中文
相关论文

相关论文: Spectroscopic factors for alpha decay in the $N_pN…

200 篇论文

The prediction of nuclear half-lives is vital for understanding nuclear stability with significant applications in astrophysics, nuclear energy, and medical physics. This study investigates the $\alpha$-decay half-lives of 154 actinide…

核理论 · 物理学 2026-03-18 N. Sowmya , H. C. Manjunatha , Roshini. K. N , R. S. Susheela

The history and importance of superdeformation in nuclei is briefly discussed. A simple two-level model is then employed to obtain an elegant expression for the branching ratio for the decay via the E1 process in the normal-deformed band of…

核理论 · 物理学 2009-11-11 B. R. Barrett , D. M. Cardamone , C. A. Stafford

A nonstandard method for calculating the nuclear $2\nu\beta\beta$ - decay amplitude is proposed. The method is based on the explicit use of those approximate symmetries of a nuclear hamiltonian, which correspond to the operators of allowed…

核理论 · 物理学 2007-05-23 O. A. Rumyantsev , M. H. Urin

We present a systematics of fission barriers and fission lifetimes for the whole landscape of super-heavy elements (SHE), i.e. nuclei with Z>100. The fission lifetimes are also compared with the alpha-decay half-lives. The survey is based…

核理论 · 物理学 2015-06-03 J. Erler , K. Langanke , H. P. Loens , G. Martínez-Pinedo , P. -G. Reinhard

The set of parameters for alpha-nucleus potential is derived by using the data for both the alpha-decay half-lives and the fusion cross-sections around the barrier for reactions alpha+40Ca, alpha+59Co, alpha+208Pb. The alpha-decay…

核理论 · 物理学 2009-11-11 V. Yu. Denisov , H. Ikezoe

Nuclear matrix elements (NMEs) for two-neutrino double-beta decay ($2\nu\beta\beta$) are studied in the framework of relativistic nuclear energy density functional (REDF). The properties of nuclei involved in the decay are obtained using…

核理论 · 物理学 2022-07-13 N. Popara , A. Ravlić , N. Paar

For r-process nucleosynthesis the beta decay rates of very neutron-rich nuclei are important ingredients. We consider the region around the neutron number N=82 and calculate the half-lives and rates for a number of nuclei. Forms for beta…

天体物理学 · 物理学 2008-12-01 Kamales Kar , Soumya Chakravarti

The competition between alpha- and beta+/EC-decay modes is studied systematically in nuclei along the alpha-decay chains following the synthesis of superheavy nuclei with Z = 119 and Z = 120. A microscopic approach based on deformed…

核理论 · 物理学 2022-01-20 Pedro Sarriguren

We have calculated astrophysical reaction cross-sections for $(\gamma,\alpha)$ reactions of some nuclei important for the calculation of $p$-process reaction-decay network. Reaction rates for $\alpha$-induced reactions are calculated with…

核理论 · 物理学 2019-08-05 Chirashree Lahiri

Frequency shifts, radiative decay rates, the Ohmic loss contribution to the nonradiative decay rates, fluorescence yields, and photobleaching of a two-level atom radiating anywhere inside or outside a complex spherical nanoshell, i.e. a…

量子物理 · 物理学 2007-05-23 Alexander Moroz

A search for $\alpha$ decay of naturally occurring osmium isotopes to the lowest excited levels of daughter nuclei has been performed by using an ultra-low-background Broad-Energy Germanium $\gamma$-detector with a volume of 112 cm$^3$ and…

We study the alpha-decay half-lives of 84 <= Z <= 92 even-even nuclei in the semiclassical WKB approximation framework using the density-dependent cluster model and the density distribution described by various Korea-IBS-Daegu-SKKU (KIDS)…

核理论 · 物理学 2024-10-15 Yong-Beom Choi , Hana Gil , Chang Ho Hyun , Chang-Hwan Lee

We build and train the artificial neural network model (ANN) based on the experimental $\alpha$-decay energy ($Q_{\alpha}$) data. Besides decays between the ground states of parent and daughter nuclei, decays from the ground state of parent…

核理论 · 物理学 2022-04-12 Hong-Qiang You , Zheng-Zhe Qu , Ren-Hang Wu , Hao-Ze Su , Xiao-Tao He

The universal curve is one of the simple ways to get preliminary information about the Alpha-decay half-life times of heavy nuclei. We try to find parameterization for the universal curve of Alpha decay based on semi-microscopic…

核理论 · 物理学 2015-07-24 M. Ismail , W. M. Seif , A. Y. Ellithi , A. Abdurrahman

The electron would decay into a photon and neutrino if the law of electric charge conservation is not respected. Such a decay would cause vacancy in closed shells of atoms giving rise to emission of x-rays and Auger electrons. Experimental…

高能物理 - 理论 · 物理学 2007-05-23 T. Pradhan

One of the prominent decay modes of heavy nuclei which are produced in astrophysical environments at temperatures of the order of $10^9$ K is the $\alpha$ ($^4$He) decay. Thermally enhanced $\alpha$ decay rates are evaluated within the…

核理论 · 物理学 2022-12-09 J. E. Perez Velasquez , O. L. Caballero , N. G. Kelkar

The feasibility for the alpha decay and the heavy particle decay from the even-even superheavy (SH) nuclei with Z = 116-124 have been studied within the Coulomb and proximity potential model (CPPM). The Universal formula for cluster decay…

核理论 · 物理学 2015-06-17 K. P. Santhosh , B. Priyanka

An intense study of the alpha decay properties of the isotopes of superheavy element Z=113 have been performed within the Coulomb and proximity potential model for deformed nuclei (CPPMDN) within the wide range 255 l.e. A l.e. 314. The…

核理论 · 物理学 2016-05-04 K. P. Santhosh , A. Augustine , C. Nithya , B. Priyanka

In the present work we calculate the allowed $\beta^-$-decay half-lives of nuclei with $Z = 20 -30$ and N $\leq$ 50 systematically under the framework of the nuclear shell model. A recent study shows that some nuclei in this region belong…

核理论 · 物理学 2016-09-20 Vikas Kumar , P. C. Srivastava , Hantao Li

The $\mathcal{\alpha}$ decay half-life of unknown nucleus $^{297}$Og is predicted within two-potential approach, and $\mathcal{\alpha}$ preformation probabilities of 64 odd-$A$ nuclei in the region of proton numbers $82<Z<126$ and neutron…

核理论 · 物理学 2019-05-02 Jun-Gang Deng , Jun-Hao Cheng , Bo Zheng , Xiao-Hua Li