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Measurement of the fraction of tt̄ production via gluon-gluon fusion in pp̄ collisions at s=1.96TeV

Abstract:

We present a measurement of the ratio of the tt̄ production cross section via gluon-gluon fusion to the total tt̄ production cross section in pp̄ collisions at s=1.96TeV at the Tevatron. Using a data sample with an integrated luminosity of 955pb-1 recorded by the CDF II detector at Fermilab, we select events based on the tt̄ decay to lepton+jets. Using an artificial neural network technique we discriminate between tt̄ events produced via qq̄ annihilation and gg fusion, and find Gf=σ(gg→tt̄)/ ...

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Publisher copy:
10.1103/PhysRevD.79.031101

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Journal:
Physical Review D More from this journal
Volume:
79
Issue:
3
Publication date:
2009-02-23
DOI:
EISSN:
1550-2368
ISSN:
1550-7998
Language:
English
Pubs id:
pubs:117355
UUID:
uuid:0c41a9e8-a5c8-473b-a6fc-c2ff7eb990ce
Local pid:
pubs:117355
Source identifiers:
117355
Deposit date:
2012-12-19

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