The production rate of charged D* mesons in jets has been measured in 1.8-TeV p¯p collisions at the Fermilab Tevatron with the Collider Detector at Fermilab. In a sample of approximately 32 300 jets with a mean transverse energy of 47 GeV obtained from an exposure of 21.1 nb-1, a signal corresponding to 25.0±7.5(stat)±2.0(syst) D*±→K∓π±π± events is seen above background. This corresponds to a ratio N(D*++D*-)/N(jet) =0.10±0.03±0.03 for D* mesons with fractional momentum z greater than 0.1.

Measurement of D* production in jets from p¯p collisions at √s =1.8 TeV / F. Abe, D. Amidei, G. Apollinari, G. Ascoli, M. Atac, P. Auchincloss, A. Baden, A. Barbaro-Galtieri, V. Barnes, F. Bedeschi, S. Behrends, S. Belforte, G. Bellettini, J. Bellinger, J. Bensinger, A. Beretvas, P. Berge, S. Bertolucci, S. Bhadra, M. Binkley, et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - ELETTRONICO. - 64:(1990), pp. 348-352. [10.1103/PhysRevLett.64.348]

Measurement of D* production in jets from p¯p collisions at √s =1.8 TeV

FOCARDI, ETTORE;
1990

Abstract

The production rate of charged D* mesons in jets has been measured in 1.8-TeV p¯p collisions at the Fermilab Tevatron with the Collider Detector at Fermilab. In a sample of approximately 32 300 jets with a mean transverse energy of 47 GeV obtained from an exposure of 21.1 nb-1, a signal corresponding to 25.0±7.5(stat)±2.0(syst) D*±→K∓π±π± events is seen above background. This corresponds to a ratio N(D*++D*-)/N(jet) =0.10±0.03±0.03 for D* mesons with fractional momentum z greater than 0.1.
1990
64
348
352
F. Abe;D. Amidei;G. Apollinari;G. Ascoli;M. Atac;P. Auchincloss;A. Baden;A. Barbaro-Galtieri;V. Barnes;F. Bedeschi;S. Behrends;S. Belforte...espandi
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/627196
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