Charge asymmetry has been measured using 19 039 W decays recorded by the Collider Detector at Fermilab during the 1992-93 run of the Tevatron Collider. The asymmetry is sensitive to the ratio of d and u quark distributions to x<0.01 at Q2MW2, where nonperturbative effects are minimal. It is found that of the two current sets of parton distributions, those of Martin, Roberts, and Stirling are favored over the sets most recently produced by the CTEQ Collaboration. The W asymmetry data provide stronger constraints on du ratio than the recent measurements of F2μnF2μp which are limited by uncertainties originating from deuteron corrections. © 1995 The American Physical Society.

F., A., M. G., A., D., A., J., A., C., A., G., A., et al. (1995). Charge Asymmetry In W-boson Decays Produced In P(p)over-bar Collisions At Root-s=1.8 Tev. PHYSICAL REVIEW LETTERS, 74(6), 850-854 [10.1103/PhysRevLett.74.850].

Charge Asymmetry In W-boson Decays Produced In P(p)over-bar Collisions At Root-s=1.8 Tev

PAOLETTI, RICCARDO;
1995

Abstract

Charge asymmetry has been measured using 19 039 W decays recorded by the Collider Detector at Fermilab during the 1992-93 run of the Tevatron Collider. The asymmetry is sensitive to the ratio of d and u quark distributions to x<0.01 at Q2MW2, where nonperturbative effects are minimal. It is found that of the two current sets of parton distributions, those of Martin, Roberts, and Stirling are favored over the sets most recently produced by the CTEQ Collaboration. The W asymmetry data provide stronger constraints on du ratio than the recent measurements of F2μnF2μp which are limited by uncertainties originating from deuteron corrections. © 1995 The American Physical Society.
F., A., M. G., A., D., A., J., A., C., A., G., A., et al. (1995). Charge Asymmetry In W-boson Decays Produced In P(p)over-bar Collisions At Root-s=1.8 Tev. PHYSICAL REVIEW LETTERS, 74(6), 850-854 [10.1103/PhysRevLett.74.850].
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11365/39496
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