G factor Definition and 13 Threads

German Wikipedia mentions that the g factor is one of the causes of the Lamb Shift. It does not say why and I am trying to find a connection between these two things. Any ideas?

I'm reading peskin QFT textbook. In page 196 eq. (6.58) it says $$F_2(q^2=0)=\frac{\alpha}{2\pi}\int ^1_0 dx dy dz \delta (x+y+z-1) \frac{2m^2z(1-z)}{m^2(1-z)^2}\\=\frac{\alpha}{\pi}\int ^1_0 dz\int ^{1-z}_0 dy \frac{z}{1-z}=\frac{\alpha}{2\pi}$$ I confirmed the conversion from the first line...

I'm reading the book Quantum Field Theory and the Standard Model by Matthew Schwartz and currently I'm studying the chapter 17 titled "The anomalous magnetic moment" which is devoted to computing the corrections due to QFT to the g factor. My main issue is in the beginning of the chapter, where...

https://link.springer.com/chapter/10.1007/978-3-540-39664-2_1 http://iopscience.iop.org/article/10.1088/0031-8949/1988/T22/016/pdf In these two experiments done back in the 80's, electrons were trapped inside a penning trap for long periods of time. They were measuring the ratio of the magnetic...

I was just going through the calculation to go from the top line to the bottom and was just not arriving at the same result. Working backwards and just looking at the first term (i.e. the one with coefficient ##g_L## I get): ## \frac {J^2 + J + L^2 + L - S^2 - S}{2(J^2 + J)} = \frac {L^2 + S^2...

Hi, last week I read Rabi's paper "The Molcular Beam Resonance Method". This paper contains the basic idea of the oscillation which we call "Rabi Oscillation" as many of you guys know. However, at the end of this paper, Rabi calculates nuclear magnetic moments of Li (atomic mass 6), Li (atomic...

Hi, last week I read Rabi's paper "The Molcular Beam Resonance Method". This paper contains the basic idea of the oscillation which we call "Rabi Oscillation" as many of you guys know. However, at the end of this paper, Rabi calculates nuclear magnetic moments of Li (atomic mass 6), Li (atomic...

revision already calculated J to be 15/2 have already found g to be 1.33 M = ngμJ magnetic suseptibilty is 5X10^-7 m^3/mol please could omeone tell me if it is possible to calculate the magnetic susceptibility from the above information? thanks in advance for an pointers.

Homework Statement A source which emits a line at 500 nm is found to exhibit the normal Zeeman effect when placed in a magnetic field. Calculate the magnetic field given that the separation of adjacent components in the Zeeman pattern is 12.0 pm. Homework Equations E=hc/lambda...

to all i need to know the theoretically where the g factor came from? g=9.8

Homework Statement I was looking the calculation of Landé g factor. It starts with \mu=-\frac{e}{2m_{e}} (\vec{L}+2\vec{S}) assuming that g of electron =2 The lecture notes then proceed by calculating g=1+\frac{J(J+1)+S(S+1)-L(L+1)}{2J(J+1)} using the cosine rule.Homework Equations the...

In quantum mechanics, magnetic moment is equal to g factor times (gyromagnetic ratio x angular momentum). For orbital angular momentum, g=1, for electron spin angular momentum, g=2, for proton, it is 3.56. Is there any physical significance for this factor? why scientist introduce this factor...

So what is this G factor thing with IQ and stuff?