Article
Astronomy & Astrophysics
Jonathan J. Heckman, Craig Lawrie, Thomas B. Rochais, Hao Y. Zhang, Gianluca Zoccarato
Summary: This paper presents a general procedure for determining the flavor symmetry experienced by D3-branes probing 7-branes in the presence of S-folds, showing a relationship between S-fold generalization of orientifold projection and 4D flavor symmetry algebra, as well as providing insights into how to define F-theory in the presence of S-folds with discrete torsion.
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
Patrick Jefferson, Washington Taylor, Andrew P. Turner
Summary: We analyze vertical flux backgrounds and chiral matter spectra in the (SU(3) x SU(2) x U(1))/Z(6) model using recently developed methods. Our focus is on a specific presentation of the model where the elliptic fiber is a cubic in P-2 over an arbitrary smooth threefold base. We find that vertical fluxes can generate non-zero multiplicities for all chiral matter families satisfying 4D anomaly cancellation, including those of the Minimal Supersymmetric Standard Model.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Physics, Particles & Fields
Martin Bies, Mirjam Cvetic, Ron Donagi, Ling Lin, Muyang Liu, Fabian Ruehle
Summary: This study combines machine learning and algebraic geometry techniques to analyze line bundle cohomologies on families of holomorphic curves. By generating a large amount of data and training a model to provide intuition for cohomology jumps, the researchers construct additional vector-like Higgs pairs in an F-Theory toy model. Further tools from algebraic geometry, particularly Brill-Noether theory, are needed to quantitatively explain the entire dataset. A diagrammatic approach is introduced to express cohomology jumps across the parameter space of each family of matter curves, reflecting a stratification of the F-theory complex structure moduli space in terms of the vector-like spectrum.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Shing Yan Li, Washington Taylor
Summary: We study the massless charged spectrum of U(1) gauge fields in F-theory that arise from flux breaking of a nonabelian group. The U(1) charges that arise in this way can be very large. In particular, using vertical flux breaking, we construct an explicit 4D F-theory model with a U(1) decoupled from other gauge sectors, in which the massless/light fields have charges as large as 657. We argue heuristically that this result may provide an upper bound on charges for light fields under decoupled U(1) factors in the F-theory landscape.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Astronomy & Astrophysics
Shen-Song Wan, Gianluca Giuliani, Marco Ruggieri
Summary: The study focuses on the thermodynamics of helical matter, specifically quark matter with a net helicity nH in equilibrium. Interactions are modeled using the renormalized quark-meson model with two quark flavors, with helical density described through grand-canonical ensemble formalism. The research also explores the transitions from normal quark matter and hadron gas to helical matter, drawing the phase diagram at zero temperature, and investigates the impact of rigid rotation on helical matter, particularly on the fluctuations of nH, which are enhanced by the rotation.
Article
Astronomy & Astrophysics
Florent Baume, Monica Jinwoo Kang, Craig Lawrie
Summary: This paper considers all 4D N=2 S class theories arising from the compactification of exceptional 6D (2,0) SCFTs on a three-punctured sphere. It is found that each of these 4D theories has another origin as a 6D (1,0) SCFT compactified on a torus, which is verified by comparing central charges and flavor symmetry. The structure of each 6D theory is identified as a complex structure deformation of (en, en) minimal conformal matter, corresponding to a Higgs branch renormalization group flow. It is further shown that the partial closure of the punctures in the S class construction replicates this structure. The multiple origins manifest certain aspects of 4D SCFTs, including flavor symmetry enhancements and determination of whether it is a product SCFT. The string theoretic basis for this identification of 4D theories from different origins via mirror symmetry is highlighted.
Article
Astronomy & Astrophysics
Sunghyun Kang, Arpan Kar, Stefano Scopel
Summary: We discuss halo-independent constraints on the Inelastic Dark Matter (IDM) scenario and use the single-stream method to extend the experimental sensitivity. We find that a non-vanishing mass splitting S modifies the sensitivity range and the choice of WIMP speed distribution is important for obtaining constraints. We also examine the thermalization of IDM within the Sun and show that it has minimal impact on the results.
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
(2023)
Article
Environmental Sciences
Junfeng Liu, Shaoxiu Ma, Rensheng Chen
Summary: This study aims to develop a single-camera-based 4D-SfM photogrammetry device and adopt the lawn-mower' survey pattern zigzagging over a 4 x 4 m bare slope to improve the accuracy and stability of reconstructed DEM. The results of the study showed that the image network geometry has the greatest influence on the accuracy of 4D data, and the different processing settings cause the least difference for the zigzag image network geometry with a large number of photos. The zigzag image network geometry can greatly improve the accuracy and stability of ground-based 4D-SfM photogrammetry.
Article
Environmental Sciences
Xiaozhe Yin, Meredith Franklin, Masoud Fallah-Shorshani, Martin Shafer, Rob McConnell, Scott Fruin
Summary: This study presents the largest scale research conducted in a single urban area, using monitoring of different particulate matter concentrations and developing regression and machine learning models to successfully predict 24 elemental components in eight Southern California communities. It was found that incorporating spatiotemporally resolved meteorology into the models improved the accuracy of predictions for particle distribution, especially near roadways for non-tailpipe emissions.
ENVIRONMENT INTERNATIONAL
(2022)
Review
Chemistry, Multidisciplinary
Raha Kaviani, Abolghasem Jouyban, Ali Shayanfar
Summary: This review outlines the crucial importance of pharmaceutical cocrystals in chiral resolution techniques of racemic compounds, discussing different cocrystallization methods.
Article
Astronomy & Astrophysics
Pouya Asadi, Samuel Homiller, Qianshu Lu, Matthew Reece
Summary: It has been shown recently that domain walls resulting from spontaneous breaking of CP symmetry are highly stable and need to be inflated away for a viable cosmology. This study investigates the consequences of this result in Nelson-Barr solutions to the strong CP problem. The upper bound on the scale of spontaneous CP breaking, along with the suppression of dangerous nonrenormalizable operators, places limits on the scale of inflation and reheating after inflation.
Article
Mathematics
Michael Aizenman, Hugo Duminil-Copin
Summary: This study demonstrates the Gaussian distribution of spin fluctuations in four-dimensional Ising-type models and lambda phi(4) fields with lattice ultraviolet cutoff under certain conditions. The key lies in utilizing the random current representation of the models and improving the tree diagram bound through multi-scale analysis with a logarithmic correction term.
ANNALS OF MATHEMATICS
(2021)
Article
Astronomy & Astrophysics
Bruno J. Barros, Alvaro de la Cruz-Dombriz, Francisco S. N. Lobo
Summary: In this study, novel analytical solutions for static and spherically symmetric wormhole geometries threaded by an anisotropic distribution of matter conformally coupled to a scalar ghost field are presented. The dynamics of the scalar field and matter throughout the wormhole, as well as the role played by the nonminimal coupling, are explored. Furthermore, coupled ghosts in the presence of a scalar potential are considered, and the traversability conditions within such geometrical scheme are analyzed.
Review
Multidisciplinary Sciences
Herbert Weigel, Ishmael Takyi
Summary: This study outlines and reviews the computations of polarized and unpolarized nucleon structure functions within the bosonized Nambu-Jona-Lasinio chiral soliton model. It focuses on a consistent regularization prescription for the Dirac sea contribution and presents numerical results from that formulation. The study also reflects on previous calculations on quark distributions in chiral quark soliton models and attempts to provide a broader perspective on them.
