Titlebook: Symposia on Theoretical Physics; 2 Lectures presented Alladi Ramakrishnan (Director of the Institute) Book 1966 Plenum Press 1966 Potential

Galactogogue

Effective-Range Approximation Based on Regge Poles,entum plane provides a very good description of low-energy scattering of, for example, the . system. We shall see in what follows how singularities in the complex angular momentum plane can also be used for the same purpose.

Bronchial-Tubes

Origin of Internal Symmetries,ric relations between “inertial” systems for which the laws of physics are the same, and the .. We call the symmetry “internal” because we see only its manifestations; there is no primitive geometric characterization of the symmetry group from any fundamental dynamic principle. We shall try to see t

abnegate

Construction of the Invariants of the Simple Lie Groups,th which we are familiar. For this group, the infinitesimal generators ., i = 1, 2, 3, satisfy the commutation relations . and there exists a polynomial in the ., namely, . which has the property that it commutes with . of the infinitesimal generators:

幼稚

显而易见

Crossing Relations and Spin States,n incoming (outgoing) particle of momentum . by an outgoing (incoming) antiparticle of momentum — .. It is the sign of the time component that decides whether a line represents an incoming particle or an outgoing antiparticle.