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相关论文: Microscopic calculations of 6He and 6Li with real-…

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We present a microscopic calculation of the 6He beta-decay into the ground state of 6Li. To this end we use the impulse approximation to describe the nuclear weak current. The ground state wave functions are obtained from the solution of…

核理论 · 物理学 2009-01-20 Doron Gazit , Sergey Vaintraub , Nir Barnea

The radiative capture cross sections for the 3He(alpha,gamma)7Be and 3H(alpha,gamma)7Li reactions are calculated in the fully microscopic fermionic molecular dynamics approach using a realistic effective interaction that reproduces the…

核理论 · 物理学 2011-02-02 Thomas Neff

We derive expressions for cluster overlap integrals or channel cluster form factors for ab initio no-core shell model (NCSM) wave functions. These are used to obtain the spectroscopic factors and can serve as a starting point for the…

核理论 · 物理学 2009-11-10 Petr Navratil

The energies of $^{3}H$, $^{3}He$, and $^{4}He$ ground states, the ${\frac{3}{2}}^{-}$ and ${\frac{1}{2}}^{-}$ scattering states of $^{5}He$, the ground states of $^{6}He$, $^{6}Li$, and $^{6}Be$ and the $3^{+}$ and $0^{+}$ excited states…

核理论 · 物理学 2016-09-08 B. S. Pudliner , V. R. Pandharipande , J. Carlson , R. B. Wiringa

We have computed the cross section for the process d + alpha -> 6Li + gamma at the low energies relevant for primordial nucleosynthesis and comparison with laboratory data. The final state is a six-body wave function generated by the…

核理论 · 物理学 2009-09-25 K. M. Nollett , R. B. Wiringa , R. Schiavilla

We extensively develop a method of implementing mean-field calculations for deformed nuclei, using the Gaussian expansion method (GEM). This GEM algorithm has the following advantages: (i) it can efficiently describe the energy-dependent…

核理论 · 物理学 2008-11-26 H. Nakada

The structure of neutron-rich $\Lambda$ hypernucleus, $^7_{\Lambda}$He is studied within the framework of an $\alpha +\Lambda +n+n$ four-body cluster model. We predict second $3/2^+$ and $5/2^+$ states, corresponding to a $0s$ $\Lambda$…

核理论 · 物理学 2015-06-11 E. Hiyama , M. Isaka , M. Kamimura , T. Myo , T. Motoba

We carry out generalized-ensemble molecular dynamics simulations of the formation of small Helium (He) clusters in bulk Tungsten (W), a process of practical relevance for fusion energy production. We calculate formation free energies of…

材料科学 · 物理学 2015-03-06 Thomas Vogel , Danny Perez

The generator coordinate method (GCM) casts the wavefunction as an integral over a weighted set of non-orthogonal single determinantal states. In principle this representation can be used like the configuration interaction (CI) or shell…

核理论 · 物理学 2015-06-23 Jason L. Stuber

We study the one-neutron removal strength of the 7He ground state, which provides us with the 6He-n component in 7He. The He isotopes are described on the basis of the 4He+Xn cluster model (X=1,2,3). The complex scaling method is applied to…

核理论 · 物理学 2009-08-20 Takayuki Myo , Ryosuke Ando , Kiyoshi Kato

Seismic observations by the space-borne mission \emph{Kepler} have shown that the core of red giant stars slows down while evolving, requiring an efficient physical mechanism to extract angular momentum from the inner layers. Current…

太阳与恒星天体物理 · 物理学 2015-06-24 K. Belkacem , J. P. Marques , M. J. Goupil , T. Sonoi , R. M. Ouazzani , M. A. Dupret , S. Mathis , B. Mosser , M. Grosjean

We propose a new architecture for the measurement-based quantum computation model. The new design relies on small composite light-atom primary clusters. These are then assembled into cluster arrays using ancillary light modes and the actual…

量子物理 · 物理学 2015-06-04 Darran F. Milne , Natalia V. Korolkova

Good many-body methods for medium and heavy nuclei are important. Here we combine ideas from standard generator-coordinate methods (GCM) and the so-called Monte Carlo shell model, and set forth a novel approach: starting from a mean-field…

核理论 · 物理学 2019-10-02 Changfeng Jiao , Calvin W. Johnson

Time-dependent equation-of-motion coupled cluster (TD-EOM-CC) is used to simulate impulsive stimulated x-ray Raman scattering (ISXRS) of ultrashort laser pulses by neon, carbon monoxide, pyrrole, and p-aminophenol. The TD-EOM-CC equations…

化学物理 · 物理学 2023-10-10 Alice Balbi , Andreas S. Skeidsvoll , Henrik Koch

The alpha clustering in the 10Be and 12Be has been studied within the framework of the real-time evolution method (REM). By using the effective interaction tuned to reproduce the charge radii and the threshold energies, we have evaluated…

核理论 · 物理学 2022-11-18 Qing Zhao , Masaaki Kimura , Bo Zhou , Seung-heon Shin

Radio Environment Maps (REMs) have the potential to serve as an important enabler for intelligent modeling and control in emerging AI-native 6G networks. Despite significant progress, most REM construction methods remain passive, relying on…

信号处理 · 电气工程与系统科学 2026-05-26 Jernej Hribar , Ljupcho Milosheski , Ryoichi Shinkuma

We present ab-initio calculations of the binding energy and radii of the two-neutron halo nucleus 6He using two-body low-momentum interactions based on chiral effective field theory potentials. Calculations are performed via a…

核理论 · 物理学 2015-06-04 S. Bacca , N. Barnea , A. Schwenk

A jet algorithm based on the k-means clustering procedure is proposed which can be used for the invariant-mass reconstruction of heavy states decaying to hadronic jets. The proposed algorithm was tested by reconstructing E+ E- to ttbar to 6…

高能物理 - 唯象学 · 物理学 2009-01-07 S. Chekanov

We report a leading-order calculation of radiative ${}^{7}\mathrm{Li}$ neutron captures to both the ground and first excited state of ${}^{8}\mathrm{Li}$ in the framework of a low-energy effective field theory (Halo-EFT). Each of the…

核理论 · 物理学 2014-03-05 Xilin Zhang , Kenneth M. Nollett , D. R. Phillips

We present a neural-network emulator for the thermal and chemical evolution in Population III star formation. The emulator accurately reproduces the thermochemical evolution over a wide density range spanning 21 orders of magnitude…

星系天体物理 · 物理学 2026-05-18 Sojun Ono , Kazuyuki Sugimura