Article
Astronomy & Astrophysics
Peng-Cheng Qiu, De-Liang Yao
Summary: The chiral effective meson-baryon Lagrangian for interactions between doubly charmed baryons and Goldstone bosons is constructed up to q(4) order. A total of 8, 32, and 218 linearly independent invariant monomials of O(q(2)), O(q(3)), and O(q(4)) are considered. This Lagrangian allows for studying the chiral dynamics and relevant phenomenology of doubly charmed baryons at complete one-loop level, and also includes a discussion on the nonrelativistic reduction of the Lagrangian for completeness.
Article
Physics, Nuclear
Daren Zhou
Summary: This paper studies the renormalization of the iterated one-pion exchange in chiral effective field theory for antinucleon-nucleon scattering. It further examines the higher partial waves with total angular momenta J ≤ 3 and shows the necessity of contact interactions in attractive singular tensor potential channels at leading order. The results are compared with energy-dependent partial-wave analysis of (N)N scattering data and the application of chi EFT to the nucleon-nucleon system is discussed.
Article
Multidisciplinary Sciences
B. Behzadmoghaddam, M. Radin, S. Bayegan
Summary: In this paper, the chiral effective field theory is used to study the spin singlet channel S-1(0) of proton-proton scattering, adopting a new suggested power counting. The pp zero scattering amplitude is reproduced by including one pion exchange at leading order (LO) and the Coulomb interaction between protons at next-to-leading order (NLO). This provides a systematic improvement up to NLO compared to the result obtained from the Nijm93 potential model.
SCIENTIFIC REPORTS
(2023)
Article
Astronomy & Astrophysics
Dyana C. Duarte, Saul Hernandez-Ortiz, Kie Sang Jeong, Larry D. McLerran
Summary: The theory presents a field theoretical description of quarkyonic matter, incorporating quark, nucleon, and ghost fields coupling to mesonic degrees of freedom. It becomes an effective field theory of nucleons at low baryon density, reproducing nucleonic matter phenomenology, accommodating chiral symmetry restoration, and generating a shell of nucleons at the Fermi surface. Quark-nucleon duality is achieved by inclusion of ghost fields to compensate for extra degrees of freedom beyond those of quarks.
Article
Physics, Nuclear
Rui Peng, Songlin Lyu, Sebastian Konig, Bingwei Long
Summary: A momentum-dependent formulation based on a stationary spin-0 and isospin-1 dibaryon field is proposed to improve convergence of chiral effective field theory in the S-1(0) channel of NN scattering. Rapid order-by-order convergence is found in S-1(0). The study also investigates the triton binding energy and compares it to standard chiral effective field theory with partly perturbative pions, while examining the consistency of the chiral Lagrangian for the new formulation.
Article
Physics, Nuclear
Vadim Lensky, Astrid Hiller Blin, Vladimir Pascalutsa
Summary: The study calculates the forward unpolarized doubly-virtual Compton scattering off the deuteron within the framework of pionless effective field theory, providing important insights for future experiments related to the extracted physical quantities. The results of the study also offer a high-precision model-independent input for the calculation of the two-photon-exchange correction to the Lamb shift of muonic deuterium.
Article
Physics, Nuclear
S. K. Saha, D. R. Entem, R. Machleidt, Y. Nosyk
Summary: We present local, position-space chiral NN potentials through four orders of chiral effective field theory. Our potentials accurately reproduce the NN data below 190 MeV and show substantial agreement with the phenomenological AV18 potential in the intermediate range. These potentials provide a solid basis for systematic ab initio calculations of nuclear structure and reactions, and may help solve outstanding problems in microscopic nuclear structure.
Article
Astronomy & Astrophysics
P. M. Copeland, Chueng-Ryong Ji, W. Melnitchouk
Summary: The study computes the self-energies of flavor SU(3) octet and decuplet baryons within a relativistic chiral effective theory framework, deriving the leading nonanalytic chiral behavior for the masses. A finite-range regularization consistent with Lorentz and gauge invariance is applied, and the relative importance of various meson-baryon loop contributions to the self-energies is numerically studied. A comparison is made between relativistic results and earlier approximations within the heavy baryon limit.
Article
Astronomy & Astrophysics
Curtis D. Abell, Derek B. Leinweber, Anthony W. Thomas, Jia-Jun Wu
Summary: The process of renormalization in nonperturbative Hamiltonian effective field theory (HEFT) is examined in the Delta-resonance scattering channel. HEFT provides a bridge between the infinite-volume scattering data of experiment and the finite-volume spectrum of energy eigenstates in lattice QCD, and examines the sensitivity of the finite-volume spectrum and state composition on the regulator.
Article
Physics, Nuclear
Sean B. S. Miller, Andreas Ekstrom, Christian Forssen
Summary: In this paper, the efficiency, precision, and accuracy of computing elastic nucleon-nucleon (NN) scattering amplitudes with the wave-packet continuum discretisation method (WPCD) are analyzed. The results show that WPCD is a promising method for computationally efficient calculations of NN scattering amplitudes, with the potential for further improvement in accuracy by increasing the number of wave-packets.
JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
(2022)
Article
Astronomy & Astrophysics
Matthias F. M. Lutz, Xiao-Yu Guo, Yonggoo Heo, C. L. Korpa
Summary: In this study, lattice QCD data in the open-charm sector is analyzed based on the chiral SU(3) Lagrangian. The low-energy constants are adjusted to reproduce the open-charm meson masses on lattice QCD ensembles. The effect of lefthand cuts is considered for the first time, and coupled-channel interaction terms are used. The elastic and inelastic scattering phase shifts are faithfully reproduced on ensembles with different pion masses.
Article
Physics, Nuclear
Maheshwor Poudel, Daniel R. Phillips
Summary: This study applies an effective field theory to investigate low-energy He-3-alpha elastic scattering and computes the high-order amplitude. By analyzing recent measurement data, it is found that including data on the analyzing power is crucial for determining the sign of the p-wave splitting. The combination of the analyzing power and SONIK data effectively constrain all the effective-range parameters.
JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
(2022)
Article
Astronomy & Astrophysics
Fangcheng He, Chueng-Ryong Ji, W. Melnitchouk, A. W. Thomas, P. Wang
Summary: In this study, spin-averaged generalized parton distributions (GPDs) of sea quarks in the proton at zero skewness are calculated using nonlocal covariant chiral effective theory. The results provide flavor asymmetries for sea quarks and strange form factors, which are compared with phenomenological extractions and lattice QCD.
Article
Computer Science, Artificial Intelligence
Zhantao Chen, Cheng Peng, Alexander N. Petsch, Sathya R. Chitturi, Alana Okullo, Sugata Chowdhury, Chun Hong Yoon, Joshua J. Turner
Summary: Advanced experimental measurements play a crucial role in driving theoretical developments and uncovering novel phenomena in condensed matter and materials physics. However, the scarcity of large-scale facility resources often poses limitations. In this study, we introduce a methodology that utilizes the Bayesian optimal experimental design paradigm to efficiently extract key quantum spin fluctuation parameters from XPFS data. Our method is compatible with existing theoretical simulation pipelines and can also be combined with fast machine learning surrogate models to accelerate data collection and scientific discoveries.
MACHINE LEARNING-SCIENCE AND TECHNOLOGY
(2023)
Article
Mathematics
Ting-Ting Gu, Tie-Jun Cui
Summary: This study investigates the electromagnetic scattering of a meta-surface using the Statistic Estimation Averaging method (SEAm) and verifies its validity and accuracy. It also proposes a state estimation method for information meta-surface and explains its modulation effect on wireless channels.
Article
Physics, Multidisciplinary
Daniel R. Phillips
Summary: This paper discusses the legacies of Weinberg's application of chiral Lagrangians to nuclear physics, including the use of chiral expansion to organize the interaction of pions and photons with a nucleus, the debate around why and how the potential derived from a chiral Lagrangian should be inserted in the Schrodinger equation, the emergence of pionless EFT as a tool for diagnosing universal correlations in quantum few-body systems of different sizes, and the shift in expectations for nuclear physics calculations.
Article
Physics, Nuclear
Maheshwor Poudel, Daniel R. Phillips
Summary: This study applies an effective field theory to investigate low-energy He-3-alpha elastic scattering and computes the high-order amplitude. By analyzing recent measurement data, it is found that including data on the analyzing power is crucial for determining the sign of the p-wave splitting. The combination of the analyzing power and SONIK data effectively constrain all the effective-range parameters.
JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
(2022)
Article
Astronomy & Astrophysics
P. Capel, D. R. Phillips, H-W Hammer
Summary: In this study, the breakup of Be-11 was calculated using Halo Effective Field Theory and the Dynamical Eikonal Approximation, with the inclusion of an effective Be-10-n-target force. The results show an improved description of neutron-energy and angular spectra on a C-12 target, especially near the Be-11 5/2(+) state. By adjusting the range parameters of the three-body force, a reasonable description of data in the region of the 3/2(+) Be-11 state was also achieved, demonstrating the sensitivity of the overlap integral structure governing Be-11 s-to-d-state transitions induced by the three-body force.
Article
Physics, Nuclear
J. A. Melendez, C. Drischler, R. J. Furnstahl, A. J. Garcia, Xilin Zhang
Summary: The article provides an overview of the application of model order reduction (MOR) in fast and accurate emulators for nuclear systems. It focuses on eigen-emulators and variational emulators, and offers guidance on the relevant MOR theory and successful applications.
JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
(2022)
Correction
Physics, Nuclear
Maheshwor Poudel, Daniel R. Phillips
JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
J. A. Cowan, R. J. Furnstahl
Summary: This report analyzes the origin of enantiomeric selectivity from the perspective of the RNA World model. It shows that the parity non-conserving weak nuclear interaction is sufficient to differentiate between two enantiomeric forms over geologically relevant time scales. The presence of metal ions also plays a significant role in chiral selection.
ACS EARTH AND SPACE CHEMISTRY
(2022)
Review
Physics, Multidisciplinary
C. Drischler, J. A. Melendez, R. J. Furnstahl, A. J. Garcia, Xilin Zhang
Summary: The BUQEYE collaboration introduces projection-based, reduced-order emulators for low-energy nuclear physics applications. These emulators are fast surrogate models capable of approximating high-fidelity models. We discuss variational and Galerkin projection methods, emphasize the benefits of offline-online decompositions, and explore how these concepts lead to emulators for bound and scattering systems that enable fast and accurate calculations using different model parameter sets. These emulators can be readily adapted for practitioners' own work as interactive, open-source Python code.
FRONTIERS IN PHYSICS
(2023)
Article
Physics, Nuclear
A. J. Garcia, C. Drischler, R. J. Furnstahl, J. A. Melendez, Xilin Zhang
Summary: In this paper, we extend a scattering emulator based on the Kohn variational principle to momentum space with arbitrary boundary conditions to address the issue of Kohn anomalies. We compare it with a Lippmann-Schwinger equation emulator and introduce a quasi-spline-based approach for the Kohn variational principle-based emulator. The findings show that all three emulators perform well, although there are trade-offs between accuracy and speed.
Article
Physics, Nuclear
P. Maris, R. Roth, E. Epelbaum, R. J. Furnstahl, J. Golak, K. Hebeler, T. Huether, H. Kamada, H. Krebs, H. Le, Ulf -G. Meissner, J. A. Melendez, A. Nogga, P. Reinert, R. Skibinski, J. P. Vary, H. Witala, T. Wolfgruber
Summary: This paper presents a comprehensive investigation on few-nucleon systems as well as light and medium-mass nuclei, using the current Low Energy Nuclear Physics International Collaboration two-nucleon interactions and three-nucleon forces. By considering higher-order corrections and performing correlated truncation error analysis, the resulting Hamiltonian is shown to successfully predict various observables and spectra of nucleon-deuteron scattering and light p-shell nuclei. However, the charge radii are found to be underpredicted by approximately 10% for the oxygen isotopes and almost 20% for 40Ca and 48Ca.
Article
Physics, Nuclear
V Cirigliano, Z. Davoudi, J. Engel, R. J. Furnstahl, G. Hagen, U. Heinz, H. Hergert, M. Horoi, C. W. Johnson, A. Lovato, E. Mereghetti, W. Nazarewicz, A. Nicholson, T. Papenbrock, S. Pastore, M. Plumlee, D. R. Phillips, P. E. Shanahan, S. R. Stroberg, F. Viens, A. Walker-Loud, K. A. Wendt, S. M. Wild
Summary: This article presents the results of a study on the calculation of nuclear matrix elements for neutrinoless double-beta decay. It discusses recent progress, uncertainty quantification, and future plans to provide accurate and precise matrix elements.
JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
(2022)
Article
Physics, Nuclear
A. C. Semposki, R. J. Furnstahl, D. R. Phillips
Summary: Bayesian model mixing is a statistical technique used to combine models with different predictive power. In this study, we apply this technique to combine two function expansions that are valid at different values of a coupling constant. We explore three different mixing methods and find that using a Gaussian process produces the best results.
Article
Physics, Nuclear
A. J. Tropiano, S. K. Bogner, R. J. Furnstahl, M. A. Hisham
Summary: In this study, we described the quasi-deuteron model at low RG resolution and determined the Levinger constant. By comparing momentum distributions for different nuclei and NN interactions, we predicted the Levinger constant and compared it with experimental results. We found that the predictions at low RG resolution were in good agreement with experimental data when using different interactions and initial operators.
Article
Physics, Nuclear
Xilin Zhang, R. J. Furnstahl
Summary: The researchers developed emulators for solving quantum three-body scattering problems using a combination of variational method and eigenvector continuation concept. The emulators were shown to be accurate and efficient through a nuclear-physics model, and the researchers argued that this strategy could be applied to other fields as well.
Correction
Physics, Nuclear
P. Capel, D. R. Phillips, H. -W. Hammer