A composite Higgs model analysis of forward-backward asymmetries in the production of tops at Tevatron and bottoms at LEP and SLC
We perform a joint analysis of the prediction of composite Higgs models for the discrepancies of the forward-backward asymmetries of top and bottom quarks at Tevatron and LEP+SLC, respectively. We build a two sector model which can be thought as an effective low energy description of 5D warped model...
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2011
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| LEADER | 13295caa a22010097a 4500 | ||
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| 001 | PAPER-23612 | ||
| 003 | AR-BaUEN | ||
| 005 | 20230518205519.0 | ||
| 008 | 190411s2011 xx ||||fo|||| 00| 0 eng|d | ||
| 024 | 7 | |2 scopus |a 2-s2.0-80053150612 | |
| 040 | |a Scopus |b spa |c AR-BaUEN |d AR-BaUEN | ||
| 100 | 1 | |a Álvarez, E. | |
| 245 | 1 | 2 | |a A composite Higgs model analysis of forward-backward asymmetries in the production of tops at Tevatron and bottoms at LEP and SLC |
| 260 | |c 2011 | ||
| 270 | 1 | 0 | |m Álvarez, E.; CONICET, IFIBA and Departamento de Física, Universidad de Buenos Aires, Pab. 1, 1428 Buenos Aires, Argentina; email: sequi@df.uba.ar |
| 506 | |2 openaire |e Política editorial | ||
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| 520 | 3 | |a We perform a joint analysis of the prediction of composite Higgs models for the discrepancies of the forward-backward asymmetries of top and bottom quarks at Tevatron and LEP+SLC, respectively. We build a two sector model which can be thought as an effective low energy description of 5D warped models and choose the quantum numbers of the fermionic resonances to protect the Z-couplings of the partially composite Standard Model light quarks. We analyze the cross section, forward-backward asymmetry and invariant mass distribution of the top anti-top production at Tevatron, as well as the bottom forward-backward asymmetry and the Z-branching fraction into b-quarks at LEP and SLC, for the two sector model. In the region of the parameter space that naturally leads to the Standard Model spectrum and solves the bottom anomaly, the model improves the top forward-backward asymmetry, giving a prediction of up to 10%, and predicts a small decrease of the t̄t cross section. It also predicts non-universal corrections of the Z-couplings to the light quarks of order 0.001. © SISSA 2011. |l eng | |
| 593 | |a CONICET, IFIBA and Departamento de Física, Universidad de Buenos Aires, Pab. 1, 1428 Buenos Aires, Argentina | ||
| 593 | |a CONICET, Centro Atómico Bariloche and Instituto Balseiro, Av. Bustillo 9500, 8400, S. C. de Bariloche, Argentina | ||
| 593 | |a IFLP, CONICET - Dpto. de Física, Universidad Nacional de La Plata, C.C. 67, 1900 La Plata, Argentina | ||
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| 690 | 1 | 0 | |a TECHNICOLOR AND COMPOSITE MODELS |
| 700 | 1 | |a Roldb, L.D. | |
| 700 | 1 | |a Szynkmanc, A. | |
| 773 | 0 | |d 2011 |g v. 2011 |k n. 5 |p J. High Energy Phys. |x 11266708 |t Journal of High Energy Physics | |
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