Zeeman effect pattern, Intensities?

[neu]

Im dong the zeeman effect for Mercury trasitions 3S1 --> 3P0/1/2 (Violet, Blue and Green lines).

I've taken CCD pictures of all lines in a weak B field and with polaroid placed parallel and perpendicularly, and produced graphs of pixel value v column number (intensity v horizontal position).

I cannot work out how to interpret the intensities. I've got the relative ratios from my data but they don't seem to be correct (well i don't know).

And i can't explain why the Blue pattern is missing it's central peak, ie there should be 7 transitions for 3S1 -->3P1 but graph only shows 6

http://www.breadnet.middlebury.edu/~PHManual/Photos/zeeman/fig4.gif

(From breadnet.middlebury.edu) a) is Blue pattern b) Green

Can somebody point me on the right path?

 

[OlderDan]

Im dong the zeeman effect for Mercury trasitions 3S1 --> 3P0/1/2 (Violet, Blue and Green lines).

. . . .

And i can't explain why the Blue pattern is missing it's central peak, ie there should be 7 transitions for 3S1 -->3P1 but graph only shows 6

What would those 7 be; from which levels in 3S1 to which levels in 3P1?

 

[neu]

What would those 7 be; from which levels in 3S1 to which levels in 3P1?

J=1 in both shells so mj = -J,0,+J = -1,0,+1

Transitions,

mj= 1 -> mj = 1 Delta mj=0
mj= 0 -> mj = 0 Delta mj=0 <--This one is missing why?
mj=-1 -> mj =-1 Delta mj=0
mj= 1 -> mj =0 Delta mj=-1
mj= 0 -> mj =-1 Delta mj=-1
mj= 0 -> mj =1 Delta mj=1
mj=-1 -> mj =0 Delta mj=1

Thanks

 

[OlderDan]

J=1 in both shells so mj = -J,0,+J = -1,0,+1

Transitions,

mj= 1 -> mj = 1 Delta mj=0
mj= 0 -> mj = 0 Delta mj=0 <--This one is missing why?
mj=-1 -> mj =-1 Delta mj=0
mj= 1 -> mj =0 Delta mj=-1
mj= 0 -> mj =-1 Delta mj=-1
mj= 0 -> mj =1 Delta mj=1
mj=-1 -> mj =0 Delta mj=1

Thanks

It is forbidden. See the very last paragraph of

http://hyperphysics.phy-astr.gsu.edu/hbase/quantum/hydazi.html