Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2008-12-27
Commun.Theor.Phys.52:302-310,2009
Physics
High Energy Physics
High Energy Physics - Phenomenology
22 pages and 13 figures
Scientific paper
10.1088/0253-6102/52/2/23
The top-pair production in association with a $Z^0$-boson at a photon-photon collider is an important process in probing the coupling between top-quarks and vector boson and discovering the signature of possible new physics. We describe the impact of the complete supersymmetric QCD(SQCD) next-to-leading order(NLO) radiative corrections on this process at a polarized or unpolarized photon collider, and make a comparison between the effects of the SQCD and the standard model(SM) QCD. We investigate the dependence of the lowest-order(LO) and QCD NLO corrected cross sections in both the SM and minimal supersymmetric standard model(MSSM) on colliding energy $\sqrt{s}$ in different polarized photon collision modes. The LO, SM NLO and SQCD NLO corrected distributions of the invariant mass of $t\bar t$-pair and the transverse momenta of final $Z^0$-boson are presented. Our numerical results show that the pure SQCD effects in \ggttz process can be more significant in the $+ +$ polarized photon collision mode than in other collision modes, and the relative SQCD radiative correction in unpolarized photon collision mode varies from 32.09% to $-1.89 %$ when $\sqrt{s}$ goes up from $500 GeV$ to $1.5 TeV$.
Chuan-Fei Dong
Lei Guo
Ren-You Zhang
Shao-Ming Wang
Wen-gan Ma
No associations
LandOfFree
SUSY QCD impact on top-pair production associated with a $Z^0$-boson at a photon-photon collider 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 SUSY QCD impact on top-pair production associated with a $Z^0$-boson at a photon-photon collider, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and SUSY QCD impact on top-pair production associated with a $Z^0$-boson at a photon-photon collider will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-191535