Article
Astronomy & Astrophysics
C. S. Fong, T. Gregoire, A. Tonero
Summary: The article discusses a novel scenario where new physics causes heavy fermion singlets and SM neutrinos to split into pairs of quasi-Dirac states. Above the weak scale, the cosmic matter-antimatter asymmetry can be generated through resonant leptogenesis from the decay of heavy singlets. Nontrivially, the CP violation for leptogenesis is bounded by the light neutrino mass splitting, which can be probed in neutrino oscillation experiments.
Article
Astronomy & Astrophysics
M. Atzori Corona, W. M. Bonivento, M. Cadeddu, N. Cargioli, F. Dordei
Summary: Elastic neutrino-electron scattering is a powerful tool to study neutrino properties. Based on recent results from the LUX-ZEPLIN collaboration, we determine limits on neutrino magnetic moment and neutrino millicharge and discuss the impact of different approximations. The new LUX-ZEPLIN data provides a competitive limit on the neutrino magnetic moment and the most stringent limit on the neutrino millicharge.
Article
Astronomy & Astrophysics
A. Galindo-Uribarri, O. G. Miranda, G. Sanchez Garcia
Summary: We propose the use of isotopically highly enriched detectors for the precise study of CEvNS. By using different isotopes in combination, this method allows for precision neutrino physics, testing Standard Model predictions, and probing new physics scenarios. The simultaneous differential CEvNS measurements with detectors of different isotopic composition can cancel systematic errors and provide extra sensitivity. The method has been demonstrated with three examples, showing its potential for high-precision robust measurements and resolving degeneracies in new physics scenarios.
Article
Physics, Multidisciplinary
D. Akimov, P. An, C. Awe, P. S. Barbeau, B. Becker, V. Belov, I. Bernardi, M. A. Blackston, C. Bock, A. Bolozdynya, J. Browning, B. Cabrera-Palmer, D. Chernyak, E. Conley, J. Daughhetee, J. Detwiler, K. Ding, M. R. Durand, Y. Efremenko, S. R. Elliott, L. Fabris, M. Febbraro, A. Gallo Rosso, A. Galindo-Uribarri, M. P. Green, M. R. Heath, S. Hedges, D. Hoang, M. Hughes, T. Johnson, A. Khromov, A. Konovalov, E. Kozlova, A. Kumpan, L. Li, J. M. Link, J. Liu, K. Mann, D. M. Markoff, J. Mastroberti, P. E. Mueller, J. Newby, D. S. Parno, S. I. Penttila, D. Pershey, R. Rapp, H. Ray, J. Raybern, O. Razuvaeva, D. Reyna, G. C. Rich, J. Ross, D. Rudik, J. Runge, D. J. Salvat, A. M. Salyapongse, K. Scholberg, A. Shakirov, G. Simakov, G. Sinev, W. M. Snow, V. Sosnovstsev, B. Suh, R. Tayloe, K. Tellez-Giron-Flores, I. Tolstukhin, E. Ujah, J. Vanderwerp, R. L. Varner, C. J. Virtue, G. Visser, T. Wongjirad, Y. -R. Yen, J. Yoo, C. -H. Yu, J. Zettlemoyer
Summary: The cross section of coherent elastic neutrino-nucleus scattering (CEvNS) was measured using a CsI[Na] scintillating crystal in a high flux of neutrinos. The COHERENT Collaboration achieved the most precise measurement of CEvNS yet, which is consistent with the standard model. The results placed leading constraints on neutrino nonstandard interactions and tested lepton flavor universality and weak mixing angle.
PHYSICAL REVIEW LETTERS
(2022)
Article
Astronomy & Astrophysics
V Sharma, L. Singh, H. T. Wong, M. Agartioglu, J. W. Chen, M. Deniz, S. Kerman, H. B. Li, C. P. Liu, K. Saraswat, M. K. Singh, V Singh
Summary: Neutrino-nucleus elastic scattering serves as a unique laboratory to study quantum-mechanical coherency effects in electroweak interactions, with deviations characterized quantitatively through a coherency parameter. The relations between the parameter and nuclear form factors were derived, and the cross section dependence on this parameter for various neutrino sources was presented. The values of the parameter were evaluated from experimental data, and the contributions of quantum superpositions and nuclear many-body effects to the interactions were verified through the data analysis.
Article
Nanoscience & Nanotechnology
Audrey Somera, Martin Poncelet, Nicolas Auffray, Julien Rethore
Summary: This study proposes a classification of quasi-periodic structures based on their dominance type by conducting numerical simulations and analyzing the proportions of strain energy stored in stretching and bending. Three different dominance behaviors are identified: completely stretching or bending dominated, and varying dominance. The elementary pattern shape plays a crucial role in determining the mechanical behavior of these structures.
SCRIPTA MATERIALIA
(2022)
Article
Astronomy & Astrophysics
A. Di Pietro, A. C. Shotter, J. P. Fernandez-Garcia, P. Figuera, M. Fisichella, A. M. Moroc, M. Alcorta, M. J. G. Borge, T. Davinson, F. Ferrera, A. M. Laird, M. Lattuada, N. Soic, O. Tengblad, D. Torresi, M. Zadro
Summary: This paper presents the measurement results of elastic scattering excitation functions for the Li-9+He-4 reaction in the center-of-mass energy range, aiming to investigate the possible existence of molecular resonances in neutron-rich B-isotopes. The experiment utilized inverse kinematics on a gaseous He-4 target due to the short lifetime of 9Li. Broad resonances were observed in the excitation region of B-13. The orbiting reaction scenario is the most promising approach to interpret the data.
Article
Engineering, Mechanical
Yingli Li, Xuening Wang, Gengwang Yan
Summary: This paper investigates the bandgap mechanism and characteristics of two complex periodic lattices for vibration attenuation, analyzing the role of spring and mass elements in ensuring the existence of the bandgap. Analytical expressions for critical values of mass, stiffness, and configuration angle of the lattice are obtained, and the effects of parameters on bandgap width are studied. The proposed Models 1 and 2 have bandgaps 64.8% and 75.9% wider than the classical Model T.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2021)
Article
Multidisciplinary Sciences
Chenhan Liu, Chao Wu, Xian Yi Tan, Yi Tao, Yin Zhang, Deyu Li, Juekuan Yang, Qingyu Yan, Yunfei Chen
Summary: Doping oxygen atoms in two-dimensional TiS3 nanoribbons can significantly enhance the lattice thermal conductivity. The localized lattice contraction and coupling strength enhancement lead to the suppression of phonon-impurity scattering, improving the phonon thermal transport.
NATURE COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Shengtao Wang, Hao Pan, Xi Wang, Jianwei Yin, Xiaomian Hu, Wei Xu, Pei Wang
Summary: The study reveals that heterogeneity features such as defects on the mesoscale play important roles in the quasi-elastic response of shocked metals, leading to combined deformation states in the re-compression. Molecular dynamics simulations show different shear stress state and asynchrony mechanical response of the different local sites in the re-shock compression of metals.
RESULTS IN PHYSICS
(2021)
Article
Chemistry, Applied
Yoshinobu Hirata, Hiroshi Nakagawa, Hiroki Yamauchi, Koji Kaneko, Masato Hagihala, Hideyuki Yamaguchi, Chie Ohmoto, Nakako Katsuno, Teppei Imaizumi, Takahisa Nishizu
Summary: Starch retrogradation was evaluated using X-ray diffraction and its effect on the mechanical properties of starch was studied in this research. The molecular dynamics of cooked rice starch during retrogradation were investigated using quasi-elastic neutron scattering. The results showed that retrogradation suppressed the molecular dynamics and was correlated with the crystallinity of the starch.
FOOD HYDROCOLLOIDS
(2023)
Article
Physics, Nuclear
A. Grassi, J. Golak, W. N. Polyzou, R. Skibinski, H. Witala, H. Kamada
Summary: We have developed a relativistic model that allows for calculations of cross sections and polarization observables in electron and neutrino scattering experiments with deuteron targets. The dynamics of strong interactions are described by a unitary representation of the Poincare group, with the same representations for space translations and rotations in both interacting and noninteracting states. Our model uses the Argonne V18 potential to reproduce experimental observables for deuteron binding energy and nucleon-nucleon scattering. It is applicable to processes where the internal energy of two nucleons is below the threshold for pion production, but the momentum transfer extends to several GeV.
Article
Engineering, Aerospace
Mahmudul Hasan, Pinar Acar
Summary: This study proposes a multiscale and stochastic design approach for polycrystalline microstructures in order to achieve isotropic elastic properties and enhance predictability of aerospace component performance. The microstructures are modeled using Orientation Distribution Function (ODF), and design problems for titanium, aluminum, and galfenol are solved. The results show that the optimum microstructure designs can provide equivalent stiffness and Young's modulus values in different directions, and certain microstructure designs can offer quasi-isotropic elastic properties. Stochastic analysis using Gaussian process regression is also performed, revealing that 10% uncertainty in the ODFs can cause variations in Young's modulus for the materials, but the effects on anisotropy ratio are negligible.
Article
Mechanics
A. F. Fedotov
Summary: A quasi-numerical model has been developed based on a numerical model and the Mori-Tanaki analytical model for predicting the elastic moduli of matrix composites. In this model, the results of the analytical model are fitted to the results of the numerical model, using a fitting parameter that represents the ratio of constrained strain between the two models. The elastic moduli of composites with arbitrary composition are calculated using the fast analytical model after determining the properties of the base composition and the fitting parameter using the slow numerical model. Good agreement with reference values was achieved.
COMPOSITE STRUCTURES
(2023)
Article
Automation & Control Systems
Shengda Zeng, Stanislaw Migorski, Akhtar A. Khan
Summary: The paper investigates a generalized nonlinear quasi-hemivariational inequality involving a multivalued map in a Banach space. It proves that the set of solutions for the associated hemivariational inequality is nonempty, bounded, closed, and convex under general assumptions, and establishes the existence of a solution to the QHI. Additionally, it introduces an optimal control problem governed by QVI and establishes a solvability result for it.
SIAM JOURNAL ON CONTROL AND OPTIMIZATION
(2021)
