20–25 Aug 2023
Universität Hamburg
Europe/Berlin timezone

Probing new physics with charge asymmetries in 2 same sign leptons plus jets final states

21 Aug 2023, 16:30
15m
Hörsaal A (Historic main building)

Hörsaal A

Historic main building

Edmund-Siemers-Allee 1
Parallel session talk Searches for New Physics T10 Searches for New Physics

Speaker

Rosa María Sandá Seoane (Instituto de Fïsica Teórica UAM-CSIC (ES))

Description

We study the impact of three different BSM models in the charge asymmetry defined for the 2SS$\ell$ (with $\ell= e, \mu$) with jets ($n_j\geq2$) final state at the LHC, at $\sqrt{s}=13$ TeV, where the main SM contribution is the $t\bar{t}W$ production. We consider the impact of a heavy neutral scalar/pseudoscalar arising from a 2HDM model; a simplified RPV MSSM model with electrowikino production (Higgsino or wino-like); and an effective theory with dimension 6 four-quark operators. We propose measuring the charge asymmetries differentially with respect to different kinematic observables, and inclusively/exclusively with the number of b-tagged jets in the final state ($n_b\geq\{1, 2, 3\}$). We show that the 2HDM and the four quark operator schemes may be sensitive to the detection of new physics, even for an integrated luminosity of 139 fb$^{-1}$

Collaboration / Activity Phenomenology

Primary authors

Anibal Medina (IFLP (AR)) Aurelio Juste Rozas (ICREA and IFAE (ES)) Ernesto Arganda (Instituto de Fïsica Teórica UAM-CSIC (ES)) Leandro Da Rold (Comisión Nac. de Energía Atómica Centro Atómico Bariloche (AR)) Rosa María Sandá Seoane (Instituto de Fïsica Teórica UAM-CSIC (ES))

Presentation materials