One-loop effects in supergravity models with an additional U(1)

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Demir D., Pak N.

PHYSICAL REVIEW D, cilt.57, sa.11, ss.6609-6617, 1998 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 57 Sayı: 11
  • Basım Tarihi: 1998
  • Doi Numarası: 10.1103/physrevd.57.6609
  • Dergi Adı: PHYSICAL REVIEW D
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.6609-6617
  • Orta Doğu Teknik Üniversitesi Adresli: Hayır

Özet

For an Abelian extended supergravity model, we investigate some important low-energy parameters: tan beta, the Z-Z' mixing angle, lightest CP-even Higgs mass bound, Z' mass, and effective mu parameter. By integrating the renormalization group equations from the string scale down to the weak scale we constuct the scalar potential and analyze the quantities above at the tree- and one-loop levels by including the contributions of top squarks and top quark in the effective potential.