DOAJ Open Access 2022

Soft gluon resummation for associated squark-electroweakino production at the LHC

Juri Fiaschi Benjamin Fuks Michael Klasen Alexander Neuwirth

Abstrak

Abstract We perform a threshold resummation calculation for the associated production of squarks and electroweakinos at the LHC to the next-to-leading logarithmic (NLL) accuracy. Analytical results for the process-dependent soft anomalous dimension and the hard matching coefficient are presented. The resummed results are matched to fixed-order predictions at next-to-leading order (NLO) in QCD, which are generalised to scenarios with non-universal squark masses and mixings. Numerically, the NLL contributions increase the total NLO cross section by 2% to 6% for squark masses ranging from 1 TeV to 3 TeV, respectively, and they reduce the dependence of the predictions on the factorisation and renormalisation scales from typically ±10% to below ±5%. Our NLO and NLO+NLL calculations have been implemented in the publicly available program Resummino.

Topik & Kata Kunci

Nuclear and particle physics. Atomic energy. Radioactivity

Penulis (4)

Juri Fiaschi

Benjamin Fuks

Michael Klasen

Alexander Neuwirth

Format Sitasi

APA MLA BibTeX

Fiaschi, J., Fuks, B., Klasen, M., Neuwirth, A. (2022). Soft gluon resummation for associated squark-electroweakino production at the LHC. https://doi.org/10.1007/JHEP06(2022)130

Akses Cepat

PDF tidak tersedia langsung

Cek di sumber asli →

Lihat di Sumber doi.org/10.1007/JHEP06(2022)130

Informasi Jurnal

Tahun Terbit: 2022
Sumber Database: DOAJ
DOI: 10.1007/JHEP06(2022)130
Akses: Open Access ✓