Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2011-08-04
Physics
High Energy Physics
High Energy Physics - Phenomenology
30 pages, 7 figures, 5 tables
Scientific paper
In light of the recent measurements of the top quark forward-backward asymmetry at the Fermilab Tevatron experiment, which in some regions of the parameter space shows a discrepancy of 3$\sigma$ compared to the SM prediction, we analyze top quark pair production and asymmetry in the context of left-right models both at the Tevatron and LHC. We use the minimal manifest left-right model and an asymmetric left-right model where gauge couplings and flavor mixing in the right-handed sector are allowed to differ from those in the left-handed sector. We explore the consequences of including effects from $W_R$ and $Z_R$ gauge bosons, consistent with phenomenological constraints from meson mixing and new bounds from ATLAS and CMS, for the $t \bar{t}$ cross section, invariant mass distribution and forward-backward asymmetry at the Tevatron, and predict their values at the LHC. We show that, choosing parameter benchmarks for the model while preserving agreement with collider, electroweak precision, and flavor violation data, the generic left-right model cannot account for the large deviations of the observed asymmetry at the Tevatron and also that it predicts very small charge asymmetries at the LHC.
Frank Mariana
Hayreter Alper
Turan Ismail
No associations
LandOfFree
Top Quark Pair Production and Asymmetry at the Tevatron and LHC in Left-Right Models does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Top Quark Pair Production and Asymmetry at the Tevatron and LHC in Left-Right Models, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Top Quark Pair Production and Asymmetry at the Tevatron and LHC in Left-Right Models will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-13840