WTO — a deterministic approach to 4-fermion physics |
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Authors: | Giampiero Passarino |
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Affiliation: | aDipartimento di Fisica Teorica, Università di Torino, Torino, Italy;bINFN, Sezione di Torino, Torino, Italy |
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Abstract: | The program WTO, which is designed for computing cross sections and other relevant observables in the e+e− annihilation into four fermions, is described. The various quantities are computed over both a completely inclusive experimental set-up and a realistic one, i.e. with cuts on the final state energies, final state angles, scattering angles and final state invariant masses. Initial state QED corrections are included by means of the structure function approach while final state QCD corrections are applicable in their naive formulation. A gauge restoring mechanism is included according to the Fermion-Loop scheme. The program structure is highly modular and particular care has been devoted to computing efficiency and speed. |
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Keywords: | e+e&minus annihilation into four fermions LEP 2 Properties of the W vector boson Higgs boson Initial and final state QED radiation QCD corrections Minimal Standard Model Cross sections and moments of distributions Gauge invariance Theoretical error Deterministic integration |
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