18 research outputs found
Finite Cut Approximation for the Form Factor
Assuming the length of the cut to be finite and approximating the
integrated amplitude by a constant, we derive an expression for the form factor which is very close to that given by a simple pole. The
specific predictions of the obtained form factor for the region of small
momentum transfer are discussed along the lines of the Goldberger-Treiman
relation.Comment: 17 pages, Late