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On Angular Correlation Tests of {QCD} in Semiinclusive $\mu p$ Scattering

Authors
  • Mazzanti, P.
  • Odorico, R.
  • Roberto, V.
Publication Date
Jan 01, 1978
Identifiers
DOI: 10.1016/0370-2693(78)90320-9
OAI: oai:inspirehep.net:6943
Source
INSPIRE-HEP
Keywords
License
Unknown
External links

Abstract

We calculate the effects on the azimuthal correlations predicted by QCD in semi-inclusive μp scattering due to the intrinsic transverse momentum k T of the struck parton and to the transverse momentum given to the hadron in the quark decay. We find that going to sufficiently large p T (⪆1.5 GeV/ c ) the smearing in azimuth due to the fragmentation process is practically eliminated, and the expected <cosϕ > is about −0.10 to −0.20, depending on kinematical cuts. The effects of the intrinsic transverse momentum K T are discussed in some detail. Independently of the presence of K T effects and of the possible contamination from the naive parton model contribution, one can conclude that the lack of experimental observation of the expected effect at large p T would unambigously contradict the QCD expectation.

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