Covariant Description of Flavor Conversion in the LHC Era
arXiv:1003.3869 · doi:10.1007/JHEP10(2010)046
Abstract
A simple covariant formalism to describe flavor and CP violation in the left-handed quark sector in a model independent way is provided. The introduction of a covariant basis, which makes the standard model approximate symmetry structure manifest, leads to a physical and transparent picture of flavor conversion processes. Our method is particularly useful to derive robust bounds on models with arbitrary mechanisms of alignment. Known constraints on flavor violation in the K and D systems are reproduced in a straightforward manner. Assumptions-free limits, based on top flavor violation at the LHC, are then obtained. In the absence of signal, with 100 fb^{-1} of data, the LHC will exclude weakly coupled (strongly coupled) new physics up to a scale of 0.6 TeV (7.6 TeV), while at present no general constraint can be set related to Delta t=1 processes. LHC data will constrain Delta F=2 contributions via same-sign tops signal, with a model independent exclusion region of 0.08 TeV (1.0 TeV). However, in this case, stronger bounds are found from the study of CP violation in D-bar D mixing with a scale of 0.57 TeV (7.2 TeV). In addition, we apply our analysis to models of supersymmetry and warped extra dimension. The minimal flavor violation framework is also discussed, where the formalism allows to distinguish between the linear and generic non-linear limits within this class of models.
24 pages, 6 figures. Some corrections and clarifications; references added. Matches published version
References in corpus (27)
- General Minimal Flavor Violation
- Collider Signals of Top Quark Flavor Violation from a Warped Extra Dimension
- Flavor from Minimal Flavor Violation & a Viable Randall-Sundrum Model
- Constraints on New Physics in MFV models: a model-independent analysis of Delta F=1 processes
- Natural Neutrino Masses and Mixings from Warped Geometry
- Supersymmetric models with minimal flavour violation and their running
- Flavor Violation Tests of Warped/Composite SM in the Two-Site Approach
- Minimal Flavor Protection: A New Flavor Paradigm in Warped Models
- Combining K-\bar K mixing and D-\bar D mixing to constrain the flavor structure of new physics
- D-Dbar mixing and new physics: general considerations and constraints on the MSSM
- A Simple Flavor Protection for RS
- Relating D0-anti-D0 Mixing and D0 -> l+l- with New Physics
- B-Meson Observables in the Maximally CP-Violating MSSM with Minimal Flavour Violation
- Deciphering top flavor violation at the LHC with B factories
- On Indirect CP Violation and Implications for D0-\overline{D0} and Bs -\overline{Bs} mixing
- Lessons from Recent Measurements of D-\bar D Mixing
- Updated constraints on new physics in rare charm decays
- Next to Minimal Flavor Violation
- Study of ATLAS sensitivity to FCNC top decays
- Flavour Physics and CP Violation
- Do squarks have to be degenerate? Constraining the mass splitting with Kaon and D mixing
- Searching for New Physics with Charm
- Same-sign top pair production in an extra-dimension model of flavor at the CERN Large Hadron Collider
- Covariant Description of Flavor Violation at the LHC
- No Pain, No Gain -- On the Challenges and Promises of Charm Studies
- Effective Theories for Flavour Physics beyond the Standard Model
- Brief Introduction to Flavor Physics