A measurement of the inclusive production of π0 mesons in hadronic Z decays is presented and compared to Monte Carlo model predictions. The analysis is based on approximately 2 million hadronic events recorded with the ALEPH detector at LEP at a centre-of-mass energy of √s = 91.2 GeV. Neutral pions are reconstructed using photons measured in the electromagnetic calorimeter and photons from conversion pairs. The inclusive π0 momentum spectrum is measured in the range 0.025 < xp = p/pbeam < 1. In this range the number of π0 per hadronic Z is found to be 4.80 ± 0.07(stat) ± 0.31(sys). The differential inclusive π0 cross section is also measured as a function of transverse momentum with respect to the event plane (pTin and pTout).

Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J., et al. (1997). Inclusive production of neutral pions in hadronic Z decays. ZEITSCHRIFT FÜR PHYSIK. C, PARTICLES AND FIELDS, 74(3), 451-461 [10.1007/s002880050407].

Inclusive production of neutral pions in hadronic Z decays

CARPINELLI, Massimo;
1997

Abstract

A measurement of the inclusive production of π0 mesons in hadronic Z decays is presented and compared to Monte Carlo model predictions. The analysis is based on approximately 2 million hadronic events recorded with the ALEPH detector at LEP at a centre-of-mass energy of √s = 91.2 GeV. Neutral pions are reconstructed using photons measured in the electromagnetic calorimeter and photons from conversion pairs. The inclusive π0 momentum spectrum is measured in the range 0.025 < xp = p/pbeam < 1. In this range the number of π0 per hadronic Z is found to be 4.80 ± 0.07(stat) ± 0.31(sys). The differential inclusive π0 cross section is also measured as a function of transverse momentum with respect to the event plane (pTin and pTout).
Articolo in rivista - Articolo scientifico
Physics
English
451
461
11
Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J., et al. (1997). Inclusive production of neutral pions in hadronic Z decays. ZEITSCHRIFT FÜR PHYSIK. C, PARTICLES AND FIELDS, 74(3), 451-461 [10.1007/s002880050407].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/390200
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