On the relationship between the deuteron form factors and the physical S matrix. I

Conclusions The present paper has been devoted primarily to kinematics. In the next paper the results we have obtained will be used for a realistic calculation of the form factors of the bound state of the n-p system-the deuteron.Two results are of independent interest. First, the inequality of the initial, , and final, , masses of the n-p system and the parametrization (28) result in the appearance of the transition form factor f₂₁ (–), which, generally speaking, makes a contribution to the matrix element pn|j|pn and also to the electrosplitting of the deuteron [15]. Secondly, we have found an admixture of the magnetic form factors of the proton and neutron in the charge form factor of the n-p system. This admixture will also be retained in the charge form factor of the deuteron. This mixing is due to the relativistic spin rotation and may be important in the solution of the problem that is the inverse of that we have been considering-the determination of information about the electromagnetic form factors of the neutron from the known form factors of the deuteron and proton. Since the experimental charge form factor of the neutron is small in magnitude, the calculated value of G_Ep is very sensitive to theoretical and experimental corrections (see, for example, [16]).M. V. Lomonosov Moscow State University. V. A. Steklov Mathematics Institute, Academy of Sciences of the USSR. Translated from Teoreticheskaya i Matematicheskaya Fizika, Vol. 10, No. 1, pp. 45–57, January, 1972.