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European Physical Journal C: Particles and Fields
Article . 2002 . Peer-reviewed
License: Springer TDM
Data sources: Crossref
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Predictions for ${\bar \nu} \nu \gamma$ production at LEP

Authors: Bardin, D.; Jadach, S.; Riemann, T.; Was, Z.;

Predictions for ${\bar \nu} \nu \gamma$ production at LEP

Abstract

We study predictions for the reaction $e^+e^- \to {\bar \nu} \nu (n \gamma)$. The complete one-loop corrections are taken into account and higher order contributions, in particular those for the observed real photons, are added whenever necessary. The event generator \KK MC, a general-purpose Monte Carlo generator for the process $e^+e^- \to \bar f f n\gamma$ based on the method of exclusive exponentiation, is used as the environment. We extend its applicability to the process $e^+e^- \to \bar \nu_l \nu_l n\gamma$, $l=e,\mu,\tau$, where the observation of at least a single $\gamma$ is required. The exponentiation is implemented in much the same way as for the s-channel process alone. In particular, all photonic effects present in the case of W exchange, which {\it cannot} be included in the s-channel exponentiation scheme, are calculated to a finite order only. The real hard photon matrix element is calculated up to ${\cal O} ({\alpha^2})$. Leading logarithmic contributions of the two-loop corrections and one-loop photonic corrections accompanying real single photon emission are included. The electroweak corrections are calculated with the DIZET library of the ZFITTER package. Numerical tests and predictions for typical observables are presented.

Country
Germany
Keywords

form factor, neutrino: pair production, Feynman graph: higher-order, 189 GeV-cms, master equation, electron positron: annihilation, photon: multiple production, W: exchange, quantum electrodynamics: correction, photon: associated production, High Energy Physics - Phenomenology, neutrino: flavor, info:eu-repo/classification/ddc/530, numerical calculations: Monte Carlo, electron positron --> antineutrino neutrino (n)photon

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
17
Average
Top 10%
Top 10%
Green
gold