The four-dimensional Green-Schwarz anomaly cancellation mechanism with a surviving U(1) gauge group is described in the context of standard tensor calculus (superspace) techniques for local supersymmetry. This phenomenon is "dual" to the case in which a massless vector field is eaten up by an antisymmetric tensor which thereby describes a massive spin-one field. Both mechanisms are motivated by recent string-loop calculations. Unlike the case of some supergravity models, these mechanisms seem unable (order by order, at least) to break supersymmetry while keeping the cosmological constant vanishing.
Massive vector multiplets from superstrings / Cecotti, Sergio; Ferrara, S; Girardello, L.. - In: NUCLEAR PHYSICS. B. - ISSN 0550-3213. - 294:2(1987), pp. 537-555. [10.1016/0550-3213(87)90596-7]
Massive vector multiplets from superstrings
Cecotti, Sergio;
1987-01-01
Abstract
The four-dimensional Green-Schwarz anomaly cancellation mechanism with a surviving U(1) gauge group is described in the context of standard tensor calculus (superspace) techniques for local supersymmetry. This phenomenon is "dual" to the case in which a massless vector field is eaten up by an antisymmetric tensor which thereby describes a massive spin-one field. Both mechanisms are motivated by recent string-loop calculations. Unlike the case of some supergravity models, these mechanisms seem unable (order by order, at least) to break supersymmetry while keeping the cosmological constant vanishing.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
