First measurement of the fraction of top-quark pair production through gluon-gluon fusion

First measurement of the fraction of top-quark pair production through gluon-gluon fusion

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We present the first measurement of σ(gg→tt̄)/ σ(pp̄→tt̄). We use 0.96fb-1 of s=1.96TeV pp̄ collision data recorded with the CDF II detector at Fermilab. Using charged particles with low transverse momentum in tt̄ events, we find σ(gg→ tt̄)/σ(pp̄→tt̄)=0.07±0.14(stat)±0. 07(syst), corresponding to a...

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Bibliographic Details
Main Authors: Aaltonen, T, Adelman, J, Akimoto, T, Albrow, MG, Álvarez González, B, Amerio, S, Amidei, D, Anastassov, A, Annovi, A, Antos, J, Aoki, M, Apollinari, G, Apresyan, A, Arisawa, T, Artikov, A, Ashmanskas, W, Attal, A, Aurisano, A, Azfar, F, Azzi-Bacchetta, P, Azzurri, P, Bacchetta, N, Badgett, W, Barbaro-Galtieri, A, Barnes, V
Format: Journal article
Language:English
Published: 2008

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