Idioma:

Old dualities and new anomalies

Bonezzi, Roberto ; Díaz-Jaramillo, Felipe ; Hohm, Olaf

Physical review. D, 2020-12, Vol.102 (12), p.126002-1, Article 126002 [Periódico revisado por pares]

Texto completo disponível

Citações Citado por

Título:
Old dualities and new anomalies
Autor: Bonezzi, Roberto ; Díaz-Jaramillo, Felipe ; Hohm, Olaf
Assuntos: Anomalies ; Bosons ; Invariants ; Symmetry
É parte de: Physical review. D, 2020-12, Vol.102 (12), p.126002-1, Article 126002
Descrição: We revisit the question whether the worldsheet theory of a string admits a global O (d,d) symmetry. We consider the truncation of the target space theory in which fields are independent of d coordinates, which is O(d,d,R) invariant. The worldsheet theory is not O(d,d,R) invariant, unless it is truncated by setting winding and center-of-mass momenta to zero. We prove consistency of this truncation and give a manifestly O(d,d,R) invariant action, generalizing a formulation due to Tseytlin by including all external and internal target space fields. It is shown that, due to chiral bosons, this symmetry is anomalous. The anomaly is cancelled by a Green-Schwarz mechanism that utilizes the external B -field.
Editor: College Park: American Physical Society
Idioma: Inglês

Voltar para lista de resultados