Change search
ReferencesLink to record
Permanent link

Direct link
Microscopic mechanism of charged-particle radioactivity and generalization of the Geiger-Nuttall law
KTH, School of Engineering Sciences (SCI), Physics, Nuclear Physics.ORCID iD: 0000-0002-1406-5695
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
KTH, School of Engineering Sciences (SCI), Physics, Nuclear Physics.
Show others and affiliations
2009 (English)In: Physical Review C. Nuclear Physics, ISSN 0556-2813, E-ISSN 1089-490X, Vol. 80, no 4, 044326- p.Article in journal (Refereed) Published
Abstract [en]

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 upon the Q values of the outgoing clusters as well as the masses and charges of the nuclei involved in the decay. This relation explains well all known cluster decays. It is found to be a generalization of the Geiger-Nuttall law in a radioactivity, and therefore we call it the universal decay law. Predictions of the most likely emissions of various clusters are presented by applying the law over the whole nuclear chart. It is seen that the decays of heavier clusters with nonequal proton and neutron numbers are mostly located in the trans-lead region. The emissions of clusters with equal protons and neutrons, like C-12 and O-16, are possible in some neutron-deficient nuclei with Z >= 54.

Place, publisher, year, edition, pages
2009. Vol. 80, no 4, 044326- p.
Keyword [en]
decay half-lives, cluster-radioactivity, alpha-decay, heavy-nuclei, spontaneous fission, exotic decays, emission, ba-114, systematics, proton
National Category
Physical Sciences
URN: urn:nbn:se:kth:diva-18922DOI: 10.1103/PhysRevC.80.044326ISI: 000271352900039ScopusID: 2-s2.0-70449455906OAI: diva2:336969
QC 20100525Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2011-01-19Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus

Search in DiVA

By author/editor
Qi, ChongLiotta, Roberto J.Wyss, Ramon
By organisation
Nuclear PhysicsParticle and Astroparticle Physics
In the same journal
Physical Review C. Nuclear Physics
Physical Sciences

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 45 hits
ReferencesLink to record
Permanent link

Direct link