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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Remarks on a gauge theory for continuous spin particles

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Autor(es):
Rivelles, Victor O.
Número total de Autores: 1
Tipo de documento: Artigo Científico
Fonte: EUROPEAN PHYSICAL JOURNAL C; v. 77, n. 7 JUN 29 2017.
Citações Web of Science: 7
Resumo

We discuss in a systematic way the gauge theory for a continuous spin particle proposed by Schuster and Toro. We show that it is naturally formulated in a cotangent bundle over Minkowski spacetime where the gauge field depends on the spacetime coordinate chi(mu) and on a covector eta(mu). We discuss how fields can be expanded in eta(mu) in different ways and how these expansions are related to each other. The field equation has a derivative of a Dirac delta function with support on the eta-hyperboloid eta(2) + 1 = 0 and we show how it restricts the dynamics of the gauge field to the eta-hyperboloid and its first neighbourhood. We then show that on-shell the field carries one single irreducible unitary representation of the Poincare group for a continuous spin particle. We also show how the field can be used to build a set of covariant equations found by Wigner describing the wave function of one-particle states for a continuous spin particle. Finally we show that it is not possible to couple minimally a continuous spin particle to a background abelian gauge field, and we make some comments about the coupling to gravity. (AU)

Processo FAPESP: 14/18634-9 - Dualidade gravitação/Teoria de Gauge
Beneficiário:Victor de Oliveira Rivelles
Linha de fomento: Auxílio à Pesquisa - Temático
Processo FAPESP: 11/11973-4 - ICTP Instituto Sul-Americano para Pesquisa Fundamental: um centro regional para física teórica
Beneficiário:Nathan Jacob Berkovits
Linha de fomento: Auxílio à Pesquisa - Temático