Speaker
Description
We present an efficient algorithm for constructing all the covariant tensor currents of massless particles of arbitrary spins in the covariant formulation. This algorithm enables us to construct all the matrix elements as well as covariant three-point vertices simply by assembling the basic building blocks,
leading to the direct construction of tensor currents. We revisit the restrictions on massless particles called the Weinberg-Witten (WW) theorem in terms of arbitrary spins. We find the covariance conditions on form factors leading to the corresponding tensor currents to be covariant and verify that the continuity assumption of matrix elements taken for obtaining the WW theorem in the original paper is correct at least in the quantum field theory involving conventional high-spin massless fields.
