# Electroweak corrections to squark-antisquark production at the LHCb

Hollik, Wolfgang; Lindert, Jonas M; Mirabella, Edoardo; Pagani, Davide (2015). Electroweak corrections to squark-antisquark production at the LHCb. Journal of High Energy Physics, 2015(8):99.

## Abstract

We present the calculation of the electroweak corrections for squark-antisquark pair production at the LHC within the Minimal Supersymmetric Standard Model. Taking into account all possible chirality and light-flavor configurations, we evaluate the NLO EW corrections, which are of $\mathcal{O}\left({\alpha}_s^2\alpha \right)$, as well as the subleading tree-level contributions of $\mathcal{O}\left({\alpha}_s\alpha \right)$ and $\mathcal{O}\left({\alpha}^2\right)$ . Numerical results are presented for several scans in the SUSY parameter space and relevant differential distributions are investigated. The impact of the electroweak corrections is nonnegligible and strongly depends on the chirality configuration of the produced squarks. Our analysis includes a discussion of photon-gluon initiated processes with a focus on the impact of the corresponding large PDF uncertainties.

We present the calculation of the electroweak corrections for squark-antisquark pair production at the LHC within the Minimal Supersymmetric Standard Model. Taking into account all possible chirality and light-flavor configurations, we evaluate the NLO EW corrections, which are of $\mathcal{O}\left({\alpha}_s^2\alpha \right)$, as well as the subleading tree-level contributions of $\mathcal{O}\left({\alpha}_s\alpha \right)$ and $\mathcal{O}\left({\alpha}^2\right)$ . Numerical results are presented for several scans in the SUSY parameter space and relevant differential distributions are investigated. The impact of the electroweak corrections is nonnegligible and strongly depends on the chirality configuration of the produced squarks. Our analysis includes a discussion of photon-gluon initiated processes with a focus on the impact of the corresponding large PDF uncertainties.

## Citations

2 citations in Web of Science®
2 citations in Scopus®

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Item Type: Journal Article, refereed, original work 07 Faculty of Science > Physics Institute 530 Physics English 2015 16 Feb 2016 13:17 05 Apr 2016 20:04 Springer 1029-8479 Publisher DOI. An embargo period may apply. https://doi.org/10.1007/JHEP08(2015)099 http://arxiv.org/abs/1506.01052 (Organisation)
Permanent URL: https://doi.org/10.5167/uzh-121802

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