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)).

Inclusive production of neutral pions in hadronic Z decays / Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J.p., Lucotte, A., Minard, M.n., Nief, J.y., Odier, P., Pietrzyk, B., Casado, M.p., Chmeissani, M., Comas, P., Crespo, J.m., Delfino, M., Fernandez, E., Fernandezbosman, M., Garrido, L.i., Juste, A., et al.. - In: ZEITSCHRIFT FÜR PHYSIK. C, PARTICLES AND FIELDS. - ISSN 0170-9739. - STAMPA. - 74:3(1997), pp. 451-461. [10.1007/s002880050407]

Inclusive production of neutral pions in hadronic Z decays

Creanza D;Gelao G;Iaselli G;Maggi G;
1997

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
Inclusive production of neutral pions in hadronic Z decays / Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Lees, J.p., Lucotte, A., Minard, M.n., Nief, J.y., Odier, P., Pietrzyk, B., Casado, M.p., Chmeissani, M., Comas, P., Crespo, J.m., Delfino, M., Fernandez, E., Fernandezbosman, M., Garrido, L.i., Juste, A., et al.. - In: ZEITSCHRIFT FÜR PHYSIK. C, PARTICLES AND FIELDS. - ISSN 0170-9739. - STAMPA. - 74:3(1997), pp. 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/11589/3063
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