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

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...

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Detalles Bibliográficos
Autores principales: Carmona, Adrian, Chala, Mikael, Falkowski, Adam, Khatibi, Sara, Mohammadi Najafabadi, Mojtaba, Perez, Gilad, Santiago, Jose
Lenguaje:eng
Publicado: 2014
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1007/JHEP07(2014)005
http://cds.cern.ch/record/1642488
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author Carmona, Adrian
Chala, Mikael
Falkowski, Adam
Khatibi, Sara
Mohammadi Najafabadi, Mojtaba
Perez, Gilad
Santiago, Jose
author_facet Carmona, Adrian
Chala, Mikael
Falkowski, Adam
Khatibi, Sara
Mohammadi Najafabadi, Mojtaba
Perez, Gilad
Santiago, Jose
author_sort Carmona, Adrian
collection CERN
description 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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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2014
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spelling cern-16424882023-02-10T03:51:52Zdoi:10.1007/JHEP07(2014)005http://cds.cern.ch/record/1642488engCarmona, AdrianChala, MikaelFalkowski, AdamKhatibi, SaraMohammadi Najafabadi, MojtabaPerez, GiladSantiago, JoseFrom Tevatron's top and lepton-based asymmetries to the LHCParticle Physics - PhenomenologyWe 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.We define a lepton-based asymmetry in semi-leptonic t t ¯ production at the LHC. We show that the ratio of this lepton-based asymmetry and the t t ¯ charge asymmetry, measured as a function of the lepton transverse momentum or the t t ¯ 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 be also a powerful discriminant among different models of new physics 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 t t ¯ invariant mass.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.arXiv:1401.2443CERN-PH-TH-2014-005IPM-P.A-333LPT-ORSAY-14-05CERN-PH-TH-2014-005IPM-P.A-333LPT ORSAY 14-05oai:cds.cern.ch:16424882014-01-10
spellingShingle Particle Physics - Phenomenology
Carmona, Adrian
Chala, Mikael
Falkowski, Adam
Khatibi, Sara
Mohammadi Najafabadi, Mojtaba
Perez, Gilad
Santiago, Jose
From Tevatron's top and lepton-based asymmetries to the LHC
title From Tevatron's top and lepton-based asymmetries to the LHC
title_full From Tevatron's top and lepton-based asymmetries to the LHC
title_fullStr From Tevatron's top and lepton-based asymmetries to the LHC
title_full_unstemmed From Tevatron's top and lepton-based asymmetries to the LHC
title_short From Tevatron's top and lepton-based asymmetries to the LHC
title_sort from tevatron's top and lepton-based asymmetries to the lhc
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1007/JHEP07(2014)005
http://cds.cern.ch/record/1642488
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AT chalamikael fromtevatronstopandleptonbasedasymmetriestothelhc
AT falkowskiadam fromtevatronstopandleptonbasedasymmetriestothelhc
AT khatibisara fromtevatronstopandleptonbasedasymmetriestothelhc
AT mohammadinajafabadimojtaba fromtevatronstopandleptonbasedasymmetriestothelhc
AT perezgilad fromtevatronstopandleptonbasedasymmetriestothelhc
AT santiagojose fromtevatronstopandleptonbasedasymmetriestothelhc

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