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2013-08-26

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Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/131845

Production of charged pions, kaons, and protons in e+e− annihilations into hadrons at √s = 10.54 GeV

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https://doi.org/10.1103/PhysRevD.88.032011

Resum

Inclusive production cross sections of π ± , K ± and p / ¯ p 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 / ¯ p over a wide range of momenta. Since the center-of-mass energy is below the threshold to produce a B ¯¯¯ B pair, with B a bottom-quark meson, these data represent a pure e + e − → q ¯ 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.

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Física de partícules, Experiments

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Particle physics, Experiments

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GRAUGÉS POUS, Eugeni and BABAR Collaboration. Production of charged pions, kaons, and protons in e+e− annihilations into hadrons at √s = 10.54 GeV. Physical Review D. 2013. Vol. 88, num. 3, pags. 032011. ISSN 1550-7998. [consulted: 22 of June of 2026]. Available at: https://hdl.handle.net/2445/131845

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