Inclusive production cross sections of π±, K± and p/pbar per hadronic e+e− annihilation event are measured at a center-of-mass energy of 10.54 GeV, using a relatively small sample of very high quality data from the BABAR experiment at the PEP-II B-factory at the SLAC National Accelerator Laboratory. The drift chamber and Cherenkov detector provide clean samples of identified π±, K±, and p/pbar over a wide range of momenta. Since the center-of-mass energy is below the threshold to produce a BBbar pair, with B a bottom-quark meson, these data represent a pure e+e−→qqbar sample with four quark flavors, and are used to test QCD predictions and hadronization models. Combined with measurements at other energies, in particular at the Z0 resonance, they also provide precise constraints on the scaling properties of the hadronization process over a wide energy range.

Production of charged pions, kaons, and protons in e^{+}e^{-} annihilations into hadrons at sqrt[s]=10.54 GeV

CONTRI, ROBERTO;GUIDO, ELISA;LO VETERE, MAURIZIO;MONGE, MARIA ROBERTA;
2013-01-01

Abstract

Inclusive production cross sections of π±, K± and p/pbar per hadronic e+e− annihilation event are measured at a center-of-mass energy of 10.54 GeV, using a relatively small sample of very high quality data from the BABAR experiment at the PEP-II B-factory at the SLAC National Accelerator Laboratory. The drift chamber and Cherenkov detector provide clean samples of identified π±, K±, and p/pbar over a wide range of momenta. Since the center-of-mass energy is below the threshold to produce a BBbar pair, with B a bottom-quark meson, these data represent a pure e+e−→qqbar sample with four quark flavors, and are used to test QCD predictions and hadronization models. Combined with measurements at other energies, in particular at the Z0 resonance, they also provide precise constraints on the scaling properties of the hadronization process over a wide energy range.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11567/696071
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