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공공누리This item is licensed Korea Open Government License

Title
Search for new heavy particles decaying to ZZ -> llll, lljj in p(p)over bar collisions at root s = 1.96 TeV
Author(s)
공대정조기현
Publication Year
2011-06-01
Abstract
We report on a search for anomalous production of Z boson pairs through a massive resonance decay in
data corresponding to 2:5:9 fb1 of integrated luminosity in pp collisions at
ffiffiffis
p
1:96 TeV 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 1:1 fb1 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 300 GeV=c2 that are consistent with background. We set limits using the
acceptance for a massive graviton resonance that are 70 times stronger than the previously published
direct limits on resonant ZZ diboson production.
Keyword
High Energy Physics; Particle Physics; CDF
Journal Title
Physical Review D
Citation Volume
83
ISSN
1550-7998
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Appears in Collections:
7. KISTI 연구성과 > 학술지 발표논문
URI
https://repository.kisti.re.kr/handle/10580/13930
http://www.ndsl.kr/ndsl/search/detail/article/articleSearchResultDetail.do?cn=NART57204998
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