Article
Physics, Nuclear
K. Raya, Z. -f. Cui, L. Chang, J. M. Morgado, C. D. Roberts, J. Rodriguez-Quintero
Summary: Observable measures provide clear windows into emergent hadron mass and its modulations by Higgs boson interactions, which can be accessed through generalised parton distributions (GPDs). Analysis reveals various properties and predictions, such as stiffness differences between gravitational and electromagnetic form factors, tightness of K pressure profiles compared to pi profiles, and similar fraction of meson mass-squared carried by glue and sea combined as with the valence degrees-of-freedom.
Article
Physics, Nuclear
Qi Xin, Zhi-Gang Wang
Summary: In this study, we investigated the properties of scalar, axialvector, and tensor doubly-charmed tetraquarks without strange, with strange, and with doubly-strange using QCD sum rules. We also provided a possible assignment for the T-cc(+) particle based on the molecular states scenario. The predictions suggest that the lighter DD* molecular state with specific spin-parity and isospin characteristics is the T-cc(+), while the heavier DD* molecular state remains undetected.
EUROPEAN PHYSICAL JOURNAL A
(2022)
Article
Physics, Nuclear
Jiangyong Jia, Shengli Huang, Chunjian Zhang
Summary: Hydrodynamic flow in heavy ion collisions can be used as a precision tool to directly image the deformation of atomic nuclei and provide valuable information.
Review
Physics, Nuclear
M. Sajjad Athar, Steven W. Barwick, Thomas Brunner, Jun Cao, Mikhail Danilov, Kunio Inoue, Takaaki Kajita, Marek Kowalski, Manfred Lindner, Kenneth R. Long, Nathalie Palanque-Delabrouille, Werner Rodejohann, Heidi Schellman, Kate Scholberg, Seon-Hee Seo, Nigel J. T. Smith, Walter Winter, Geralyn P. Zeller, Renata Zukanovich Funchal
Summary: This article provides a detailed discussion of the unique role of neutrinos in physics, including their sources, oscillations, masses, interactions, possible existence of sterile neutrinos, and theoretical implications. It also highlights the synergies between neutrino physics and other research fields, as well as the importance of technological developments and adequate infrastructures for the future of successful neutrino physics.
PROGRESS IN PARTICLE AND NUCLEAR PHYSICS
(2022)
Article
Physics, Nuclear
X. H. Wu, Z. X. Ren, P. W. Zhao
Summary: Machine learning is used to build an energy density functional for self-bound nuclear systems, resulting in a robust and accurate orbital-free density functional for nuclei. By bypassing the Kohn-Sham equations, this method provides high accuracy in calculating ground-state densities, total energies, and root-mean-square radii, surpassing existing theories in nuclear research.
Article
Astronomy & Astrophysics
Vinod Kumar, Ram Mehar Singh, S. B. Bhardwaj, Richa Rani, Fakir Chand
Summary: By solving the non-relativistic Schrodinger equation using the Nikiforov-Uvarov functional analysis method along with Greene-Aldrich approximation, analytical expressions of energy eigenvalues and eigen functions for a generalized Cornell potential were obtained. The energy spectra of three physically important potentials and the energy eigenvalue spectra of diatomic molecules were derived. Additionally, the mass spectra of two heavy mesons were investigated using the Coulomb perturbed potential. The study also extended to calculate thermodynamic quantities for heavy mesons.
MODERN PHYSICS LETTERS A
(2022)
Article
Astronomy & Astrophysics
Francesco Alessio, Paolo Di Vecchia
Summary: This study computes the leading soft term of the 5-point amplitude involving a graviton and two Kerr black holes. It determines the infrared divergent contribution to the imaginary part of the two-loop eikonal and the radiative contribution to its real part. The results provide insights into deflection angles, angular momentum loss, and energy spectrum for different spin orientations.
Article
Physics, Nuclear
Subikash Choudhury, Xin Dong, Jim Drachenberg, James Dunlop, ShinIchi Esumi, Yicheng Feng, Evan Finch, Yu Hu, Jiangyong Jia, Jerome Lauret, Wei Li, Jinfeng Liao, Yufu Lin, Mike Lisa, Takafumi Niida, Robert Lanny Ray, Masha Sergeeva, Diyu Shen, Shuzhe Shi, Paul Sorensen, Aihong Tang, Prithwish Tribedy, Gene Van Buren, Sergei Voloshin, Fuqiang Wang, Gang Wang, Haojie Xu, Zhiwan Xu, Nanxi Yao, Jie Zhao
Summary: This study aims to verify the sensitivity of different experimental methods to the CME signal and background contributions, as well as the equivalence of their core components, through Monte Carlo simulations and a realistic event generator.
Article
Physics, Nuclear
G. A. Contrera, D. Blaschke, J. P. Carlomagno, A. G. Grunfeld, S. Liebing
Summary: We propose a family of equations of state (EOS) for hybrid neutron star matter that incorporates first-order phase transition and color superconductivity, taking into account the effects of confinement.
Article
Nuclear Science & Technology
Zuo-Yi Zhang, Yu-Jie Dong, Qi Shi, Fu Li, Hai-Tao Wang
Summary: The HTR-PM600 high-temperature gas-cooled reactor nuclear power plant is a nuclear power plant based on the technology of the high-temperature gas-cooled reactor pebble-bed module demonstration project. It utilizes six parallel reactor modules and a steam turbine to form a 600 MWe nuclear power plant. It provides the same level of inherent safety as the HTR-PM and has a similar system configuration, but with a larger containment to accommodate more modules.
NUCLEAR SCIENCE AND TECHNIQUES
(2022)
Article
Astronomy & Astrophysics
Ya Lu, Lei Chang, Khepani Raya, Craig D. Roberts, Jose Rodriguez-Quintero
Summary: This study uses consistent determination of valence distribution functions (DFs) for proton and pion at the same hadron scale, and presents a unified prediction for all DFs including valence, glue, and four-flavour-separated sea. The results show that while identifiable parton classes carry the same hadron light-front momentum fractions for both proton and pion at any scale, the behavior of DFs is strongly dependent on the hadron.
Article
Physics, Nuclear
J. Papavassiliou
Summary: This article presents a comprehensive review of the key concepts associated with the Schwinger mechanism in QCD, highlighting the synergy between functional methods and lattice simulations and showcasing recent advances.
Article
Physics, Nuclear
Asli M. Abdullahi, Pablo Barham Alzas, Brian Batell, James Beacham, Alexey Boyarsky, Saneli Carbajal, Animesh Chatterjee, Jose Crespo-Anadon, Frank F. Deppisch, Albert De Roeck, Marco Drewes, Alberto Martin Gago, Rebeca Gonzalez Suarez, Evgueni Goudzovski, Athanasios Hatzikoutelis, Josu Hernandez-Garcia, Matheus Hostert, Marco Hufnagel, Philip Ilten, Alexander Izmaylov, Kevin J. Kelly, Juraj Klaric, Joachim Kopp, Suchita Kulkarni, Mathieu Lamoureux, Gaia Lanfranchi, Jacobo Lopez-Pavon, Oleksii Mikulenko, Michael Mooney, Miha Nemevsek, Maksym Ovchynnikov, Silvia Pascoli, Ryan Plestid, Mohamed Rashad Darwish, Federico Leo Redi, Oleg Ruchayskiy, Richard Ruiz, Mikhail Shaposhnikov, Lesya Shchutska, Ian M. Shoemaker, Robert Shrock, Alex Sousa, Nick Van Remortel, Vsevolod Syvolap, Volodymyr Takhistov, Jean-Loup Tastet, Inar Timiryasov, Aaron C. Vincent, Jaehoon Yu
Summary: The existence of nonzero neutrino masses suggests the presence of multiple Standard Model neutral fermions known as heavy neutral leptons (HNLs). This white paper discusses the current experimental status of HNLs, including colliders, beta decay, accelerators, as well as astrophysical and cosmological impacts. It highlights the importance of further searching for HNLs and its potential impact on fundamental questions, as well as outlining future prospects for next-generation experiments or upcoming accelerator run scenarios.
JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
(2023)
Article
Astronomy & Astrophysics
Chang Gong, Meng-Chuan Du, Qiang Zhao, Xian-Hui Zhong, Bin Zhou
Summary: We find that Pomeron exchanges play a crucial role in vector charmonium scatterings and can provide an explanation for the unique structures observed by the LHCb Collaboration. The presence of a narrow structure X(6900), formed by the exchange of Pomerons and coupled-channel effects, is predicted near the di-J/psi threshold. Furthermore, we predict that X(6900) will result in significant threshold enhancement in the J/psi-psi(2S) energy spectrum, which can be detected at LHCb.
Review
Physics, Nuclear
J. M. Yao, J. Meng, Y. F. Niu, P. Ring
Summary: Nuclear weak decays provide important insights into fundamental symmetries in nature, and accurately describing these processes requires comprehensive understanding of strong and weak interactions in the nuclear medium and quantum many-body dynamics. Observing the hypothetical double beta decay without neutrino emission would demonstrate the Majorana nature of neutrinos and the violation of lepton number. It would also offer valuable information about the order and scale of neutrino masses.
PROGRESS IN PARTICLE AND NUCLEAR PHYSICS
(2022)
Article
Physics, Nuclear
Jian-Qin Ma, Zhen-Hua Zhang
Summary: The kernel ridge regression method with a Gaussian kernel is used to improve the description of nuclear charge radius. Several phenomenological formulae, including their improved versions, are adopted as examples and their parameters are refitted using the Levenberg-Marquardt method. The KRR method shows good predictive and extrapolation ability in predicting the radius of nuclei.
Article
Physics, Nuclear
Hana Gil, Panagiota Papakonstantinou, Chang Ho Hyun
Summary: In this paper, the density dependence of the nuclear symmetry energy is investigated in the framework of KIDS for the nuclear equation of state and energy-density functional. The aim is to constrain the value of the curvature parameter based on recent astronomical data. The results suggest that the symmetry energy has an inflection point within a certain density range.
INTERNATIONAL JOURNAL OF MODERN PHYSICS E
(2022)
Review
Physics, Nuclear
K. Hagino, K. Ogata, A. M. Moro
Summary: In this paper, the authors review the applications and recent developments of the coupled-channels approach in nuclear reactions. The coupled-channels approach can describe the dynamic excitations of atomic nuclei, which have effects on various reaction processes such as inelastic scattering, elastic scattering, and fusion. It has become a standard tool for analyzing experimental data in nuclear reactions.
PROGRESS IN PARTICLE AND NUCLEAR PHYSICS
(2022)
Article
Physics, Nuclear
Z. -F. Cui, M. Ding, J. M. Morgado, K. Raya, D. Binosi, L. Chang, J. Papavassiliou, C. D. Roberts, J. Rodriguez-Quintero, S. M. Schmidt
Summary: The analysis of the pion valence-quark distribution function predicts that its behavior at x approximately equal to 1 follows the model of (1 - x)(β(σ)), taking into account the pion wave function prescribed by QCD. However, the empirical status of this behavior remains uncertain due to disagreements in fitting existing data. Further experimental data is needed to reach a final conclusion.
EUROPEAN PHYSICAL JOURNAL A
(2022)
Article
Physics, Nuclear
Z. M. Niu, H. Z. Liang
Summary: In this study, nuclear masses are predicted using Bayesian neural networks, achieving a high level of accuracy through the incorporation of known physics and careful design of neural networks. The corresponding uncertainties of mass predictions are properly evaluated, and several important features in the unknown region are predicted.
