Journal article
Search for Z' resonances decaying to tt in dilepton + jets final states in pp collisions at [radical]s = 7 TeV
Physical review. D, Particles, fields, gravitation, and cosmology, Vol.87(7), 072002
04/01/2013
DOI: 10.1103/PhysRevD.87.072002
Abstract
A search for resonances decaying to top quark-antiquark pairs is performed using a dilepton + jets data sample recorded by the CMS experiment at the LHC in pp collisions at [radical]s = 7 TeV corresponding to an integrated luminosity of 5.0 fb super(-1). No significant deviations from the standard model background are observed. Upper limits are presented for the production cross section times branching fraction of top quark-antiquark resonances for masses from 750 to 3000 GeV. In particular, the existence of a leptophobic topcolor particle Z' is excluded at the 95% confidence level for resonance masses M sub(Z') < 1.3 TeV for [Gamma] sub(Z') = 0.012M sub(Z'), and M < 1.9 TeV for [Gamma] sub(Z') = 0.10M sub(Z').
Details
- Title: Subtitle
- Search for Z' resonances decaying to tt in dilepton + jets final states in pp collisions at [radical]s = 7 TeV
- Creators
- S ChatrchyanCMS Collaboration
- Contributors
- Y Onel (Contributor) - University of Iowa, Physics and Astronomy
- Resource Type
- Journal article
- Publication Details
- Physical review. D, Particles, fields, gravitation, and cosmology, Vol.87(7), 072002
- DOI
- 10.1103/PhysRevD.87.072002
- ISSN
- 1550-7998
- eISSN
- 1550-2368
- Publisher
- American Physical Society
- Grant note
- DOI: 10.13039/100000015, name: U.S. Department of Energy; DOI: 10.13039/100000001, name: National Science Foundation
- Language
- English
- Date published
- 04/01/2013
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984199665502771
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