Cross sections of muon and charged pion pair production in electron-positron annihilation near the threshold | Zendy

Yu. M. Bystritskiy | Zendy; É. A. Kuraev | Zendy; G.V. Fedotovich | Zendy; F.V. Ignatov | Zendy

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Cross sections of muon and charged pion pair production in electron-positron annihilation near the threshold

Author(s) -

Yu. M. Bystritskiy,

É. A. Kuraev,

G.V. Fedotovich,

F.V. Ignatov

Publication year - 2005

Publication title -

physical review. d. particles, fields, gravitation, and cosmology/physical review. d, particles, fields, gravitation, and cosmology

Language(s) - English

Resource type - Journals

eISSN - 1550-7998

pISSN - 1550-2368

DOI - 10.1103/physrevd.72.114019

Subject(s) - physics , pion , muon , annihilation , pair production , nuclear physics , electron , positron , radiative transfer , coulomb , particle physics , invariant mass , scalar (mathematics) , bremsstrahlung , atomic physics , quantum mechanics , geometry , mathematics

The processes of muons (tau) and charged pions pairs production atelectron-positron annihilation with first order radiative corrections areconsidered. The calculation results are presented assuming the energies offinal particles (cms implied) to be not far significantly from thresholdproduction. The invariant mass distributions for the muon (tau) and pion pairsare obtained both for the initial and final state radiation. Some analyticalcalculations are illustrated numerically. The pions were assumed to bepoint-like objects and scalar QED was applied for calculation. The QEDradiative corrections related to the final state radiation, additional to thewell known Coulomb factor, are treated near threshold region exactly.Comment: 18 pages, 9 eps pics, 2 feynmp diagrams, uses amsmath, graphicx, feynmp, epsf, some references were adde

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