We present a new method for studying high-p(T) dilepton events (e(+/-)e(-/+), mu(+/-)mu(-/+), e(+/-)mu(-/+)) and simultaneously extracting the production cross sections of p (p) over bar -> t (t) over bar, p (p) over bar -> W(+)W(-), and p (p) over bar -> Z(0) -> tau(+)tau(-) at a center-of-mass energy of root s = 1.96 TeV. We perform a likelihood fit to the dilepton data in a parameter space defined by the missing transverse energy and the number of jets in the event. Our results, which use 360 pb(-1) of data recorded with the CDF II detector at the Fermilab Tevatron Collider, are sigma(t (t) over bar) = (8.5(-2.2)(+2.7)) pb, sigma(W(+)W(-)) = (16.3(-4.4)(+5.2)) pb, and sigma(Z(0) -> tau(+)tau(-)) = (291(-46)(+50)) pb.

A., A., J., A., T., A., T., A., M. G., A., D., A., et al. (2008). Cross section measurements of high-p(T) dilepton final-state processes using a global fitting method. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 78(1), 012003-1-012003-9 [10.1103/PhysRevD.78.012003].

Cross section measurements of high-p(T) dilepton final-state processes using a global fitting method

CIOCCI, MARIA AGNESE;TURINI, NICOLA;
2008-01-01

Abstract

We present a new method for studying high-p(T) dilepton events (e(+/-)e(-/+), mu(+/-)mu(-/+), e(+/-)mu(-/+)) and simultaneously extracting the production cross sections of p (p) over bar -> t (t) over bar, p (p) over bar -> W(+)W(-), and p (p) over bar -> Z(0) -> tau(+)tau(-) at a center-of-mass energy of root s = 1.96 TeV. We perform a likelihood fit to the dilepton data in a parameter space defined by the missing transverse energy and the number of jets in the event. Our results, which use 360 pb(-1) of data recorded with the CDF II detector at the Fermilab Tevatron Collider, are sigma(t (t) over bar) = (8.5(-2.2)(+2.7)) pb, sigma(W(+)W(-)) = (16.3(-4.4)(+5.2)) pb, and sigma(Z(0) -> tau(+)tau(-)) = (291(-46)(+50)) pb.
A., A., J., A., T., A., T., A., M. G., A., D., A., et al. (2008). Cross section measurements of high-p(T) dilepton final-state processes using a global fitting method. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 78(1), 012003-1-012003-9 [10.1103/PhysRevD.78.012003].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11365/37847
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