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Broken conformal window

Kondo, Dan [Univ. of Tokyo (Japan). Kavli Institute for the Physics and Mathematics of the Universe (WPI)] (ORCID:0000000262683332)·Murayama, Hitoshi [Univ. of Tokyo (Japan). Kavli Institute for the Physics and Mathematics of the Universe (WPI); Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)] (ORCID:0000000157699471)·Noether, Bea [Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)] (ORCID:000000028101437X)·Varier, Digvijay Roy [Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)] (ORCID:0000000246957428)
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Abstract

We show that near the edges of the conformal window of supersymmetric SU(Nc) QCD, perturbed by Anomaly Mediated Supersymmetry Breaking (AMSB), chiral symmetry can be broken depending on the initial conditions of the RG flow. We do so by perturbatively expanding around Banks-Zaks fixed points and taking advantage of Seiberg duality. Interpolating between the edges of the conformal window, we predict that non-supersymmetric QCD breaks chiral symmetry up to N f ≤ 3N c − 1, while we cannot say anything definitive for N f ≥ 3N c at this moment.

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72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDSConformal and W SymmetryNonperturbative EffectsSupersymmetry BreakingSupersymmetry and Duality

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Kondo, Dan [Univ. of Tokyo (Japan). Kavli Institute for the Physics and Mathematics of the Universe (WPI)] (ORCID:0000000262683332), Murayama, Hitoshi [Univ. of Tokyo (Japan). Kavli Institute for the Physics and Mathematics of the Universe (WPI); Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)] (ORCID:0000000157699471), Noether, Bea [Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)] (ORCID:000000028101437X), Varier, Digvijay Roy [Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)] (ORCID:0000000246957428). 2025-04-18. Broken conformal window. https://doi.org/10.1007/jhep04(2025)152

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