Production of charged pions, kaons and protons in e+e- annihilations into hadrons at sqrt{s} = 10.54 GeV - Archive ouverte HAL Access content directly
Journal Articles Physical Review D Year : 2013

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

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N. Arnaud

Abstract

Inclusive production cross sections of $\pi^\pm$, $K^\pm$ and $p\bar{p}$ in $e^+e^-$ annihilations 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 $\pi^\pm$, $K^\pm$ and $p\bar{p}$ over a wide range of momenta. Since the center-of-mass energy is below the threshold to produce a $B\bar{B}$ pair, with $B$ a bottom-quark meson, these data represent a pure $e^+e^- \rightarrow q\bar{q}$ 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 $Z^0$ resonance, they also provide precise constraints on the scaling properties of the hadronization process over a wide energy range.

Dates and versions

in2p3-00833588 , version 1 (13-06-2013)

Identifiers

Cite

J. P. Lees, V. Poireau, V. Tisserand, N. Arnaud, M. Davier, et al.. Production of charged pions, kaons and protons in e+e- annihilations into hadrons at sqrt{s} = 10.54 GeV. Physical Review D, 2013, 88, pp.032011. ⟨10.1103/PhysRevD.88.032011⟩. ⟨in2p3-00833588⟩
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