Register to reply

Conservation of angular momentum in nuclear physics

by burgjeff
Tags: angular, conservation, decay, momentum, nuclear
Share this thread:
burgjeff
#1
Mar18-14, 06:00 PM
P: 4
Say a uranium-238 nucleus with angular momentum II decays to thorium-234 plus an alpha particle. Will the sum of the angular momenta of the thorium-234 nucleus and the alpha particle equal II? What if a photon was emitted during this process, would Ithorium+Iα+hbar=II?

thanks
Phys.Org News Partner Physics news on Phys.org
Refocusing research into high-temperature superconductors
Neutron tomography technique reveals phase fractions of crystalline materials in 3-dimensions
Tiny magnets, huge fields: Nanoscale ferromagnetic electrodes create chemical equivalent of solid-state spin valve
mfb
#2
Mar18-14, 06:24 PM
Mentor
P: 11,631
The relative motion of the nuclei can carry angular momentum, so the result can be different.
dauto
#3
Mar19-14, 10:33 AM
Thanks
P: 1,948
To clarify mfb's point, orbital angular momentum must be included when applying angular momentum conservation. But yes, angular momentum is definitely always conserved.


Register to reply

Related Discussions
Angular momentum and conservation of angular momentum problem Introductory Physics Homework 0
Peter Ponders Ping Pong Physics (conservation of angular momentum ) General Physics 10
Linear momentum conservation vs angular momentum conservation Classical Physics 2
Finding angular velocity using conservation of angular momentum Introductory Physics Homework 2
Law of the Conservation of Angular Momentum > Principle of Conservation of Momentum General Engineering 0