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.

A.Castro, M.Deninno, F.Margaroli, P.Mazzanti, N.Moggi, F.Rimondi, et al. (2006). Search for Z' --> e+ e- Using Dielectron Mass and Angular Distribution. PHYSICAL REVIEW LETTERS, 96, 211801-1-211801-7 [10.1103/PhysRevLett.96.211801].

Search for Z' --> e+ e- Using Dielectron Mass and Angular Distribution

CASTRO, ANDREA;DENINNO, MARIA MADDALENA;MARGAROLI, FABRIZIO;MOGGI, NICCOLO';RIMONDI, FRANCO;ZUCCHELLI, STEFANO;
2006

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
A.Castro, M.Deninno, F.Margaroli, P.Mazzanti, N.Moggi, F.Rimondi, et al. (2006). Search for Z' --> e+ e- Using Dielectron Mass and Angular Distribution. PHYSICAL REVIEW LETTERS, 96, 211801-1-211801-7 [10.1103/PhysRevLett.96.211801].
A.Castro; M.Deninno; F.Margaroli; P.Mazzanti; N.Moggi; F.Rimondi; F.Semeria; S.Zucchelli; CDF Collaboration
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/37750
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