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Theoretical Particle Physics

Publications

Dilaton in a soft-wall holographic approach to mesons and baryons

Publicaciones

Dilaton in a soft-wall holographic approach to mesons and baryons

Research areas:

Física Teórica de Partículas

Year:

2012

Type of Publication:

In Proceeding

Authors:

  • Alfredo Vega
  • Ivan Schmidt
  • Thomas Gutsche
  • Valery E. Lyubovitskij

Journal:

Phys.Rev.

Volume:

D85

Pages:

13

Abstract:

We discuss a holographic soft-wall model developed for the description of mesons and baryons with adjustable quantum numbers n, J, L, S. This approach is based on an action which describes hadrons with broken conformal invariance and which incorporates confinement through the presence of a background dilaton field. We show that in the case of the bound-state problem (hadronic mass spectrum) two versions of the model with a positive and negative dilaton profile are equivalent to each other by a special transformation of the bulk field. We also comment on recent works which discuss the dilaton sign in the context of soft-wall approaches.

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