Physics with electroweak penguins at LHCb

TL;DR

This paper discusses how electroweak penguin processes in B meson decays, studied at LHCb with 1 fb$^{-1}$ of data, serve as sensitive probes for new physics beyond the Standard Model.

Contribution

It presents the analysis of electroweak penguin processes at LHCb, constraining new physics models using 7 TeV collision data from 2011.

Findings

Constraints on new physics models established

Electroweak penguin processes measured with high precision

LHCb's forward geometry enhances analysis sensitivity

Abstract

Flavour changing neutral currents are only allowed via loop diagrams in the Standard Model (SM). Electroweak penguin processes are therefore sensitive probes for new physics, as physics beyond the Standard Model can enter via virtual particles at the same level as SM physics. The LHCb detector at the LHC with its forward geometry is ideally suited for the analysis of electroweak penguin processes in $B$ meson decays. All analyses are performed with 1 fb$^{-1}$ of collision data recorded at a centre-of-mass energy of 7 TeV in 2011 and constrain new physics models.