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The formation of superheavy nuclei in $^{48}Ca+^{232}Th$, $^{238}U$, $^{242,244}Pu$ and $^{248}Cm$ reactions and their subsequent decay are studied within the quantum mechanical fragmentation theory (QMFT) and the QMFT based preformed…

Nuclear Theory · Physics 2011-11-09 Sushil Kumar , M. Balasubramaniam , Raj K. Gupta , G. Munzenberg , W. Scheid

A comprehensive study of favoured and unfavoured $\alpha$-decay, cluster decay, weak-decay along with spontaneous fission in undetected superheavy nuclei within the range for proton number 111$\leq$Z$\leq$118 and neutron number…

Nuclear Theory · Physics 2023-07-26 A. Jain , P. K. Sharma , S. K. Jain , Dashty T. Akrawy , G. Saxena

Alpha-decay half-lives for 104,105,106Te and 108,109,110Xe close above the doubly-magic 100Sn are calculated from systematic double-folding potentials. The derived alpha preformation factors are compared to results for 212,213,214Po and…

Nuclear Theory · Physics 2007-05-23 Peter Mohr

Magic islands for extra-stable nuclei in the midst of the sea of fission-instability were predicted to be around Z=114, 124 or, 126 with N=184, and Z=120, with N=172. Whether these fission-survived superheavy nuclei with high Z and N would…

Nuclear Theory · Physics 2009-07-20 C. Samanta

Nuclear pairing interaction plays a crucial role in both macroscopic-microscopic and fully macroscopic descriptions of nuclei. In the present study we discuss different pairing interactions (monopole and delta pairing forces) and the…

Nuclear Theory · Physics 2008-11-26 A. Baran , Z. Lojewski , K. Sieja

Various decay modes in superheavy nuclei have been of significant interest among which cluster radioactivity has recently gained sizable attention. The {\alpha}-decay being a predominant decay mode in the superheavy region, the accurate…

Nuclear Theory · Physics 2024-04-02 G. Saxena , Dashty T. Akrawy , Ali H. Ahmed , Mamta Aggarwal

Alpha and cluster decay half lives for W isotopes in the range between 2p drip line and beta stability line are studied. The sensitivity of different Skyrme parametrizations in predicting the alpha decay and probable cluster decay modes…

Nuclear Theory · Physics 2018-07-02 Nithu Ashok , Antony Joseph

The microscopic description of alpha decay from the nucleons' degree of freedom involves a two-step process. The first consists of the clusterization of neutron and proton pairs; the second involves the tunneling process. A robust protocol…

Nuclear Theory · Physics 2024-07-26 A. C. Dassie , R. M. Id Betan

Cluster decays of rare-earth nuclei are studied with a view to look for neutron magic shells for the $_{50}$Sn nucleus as the daughter product always. The $^{100}$Sn and $^{132}$Sn radioactivities are studied to find the most probable…

Nuclear Theory · Physics 2012-05-29 Sushil Kumar

We investigate the influence of the nuclear deformation on the decay rates of some cluster emission processes. The interaction between the daughter and the cluster is given by a double folding potential including quadrupole and hexadecupole…

Nuclear Theory · Physics 2007-05-23 S. Misicu , D. Protopopescu

A microscopic calculation of half-lives for the recently observed $^{108}$Xe $\to$ $^{104}$Te $\to$ $^{100}$Sn $\alpha$-decay chain is performed using a self-consistent framework based on energy density functionals. The relativistic density…

Nuclear Theory · Physics 2020-07-08 F. Mercier , J. Zhao , R. -D Lasseri , J. -P. Ebran , E. Khan , T. Niksic , D. Vretenar

A new $\alpha$-cluster wave function is proposed which is of the $\alpha$-particle condensate type. Applications to $^{12}$C and $^{16}$O show that states of low density close to the 3 resp. 4 $\alpha$-particle threshold in both nuclei are…

Nuclear Theory · Physics 2011-05-05 A. Tohsaki , H. Horiuchi , P. Schuck , G. Röpke

The nuclear $\alpha$ decay of heavy nuclei is investigated based on the nuclear energy density functional, which leads to the $\alpha$ potential inside the parent nucleus in terms of the proton and neutron density profiles of the daughter…

Nuclear Theory · Physics 2017-03-22 Yeunhwan Lim , Yongseok Oh

We employ, within the framework of Skyrme energy-density functional theory, the subtracted second random-phase approximation, recently developed for charge-exchange excitations, to compute $\beta$-decay half-lives in four nuclei, $^{24}$O,…

Nuclear Theory · Physics 2025-06-24 Danilo Gambacurta , Marcella Grasso

In the nucleus $^{48}$Ti, whose structure is essential in evaluating the half-life of the neutrinoless double-$\beta$ decay ($0\nu\beta\beta$) of $^{48}$Ca, the existence of the $\alpha$ cluster structure is shown for the first time. A…

Nuclear Theory · Physics 2021-11-22 S. Ohkubo

We investigate the degree of $\alpha$ ($^4$He nucleus) clustering in the ground-state density profiles of $^{44}$Ti and $^{52}$Ti. Two types of density distributions, shell- and cluster-model configurations, are generated fully…

Nuclear Theory · Physics 2022-11-09 W. Horiuchi , N. Itagaki

Nuclear symmetry energy is a fundamental quantity currently under intense investigation in both nuclear physics and astrophysics. The {\it softness} or {\it stiffness} of symmetry energy is still under debate and the extraction of symmetry…

Nuclear Theory · Physics 2023-08-11 Shuo Yang , Ruijia Li , Chang Xu

We select 300 different parent nuclei in the range Z from 64 to 106. The proximity potentials Zhang 2013 and Guo 2013 are employed to calculate the nuclear potential. The influence of the nuclear surface diffuseness is applied in the…

Nuclear Theory · Physics 2025-11-25 S. Mohammadi , R. Gharaei , S. A. Alavi

We propose a simple quartet condensation model (QCM) which describes with very high accuracy the isovector pairing correlations in self-conjugate nuclei. The quartets have an alpha-like structure and are formed by collective isovector…

Nuclear Theory · Physics 2015-06-04 N. Sandulescu , D. Negrea , J. Dukelsky , C. W. Johnson

In standard nucleation theory, the nucleation process is characterized by computing $\Delta\Omega(V)$, the reversible work required to form a cluster of volume $V$ of the stable phase inside the metastable mother phase. However, other…

Statistical Mechanics · Physics 2015-06-18 Santi Prestipino , Alessandro Laio , Erio Tosatti