Title
Search for new heavy particles decaying to ZZ→llll, lljj in pp̄ collisions at s=1.96TeV
Date Issued
21 June 2011
Access level
open access
Resource Type
journal article
Author(s)
Aaltonen T.
Álvarez González B.
Amerio S.
Amidei D.
Anastassov A.
Annovi A.
Antos J.
Apollinari G.
Appel J.A.
Apresyan A.
Arisawa T.
Artikov A.
Asaadi J.
Ashmanskas W.
Auerbach B.
Aurisano A.
Azfar F.
Badgett W.
Barbaro-Galtieri A.
Barnes V.E.
Barnett B.A.
Barria P.
Bartos P.
Bauce M.
Bauer G.
Bedeschi F.
Beecher D.
Behari S.
Bellettini G.
Bellinger J.
Benjamin D.
Beretvas A.
Bhatti A.
Binkley M.
Bisello D.
Bizjak I.
Bland K.R.
Blumenfeld B.
Bocci A.
Bodek A.
Bortoletto D.
Boudreau J.
Boveia A.
Brau B.
Brigliadori L.
Brisuda A.
Bromberg C.
Brucken E.
Bucciantonio M.
Budagov J.
Budd H.S.
Budd S.
Burkett K.
Busetto G.
Bussey P.
Buzatu A.
Calancha C.
Camarda S.
Campanelli M.
Campbell M.
Canelli F.
Canepa A.
Carls B.
Carlsmith D.
Carosi R.
Carrillo S.
Carron S.
Casal B.
Casarsa M.
Castro A.
Catastini P.
Cauz D.
Cavaliere V.
Cavalli-Sforza M.
Cerri A.
Cerrito L.
Chen Y.C.
Chertok M.
Chiarelli G.
Chlachidze G.
Chlebana F.
Cho K.
Chokheli D.
Chou J.P.
Chung W.H.
Chung Y.S.
Ciobanu C.I.
Ciocci M.A.
Clark A.
Compostella G.
Convery M.E.
Conway J.
Corbo M.
Cordelli M.
Cox C.A.
Cox D.J.
Crescioli F.
Cuenca Almenar C.
Cuevas J.
Culbertson R.
Abstract
We report on a search for anomalous production of Z boson pairs through a massive resonance decay in data corresponding to 2.5-2.9fb-1 of integrated luminosity in pp̄ collisions at √s=1.96TeV using the CDF II detector at the Fermilab Tevatron. This analysis, with more data and channels where the Z bosons decay to muons or jets, supersedes the 1.1fb-1 four-electron channel result previously published by CDF. In order to maintain high efficiency for muons, we use a new forward tracking algorithm and muon identification requirements optimized for these high signal-to-background channels. Predicting the dominant backgrounds in each channel entirely from sideband data samples, we observe four-body invariant mass spectra above 300GeV/c2 that are consistent with background. We set limits using the acceptance for a massive graviton resonance that are 7-20 times stronger than the previously published direct limits on resonant ZZ diboson production. © 2011 American Physical Society.
Volume
83
Issue
11
Language
English
OCDE Knowledge area
Física de partículas, Campos de la Física
Física nuclear
Scopus EID
2-s2.0-79960793431
Source
Physical Review D - Particles, Fields, Gravitation and Cosmology
ISSN of the container
15507998
DOI of the container
10.1103/PhysRevD.83.112008
Sponsor(s)
Science and Technology Facilities Council - ST/H001026/1
Science and Technology Facilities Council - ST/H001026/2
Science and Technology Facilities Council - ST/H001069/1
Science and Technology Facilities Council - ST/H001077/1
Japan Society for the Promotion of Science - 18071002
Sources of information:
Directorio de Producción Científica
Scopus