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Related papers: Systematics of proton emission

200 papers

Within the framework of potential scattering theory we derive an analytical two-potential formula for the on-shell partial wave scattering amplitude. This formula embodies a large number of possible applications, including long range…

Nuclear Theory · Physics 2009-08-26 M. Pavon Valderrama , E. Ruiz Arriola

Proton-rich nuclei possess unique properties in the nuclear chart. Due to the presence of both continuum coupling and Coulomb interaction, phenomena such as halos, Thomas-Ehrman shift, and proton emissions can occur. Experimental data are…

Nuclear Theory · Physics 2021-04-30 N. Michel , J. G. Li , F. R. Xu , W. Zuo

The proton radioactivity half-lives of spherical proton emitters are investigated theoretically. The potential barriers preventing the emission of protons are determined in the quasimolecular shape path within a generalized liquid drop…

Nuclear Theory · Physics 2009-08-12 J. M. Dong , H. F. Zhang , G. Royer

Although Geiger-Nuttall (GN) law gives a single straight line, if we consider the experimental data of alpha particle emitters including heavy and super heavy nuclei with proton numbers as large as 118, instead of getting a single linear…

Nuclear Theory · Physics 2016-12-14 Swagatika Bhoi , Basudeb Sahu

A model to study two-proton emission from nuclei induced by electromagnetic probes is developed. The process is due to one-body electromagnetic operators, acting together with short-range correlations, and two-body $\Delta$ currents. The…

Nuclear Theory · Physics 2007-05-23 Antonio M. Lallena , Marta Anguiano , Giampaolo Co'

One of characteristic phenomena for nuclei beyond the proton dripline is the simultaneous emission of two protons (2\emph{p}). The current status of our knowledge of this most recently observed and the least known decay mode is presented.…

Nuclear Experiment · Physics 2023-06-28 Marek Pfützner , Ivan Mukha , Simin Wang

The proton radioactivity lifetimes of spherical proton emitters from the ground and the isomeric states are calculated using the microscopic nucleon-nucleus interaction potentials. The daughter nuclei density distributions are folded with a…

Nuclear Theory · Physics 2007-05-23 P. Roy Chowdhury , C. Samanta , D. N. Basu

A linear relation for charged-particle emissions is presented starting from the microscopic mechanism of the radioactive decay. It relates the logarithms of the decay half-lives with two variables, called $\chi'$ and $\rho'$, which depend…

Nuclear Theory · Physics 2009-10-29 Chong Qi , Furong Xu , Roberto J. Liotta , Ramon A. Wyss , M. Y. Zhang , C. Asawatangtrakuldee , D. Hu

Coulomb energy differences between mirror nuclei with $A \le 70$ are calculated within the framework of the nuclear shell model using an effective Coulomb plus isovector and isotensor interaction. Absolute binding energies for proton-rich…

Nuclear Theory · Physics 2008-11-26 W. E. Ormand

We propose a semi-microscopic model for the simultaneous emission of two protons. This model has the advantage of avoiding certain technical aspects of a fully microscopic 3-body framework, while also allowing the investigation of the…

Nuclear Theory · Physics 2022-09-21 S. A. Ghinescu , D. S. Delion

We present first calculations of the fluctuating gluon distribution in a proton as a function of impact parameter and rapidity employing the functional Langevin form of the JIMWLK renormalization group equation. We demonstrate that when…

High Energy Physics - Phenomenology · Physics 2015-06-22 Soeren Schlichting , Bjoern Schenke

Half lives of the decays of spherical nuclei away from proton drip line by proton emissions are estimated theoretically. The quantum mechanical tunneling probability is calculated within the WKB approximation. Microscopic proton-nucleus…

Nuclear Theory · Physics 2007-05-23 D. N. Basu , P. Roy Chowdhury , C. Samanta

The Coulomb interaction between the protons is included in the description of proton-deuteron scattering using the screening and renormalization approach in the framework of momentum-space integral equations. Two new calculational schemes…

Nuclear Theory · Physics 2009-11-11 A. Deltuva , A. C. Fonseca , P. U. Sauer

The half-lives of proton radioactivity of proton emitters are investigated theoretically by using KDE0v1 Skyrme interaction. The total barrier potential in the proton radioactive nuclei is calculated as the sum of the nuclear, Coulomb and…

Nuclear Theory · Physics 2020-07-07 K. Madhuri , D. N. Basu , T. R. Routray , S. P. Pattnaik

Two instructive effects concerning fragment production at disintegration of finite nuclei are predicted with the statistical multifragmentation model: (1) a concentration of neutrons in intermediate mass fragments during the phase…

Nuclear Theory · Physics 2007-05-23 A. S. Botvina

The interaction potential between the alpha particle and the deformed parent nucleus was used for description of the decay of superheavy nuclei. It consists of centrifugal, nuclear and Coulomb parts suitably modified for deformed nuclei.…

Nuclear Theory · Physics 2007-05-23 M. Kowal , Z. Lojewski

Direct observation of proton emission for very small Q-values is often unfeasible due to the long partial half-lives of the proton emission channel associated with tunneling through the Coulomb barrier. Therefore, proton emitters with very…

Effect of deformation on half-life of two-proton (2p) radioactivity is investigated across the periodic chart for nuclei with Z$<$82. 2p-decay half-lives are estimated by employing our newly proposed semi-empirical formula wherein the…

Nuclear Theory · Physics 2022-12-07 G. Saxena , Mamta Aggarwal , D. Singh , A. Jain , P. K. Sharma , H. L. Yadav

Nuclear double $\beta$-decay with two neutrinos is a rare and important process for natural radioactivity of unstable nuclei. The experimental data of nuclear double $\beta^{-}$-decay with two neutrinos are analyzed and a systematic law to…

Nuclear Theory · Physics 2015-06-19 Yuejiao Ren , Zhongzhou Ren

It is demonstrated that an emission of collinear photons by the polarized initial electron in elastic electron-proton polarization transfer scattering leads to an apparent shifting of real events with small momentum transfer into the data…

High Energy Physics - Phenomenology · Physics 2007-05-23 S. Dubnička , E. Kuraev , M. Sečanský , A. Vinnikov