Details

Autor(en) / Beteiligte

• Abrahantes, A.
• Arganda, E.
• Peñaranda, S.

Titel

Top-quark polarization and asymmetries at the LHC in the effective description of squark interactions

Ist Teil von

• The European physical journal. C, Particles and fields, 2015, Vol.75 (1), p.1-17, Article 37

Ort / Verlag

Berlin/Heidelberg: Springer Berlin Heidelberg

Erscheinungsjahr

2015

Quelle

EZB-FREE-00999 freely available EZB journals

Beschreibungen/Notizen

• A detailed study of top-quark polarizations and t t ¯ charge asymmetries, induced by top-squark-pair production at the LHC and the subsequent decays t ~ → t χ ~ 1 0 , is performed within the effective description of squark interactions, which includes the effective Yukawa couplings and another logarithmic term encoding the supersymmetry breaking. This effective approach is more suitable for its introduction into Monte-Carlo simulations and we make use of its implementation in MadGraph in order to investigate the possibilities of the charge asymmetry A C , measured at the LHC and consistent with SM expectations, to discriminate between different SUSY scenarios and analyze the implications of these scenarios in the top polarizations and related observables.