Calculate Degree of Forbiddenness: Step-by-Step Example Included

  • Context: Undergrad 
  • Thread starter Thread starter shizzle
  • Start date Start date
  • Tags Tags
    Degree
Click For Summary
SUMMARY

The discussion focuses on calculating the degree of forbiddenness in nuclear physics, specifically addressing the concept of forbiddance as an absolute state. Jim clarifies that forbiddenness is categorized into different levels, such as "first forbidden" and "second forbidden," based on the extent to which selection rules are violated. For instance, a transition with a selection rule of delta L=1 is considered first forbidden if it involves delta L=2 or 0, while a third forbidden transition corresponds to delta L=3.

PREREQUISITES
  • Understanding of nuclear physics concepts, particularly selection rules.
  • Familiarity with the terminology of forbidden transitions in quantum mechanics.
  • Knowledge of angular momentum and its role in nuclear transitions.
  • Basic grasp of the significance of delta L in quantum state transitions.
NEXT STEPS
  • Research the implications of selection rules in quantum mechanics.
  • Study the differences between first, second, and third forbidden transitions in nuclear reactions.
  • Explore examples of forbidden transitions in nuclear decay processes.
  • Learn about the mathematical formulations used to calculate degrees of forbiddenness.
USEFUL FOR

Nuclear physicists, quantum mechanics students, and researchers interested in the behavior of forbidden transitions in nuclear reactions.

shizzle
Messages
21
Reaction score
0
How do we calculate degree of forbiddenness? Can someone do an example to show me?
 
Physics news on Phys.org
Forbiddenness, or rather forbiddance is the state of being forbidden and does not come in degrees - it is an "absolute" like "only". Cheers, Jim
 
Used in nuclear physics "first forbidden", "second forbidden".etc. refers to by how much a selection rule is broken. Usually if the selection rule is delta L=1, then first forbidden means a transition where delta L=2 or 0, and third is where delta L=3.
 

Similar threads

Undergrad How can you model charge?
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Forbidden decays and conservation laws
  • · Replies 10 ·
Replies
10
Views
3K
Graduate Reduced matrix element for 0_ --> 0+ forbidden beta decay
  • · Replies 1 ·
Replies
1
Views
1K
Undergrad Are certain combinations of quantum numbers (basis vectors) forbidden?
  • · Replies 1 ·
Replies
1
Views
1K
Undergrad Energy reduction/deflection of beta particles due to isotope geometry
  • · Replies 2 ·
Replies
2
Views
2K
Graduate How to calculate Feynman amplitude in Fish diagram
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Could anyone give me a step by step guide to using VASP for DFT calculations?
  • · Replies 3 ·
Replies
3
Views
1K
Engineering Calculating the Degrees of Freedom
  • · Replies 0 ·
Replies
0
Views
453
Programs What Do People Think Of Competency Based Degrees Such as Texas A&M Commerce
  • · Replies 4 ·
Replies
4
Views
3K
Undergrad Is there a limit to the possible masses of particles in the universe?
  • · Replies 1 ·
Replies
1
Views
2K