English
Related papers

Related papers: Alpha-decay half-lives, alpha-capture and alpha-nu…

200 papers

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…

Nuclear Theory · Physics 2007-05-23 O. A. Rumyantsev , M. H. Urin

The current status of the experimental searches for rare alpha and beta decays is reviewed. Several interesting observations of alpha and beta decays, previously unseen due to their large half-lives ($10^{15} - 10^{20}$ yr), have been…

Nuclear Experiment · Physics 2019-09-02 P. Belli , R. Bernabei , F. A. Danevich , A. Incicchitti , V. I. Tretyak

We have constructed new proximity function particularly for interaction between two superheavy nuclei based on the experimental alpha decay half-lives. The new proximity function is used to produce the alpha decay half-lives of superheavy…

Nuclear Theory · Physics 2020-03-20 H. C. Manjunatha , K. N. Sridhar

$\alpha-$decay through a deformed potential barrier produces significant mixing of angular momenta when mapped from the nuclear interior to the outside. Using experimental branching ratios and either semi-classical or coupled-channels…

Nuclear Theory · Physics 2009-01-23 T. L. Stewart , M. W. Kermode , D. J. Beachey , N. Rowley , I. S. Grant , A. T. Kruppa

Recently, V.Yu. Denisov proposed a new empirical formula incorporating the deformation of the daughter nucleus, which has significantly improved the description of $\alpha$-decay half-lives for even-even nuclei compared to formulas…

Nuclear Theory · Physics 2026-04-10 Jinyu Hu , Chen Wu

A systematic study on the probability for the emission of 4^He and 14^C cluster from hyper ${207-234}^$Ac and non-strange normal ${207-234}^$Ac nuclei are performed for the first time using our fission model, the Coulomb and proximity…

Nuclear Theory · Physics 2013-11-12 K. P. Santhosh

In this study, the effects of repulsive nucleon-nucleon interactions arising from the Pauli exclusion principle were examined regarding the half-lives of heavy even-even nuclei with $84\leq Z\leq92$. The Pauli exclusion principle is applied…

Nuclear Theory · Physics 2022-05-26 M. M. Amiri , O. N. Ghodsi

The zero neutrino mode of the double beta decay in heavy deformed nuclei is investigated in the framework of the pseudo SU(3) model, which has provided an accurate description of collective nuclear structure and predicted half-lives for the…

Nuclear Theory · Physics 2009-10-28 Jorge G. Hirsch , O. Castaños , P. O. Hess

The pairing corrections, the single particle occupation numbers, are investigated within density-dependent delta interaction formalism for pairing residual interactions. The potential barrier is computed in the framework of the…

Nuclear Theory · Physics 2015-06-23 M. Mirea

The $\alpha$-decay half-lives of superheavy nuclei with $100 \leq Z \leq 120$ are comprehensively analyzed using the axially deformed relativistic mean field (RMF) formalism for the NL3$^*$ parameter set. We employ RMF binding energies to…

Nuclear Theory · Physics 2024-03-06 Nishu Jain , M. Bhuyan , Raj Kumar

In this paper we show that the proton-neutron residual interaction can play an important role in the reliability of calculated $\beta$-decay half-lives. It may also improve the prediction power of the quasiparticle random phase…

Nuclear Theory · Physics 2025-05-14 Jameel-Un Nabi , Mavra Ishfaq

The half-lives of newly observed $\alpha$-emitters $^{105}$Te and $^{109}$Xe [Seweryniak \textit{et al.}, Phys. Rev. C \textbf{73}, 061301(R) (2006); Liddick \textit{et al.}, Phys. Rev. Lett. \textbf{97}, 082501 (2006)] are investigated by…

Nuclear Theory · Physics 2009-11-11 Chang Xu , Zhongzhou Ren

A semi-classical model based on quantum time concepts is presented for the evaluation of bremsstrahlung emission probabilities in alpha decay of nuclei. The contribution to the bremsstrahlung emission from the different regions in tunneling…

Nuclear Theory · Physics 2014-01-10 N. G. Kelkar , M. Nowakowski

We systematically study the competition between {\alpha}-decay and spontaneous fission in even-even superheavy nuclei with (Z=120) and 256 \leq A \leq 304 within the preformed cluster-decay model using microscopic inputs from relativistic…

Nuclear Theory · Physics 2026-01-30 Nishu Jain , M. Bhuyan , P. Mohr , Raj Kumar

The de-excitation of alpha-conjugate nuclei produced in reactions of 35 MeV/nucleon 40Ca with 40Ca has been investigated. Particular emphasis is placed on examining the dynamics of collisions leading to projectile-like fragment exit…

The advent and intensive use of new detector technologies as well as radioactive ion beam facilities have opened up possibilities to investigate alpha, proton and cluster decays of highly unstable nuclei. This article provides a review of…

Nuclear Theory · Physics 2019-03-27 Chong Qi , Roberto Liotta , Ramon Wyss

The predictions on the mode of decay of the odd-even and odd-odd isotopes of heavy and superheavy nuclei with Z = 99-129, in the range 228 \leg A \leg 336, have been done within the Coulomb and proximity potential model for deformed nuclei…

Nuclear Theory · Physics 2015-06-24 K. P. Santhosh , B. Priyanka

The barriers standing against the formation of superheavy elements and their consecutive $\alpha$ decay have been determined in the quasimolecular shape path within a Generalized Liquid Drop Model including the proximity effects between…

Nuclear Theory · Physics 2015-06-26 G. Royer , K. Zbiri , C. Bonilla

Bound-state $\beta^-$-decay is a rare radioactive process where the created electron is trapped in an atomic orbital instead of being emitted. It can be observed in highly ionized atoms in particular when normal beta decay is energetically…

Nuclear Theory · Physics 2025-07-14 Priyanka Choudhary , Chong Qi

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