Phys. Rev. D 43, 1459–1464 (1991)Analytical approximation of Z line shapeReceived 19 June 1990; published in the issue dated 1 March 1991 An analytical form of the e+e- annihilation cross section including initial-state radiation near the Z is presented. Its accuracy is 0.1% within (M-3ΓZ, M+2ΓZ) and 0.4% within (M-4ΓZ, M+4ΓZ) for the lepton as well as hadron channels. The formulas could be used to extract the physical parameters of the Z boson from the data of e+e- colliding experiments. © 1991 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevD.43.1459
DOI:
10.1103/PhysRevD.43.1459
PACS:
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