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

Adrian Carmona; Mikael Chala; Adam Falkowski; Sara Khatibi; Mojtaba Mohammadi Najafabadi; Gilad Perez; Jos Santiago

doi:10.1007/JHEP07(2014)005

Back

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

Journal article

Peer reviewed

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

Adrian Carmona, Mikael Chala, Adam Falkowski, Sara Khatibi, Mojtaba Mohammadi Najafabadi, Gilad Perez and Jos Santiago

Journal of High Energy Physics, (7), 5

Jul/2014

DOI: https://doi.org/10.1007/JHEP07(2014)005

Files and links (2)

url

https://doi.org/10.1007/JHEP07(2014)005View

Published (Version of record) Restricted

url

https://ezproxy.weizmann.ac.il/login?url=http://dx.doi.org/10.1007/JHEP07(2014)005View

Published (Version of record) Restricted

Abstract

We define a lepton-based asymmetry in semi-leptonic tt production at the LHC. We show that the ratio of this lepton-based asymmetry and the t (t) over bar charge asymmetry, measured as a function of the lepton transverse momentum or the t (t) over bar 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) over bar invariant mass.

Details

Title: From Tevatron's top and lepton-based asymmetries to the LHC
Creators: Adrian Carmona (null)
Mikael Chala (null)
Adam Falkowski (null)
Sara Khatibi (null)
Mojtaba Mohammadi Najafabadi (null)
Gilad Perez (null) - 972WIS_INST___88
Jos Santiago (null)
Resource Type: Journal article
Publication Details: Journal of High Energy Physics, (7), 5; Jul/2014
Number of pages: 23
Language: English
DOI: https://doi.org/10.1007/JHEP07(2014)005
Grant note: Swiss National Science Foundation [SNF 200021-143781]; MINECO [AIC-D-2011-0690, FPA2006-05294, FPA2010-17915]; FPU program; Junta de Andalucia [FQM 101, FQM 6552]; ERC advanced grant Higgs@LHC; GIF; Minerva; IRG; ISF grants; Gruber awardWe thank Adam Martin for discussions and help with the Monte Carlo simulations. M.C. and S.K. would like to thank CERN Theory Group for hospitality during the completion of this project. S.K. and M.M.N. would like to thank of J. Wagner-Kuhr and T. Chwalek for help with the Monte Carlo simulations. J.S. would like to thank M. Perez-Victoria for useful comments on the manuscript. A.C. is supported by the Swiss National Science Foundation under contract SNF 200021-143781. M.C. and J.S. are supported by MINECO grants AIC-D-2011-0690, FPA2006-05294, FPA2010-17915 and the FPU program (M.C.) and by Junta de Andalucia grants FQM 101 and FQM 6552. The work of A.F. was supported by the ERC advanced grant Higgs@LHC. G.P. is supported by GIF, Minerva, IRG, ISF grants and by the Gruber award._ALMAME_DELIMITER_
Record Identifier: 993263143603596

Metrics

5 Record Views

See more details