Details

Autor(en) / Beteiligte

• Acharya, B S
• Adams, T
• Atramentov, O
• Avila, C
• BackusMayes, J
• Bagby, L
• Banerjee, S
• Baringer, P
• Bartlett, J F
• Bassler, U
• Bean, A
• Beri, S B
• Bezzubov, V A
• Bhatnagar, V
• Blazey, G
• Blessing, S
• Boehnlein, A
• Boos, E E
• Borissov, G
• Bose, T
• Brock, R
• Brown, D
• Bunichev, V
• Burdin, S
• Burnett, T H
• Buszello, C P
• Camacho-Perez, E
• Casey, B C. K.
• Chakrabarti, S
• Chakraborty, D
• Chapon, E
• Cho, D K
• Cho, S W
• Claes, D
• Cooke, M
• Cooper, W E
• Croc, A
• Cutts, D
• Das, A
• Davies, G
• Demina, R
• DeVaughan, K
• Ding, P F
• Dudko, L V
• Dyshkant, A
• Eads, M
• Elvira, V D
• Enari, Y
• Evans, H
• Evdokimov, V N
• Ferbel, T
• Fiedler, F
• Filthaut, F
• Fortner, M
• Gay, P
• Geng, W
• Gerbaudo, D
• Gershtein, Y
• Greder, S
• Greenlee, H
• Gregores, E M
• Gris, Ph
• Gruenendahl, S
• Guillemin, T
• Gutierrez, G
• Hagopian, S
• Harder, K
• Hauptman, J M
• Hedin, D
• Hegab, H
• Heinson, A P
• Herner, K
• Hirosky, R
• Hohlfeld, M
• Hynek, V
• Iashvili, I
• Ito, A S
• Jabeen, S
• Jonckheere, A
• Jung, A W
• Juste, A
• Katsanos, I
• Kermiche, S
• Khalatyan, N
• Kharzheev, Y N
• Kohli, J M
• Kraus, J
• Kupco, A
• Kurca, T
• Kvita, J
• Lebrun, P
• Lee, H S
• Lee, W M
• Lincoln, D
• Lipton, R
• Lobodenko, A
• de Sa, R Lopes
• Maciel, A K. A.
• Malyshev, V L
• Meijer, M M

Titel

Evidence for Spin Correlation in t(t)over-bar Production

Ist Teil von

• Physical review letters, 2012-01, Vol.108 (3), p.032004

Ort / Verlag

United States

Erscheinungsjahr

2012

Quelle

American Physical Society

Beschreibungen/Notizen

• We present a measurement of the ratio of events with correlated t and {bar t} spins to the total number of t{bar t} events. This ratio f is evaluated using a matrix-element-based approach in 729 t{bar t} candidate events with a single lepton {ell} (electron or muon) and at least four jets. The analyzed p{bar p} collisions data correspond to an integrated luminosity of 5.3 fb{sup -1} and were collected with the D0 detector at the Fermilab Tevatron collider operating at a center-of-mass energy {radical}s = 1.96 TeV. Combining this result with a recent measurement of f in dileptonic final states, we find f in agreement with the standard model. In addition, the combination provides evidence for the presence of spin correlation in t{bar t} events with a significance of more than 3 standard deviations.