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Preprint . 2001
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Article . 2001
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Electromagnetic corrections to gamma pi(+) -> pi(0) pi(+)

descriptionPublicationkeyboard_double_arrow_right Preprint , Article 01 Jan 2001 France
Authors: Ametller, Ll.; Knecht, Marc; Talavera, P.;

arXiv: hep-ph/0107127

Electromagnetic corrections to gamma pi(+) -> pi(0) pi(+)

Abstract

The amplitude for the anomalous transitions gamma pi(+) -> pi(0) pi(+) is analyzed within Chiral Perturbation Theory including electromagnetic interactions. The presence of a t-channel one-photon exchange contribution induces sizeable e^2 corrections which enhance the cross-section in the threshold region and bring the theoretical prediction into agreement with available data. In the case of the crossed reaction gamma pi(0) -> pi(+) pi(-), the same contribution appears in the s-channel and its effects are small.

Comment: 16 pages, 4 figures, fixed two typos, no changes

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Keywords

[PHYS.HPHE] Physics [physics]/High Energy Physics - Phenomenology [hep-ph], High Energy Physics - Phenomenology, [PHYS.HTHE] Physics [physics]/High Energy Physics - Theory [hep-th], High Energy Physics - Experiment

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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!
0
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