- #1
maverick280857
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Hi,
Can someone please explain the following statement on page 62 of Weinberg's Vol 1 on QFT:
(I understand the part for P ~ mv, so the "quote" is slightly distorted, intentionally).
Also how is
Thanks in advance!
Can someone please explain the following statement on page 62 of Weinberg's Vol 1 on QFT:
For a system of particles of typical mass m and typical velocity v, the (..) angular momentum operator is expected to be of order J ~ 1
(I understand the part for P ~ mv, so the "quote" is slightly distorted, intentionally).
Also how is
?K of order 1/v
Thanks in advance!