The DELPHI experiment at LEP uses Ring Imaging Cherenkov detectors for particle identification. The good understanding of the RICH detectors allows the identification of charged pions, kaons and protons, covering the full momentum range from 0.7 < p < 45.6GeV/c. The π±, K±, p and p̄ normalised production rates, their differential cross sections, multiplicities and the maxima ξ*pof_the ξp= ln (1/Xp) distributions are measured for three event samples Z0→ qq̄, Z0→ bb̄, Z0→ uū, dd̄, ss̄, selected from ∼ 1 400 000 Z0decays collected by DELPHI in 1994. The results are compared to the predictions of the JETSET string fragmentation model and the HERWIG cluster fragmentation model. The Modified Leading Logarithm Approximation with Local Parton-Hadron Duality is tested. The ξ*pdependence on the primary quark flavour is investigated and quantified for the different particle distributions. The π±, K±, p and p̄ multiplicities are measured with precisions from ±4% to ±6%. Forche Z0→ qq̄, and Z0→ bb̄, event samples, these improve on previous measurements. The π±, K±, p and p̄ multiplicities for Z0→ uū, dd̄, ss̄ are presented for the first time.

Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Alekseev, G., et al. (1998). pi+-, K+-, p and p-bar production in Z0 -> q q-bar, Z0 -> b b-bar, Z0 -> u u-bar, d d-bar, s s-bar. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 5(4), 585-620.

pi+-, K+-, p and p-bar production in Z0 -> q q-bar, Z0 -> b b-bar, Z0 -> u u-bar, d d-bar, s s-bar

Calvi, M.;Paganoni, M.;Ragazzi, S.;Tabarelli, T.;Terranova, F.;
1998

Abstract

The DELPHI experiment at LEP uses Ring Imaging Cherenkov detectors for particle identification. The good understanding of the RICH detectors allows the identification of charged pions, kaons and protons, covering the full momentum range from 0.7 < p < 45.6GeV/c. The π±, K±, p and p̄ normalised production rates, their differential cross sections, multiplicities and the maxima ξ*pof_the ξp= ln (1/Xp) distributions are measured for three event samples Z0→ qq̄, Z0→ bb̄, Z0→ uū, dd̄, ss̄, selected from ∼ 1 400 000 Z0decays collected by DELPHI in 1994. The results are compared to the predictions of the JETSET string fragmentation model and the HERWIG cluster fragmentation model. The Modified Leading Logarithm Approximation with Local Parton-Hadron Duality is tested. The ξ*pdependence on the primary quark flavour is investigated and quantified for the different particle distributions. The π±, K±, p and p̄ multiplicities are measured with precisions from ±4% to ±6%. Forche Z0→ qq̄, and Z0→ bb̄, event samples, these improve on previous measurements. The π±, K±, p and p̄ multiplicities for Z0→ uū, dd̄, ss̄ are presented for the first time.
Articolo in rivista - Articolo scientifico
Engineering (miscellaneous); Physics and Astronomy (miscellaneous)
English
1998
5
4
585
620
none
Abreu, P., Adam, W., Adye, T., Adzic, P., Ajinenko, I., Alekseev, G., et al. (1998). pi+-, K+-, p and p-bar production in Z0 -> q q-bar, Z0 -> b b-bar, Z0 -> u u-bar, d d-bar, s s-bar. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 5(4), 585-620.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/187025
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