Search for Pair Production of a Heavy Up-Type Quark Decaying to a W Boson and a b Quark in the lepton+jets Channel with the ATLAS Detector
A search is presented for production of a heavy up-type quark (t') together with its antiparticle, assuming subsequent decay to a W boson and a b quark, t't̅ '-->W[superscript+]bW[superscript -]b̅ . The search is based on 1.04 fb-1 of proton-proton collisions at √s=7 TeV collecte...
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society,
2012-09-04T17:55:35Z.
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| Subjects: | |
| Online Access: | Get fulltext |
| Summary: | A search is presented for production of a heavy up-type quark (t') together with its antiparticle, assuming subsequent decay to a W boson and a b quark, t't̅ '-->W[superscript+]bW[superscript -]b̅ . The search is based on 1.04 fb-1 of proton-proton collisions at √s=7 TeV collected by the ATLAS detector at the CERN Large Hadron Collider. Data are analyzed in the lepton+jets final state, characterized by a high transverse momentum isolated electron or muon, high missing transverse momentum, and at least three jets. No significant excess of events above the background expectation is observed. A 95% C.L. lower limit of 404 GeV is set for the mass of the t' quark. United States. Dept. of Energy. National Science Foundation (U.S.). |
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