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Evidence for tt̄γ production and measurement of σtt̄γ/σtt̄

Abstract:

Using data corresponding to 6.0fb-1 of pp̄ collisions at √s=1.96TeV collected by the CDF II detector, we present a cross section measurement of top-quark pair production with an additional radiated photon in the central region with 10 GeV or more of transverse energy tt̄γ. The events are selected by looking for a lepton (ℓ or μ), a photon (γ), significant transverse momentum imbalance (ET), large total transverse energy, and three or more jets, with at least one identified as containing a b q...

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Publisher copy:
10.1103/PhysRevD.84.031104

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Journal:
Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume:
84
Issue:
3
Publication date:
2011-08-31
DOI:
EISSN:
1550-2368
ISSN:
1550-7998
URN:
uuid:8fce7fc9-f364-4a0c-9741-ea6c4fb4781d
Source identifiers:
179840
Local pid:
pubs:179840
Language:
English

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