A GIM mechanism from extra dimensions

作者：Cacciapaglia Giacomo^*; Csaki Csaba; Galloway Jamison; Marandella Guido; Terning John; Weiler Andreas

来源：The Journal of High Energy Physics, 2008, (4): 006.

DOI：10.1088/1126-6708/2008/04/006

• field theories in higher dimensions
• CP violation
• beyond standard model
• technicolor and composite models

We explore how to protect extra dimensional models from large flavor changing neutral currents by using bulk and brane flavor symmetries. We show that a GIM mechanism can be built in to warped space models such as Randall- Sundrum or composite Higgs models if flavor mixing is introduced via UV brane kinetic mixings for right handed quarks. We give a realistic implementation both for a model with minimal flavor violation and one with next- to- minimal flavor violation. The latter does not suffer from a CP problem. We consider some of the existing experimental constraints on these models implied by precision electroweak tests.

• 出版日期2008-4