the photon. These correlations are therefore directly calculable in perturbative QCD and provide a stringent test of the production mechanism.
- Subjects :
- annihilation: electron positron
exchange: two-photon
photon photon: exclusive reaction
quark: correlation
perturbation theory: higher-order
electron positron: annihilation
(quark antiquark): mass spectrum
175: 500 GeV-cms
quark: pair production
pair production: quark
quark: charm
rapidity
transverse momentum: spectrum
quantum chromodynamics
spectrum: transverse momentum
heavy quark
angular distribution
two-photon: exchange
mass spectrum: (quark antiquark)
numerical calculations
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi...........8c31984967ecf35ce07f3d54b3d95449
- Full Text :
- https://doi.org/10.3204/pubdb-2022-05173