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Article
Report number arXiv:2302.10514 ; CERN-TH-2023-028
Title Spectrum of QCD with one flavor: A window for supersymmetric dynamics
Related titleThe spectrum of QCD with one flavour: A Window for Supersymmetric Dynamics
Author(s) Della Morte, Michele (Southern Denmark U., CP3-Origins) ; Jäger, Benjamin (Southern Denmark U., CP3-Origins ; U. Southern Denmark, Odense, DIAS) ; Sannino, Francesco (Southern Denmark U., CP3-Origins ; U. Southern Denmark, Odense, DIAS ; Naples U.) ; Tsang, Justus Tobias (CERN ; Southern Denmark U., CP3-Origins) ; Ziegler, Felix P.G. (Edinburgh U.)
Publication 2023-06-01
Imprint 2023-02-21
Number of pages 17
In: Phys. Rev. D 107 (2023) 114506
DOI 10.1103/PhysRevD.107.114506 (publication)
Subject category hep-th ; Particle Physics - Theory ; hep-lat ; Particle Physics - Lattice
Abstract We compute the spectrum of the low-lying mesonic states with vector, scalar and pseudoscalar quantum numbers in QCD with one flavour. With three colours the fundamental and the two-index anti-symmetric representations of the gauge group coincide. The latter is an orientifold theory that maps into the bosonic sector of N=1 super Yang-Mills theory in the large number of colours limit. We employ Wilson fermions along with tree-level improvement in the gluonic and fermionic parts of the action. In this setup the Dirac operator can develop real negative eigenvalues. We therefore perform a detailed study in order to identify configurations where the fermion determinant is negative and eventually reweight them. We finally compare results with effective field theory predictions valid in the large NC limit and find reasonably consistent values despite NC being only three. Additionally,the spin-one sector provides a novel window for supersymmetric dynamics.
Copyright/License preprint: (License: CC BY-NC-SA 4.0)
publication: © 2023-2025 authors (License: CC BY 4.0), sponsored by SCOAP³



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 Record created 2023-02-22, last modified 2024-08-29


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