2018/11/05 by Björn Wellegehausen, Wellegehausen, Björn, Andreas Wipf +1
Physics and Astronomy · #Black Holes and Theoretical Physics #FOS: Physical sciences #High Energy Physics - Lattice (hep-lat) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions
paper · pdf · doi:10.48550/arxiv.1811.01784
openalex publication_date 2018/11/05 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
\N=1 supersymmetric QCD (SQCD) is a possible building block of\ntheories beyond the standard model. It describes the interaction between gluons\nand quarks with their superpartners, gluinos and squarks. Since supersymmetry\nis explicitly broken by the lattice regularization, a careful fine-tuning of\noperators is necessary to obtain a supersymmetric continuum limit. For the pure\ngauge sector, \N=1 Supersymmetric Yang-Mills theory, supersymmetry\nis only broken by a non-vanishing gluino mass. If we add matter fields, this is\nno longer true and more operators in the scalar squark sector have to be\nconsidered for fine-tuning the theory. Guided by a one-loop calculation in\nlattice perturbation theory, we show that maintaining chiral symmetry in the\nlight sector is nevertheless an important step. Furthermore, we present first\npreliminary lattice results on the fine-tuning and Ward-identities of SQCD.\n