2021/05/31 by Andrea Antinucci, Massimo Bianchi, Bianchi M. +2
Mathematics · Physics and Astronomy · #Bar (unit) #Black Holes and Theoretical Physics #Brane cosmology #Calabi–Yau manifold #Charge (physics) #Cosmology and Gravitation Theories #Duality (order theory) #Fixed point #Geometry #Gravitational singularity #Mathematical analysis #Mathematical physics #Mathematics #Orbifold #Orientifold #Particle physics #Particle physics theoretical and experimental studies #Physics #Pure mathematics #Quantum mechanics #Singularity #Theoretical physics #hep-th
paper · pdf · doi:10.1016/j.nuclphysb.2022.115695
41 pages, 23 figures. v2: Improved text, references added
arxiv created 2021/07/26 · openalex publication_date 2022/02/04 · arxiv updated 2022/03/02 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We study the orientifold of the N = 1 superconformal field theories describing D3-branes probing the Suspended Pinch Point singularity, as well as the orientifolds of non-chiral theories obtained by a specific orbifold ℤn of SPP. We find that these models realize a mechanism analogous to the one recently found for the orientifold of the complex Calabi-Yau cone over the Pseudo del Pezzo surface PdP3c: they all flow to a new IR fixed point such that the value of the a-charge is less than half the one of the oriented theory. We also find that the value of a coincides with the charge of specific orientifolds of the toric singularities L^(n,n,n) with n=3n/2 for n even or L^(n,n+1,n) with n=(3n-1)/2 for n odd, suggesting the existence of an IR duality.