Back to Search Start Over

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

Authors :
CASTRO, ANDREA
DENINNO, MARIA MADDALENA
MARGAROLI, FABRIZIO
P. Mazzanti
MOGGI, NICCOLO'
RIMONDI, FRANCO
F. Semeria
ZUCCHELLI, STEFANO
CDF Collaboration
A.Castro
M.Deninno
F.Margaroli
P.Mazzanti
N.Moggi
F.Rimondi
F.Semeria
S.Zucchelli
CDF Collaboration
Publication Year :
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.

Details

Language :
English
Database :
OpenAIRE
Accession number :
edsair.od......4094..6e70b633b7b8bcd3615591e9fce82e8c