Article
Physics, Particles & Fields
Antonella Grassi, James Halverson, Cody Long, Julius L. Shaneson, Benjamin Sung, Jiahua Tian
Summary: This paper studies the 6D localized charged matter spectrum of F-theory on a singular elliptic Calabi-Yau 3-fold. By utilizing the technology of string junctions, the localized charged matter spectrum at intersections of seven-branes is determined, and the number of massless string junctions is computed. The results are in agreement with the predicted results from 6D anomaly cancellation.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Juan L. Manes, Manuel Valle, Miguel A. Vazquez-Mozo
Summary: The study investigates the torsional contributions to the equilibrium partition function in a stationary background, revealing the existence of linear torsional magnetic and vortical effects. The analysis also evaluates the torsional contributions to the constitutive relations, showing the existence of a torsional electric chiral effect.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Tatsuki Nakajima, Tadakatsu Sakai, Ryo Yokokura
Summary: In this study, we discuss the BCF anomaly of massless QCD-like theories, initially obtained by Anber and Poppitz, from the perspective of low energy effective theories. We assume that these theories undergo spontaneous chiral symmetry breaking due to a quark bilinear condensate. By utilizing the 't Hooft anomaly matching condition for the BCF anomaly, we demonstrate that the low energy effective action comprises a chiral Lagrangian, a Wess-Zumino-Witten term, and an interaction term between the eta' meson and the background gauge field for a discrete one-form symmetry. We show that the low energy effective action resolves the quantum inconsistencies associated with the eta' meson, arising from the ambiguity of uplifting the action to a five-dimensional spacetime with a boundary. The eta' term plays a significant role in exploring the emergent higher-group structure at low energies.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Physics, Particles & Fields
Peng Cheng, Ruben Minasian, Stefan Theisen
Summary: We revisit the relation between anomalies in four and six dimensions and the Chern-Simons couplings one dimension below. We argue that the existence of an anomaly cancellation mechanism is a necessary condition for liftability. In addition, the anomaly cancellation and the CS couplings in higher dimensions determine important properties of string-like BPS objects and can be used to impose bounds on admissible theories.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Simone Giacomelli, Carlo Meneghelli, Wolfger Peelaers
Summary: The study focuses on four-dimensional N = 2 superconformal field theories describing D3-branes probing the newly constructed N = 2 S-folds in F-theory. An infinite class of superconformal field theories related to S-fold theories via partial Higgsing is introduced, and various properties of both the S-fold models and this new class of theories are determined using field-theoretical techniques.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Markus Dierigl, Paul-Konstantin Oehlmann, Thorsten Schimannek
Summary: We study the global anomalies of discrete gauge symmetries in six-dimensional supergravities and how they are realized in F-theory. We construct a discrete Green-Schwarz mechanism that depends on a coupling constant choice and a certain quadratic refinement in differential cohomology. By engineering theories with G = Z(3) gauge symmetry and no tensor multiplets, we find a specific choice of the quadratic refinement in F-theory. This leads to new Swampland constraints on the discrete charge spectra of 6d supergravities.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Physics, Particles & Fields
Yoshiki Sato
Summary: We studied the p-dimensional conformal defect of a free Dirac fermion on a d-dimensional flat space and found important properties regarding boundary conditions. For a two-codimensional defect, a double trace deformation triggers a renormalization group flow from the Neumann boundary condition to the Dirichlet boundary condition, with the free energy at the UV fixed point always larger than that at the IR fixed point.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Erich Poppitz, F. David Wandler
Summary: This article explicitly calculates the topological terms that arise in SU(N) gauge theories under different field conditions and the matching conclusions, mainly involving theories with Abelian 0-form symmetry. Through comparative analysis, it is pointed out that the conclusion of anomaly matching differs from the previously thought form.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Sergei Gukov, Po-Shen Hsin, Du Pei
Summary: This paper studies reductions of 6d theories on a d-dimensional manifold, focusing on the interplay between symmetries, anomalies, and dynamics in the resulting (6 -d)-dimensional theory. The refined notion of polarization on the manifold serves to determine the spectrum of operators in T[M-d], which often possess higher-group symmetries. Further investigations include analyzing physical implications such as symmetry breaking and enhancement in the renormalization group flow.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Astronomy & Astrophysics
Monica Jinwoo Kang, Craig Lawrie, Jaewon Song
Summary: A set of four-dimensional N 1/4 2 superconformal field theories labeled by simply laced Lie groups Gamma and G were studied, being constructed by gauging conformal matter SCFTs. The resulting theories have identical central charges for certain choices of Gamma and G, with Schur indices related to super-Yang-Mills theory. The theories can be seen as a generalization of affine quiver gauge theory obtained from probing singularities of type Gamma.
Article
Physics, Particles & Fields
Ferruccio Feruglio
Summary: The study of gauge anomaly cancellation conditions in effective field theories reveals that potential anomalies from the non-renormalizable sector can be removed by adding a local counterterm, ultimately making the condition for gauge anomaly cancellation dependent on the charge assignment of the fermion sector.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Manuel Valle, Miguel A. Vazquez-Mozo
Summary: The study investigates the nondissipative transport induced by the Nieh-Yan anomaly and determines the constitutive relations for various currents. New transport effects driven by background torsion and spin chemical potential are identified, along with an analysis of torsional constitutive relations in two-dimensional systems.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Artem Alexandrov, Pavel Mitkin
Summary: The paper discusses the concept of zilch current for photons as an alternative helicity measure, and extends it to fermion systems. It explores the properties of the fermionic zilch, showing that it exhibits non-trivial contributions known as zilch vortical effects in the presence of medium rotation. These results, combined with previous studies on photon zilch, reveal a wider set of chiral effects parameterized by particle spin and current spin.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Shinji Hirano, Tatsuki Nakajima, Masaki Shigemori
Summary: In this study, stress-tensor correlators in TT-deformed conformal field theories in two dimensions were investigated using a geometrical method. The results reveal a logarithmic correction in the TT-deformed stress-tensor correlators, which is absent in lower-order functions but appears in the four-point function.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Daniel G. Robbins, Eric Sharpe, Thomas Vandermeulen
Summary: This paper introduces a new set of modular-invariant phase factors for orbifolds, which can be used in orbifold calculations. After describing their basic properties, the authors generalize these phase factors to different orbifolds and propose a precise suggestion on how to make these orbifolds equivalent to disjoint unions of other orbifolds. This proposal is validated in numerous examples.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)