$e^+ e^- \to$ Neutrino Anti-neutrino $\gamma$: The Importance of an Exact Calculation

Romao, J.C.; Bento, L.; Barroso, A.

doi:10.1016/0370-2693(87)91080-X

$e^+ e^- \to$ Neutrino Anti-neutrino $\gamma$ : The Importance of an Exact Calculation

Mar 16, 1987

7 pages

Published in:

Phys.Lett.B 194 (1987) 440-446

Published: 1987

DOI:

10.1016/0370-2693(87)91080-X

Report number:

IFM-2/87

View in:

ADS Abstract Service

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Abstract: (Elsevier)

We make a detailed study of the reaction e + e − →ν ν γ . We derive the helicity amplitudes using the spinor product product formalism and discuss the effects of beam polarization. Our exact and analytical results are compared with the ones derived using the local approximation for the W-exchange diagram.

ELECTRON POSITRON: ANNIHILATION
ANNIHILATION: ELECTRON POSITRON
NEUTRINO: PAIR PRODUCTION
PAIR PRODUCTION: NEUTRINO
ELECTRON: POLARIZED BEAM
POLARIZED BEAM: ELECTRON
HELICITY: AMPLITUDE ANALYSIS
DIFFERENTIAL CROSS SECTION: ENERGY DEPENDENCE
ENERGY DEPENDENCE: DIFFERENTIAL CROSS SECTION
W: EXCHANGE

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