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Using Heavy Quark Fragmentation into Heavy Hadrons to Determine QCD Parameters and Test Heavy Quark Symmetry

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Using Heavy Quark Fragmentation into Heavy Hadrons to Determine QCD Parameters and Test Heavy Quark Symmetry

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dc.contributor.author Randall, Lisa
dc.contributor.author Rius Dionis, Nuria
dc.date.accessioned 2015-03-03T12:42:02Z
dc.date.available 2015-03-03T12:42:02Z
dc.date.issued 1995
dc.identifier.citation Randall, Lisa Rius Dionis, Nuria 1995 Using Heavy Quark Fragmentation into Heavy Hadrons to Determine QCD Parameters and Test Heavy Quark Symmetry Nuclear Physics B 441 1-2 167 196
dc.identifier.uri http://hdl.handle.net/10550/42596
dc.description.abstract We present a detailed analysis of the use of heavy quark fragmentation into heavy hadrons for testing the heavy quark effective theory through comparison of the measured fragmentation parameters of the c and b quarks. Our analysis is entirely model independent. We interpret the known perturbative evolution in a way useful for exploiting heavy quark symmetry at low energy. We first show consistency with perturbative QCD scaling for measurements done solely with c quarks. We then apply the perturbative analysis and the heavy quark expansion to relate measurements from ARGUS and LEP. We place bounds on a nonperturbative quark mass suppressed parameter, and compare the values for the b and c quarks. We find consistency with the heavy quark expansion but fairly sizable QCD uncertainties. We also suggest that one might reduce the systematic uncertainty in the result by not extrapolating to low z.
dc.language.iso eng
dc.relation.ispartof Nuclear Physics B, 1995, vol. 441, num. 1-2, p. 167-196
dc.subject Física
dc.title Using Heavy Quark Fragmentation into Heavy Hadrons to Determine QCD Parameters and Test Heavy Quark Symmetry
dc.type journal article es_ES
dc.date.updated 2015-03-03T12:42:02Z
dc.identifier.doi 10.1016/0550-3213(95)00101-W
dc.identifier.idgrec 100453
dc.rights.accessRights open access es_ES

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