Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2011-12-21
Phys. Rev. D 85, 034016 (2012)
Physics
High Energy Physics
High Energy Physics - Phenomenology
27 pages, 12 figures
Scientific paper
10.1103/PhysRevD.85.034016
We present the azimuthal correlations in the decay products of the top quark pair created in the process $gg \to t \tbar \to b \bbar \wplus \wminus$ calculated in leading-order QCD. We then discuss deviations in this distribution that could arise from New Physics contributions, focusing, in particular, on the case of a new heavy scalar coupling to the top quark and produced via the gluon fusion mechanism. Within this scenario we consider two cases: one in which the top quark is the only particle with a significant coupling to the scalar and another in which there are additional heavy fermions that modify the effective coupling of the scalar to gluons. We discuss the effects on the overall cross section and azimuthal correlations of the top quark decay products, with particular emphasis on the effect of interference between the QCD and New Physics contributions and on the existence of CP-nonconserving couplings.
Barger Vernon
Keung Wai-Yee
Yencho Brian
No associations
LandOfFree
Azimuthal Correlations in Top Pair Decays and The Effects of New Heavy Scalars 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 Azimuthal Correlations in Top Pair Decays and The Effects of New Heavy Scalars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Azimuthal Correlations in Top Pair Decays and The Effects of New Heavy Scalars will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-305538