NLO polarized chargino pair production in electron positron annihilation
نویسندگان
چکیده
منابع مشابه
Prototype Graphs for Radiative Corrections to Polarized Chargino or Neutralino Production in Electron-Positron Annihilation
We present the contributions from all types of one-loop corrections to the scattering amplitude for the pair production of polarized charginos or neutralinos from polarized electron-positron annihilation. The contributions are classified in terms of “prototypes” distinguished by the number of particles inside the loops and their spins. The results are quoted in terms of the Veltman-Passarino fu...
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We present a thorough analysis of the direct semiexclusive production in quantum chromodynamics (QCD) of single, highly isolated mesons from electron-positron or two-photon initial states. Corrections of higher order and of subleading twist are considered, and potential divergences in the naive calculation are contained. Monte Carlo methods are used to relate the QCD calculations to experimenta...
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The chargino χ̃±1,2 system can be reconstructed completely in e +e− collisions. By measuring the total cross sections and the asymmetries with polarized beams in e+e− → χ̃i χ̃−j [i, j = 1, 2], the chargino masses and the gaugino–higgsino mixing angles of these states can be determined very accurately. If only the lightest charginos χ̃±1 are kinematically accessible, transverse beam polarization is ...
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The results of a complete one-loop calculation for the production of chargino pairs in electron-positron collisions, including the option of polarized beams, are presented. The calculation has been performed in the on-shell renormalization scheme. Applications to the integrated cross section, to the forward-backward asymmetry for unpolarized beams, and to the left-right asymmetry show that the ...
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In this article the final-state radiation (FSR) of the hard photon in e−(p1) + e(p2) → γ ∗(Q) → π(p+) + π −(p−) + γ(k) reaction is considered in the framework of ChPT with vector ρ and axial–vector a1 mesons 1) (the FSR diagrams are shown in Fig.1). Our consideration of FSR is motivated by the necessity to study model dependence of the next-to-leading order hadronic contribution a μ to anomalou...
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ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2010
ISSN: 1029-8479
DOI: 10.1007/jhep04(2010)098