Electron capture in fully ionised nuclei

Garlic
Gold Member
Messages
181
Reaction score
72
Hello everyone,
What happens if an isotope that normally decays through EC has no electrons at all? For example how does 7Be4+ decay?
 
Physics news on Phys.org
If beta+ decay is not possible and there are no electrons around, the isotope becomes stable.
 
  • Like
Likes Garlic
Positron emission is energetically blocked for Be-7, so it becomes stable.

Most heavier nuclei will have the positron emission channel open up.
 

Thread 'Toponium Discovered'

Toponium is a hadron which is the bound state of a valance top quark and a valance antitop quark. Oversimplified presentations often state that top quarks don't form hadrons, because they decay to bottom quarks extremely rapidly after they are created, leaving no time to form a hadron. And, the vast majority of the time, this is true. But, the lifetime of a top quark is only an average lifetime. Sometimes it decays faster and sometimes it decays slower. In the highly improbable case that...
View full post »

Thread 'Dirac-Delta from Normalization of Continuous Eigenfunctions'

I'm following this paper by Kitaev on SL(2,R) representations and I'm having a problem in the normalization of the continuous eigenfunctions (eqs. (67)-(70)), which satisfy \langle f_s | f_{s'} \rangle = \int_{0}^{1} \frac{2}{(1-u)^2} f_s(u)^* f_{s'}(u) \, du. \tag{67} The singular contribution of the integral arises at the endpoint u=1 of the integral, and in the limit u \to 1, the function f_s(u) takes on the form f_s(u) \approx a_s (1-u)^{1/2 + i s} + a_s^* (1-u)^{1/2 - i s}. \tag{70}...
View full post »

Similar threads

B Beta Plus Decay: What's Left for the Electron?
Replies
8
Views
2K
A Electron capture in a molecule
Replies
12
Views
2K
I Does K-40 Capture Electrons With Orbital Angular Momentum?
Replies
3
Views
2K
I Neutrino-Nucleus Interactions and Half-Life Constraints
Replies
5
Views
2K
I Can 41Ca Decay to 40K through Proton Removal in Certain Situations?
Replies
14
Views
2K
Electron capture and heavy nuclei
Replies
2
Views
2K
I Nucleus energy levels, neutron energy
Replies
15
Views
3K
B What happens during electron capture physically?
Replies
14
Views
4K
I How can the e- escape by overcome the suck force in β- decay
Replies
4
Views
1K
I Half life and radioactivity clarification
Replies
20
Views
2K

Hot Threads

Recent Insights

Back
Top