[SLAC] [SLAC Pubs and Reports]
SLAC-PUB-7824
A Study of Correlations Between Identified Charged Hadrons in Hadronic
Z0 Decays
Abstract
We present a preliminary study of correlations in rapidity between
pairs of identified pions, kaons and protons in hadronic
Z0 decays into light flavors. Short range charge
correlations are observed between all combinations of these hadron
species, confirming that charge, strangeness and baryon number are
conserved locally in the jet fragmentation process. The range of this
effect is found to be independent of momentum. A strong long-range
correlation is observed for high-momentum charged kaon pairs, and
weaker long-range pi+-pi-, pi-
-K- and p-K- correlations are
observed. The SLC electron beam polarization is used to tag the quark
hemisphere in each event, allowing the first study of rapidities
signed such that positive rapidity is along the quark rather than
antiquark direction. Distributions of signed rapidities and of ordered
differences between signed rapidities provide new insights into
leading particle production and several new tests of fragmentation
models.
Full Text
PDF
Compressed PostScript
Notes
The PDF version of this document was distilled from a PostScript file
created from LaTeX source which may have used Type 3 fonts. The
resultant PDF may be unreadable on the screen at the default viewing
magnification, though the fonts will be legible at slightly higher
magnifications.
Despite the cosmetic problems resulting from the Type 3 fonts, such
PDF files print without problems; likewise, the onscreen text is
searchable and selectable.
More Information
Full bibliographic data for this document, including its complete author list,
is (or soon will be) available from SLAC's
SPIRES-HEP
Database.
Please report problems with this file to
posting@slac.stanford.edu.
The SLAC preprint inventory is provided by the
SLAC Technical Publications Department.
Page generated 04 Apr 2001 @ 15:08 PDT by htmlme.pl