We present measurements of the forward-backward charge asymmetry in top pair production using 1.9fb-1 of pp̄ collisions at s=1.96TeV recorded with the Collider Detector at Fermilab II. Correcting for acceptance and measurement dilutions we obtain parton-level asymmetries of AFBpp̄=0.17±0.08 in the pp̄ frame and AFBtt̄=0.24±0.14 in the tt̄ frame. The values are consistent with the standard model expectation and disfavor exotic production mechanisms with significant negative values. © 2008 The American Physical Society.

Forward-backward asymmetry in top-quark production in pp̄ collisions at s=1.96TeV / Aaltonen T., Adelman J., Akimoto T., Albrow M.G., Gonzalez B.A., Amerio S., Amidei D., Anastassov A., Annovi A., Antos J., Apollinari G., Apresyan A., Arisawa T., Artikov A., Ashmanskas W., Attal A., Aurisano A., Azfar F., Azzurri P., Badgett W., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - ELETTRONICO. - 101:(2008), pp. 0-0. [10.1103/PhysRevLett.101.202001]

Forward-backward asymmetry in top-quark production in pp̄ collisions at s=1.96TeV

Latino G.;
2008

Abstract

We present measurements of the forward-backward charge asymmetry in top pair production using 1.9fb-1 of pp̄ collisions at s=1.96TeV recorded with the Collider Detector at Fermilab II. Correcting for acceptance and measurement dilutions we obtain parton-level asymmetries of AFBpp̄=0.17±0.08 in the pp̄ frame and AFBtt̄=0.24±0.14 in the tt̄ frame. The values are consistent with the standard model expectation and disfavor exotic production mechanisms with significant negative values. © 2008 The American Physical Society.
2008
101
0
0
Aaltonen T.; Adelman J.; Akimoto T.; Albrow M.G.; Gonzalez B.A.; Amerio S.; Amidei D.; Anastassov A.; Annovi A.; Antos J.; Apollinari G.; Apresyan A.;...espandi
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/1195788
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