Academic Journal
Little Supersymmetry and the Supersymmetric Little Hierarchy Problem
| العنوان: | Little Supersymmetry and the Supersymmetric Little Hierarchy Problem |
|---|---|
| المؤلفون: | Andreas Birkedal A, Z. Chacko C, Mary K. Gaillard C |
| المساهمون: | The Pennsylvania State University CiteSeerX Archives |
| المصدر: | http://arxiv.org/pdf/hep-ph/0404197v1.pdf. |
| سنة النشر: | 2004 |
| المجموعة: | CiteSeerX |
| الوصف: | The current experimental lower bound on the Higgs mass significantly restricts the allowed parameter space in most realistic supersymmetric models, with the consequence that these models exhibit significant fine-tuning. We propose a solution to this ‘supersymmetric little hierarchy problem’. We consider scenarios where the stop masses are relatively heavy- in the 500 GeV to a TeV range. Radiative stability of the Higgs soft mass against quantum corrections from the top quark Yukawa coupling is achieved by imposing a global SU(3) symmetry on this interaction. This global symmetry is only approximate- it is not respected by the gauge interactions. A subgroup of the global symmetry is gauged by the familiar SU(2) of the Standard Model. The physical Higgs is significantly lighter than the other scalars because it is the pseudo-Goldstone boson associated with the breaking of this symmetry. Radiative corrections to the Higgs potential naturally lead to the right pattern of gauge and global symmetry breaking. We show that both the gauge |
| نوع الوثيقة: | text |
| وصف الملف: | application/pdf |
| اللغة: | English |
| Relation: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.341.5802; http://arxiv.org/pdf/hep-ph/0404197v1.pdf |
| الاتاحة: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.341.5802 http://arxiv.org/pdf/hep-ph/0404197v1.pdf |
| Rights: | Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
| رقم الانضمام: | edsbas.C91BD815 |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |