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

Ryosuke Sato, T. T. Yanagida, Kazuya Yonekura

研究成果: Contribution to journalArticle査読

11 被引用数 (Scopus)

抄録

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.

本文言語英語
論文番号045003
ジャーナルPhysical Review D - Particles, Fields, Gravitation and Cosmology
81
4
DOI
出版ステータス出版済み - 2 1 2010

All Science Journal Classification (ASJC) codes

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

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