The representation of Fermi particles by two-component Pauli spinors satisfying a second
order differential equation and the suggestion that in β decay these spinors act without …

A bstract We introduce on-shell variables for Heavy Particle Effective Theories (HPETs) with
the goal of extending Heavy Black Hole Effective Theory to higher spins and of facilitating its …

We calculate the glueball spectrum for spin up to J= J= 4 and positive charge parity in pure
Yang–Mills theory. We construct the full bases for J= J= 0, 1, 2, 3, 4 and discuss the relation …

The decay of a particle with spin to two other particles with spin is best described in the
helicity formalism. It is the purpose of this paper to show that the helicity-coupling …

Recent experiments on strange particles have given some support for the possibility that
elementary particles of spin higher than 1 may exist. In particular the observed angular …

This updated version has been produced by Ms Fern Simes/BNL. I am very much indebted
for her patience and her extraordinary skill in converting the orginal text into a LATEX file. I …

Conformal higher spin (HS) gravity is a HS extension of Weyl gravity and is a family of local
HS theories, which was put forward by Segal and Tseytlin. We propose a manifestly …

It is shown that the decay amplitude of a particle with spin to one spinless meson and a
resonance with spin can be expressed in a general and compact form using the covariant …

A recently observed spectrum of P c states exhibits a strong link to Σ c D¯(*) thresholds. In
spite of successful molecular interpretations, we still push forward to wonder whether there …

Recently, the interacting N= 1 superconformal higher-spin theory in four dimensions has
been proposed within the induced action approach. In this paper we initiate a program of …