Testing scalar-sectorCPviolation in top-quark production and decay at lineare+e−colliders
نویسندگان
چکیده
منابع مشابه
Top Quark Production and Decay at the Tevatron
Recent measurements of the top quark production cross section and decay properties by the CDF and D0 experiments are described. The cross section has been measured in dilepton, lepton plus jets, and all-hadronic final states, and a measurement of BR(t → Wb)/BR(t → Wq), where q is any quark, has been performed. The results, though statistics-limited, are consistent with each other and with theor...
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In ongoing and upcoming hadron collider experiments, top quark physics will play an important rôle in testing the Standard Model and its possible extensions. In this work we present analytic results for the differential cross sections of top quark pair production in hadronic collisions at next-to-leading order in the QCD coupling, keeping the full dependence on the spins of the top quarks. Thes...
متن کاملB-hadron production in top quark decay
We present the energy distribution of b-flavoured hadrons in top quark decay using the PYTHIA and HERWIG event generators, which we tune to LEP and SLD data. We find that fitting the string and cluster models is essential to reproduce the ee data and to reliably predict B-hadron production in top decay. We also compare the PYTHIA and HERWIG results with the ones yielded by resummed calculations...
متن کاملTop-Quark Production and Decay in the MSSM
We review the features of top-quark decays and loop-induced effects in the production cross section and CP-violating observables of e+e− → tt̄ which are specific to the R-parity conserving Minimal Supersymmetric Standard Model (MSSM). Contribution to the proceedings of the 2nd Joint ECFA/DESY Workshop on Physics and Detectors for a Linear Electron-Positron Collider, based on talks presented by J...
متن کاملTop Quark Pair Production and Decay including Spin Effects at Hadron Colliders: Predictions at NLO QCD
Top quark-antiquark (tt̄) pairs will be produced copiously at the Tevatron collider and in huge numbers at the LHC. This will make possible detailed investigations of the properties and interactions of this quark flavor. The analysis and interpretation of future data requires precise predictions of the hadronic production of tt̄ pairs and of their subsequent decays. In this talk the reactions pp̄,...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2001
ISSN: 0556-2821,1089-4918
DOI: 10.1103/physrevd.63.115010