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arXiv · 1401.2443

From Tevatron's top and lepton-based asymmetries to the LHC

Adrian Carmona·Mikael Chala·Adam Falkowski·Sara Khatibi·Mojtaba Mohammadi Najafabadi·Gilad Perez·Jose Santiago
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Abstract

We define a lepton-based asymmetry in semi-leptonic ttbar production at the LHC. We show that the ratio of this lepton-based asymmetry and the ttbar charge asymmetry, measured as a function of the lepton transverse momentum or the ttbar invariant mass is a robust observable in the Standard Model. It is stable against higher order corrections and mis-modeling effects. We show that this ratio can also be a powerful discriminant among different new physics models and between them and the Standard Model. Finally, we show that a related ratio defined at the Tevatron is also robust as a function of the ttbar invariant mass.

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Adrian Carmona, Mikael Chala, Adam Falkowski, Sara Khatibi, Mojtaba Mohammadi Najafabadi, Gilad Perez, Jose Santiago. 2014-01-10. From Tevatron's top and lepton-based asymmetries to the LHC. https://doi.org/10.1007/jhep07(2014)005

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