Relaxing a constraint on the number of messengers in a low-scale gauge mediation

Ryosuke Sato, T. T. Yanagida, Kazuya Yonekura

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

We propose a mechanism for relaxing a constraint on the number of messengers in low-scale gauge mediation models. The Landau pole problem for the standard-model gauge coupling constants in the low-scale gauge mediation can be circumvented by using our mechanism. An essential ingredient is a large positive anomalous dimension of messenger fields given by a large Yukawa coupling in a conformal field theory at high energies. The positive anomalous dimension reduces the contribution of the messengers to the beta function of the standard-model gauge couplings.

Original languageEnglish
Article number045003
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume81
Issue number4
DOIs
Publication statusPublished - 2010 Feb 1
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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