A measurement of the inclusive production of pi(0) 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 root s = 91.2 GeV. Neutral pions are reconstructed using photons measured in the electromagnetic calorimeter and photons from conversion pairs. The inclusive pi(0) momentum spectrum is measured in the range 0.025 < x(p) = p/p(beam) < 1. In this range the number of pi(0) per hadronic Z is found to be 4.80 +/- 0.07(stat) +/- 0.31(sys). The differential inclusive pi(0) cross section is also measured as a function of transverse momentum with respect to the event plane (p(T)(in) and p(T)(out)).

R., B., D., B., D., D., P., G., C., G., J. P., L., 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

CIOCCI, MARIA AGNESE;MARROCCHESI, PIER SIMONE;
1997-01-01

Abstract

A measurement of the inclusive production of pi(0) 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 root s = 91.2 GeV. Neutral pions are reconstructed using photons measured in the electromagnetic calorimeter and photons from conversion pairs. The inclusive pi(0) momentum spectrum is measured in the range 0.025 < x(p) = p/p(beam) < 1. In this range the number of pi(0) per hadronic Z is found to be 4.80 +/- 0.07(stat) +/- 0.31(sys). The differential inclusive pi(0) cross section is also measured as a function of transverse momentum with respect to the event plane (p(T)(in) and p(T)(out)).
1997
R., B., D., B., D., D., P., G., C., G., J. P., L., 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/11365/38595
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