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

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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Preprints, Working Papers, ...
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https://hal.archives-ouvertes.fr/hal-00930537
Contributor : Sabine Starita Connect in order to contact the contributor
Submitted on : Tuesday, January 14, 2014 - 3:51:30 PM
Last modification on : Sunday, June 26, 2022 - 12:00:31 PM

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  • HAL Id : hal-00930537, version 1
  • ARXIV : 1401.2443

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Adrian Carmona, Mikael Chala, Adam Falkowski, Sara Khatibi, Mojtaba Mohammadi Najafabadi, et al.. From Tevatron's top and lepton-based asymmetries to the LHC. 2014. ⟨hal-00930537⟩

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