Article
Astronomy & Astrophysics
Lu-Meng Liu, Chun-Jian Zhang, Jia Zhou, Jun Xu, Jiangyong Jia, Guang-Xiong Peng
Summary: We demonstrate that the yield ratio of free spectator neutrons in high-energy collisions of Zr-96+Zr-96 and Ru-96+Ru-96 nuclei can be used as a clean tool to investigate the neutron-skin thickness and the slope parameter L of the symmetry energy. We use a state-of-the-art Skyrme-Hartree-Fock-Bogolyubov calculation to analyze the proton and neutron density distributions. The production of free spectator neutrons is not affected by the dynamics in the mid-rapidity region, making the ratio of their multiplicities in ultracentral isobaric collisions a robust observable for constraining the neutron skin and L value.
Article
Chemistry, Multidisciplinary
Kenichi Kato, Shunsuke Ohtani, Masayuki Gon, Kazuo Tanaka, Tomoki Ogoshi
Summary: The spatial arrangement of multiple planar chromophores is an emerging strategy for molecule-based chiroptical materials, and in this study, five pyrene planes were attached to a chiral macrocycle pillar[5]arene to produce a set of chiroptical molecules. The chiroptical response was found to depend on linker structures and substituted patterns due to variable interactions between pyrene units, leading to enhanced dissymmetry factors and response wavelengths.
Article
Physics, Nuclear
Marc Salinas, J. Piekarewicz
Summary: In the past five years, significant progress has been made in determining the equation of state of neutron rich matter. Recent advancements in theory, experiments, and observations have led to refinements in existing energy density functionals. These refinements are based on constraints from pulsar timing, NICER mission data, LIGO-Virgo collaboration results, and chiral effective field theories. Despite these improvements, reproducing the neutron skin thickness of both 208Pb and 48Ca simultaneously remains challenging.
Article
Physics, Nuclear
J. Rijneveen, N. Rijneveen, H. Krebs, A. M. Gasparyan, E. Epelbaum
Summary: In this study, radiative pion photoproduction was calculated within the framework of covariant chiral perturbation theory with explicit Delta(1232) degrees of freedom. The analysis included contributions up to next-to-next-to-leading order, with the extraction of the Delta(+) magnetic moment from experimental data and estimation of errors from truncation using Bayesian approach. Comparisons were made with previous studies within the delta-expansion scheme and Delta-less theory, showing differences in results under the small-scale expansion adjusted for the Delta region.
Article
Materials Science, Multidisciplinary
Luxia Cui, Koichi Deyama, Takafumi Ichiki, Yuto Konishi, Ami Horioka, Takunori Harada, Kohei Ishibashi, Yoshio Hisaeda, Toshikazu Ono
Summary: In this study, novel axially chiral tetra-BF2 complexes with terthiophene modification were synthesized and their photophysical properties were investigated. The terthiophene modification played a crucial role in extending the pi-conjugation and improving intramolecular charge transfer interactions, resulting in different emission colors and high circularly polarized luminescence performance. This work provides a new strategy for developing organic circularly polarized luminescent materials with tunable emission colors and high efficiency.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Optics
V. I. Perevalov, A. Yu. Trokhimovskiy, A. A. Lukashevskaya, O. I. Korablev, A. Fedorova, F. Montmessin
Summary: This article discusses the magnetic dipole and electric quadrupole absorption in carbon dioxide in detail, including selection rules and equations for line intensities. The results were used to analyze the carbon dioxide absorption band in the atmosphere of Mars. The vibrational transition magnetic dipole moment retrieved from the Martian atmosphere is significantly larger than the gyromagnetic ratio.
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
(2021)
Review
Materials Science, Multidisciplinary
Yadong Zhang, Shu Yu, Bing Han, Yunlong Zhou, Xiuwen Zhang, Xiaoqing Gao, Zhiyong Tang
Summary: Due to their magnetic photophysical properties, circularly polarized luminescence (CPL) materials have attracted significant interest. This review provides a comprehensive overview of this field, including theory, experiments, and categorization of CPL-active materials. It also discusses the factors influencing the dissymmetry factor and luminescence efficiency, as well as the opportunities and challenges for enhancing both factors.
Article
Physics, Multidisciplinary
M. Elantkowska, J. Ruczkowski, S. Wilman, M. Suski
Summary: The nuclear quadrupole moment of Sn-109 was determined using a hyperfine structure many-body parametrization method, incorporating recent hyperfine structure measurements for isotopes Sn117-131. Second-order perturbation theory contributions to magnetic dipole hyperfine structure were considered for both even and odd configurations, while second-order perturbation theory contributions to electric quadrupole hyperfine structure, involving spin-orbit correlated hyperfine interactions, were included for the first time.
EUROPEAN PHYSICAL JOURNAL PLUS
(2021)
Article
Physics, Multidisciplinary
G. Sanamyan, B. M. Roberts, J. S. M. Ginges
Summary: The finite distribution of the nuclear magnetic moment across the nucleus contributes to the hyperfine structure as the Bohr-Weisskopf effect. By combining historical muonic-atom measurements with muonic-atom and atomic many-body calculations, we have obtained an empirical value of -0.24o18 thorn % for this effect in the ground and excited s states of atomic 133Cs. These results not only allow for testing cesium atomic wave functions in the nuclear region at an unprecedented 0.2% level but also play a crucial role in the development of precision atomic many-body methods, which is important for increasing the discovery potential of precision atomic searches for new physics, particularly in the case of atomic parity violation in cesium.
PHYSICAL REVIEW LETTERS
(2023)
Article
Engineering, Electrical & Electronic
Huan Zhang, Shuo Wang
Summary: This article develops magnetic dipole moment models based on Maxwell's equations for evaluation and reduction of the near magnetic field of inductors in power electronics systems. The developed model considers the magnetic dipole moments from the winding and the air gaps as the near magnetic field source of an inductor. The superposition of these magnetic dipole moments determines the near magnetic field. The developed model can be easily applied to different configurations of inductors with various winding and air gap arrangements for assessing and reducing the near magnetic field. Simulations and experiments are conducted to validate the developed theory.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2022)
Article
Astronomy & Astrophysics
Zhanibek Omarov, Hooman Davoudiasl, Selcuk Hacromeroglu, Valeri Lebedev, William M. Morse, Yannis K. Semertzidis, Alexander J. Silenko, Edward J. Stephenson, Riad Suleiman
Summary: This segment provides a brief overview of the Symmetric-Hybrid ring design for the storage ring proton electric dipole moment experiment, highlighting critical issues and the advancements made in reducing systematic errors and aligning the ring within available technology.
Article
Physics, Multidisciplinary
Felix Sommer, Kristian Konig, Dominic M. Rossi, Nathan Everett, David Garand, Ruben P. de Groote, Jason D. Holt, Phillip Imgram, Anthony Incorvati, Colton Kalman, Andrew Klose, Jeremy Lantis, Yuan Liu, Andrew J. Miller, Kei Minamisono, Takayuki Miyagi, Witold Nazarewicz, Wilfried Noertershaeuser, Skyy V. Pineda, Robert Powel, Paul-Gerhard Reinhard, Laura Renth, Elisa Romero-Romero, Robert Roth, Achim Schwenk, Chandana Sumithrarachchi, Andrea Teigelhofer
Summary: Nuclear charge radii of Ni-55;56 were measured using collinear laser spectroscopy, and it was found that the trend of charge radii across shell closures is similar to that of calcium. The study also revealed the impact of M1 excitations between spin-orbit partners.
PHYSICAL REVIEW LETTERS
(2022)
Article
Astronomy & Astrophysics
Dongyan Fu, Bao-Dong Sun, Yubing Dong
Summary: In this work, the electromagnetic and gravitational form factors of a spin-3/2 particle, ?? resonance, are simultaneously calculated using a relativistic covariant quark-diquark approach. The obtained form factors are in good agreement with experimental data and comparable to other methods. Additionally, the gravitational form factors giving mechanical properties of the ?? isobar are provided, along with discussions on the sign and interpretation of the D term.
Article
Physics, Nuclear
F. Dalton, V. V. Flambaum, A. J. Mansour
Summary: Deformed nuclei violate time reversal invariance and parity, resulting in enhanced magnetic quadrupole moments. Nuclei with octupole deformation have various electric moments, including octupole moment, electric dipole moment, Schiff moment, and magnetic quadrupole moment. These moments are forbidden by T and P conservation in the laboratory frame, but mixing of opposite parity rotational states in nuclei with octupole deformation allows these moments to appear. This mechanism produces enhanced T, P-violating nuclear moments. The paper also presents estimates for enhanced Schiff moments in various isotopes and discusses the implications for axion dark matter detection in solid state experiments.
Article
Physics, Nuclear
J. Chen, B. P. Kay, T. L. Tang, I. A. Tolstukhin, C. R. Hoffman, H. Li, P. Yin, X. Zhao, P. Maris, J. P. Vary, G. Li, J. L. Lou, M. L. Avila, Y. Ayyad, S. Bennett, D. Bazin, J. A. Clark, S. J. Freeman, H. Jayatissa, C. Muller-Gatermann, A. Munoz-Ramos, D. Santiago-Gonzalez, D. K. Sharp, A. H. Wuosmaa, C. X. Yuan
Summary: In this study, deuteron elastic scattering and inelastic scattering reactions to the first excited state of 15C were investigated using a radioactive beam of 15C in inverse kinematics. The analysis of the experimental data and comparison with theoretical calculations provided insights into the structure of 15C.
Article
Physics, Multidisciplinary
M. Piarulli, A. Baroni, L. Girlanda, A. Kievsky, A. Lovato, Ewing Lusk, L. E. Marcucci, Steven C. Pieper, R. Schiavilla, M. Viviani, R. B. Wiringa
PHYSICAL REVIEW LETTERS
(2018)
Article
Instruments & Instrumentation
Nicolo Tuccori, Teresa Pinheiro, Teresa Pena, Luis C. Alves, Maria Joao Botelho, Joana Raimundo, Carlos Vale
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
(2019)
Article
Physics, Multidisciplinary
Maria Piarulli, Rocco Schiavilla
Summary: Understanding nuclear structure and reactions from first principles has long been a goal of nuclear physics. The development of chiral effective field theory has significantly advanced modeling of nuclear interactions, with many studies focusing on constructing two- and three-nucleon interactions. This article provides a concise overview of local chiral interaction models in configuration space and reports recent results for nuclear systems obtained using these interactions.
Article
Physics, Nuclear
M. Piarulli, S. Pastore, R. B. Wiringa, S. Brusilow, R. Lim
Summary: A better understanding of short-range correlations in nuclei is crucial for current and future electron and neutrino scattering experiments. Nucleon-nucleon correlations and two-body electroweak currents are necessary to explain experimental data on nuclear properties. This study focuses on nucleon-nucleon correlations from a chiral effective field theory perspective and provides new variational Monte Carlo calculations for one-and two-body densities and momentum distributions in A 12 systems. Detailed tables and figures are available online.
Article
Astronomy & Astrophysics
Gernot Eichmann, Eduardo Ferreira, Alfred Stadler
Summary: We explore a new method to calculate the valence light-front wave function of a system of two interacting particles and find excellent agreement with the frequently employed Nakanishi method. The contour-deformation method is also able to handle extensions of the scalar model that mimic certain features of QCD.
Article
Physics, Nuclear
R. Schiavilla, L. Girlanda, A. Gnech, A. Kievsky, A. Lovato, L. E. Marcucci, M. Piarulli, M. Viviani
Summary: Different classes of two-nucleon contact interactions have been developed and fit to experimental data to predict binding energies of nuclei with different energies and masses. These interactions are regularized using multiple cutoffs, including cutoffs for T = 0 and T = 1 channels.
Article
Physics, Nuclear
M. C. Atkinson, W. H. Dickhoff, M. Piarulli, A. Rios, R. B. Wiringa
Article
Physics, Nuclear
G. B. King, L. Andreoli, S. Pastore, M. Piarulli, R. Schiavilla, R. B. Wiringa, J. Carlson, S. Gandolfi
Article
Astronomy & Astrophysics
G. Ramalho, M. T. Pena
Article
Physics, Nuclear
M. Piarulli, I Bombaci, D. Logoteta, A. Lovato, R. B. Wiringa
Article
Astronomy & Astrophysics
G. Ramalho, M. T. Pena, K. Tsushima
Article
Physics, Nuclear
V Cirigliano, W. Dekens, J. de Vries, M. L. Graesser, E. Mereghetti, S. Pastore, M. Piarulli, U. van Kolck, R. B. Wiringa
Article
Astronomy & Astrophysics
Gernot Eichmann, Pedro Duarte, M. T. Pena, Alfred Stadler
Article
Astronomy & Astrophysics
Elmar P. Biernat, Franz Gross, M. T. Pena, Alfred Stadler, Sofia Leitao