Griffiths Introduction to Elementary Particles · Problem 8.14

Quantum Chromodynamics — David J. Griffiths

Physics — QFT · dirac-proton-scaling

Problem

Suppose the proton were a ``Dirac'' charge; would the structure functions scale? If so, what are

F_1(x)

and

F_2(x)

in this case? Is the Callan-Gross relation satisfied? [Answer:

F_1(x) = \frac{1}{2}\delta(x-1)

;

F_2(x) = \delta(x-1)

; yes.]