Article
Physics, Particles & Fields
Shing Yan Li, Yu-Cheng Qiu, S-H Henry Tye
Summary: Guided by the naturalness criterion for a exponentially small cosmological constant, a new 4-dimensional N=1 non-linear supergravity model is proposed in this study. It includes the minimal supersymmetric standard model and other related concepts, using a nilpotent superfield to eliminate the unwanted parts and ending up with the standard model.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Oleg Andreev
Summary: In this study, a string theory construction was proposed to investigate the potential of two heavy quarks coupled to a light quark. The results revealed the universality of string tension and factorization at small separations, as well as an estimate of the string breaking distance. The study also discussed the heavy quark-quark potential and its relation to the Lipkin rule.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Igor Broeckel, Michele Cicoli, Anshuman Maharana, Kajal Singh, Kuver Sinha
Summary: The paper re-examines the realisation of the QCD axion in string theory, studying the statistics of axion physics in the string landscape. It is found that in type IIB flux compactifications, the closed string axions have a decay constant and mass spectrum distribution that features a logarithmic pattern, rather than a power-law distribution.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Min-Seok Seo
Summary: We studied the brane/flux annihilation in the double-throat system and found that by placing branes at one of the throat tips, the difference between the two throats can be reduced through a transition to the supersymmetric vacuum. We also compared our findings with the thraxion scenario, which also involves differences in the NSNS 3-form flux distributions in the two throat regions.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Seung J. Lee, Yuichiro Nakai, Motoo Suzuki
Summary: This paper presents a mechanism for stabilizing the intervals between multiple 3-branes in a warped extra dimension and computes the mass spectrum and couplings of the radion-scalar field system and Kaluza-Klein gravitons.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Seung J. Lee, Yuichiro Nakai, Motoo Suzuki
Summary: We propose a new framework that addresses the electroweak naturalness problem and the axion high quality problem simultaneously. By introducing doubly composite dynamics and an extra dimension model, we solve the hierarchy problem and axion quality problem.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Yuta Hamada, Arthur Hebecker, Gary Shiu, Pablo Soler
Summary: This paper discusses the explicit dS proposals in string theory and the desire to derive the relevant scalar potential directly from a local 10d Lagrangian for better control of gaugino condensation and dS constructions in string theory.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Marco Frasca, Anish Ghoshal
Summary: The study investigates non-perturbative regimes in non-Abelian theories and demonstrates that the physical spectrum of the theory is corrected by an infinite number of derivatives at a non-perturbative level. Dyson-Schwinger equations in differential form were derived for two-point correlation functions, revealing that the non-local counterpart also exhibits a mass gap, with exponential damping in the deep UV. The research points out potential implications in particle physics and cosmology, as well as discusses aspects of non-local QCD-like scenarios.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Artur Amorim, Miguel S. Costa, Matti Jarvinen
Summary: In this study, Regge theory in a bottom-up holographic model for QCD in the Veneziano limit is explored with the backreaction of quarks to gluon dynamics included, leading to a successful fit to the meson spectrum. The model is extended to include higher spin fields dual to the Pomeron and meson Regge trajectories, enabling a fit to masses of mesons with spins J = 2, 3, and 4, as well as experimental data of total cross-sections sigma(gamma gamma -> X), sigma(gamma p -> X) and sigma(pp -> X). The obtained chi(2) d.o.f. of 0.74 for 199 experimental points indicates a good agreement for the cross sections.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Alexander Gussmann
Summary: The study explores the photon ring and its polarization structure in a black hole image, revealing a unique polarimetric structure due to the coupling between axions and photons. By measuring these patterns, it can provide a way of determining the mixed anomaly coefficient and discuss the conditions for the presence of supermassive black holes in galaxies pierced by cosmic strings.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Rouzbeh Allahverdi, Igor Brockel, Michele Cicoli, Jacek K. Osinski
Summary: Explicit string models face challenges in realizing inflation and low-energy supersymmetry, but early matter domination driven by string moduli can potentially alter dark matter abundance and imply superheavy neutralino dark matter with mass around 10(10)-10(11) GeV, which may help explain recent ultra-high-energy neutrino detections by IceCube and ANITA through dark matter decay.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Joseph L. Lamborn, Tianjun Li, James A. Maxin, Dimitri Nanopoulos
Summary: Researchers have uncovered a solution for the discrepancy in the muon's anomalous magnetic moment using the F-SU(5) model, which includes additional TeV-Scale vector-like multiplets. By introducing No-Scale supersymmetry breaking, they were able to alleviate the tension between the Standard Model and observations. The calculations in F-SU(5) resulted in a robust Δa(μ)(SUSY) that aligns with experimental observations.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Anthony Ashmore, Sebastian Dumitru, Burt A. Ovrut
Summary: The article reviews the strongly coupled heterotic M-theory vacuum for both the observable and hidden sectors of the B-L MSSM theory, discussing bundle constraints and gaugino condensation, identifying a low condensation scale line bundle compatible with LHC energy scales, computing moduli-dependent coefficients, and deriving a low-energy effective Lagrangian satisfying phenomenological constraints.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Souvik Banerjee, Ulf Danielssonb, Suvendu Giri
Summary: In this paper, the pivotal role of strings in the model realizing de Sitter using an expanding bubble is emphasized. By using the end points of radially stretched strings, matter sourcing gravity induced on the bubble wall can be obtained, leading to a reinterpretation of the possible volume divergence as mass renormalization in four dimensional particle physics. It is argued that the residual time dependence in the bulk can be automatically cured in the presence of these stringy sources.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Astronomy & Astrophysics
Avik Banerjee, Arnab Kundu, Rohan R. Poojary
Summary: In this article, we provide explicit evidence for the occurrence of maximal chaos in a strongly coupled large Nc gauge theory for a generic probe quark-like defect degrees of freedom. We show that a Schwarzian effective action for the soft sector emerges and couples with other modes, in the infra-red. Evidence of maximal chaos away from extremality on a D-brane horizon is also presented.
Article
Physics, Particles & Fields
Cyril Closset, Sakura Schafer-Nameki, Yi-Nan Wang
Summary: This paper mainly discusses the five-dimensional and four-dimensional superconformal field theories arising from canonical threefold singularities in M-theory and Type IIB string theory. It studies their Coulomb and Higgs branches, and proposes a relation between the resulting moduli spaces through compactification, mirror symmetry, and gauging. By applying this framework, it determines the Higgs branches of some 5d SCFTs and their magnetic quivers. Finally, it also computes the higher-form symmetries of the 4d and 5d SCFTs.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Lakshya Bhardwaj, Sakura Schafer-Nameki
Summary: The paper describes general methods for determining higher-form symmetry groups of known 5d and 6d superconformal field theories (SCFTs) and 6d little string theories (LSTs). It delves into the complexity and subtleties arising from the interaction of BPS excitations and gauge group centers in describing the 1-form symmetry of these theories. Furthermore, it discusses ways to determine the 2-form symmetry group of 6d theories using the Green-Schwarz coupling associated with the theory.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Marieke van Beest, Antoine Bourget, Julius Eckhard, Sakura Schafer-Nameki
Summary: This paper investigates the generation process of 5d SCFTs from 6d SCFTs, including the decoupling of hypermultiplet matter, RG-flow, and the construction of decoupling trees. By using the approach of generalized toric polygons, magnetic quivers and Hasse diagrams of 5d SCFTs are systematically derived, and the Higgs branches of various 5d KK-theories and their descendants are computed.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Multidisciplinary
Lakshya Bhardwaj, Max Hubner, Sakura Schafer-Nameki
Summary: This study focuses on confinement in 4d N = 1 theories obtained by deforming 4d N = 2 theories of Class S. The researchers argue that confinement in a vacuum of the N = 1 theory can be encoded in the 1-cycles of the associated N = 1 curve. They reproduce the expected properties of confinement in classic examples and provide tools for probing confinement in non-Lagrangian N = 1 theories.
Article
Physics, Multidisciplinary
Lakshya Bhardwaj, Max Hubner, Sakura Schafer-Nameki
Summary: The study identified the 1-form symmetry group for 4d N = 2 class S theories constructed by compactifying 6d theories on a Riemann surface, discussing the construction process and related elements, as well as exploring the possibility of generalizing the results. Additionally, the 1-form symmetry was derived from a Type IIB realization of class S theories to complement the analysis from 6d.
Article
Physics, Particles & Fields
Cyril Closset, Sakura Schafer-Nameki, Yi-Nan Wang
Summary: The paper explores the physics of superconformal field theories arising from isolated hypersurface singularities. It focuses on canonical isolated hypersurface singularities that allow for smooth crepant resolutions. The 5d and 4d physics of these singularities are discussed, and their 3d reduction and mirrors are determined in many cases. The paper also provides a Mathematica code to compute key quantities for any canonical isolated hypersurface singularity.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Multidisciplinary
Fabio Apruzzi, Lakshya Bhardwaj, Dewi S. W. Gould, Sakura Schafer-Nameki
Summary: We investigate the 2-group symmetries in 6d superconformal field theories, which arise from the mixing between the discrete 1-form symmetry and continuous flavor symmetry group. By applying the approach that is applicable more generally, we classify all 6d superconformal field theories with such 2-group symmetries and discuss the dimension-independent aspects of the analysis. We also provide a mathematical code for computing 2-group symmetries once the dimension specific input is provided.
Article
Physics, Multidisciplinary
Lakshya Bhardwaj, Sakura Schafer-Nameki, Jingxiang Wu
Summary: By gauging symmetries in quantum field theory, dual symmetries related to topological Wilson line defects can be obtained, forming a larger (d-1) × (d-1)-category. In one particular 2-category, the objects are 2d condensation defects constructed from higher-level gauging.
FORTSCHRITTE DER PHYSIK-PROGRESS OF PHYSICS
(2022)
Article
Physics, Multidisciplinary
Max Hubner, David Morrison, Sakura Schafer-Nameki, Yinan Wang
Summary: This paper discusses the application of F-theory on non-compact elliptically fibered Calabi-Yau manifolds, realizing higher-form symmetries. The topology of the boundary of the non-compact elliptic fibration and the construction of relative 2-cycles using Lefschetz thimbles are central to this study. The analysis is applied to various elliptic fibrations, including those with intersections between the discriminant of the elliptic fibration and the boundary. The concrete realization of the 1-form symmetry group is achieved by constructing the associated charged line operator from the elliptic fibration, and its application in computing symmetry topological field theories in elliptic three-folds is demonstrated.
Article
Physics, Multidisciplinary
Fabio Apruzzi, Sakura Schafer-Nameki, Lakshya Bhardwaj, Jihwan Oh
Summary: The article discusses the existence and properties of 2-group symmetries in 5-dimensional superconformal field theories. The authors discover 2-group symmetries in 5-dimensional N=1 abelian gauge theories and determine the global forms of 0-form flavor symmetry groups in 5-dimensional SCFTs. The analysis also includes the study of 2-group symmetries in 5-dimensional N=1 non-abelian gauge theories and their relation to mixed 't Hooft anomalies between 1-form and 0-form symmetries.
Article
Physics, Multidisciplinary
Lakshya Bhardwaj, Simone Giacomelli, Max Hubner, Sakura Schafer-Nameki
Summary: This paper studies codimension-two defects in 6d N=(2,0) theories, and finds that the line defects living inside these codimension-two defects form a defect group. These relative defects provide boundary conditions for topological defects of the 7d bulk TQFT and play a key role in the construction of 4d N=2 Class S theories.
Article
Physics, Multidisciplinary
Lakshya Bhardwaj, Lea E. Bottini, Sakura Schafer-Nameki, Apoorv Tiwari
Summary: We propose a procedure to capture general non-invertible symmetries of d-dimensional quantum field theories using the data of a higher-category. This procedure captures the local properties of topological defects associated with the symmetries. We also discuss the fusion of topological defects and explain that the phenomenon of dimension-changing fusions can be understood as higher-morphisms of the higher-category describing the symmetry.
Article
Physics, Multidisciplinary
Michele Del Zotto, Inaki Garcia-Etxebarria, Sakura Schafer-Nameki
Summary: This paper presents a method for determining the 2-group structure from the boundary geometry of M-theory background, and illustrates and confirms the results on 2-groups from geometric engineering in specific backgrounds.
Article
Astronomy & Astrophysics
Fabio Apruzzi, Marieke van Beest, Dewi S. W. Gould, Sakura Schafer-Nameki
Summary: This study focuses on confinement in 4d N = 1 SU(N) Super-Yang Mills theory, with an emphasis on the 1-form symmetry and its relation to chiral symmetry breaking. By examining the topological couplings in the 5d truncation of the Klebanov-Strassler solution, the determination of the 1-form symmetry and its 't Hooft anomalies is identified. The research also reveals an infrared 4d topological field theory that realizes chiral symmetry breaking and matches the mixed anomaly, shedding light on the connection between different symmetries in the theory.
Article
Physics, Particles & Fields
Cyril Closset, Simone Giacomelli, Sakura Schaefer-Nameki, Yi-Nan Wang
Summary: Canonical hypersurface singularities in M-theory and Type IIB string theory lead to 5d and 4d superconformal field theories (SCFTs), respectively. This paper focuses on a specific class of 'trinion' singularities in Type IIB, which give rise to 4d N = 2 SCFTs known as Dpb(G)-trinions. Reducing these 4d and 5d SCFTs to 3d N = 4 theories helps determine their electric and magnetic quivers.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)