BUBBLE CHAMBER ANALYSIS

In your lab book (in pen, of course):		On the bubble sheet paper (in pencil):

1) derivation of  r = r(h, L)				1) measurements of h, L; calculation of r

2) derivation of    pc  =   (      Gev/cm)  r 		2) measurement of angles

	i.e., all E’s and pc’s are in Gev;		3) calculation of pc, E
	       all r’s are in cm

3) determination of whether the “-“ is		4) conservation laws (pc components, E, & ???)
	a  K  or  a   

all three of the above must be approved
and initialed by me

some other helpful points:

1) assume all particles have |q|  =  |qelectron|

2) measure all distances and angles as accurately as possible; angles should have three 
    significant figures

3) the  and  particles are pions; you should be able to tell what the Q and Z particles are,
     but if you can’t, I will be happy to tell you (or to confirm your guesses).

4) do not attempt to measure the curvature of the -   ; everything else can be measured
     accurately

5) you should be able to work from the end of the collision/decay processes backwards towards 
    the middle and also from the initial collision forward.

6) your grade will be based not only on accuracy, proper identification of X, Y, (and Z, Q, and 
     ), convincingness of identifications, but also, neatness and organization, and other 
     expectations on orchide lab sheets.