We search for Z(') bosons in dielectron events produced in p (p) over bar collisions at root s=1.96 TeV, using 0.45 fb(-1) of data accumulated with the Collider Detector at Fermilab II detector at the Fermilab Tevatron. To identify the Z(')-> e(+)e(-) signal, both the dielectron invariant mass distribution and the angular distribution of the electron pair are used. No evidence of a signal is found, and 95% confidence level lower limits are set on the Z(') mass for several models. Limits are also placed on the mass and gauge coupling of a generic Z('), as well as on the contact-interaction mass scales for different helicity structure scenarios.

Search for Z ' -> e(+) e(-) using dielectron mass and angular distribution RID G-1087-2011 RID E-4473-2011

DELL'ORSO, MAURO;DONATI, SIMONE;PUNZI, GIOVANNI;
2006-01-01

Abstract

We search for Z(') bosons in dielectron events produced in p (p) over bar collisions at root s=1.96 TeV, using 0.45 fb(-1) of data accumulated with the Collider Detector at Fermilab II detector at the Fermilab Tevatron. To identify the Z(')-> e(+)e(-) signal, both the dielectron invariant mass distribution and the angular distribution of the electron pair are used. No evidence of a signal is found, and 95% confidence level lower limits are set on the Z(') mass for several models. Limits are also placed on the mass and gauge coupling of a generic Z('), as well as on the contact-interaction mass scales for different helicity structure scenarios.
2006
Abulencia, A; Acosta, D; Adelman, J; Affolder, T; Akimoto, T; Albrow, Mg; Ambrose, D; Amerio, S; Amidei, D; Anastassov, A; Anikeev, K; Annovi, A; Anto...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11568/108686
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