Published January 1, 2007 | Version v1
Journal article

Collider signals of top quark flavor violation from a warped extra dimension

  • 1. Department of Physics, Syracuse University, Syracuse, New York 13244 (United States)
  • 2. C.N. Yang Institute for Theoretical Physics, Nicolls Road, Stony Brook University, Stony Brook, NY 11794-3840 (United States)
  • 3. Theoretical Physics Group, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 (United States)
  • 4. Brookhaven National Laboratory, Upton, New York 11973 (United States)

Description

We study top quark flavor violation in the framework of a warped extra dimension with the Standard Model (SM) fields propagating in the bulk. Such a scenario provides solutions to both the Planck-weak hierarchy problem and the flavor puzzle of the SM without inducing a flavor problem. We find that, generically, tcZ couplings receive a huge enhancement, in particular, the right-handed ones can be O(1%). This results in BR(t→cZ) at or above the sensitivity of the Large Hadron Collider (LHC). At the International Linear Collider (ILC), single top production, via e+e-→tc, can be a striking signal for this scenario. In particular, it represents a physics topic of critical importance that can be explored even with a relatively low energy option, close to the tc threshold. At both the LHC and the ILC, angular distributions can probe the above prediction of dominance of right-handed couplings

Additional details

Publishing Information

Journal Title
Physical Review. D, Particles Fields
Journal Volume
75
Journal Issue
1
Journal Page Range
p. 015002-015002.5
ISSN
0556-2821
CODEN
PRVDAQ

Optional Information

Notes
(c) 2007 The American Physical Society