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相关论文: Accurate nuclear masses from a three parameter Koh…

200 篇论文

We compute the mass radius, scalar radius, tensor radius, baryon number radius and mechanical radius of nuclei with baryon number $B=1,2,3,4,5,6,7,8,32,108$ in the Skyrme model. The relations between these radii and the nuclear…

高能物理 - 唯象学 · 物理学 2024-04-24 Alberto García Martín-Caro , Miguel Huidobro , Yoshitaka Hatta

Using the Reduced Basis approach, we efficiently compress and accurately represent the space of waveforms for non-precessing binary black hole inspirals, which constitutes a four dimensional parameter space (two masses, two spin…

广义相对论与量子宇宙学 · 物理学 2013-05-30 Frank Herrmann , Scott E. Field , Chad R. Galley , Evan Ochsner , Manuel Tiglio

We further progress along the line of Ref. [Phys. Rev. {\bf A 94}, 043614 (2016)] where a functional for Fermi systems with anomalously large $s$-wave scattering length $a_s$ was proposed that has no free parameters. The functional is…

核理论 · 物理学 2017-05-24 Denis Lacroix , Antoine Boulet , Marcella Grasso , C. -J. Yang

In developing theories of nuclear binding energy such as density-functional theory, the effort required to make a fit can be daunting due to the large number of parameters that may be in the theory and the large number of nuclei in the mass…

核理论 · 物理学 2009-11-10 G. F. Bertsch , B. Sabbey , M. Uusnakki

Spectroscopic properties of odd-mass nuclei are studied within the framework of the interacting boson-fermion model (IBFM) with parameters based on the Hartree-Fock-Bogoliubov (HFB) approximation. The parametrization D1M of the Gogny energy…

核理论 · 物理学 2017-07-25 K. Nomura , R. Rodríguez-Guzmán , L. M. Robledo

Based on the current measurement of the neutron distribution radius ($R_n$) of $^{208}$Pb through the PREX-2 data, we re-visited the recently developed G3 and IOPB-I force parameter by fine-tuning some of the specific couplings within the…

核理论 · 物理学 2022-11-11 Jeet Amrit Pattnaik , R. N. Panda , M. Bhuyan , S. K. Patra

We report the first observation of two narrow resonances consistent with states of orbitally excited (L=1) B_s mesons using 1 fb^{-1} of ppbar collisions at sqrt{s} = 1.96 TeV collected with the CDF II detector at the Fermilab Tevatron. We…

高能物理 - 实验 · 物理学 2010-05-12 CDF Collaboration , T. Aaltonen

We show that using complex, spin-restricted orbitals (cR) in Kohn-Sham density functional theory (KS-DFT) allows one to access a new class of densities that is not accessible by either spin-restricted (RKS) or spin-unrestricted (UKS)…

化学物理 · 物理学 2019-09-13 Joonho Lee , Luke W. Bertels , Martin Head-Gordon

We introduce a statistical measure of the effective model complexity, called the Bayesian complexity. We demonstrate that the Bayesian complexity can be used to assess how many effective parameters a set of data can support and that it is a…

天体物理学 · 物理学 2007-07-23 Martin Kunz , Roberto Trotta , David Parkinson

A phenomenological alpha-cluster model based on np-pair interactions and the charge symmetry of nuclear force allows one to estimate the Coulomb energy, the Coulomb radius R_C, the Coulomb energy of the last proton interaction with the…

核理论 · 物理学 2018-06-26 G. K. Nie

Recent data from the WMAP, ACT and SPT experiments provide precise measurements of the cosmic microwave background temperature power spectrum over a wide range of angular scales. The combination of these observations is well fit by the…

We have developed a fully coupled-channel complex scaling method (ccCSM) for the study of the most essential kaonic nucleus, $``K^-pp,"$ which is a resonant state of a $\bar{K}NN$-$\pi\Sigma N$-$\pi\Lambda N$ coupled-channel system based on…

核理论 · 物理学 2017-06-21 Akinobu Doté , Takashi Inoue , Takayuki Myo

We review our recent achievements in the construction of microscopic mass tables based on the Hartree-Fock-Bogoliubov method with Skyrme effective interactions. In the latest of our series of HFB-mass models, we have obtained our best fit…

核理论 · 物理学 2010-01-15 S. Goriely , N. Chamel , J. M. Pearson

We report results of ab initio calculation of the spin-rotational Hamiltonian parameters including P- and P,T-odd terms for the BaF molecule. The ground state wave function of BaF molecule is found with the help of the Relativistic…

原子物理 · 物理学 2009-10-30 M. Kozlov , A. Titov , N. Mosyagin , P. Souchko

In the framework of a mass formula proposed previously (transforming in a specific way three free parameters into three masses), a simple empirical sum rule for three charged-lepton masses is found, predicting m_\tau = 1776.9926 MeV, when…

高能物理 - 唯象学 · 物理学 2007-05-23 Wojciech Krolikowski

The up and down quark masses are determined from an optimized QCD Finite Energy Sum Rule (FESR) involving the correlator of axial-vector divergences, to five loop order in Perturbative QCD (PQCD), and including leading non-perturbative QCD…

高能物理 - 唯象学 · 物理学 2009-01-21 C. A. Dominguez , N. F. Nasrallah , R. H. Röntsch , K. Schilcher

The covariant density functional theory with the point-coupling interaction PC-PK1 is compared with new and accurate experimental masses in the element range from 50 to 91. The experimental data are from a mass measurement performed with…

核理论 · 物理学 2013-01-01 P. W. Zhao , L. S. Song , B. Sun , H. Geissel , J. Meng

Representative members of the subatomic particle mass spectrum in the 100 MeV to 7,000 MeV range are retrodicted to a first approximation using the Kerr solution of General Relativity. The particle masses appear to form a restricted set of…

综合物理 · 物理学 2010-09-22 R. L. Oldershaw

Inspired by the recent observations of $B$ and $B_s$ meson states at LHCb\cite{Aaij:2020hcw} we calculate the masses of ground, orbitally, and radially excited states. Also, we estimate the mixing parameters, decay constant, leptonic decay…

高能物理 - 唯象学 · 物理学 2022-01-06 Vikas Patel , Raghav Chaturvedi , A. K. Rai

The mass parameter of orbitally excited $\Lambda_c$ baryons is calculated by using QCD sum rule in the framework of heavy quark effective theory. Two kinds of interpolating current for the excited heavy baryons are introduced. It is…

高能物理 - 唯象学 · 物理学 2009-10-31 Jong-Phil Lee , Chun Liu , H. S. Song