Article
Astronomy & Astrophysics
Yizhuang Liu, Maciej A. Nowak, Ismail Zahed
Summary: In this study, the researchers revisit the three nonstrange pentaquarks predicted using holographic dual description, showing that in the heavy quark limit, the pentaquarks with internal heavy quark spin are all degenerate. The holographic pentaquarks are dual to an instanton bound to heavy mesons in bulk, without the shortcomings related to the nature of the interaction and the choice of the hard core inherent to the molecular constructions. Additionally, the study explicitly derived spin-spin and spin-orbit couplings arising from next to leading order in heavy quark mass to lift the internal spin degeneracy.
Article
Physics, Nuclear
Lin Qiu, Qiang Zhao
Summary: The observation of the light hybrid candidate eta(1)(1855) by the BESIII Collaboration provides an important opportunity to advance our knowledge on exotic hadrons in terms of flavor sector. The study of its production and decay mechanisms can establish a crucial clue for the J(P(C)) = 1(-(+)) hybrid nonet.
Article
Physics, Nuclear
Yuuka Kanakubo, Yasuki Tachibana, Tetsufumi Hirano
Summary: This study analyzed Pb + Pb collisions at 2.76 TeV using a novel framework, indicating significant impact from potential nonequilibrium components on experimental results. These findings strongly suggest the necessity of considering nonequilibrium components when extracting properties of quark-gluon plasma from experimental data.
Article
Physics, Particles & Fields
Jun Song, Hai-hong Li, Feng-lan Shao
Summary: The study utilizes a quark combination model to analyze the elliptic flow of hadrons in heavy-ion collisions, revealing a common quark-level source for the v(2) of different hadrons. By obtaining quark v(2) from experimental data and predicting the v(2) of charm quark baryons, the study provides insights into the contributions of different quark flavors to the v(2) of hadrons.
EUROPEAN PHYSICAL JOURNAL C
(2021)
Article
Astronomy & Astrophysics
K. Ray, D. Harnett, T. G. Steele
Summary: In this study, we calculated the NLO QCD perturbative contributions to the JPC 1/4 0thorn-, du u tetraquark correlator in the chiral limit of massless u and d quarks. We used diagrammatic renormalization and pySecDec to numerically compute dimensionally regularized integrals. We found that NLO perturbation theory has a significant impact compared to LO perturbation theory, and we determined upper and lower bounds on the 0thorn-, du u tetraquark ground-state mass using QCD sum rules.
Article
Physics, Multidisciplinary
Peter Szabo, Szabolcs Goger, Jorge Charry, Mohammad Reza Karimpour, Dmitry Fedorov, Alexandre Tkatchenko
Summary: Polarizability is an important response property of physical and chemical systems, affecting intermolecular interactions, spectroscopic observables, and vacuum polarization. This study presents a universal four-dimensional scaling law to describe polarizability, applicable to both single-particle and many-particle quantum systems.
PHYSICAL REVIEW LETTERS
(2022)
Article
Astronomy & Astrophysics
Yasuhiro Yamaguchi, Shigehiro Yasui, Atsushi Hosaka
Summary: This paper discusses the interaction between a nucleon and an open heavy meson by considering the exchange potentials of g, a, p, and w. A potential model is constructed based on chiral symmetry for light quarks and spin symmetry for heavy quarks. The parameters of the model are adjusted to reproduce low-energy NN scatterings. The results show that the interaction can accommodate over bar DN and BN bound states with specific quantum numbers. The g exchange potential plays a significant role in the isosinglet channel, while the a exchange potential is important for the isotriplet one.
Article
Geosciences, Multidisciplinary
Shouyi Wang, Caroline C. Ummenhofer, Delia W. Oppo, Sujata A. Murty, Patrick Wagner, Claus W. Boening, Arne Biastoch
Summary: The Makassar Strait plays a crucial role in the Indo-Pacific climate through its redistribution of heat and freshwater. Short-term observations indicate that wind-driven advection of freshwater from marginal seas affects the surface transport of the strait. However, longer-term observations are needed to fully understand the decadal variability.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Multidisciplinary Sciences
Luciano Maiani, Antonio Davide Polosa, Veronica Riquer
Summary: This study examines the charmonium-like exotic states Y(4230) and Y(4320) produced in e(+)e(-) collisions, focusing on their radiative and pion decay channels. The results show that decay rates depend on the fifth power of pion momentum, leading to a strong suppression of pi Zc(4020) relative to pi Zc(3900), and suggest the possible contribution of Y(4320) to pi Zc(4020) events based on BES III data.
Article
Astronomy & Astrophysics
Qing Yu, Hua Zhou, Jiang Yan, Xu-Dong Huang, Xing-Gang Wu
Summary: The paper reanalyzes the electroweak rho parameter by using the principle of maximum conformality (PMC) and achieves a more precise pQCD prediction. By suppressing residual scale dependences, the magnitudes of uncertainties of the W-boson mass and effective leptonic weak-mixing angle are predicted to be well below the precision anticipated for future electron-position colliders such as FCC, CEPC, and ILC.
Article
Physics, Particles & Fields
A. R. Olamaei, K. Azizi
Summary: Recently, the LHCb Collaboration performed the first search for a rare radiative decay and obtained an upper limit. The measurement agrees well with existing theory prediction but shows slight tension with previous predictions. Inspired by this, we investigated other radiative decays and made predictions using light-cone QCD sum rules. Our results are consistent with previous predictions and can be verified experimentally.
EUROPEAN PHYSICAL JOURNAL C
(2022)
Article
Materials Science, Multidisciplinary
Karim Achouri, Olivier J. F. Martin
Summary: The study presents a self-consistent extension of the Lorentz reciprocity theorem and the Poynting theorem for media with electric and magnetic dipolar and quadrupolar responses. By using these theorems, conditions of reciprocity, gainlessness, and losslessness for the interactions of multipole moments and fields are deduced, which can potentially advance metamaterial modeling techniques incorporating quadrupolar and spatially dispersive responses.
Article
Physics, Multidisciplinary
T. Yanagisawa, H. Matsumori, H. Saito, H. Hidaka, H. Amitsuka, S. Nakamura, S. Awaji, D. Gorbunov, S. Zherlitsyn, J. Wosnitza, K. Uhlirova, M. Valiska, V Sechovsky
Summary: The study presents acoustic signatures of electric quadrupolar degrees of freedom in UNi4B, showing softening of the C-66 ultrasonic mode below 30 K and anisotropic elastic response within the honeycomb layer. Magnetic field-temperature phase diagrams suggest the role of electric quadrupolar degrees of freedom in magnetic toroidal dipole order and magnetic-field-induced phases.
PHYSICAL REVIEW LETTERS
(2021)
Article
Physics, Nuclear
Yuheng Wu, Xin Jin, Hongxia Huang, Jialun Ping, Xinmei Zhu
Summary: In the framework of the quark delocalization color screening model, the interaction between mesons in a four-quark system with u, d, and s flavors was investigated. The results showed that the interaction between two vector mesons is generally attractive, while the interaction between a pseudoscalar meson and a vector meson is repulsive or weakly attractive. The interaction between two pseudoscalar mesons is always repulsive, except for some exceptions. The study emphasized the importance of one-gluon exchange and kinetic energy interaction in the meson-meson interaction. The variation of the delocalization parameter indicated the role of kinetic energy in the intermediate-range attraction mechanism in the quark delocalization color screening model (QDCSM).
Article
Geosciences, Multidisciplinary
Anne Barnoud, Julia Pfeffer, Adrien Guerou, Marie-Laure Frery, Mathilde Simeon, Anny Cazenave, Jianli Chen, William Llovel, Virginie Thierry, Jean-Francois Legeais, Michael Ablain
Summary: Studies have shown that the global mean sea level (GMSL) budget was closed within uncertainties from 1993-2016, but non-closure was observed after 2016 with data from Jason-3, Argo, and GRACE/GRACE Follow-On. Errors in data sets used for estimating GMSL and its components may have contributed to this non-closure.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Astronomy & Astrophysics
Yi-Bo Yang, Ying Chen, Andrei Alexandru, Shao-Jing Dong, Terrence Draper, Ming Gong, Frank X. Lee, Anyi Li, Keh-Fei Liu, Zhaofeng Liu, Michael Lujan
Article
Computer Science, Interdisciplinary Applications
Lai Wang, Frank X. Lee
COMPUTER PHYSICS COMMUNICATIONS
(2011)
Article
Physics, Nuclear
Janardan P. Singh, Frank X. Lee, Lai Wang
INTERNATIONAL JOURNAL OF MODERN PHYSICS A
(2011)
Article
Computer Science, Interdisciplinary Applications
A. Alexandru, C. Pelissier, B. Gamari, F. X. Lee
JOURNAL OF COMPUTATIONAL PHYSICS
(2012)
Article
Astronomy & Astrophysics
J. M. M. Hall, F. X. Lee, D. B. Leinweber, K. F. Liu, N. Mathur, R. D. Young, J. B. Zhang
Article
Astronomy & Astrophysics
Frank X. Lee, Lai Wang
Article
Astronomy & Astrophysics
M. Lujan, A. Alexandru, Y. Chen, T. Draper, W. Freeman, M. Gong, F. X. Lee, A. Li, K. F. Liu, N. Mathur
Article
Astronomy & Astrophysics
M. Lujan, A. Alexandru, W. Freeman, F. X. Lee
Article
Astronomy & Astrophysics
Frank X. Lee, Andrei Alexandru, Chris Culver, Walter Wilcox
Summary: Polarizabilities provide valuable information about the internal structure of hadrons in terms of charge and current distributions. This study explores an alternative method based on four-point functions in lattice QCD to isolate the polarization energy in charged hadrons. The simulation on the electric polarizability of a charged pion shows a cancellation between elastic and inelastic contributions, raising interesting questions for future simulations at smaller pion masses.
Article
Astronomy & Astrophysics
Frank X. Lee, Andrei Alexandru, Ruairi Brett
Summary: This article focuses on precise calculations of scattering phase shifts and resonance parameters in the two-body sector of lattice QCD. The study derives higher-order quantization conditions and introduces a method for transparently cross-checking the results, which is essential given the involved derivations of these formulas.
Article
Astronomy & Astrophysics
Walter Wilcox, Frank X. Lee
Summary: This paper demonstrates how to calculate the electromagnetic polarizabilities of charged hadrons using four-point functions in lattice QCD. Formulas for electric and magnetic polarizabilities are derived for charged pions and protons, and the construction and assessment of lattice four-point correlation functions for Monte Carlo simulations are discussed. While connected quark-line diagrams are feasible for small lattice projects, disconnected diagrams require more resources but are achievable for medium to large projects. The potential of four-point functions as a multipurpose tool for hadron structure is also highlighted.
Article
Astronomy & Astrophysics
Frank X. Lee, Andrei Alexandru
Article
Astronomy & Astrophysics
M. Lujan, A. Alexandru, W. Freeman, F. X. Lee
Proceedings Paper
Physics, Applied
Andrei Alexandru, Michael Lujan, Walter Freeman, Frank Lee
XITH CONFERENCE ON QUARK CONFINEMENT AND HADRON SPECTRUM
(2016)
