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Towards an improved understanding of $\e...

Holz, S....

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Towards an improved understanding of $\eta \to \gamma^* \gamma^*$ by Holz, S. ( Author )

Content Provider	Lemonjar Open Access
Publisher	N.A
Publication Date	07-09-2015
Summary	We argue that high-quality data on the reaction e+e−→π+π−η will allow one to determine the doubly-virtual form factor η→γ∗γ∗ in a model-independent way with controlled accuracy. This is an important step towards a reliable evaluation of the hadronic light-by-light scattering contribution to the anomalous magnetic moment of the muon. When analyzing the existing data for e+e−→π+π−η for total energies squared k2>1GeV2, we demonstrate that the effect of the a2 meson provides a natural breaking mechanism for the commonly employed factorization ansatz in the doubly-virtual form factor Fηγ∗γ∗(q2,k2). However, better data are needed to draw firm conclusions.
ISBN	-
Item Type	Article
File Type	pdf
File Size	36.88 KB
Language	English
Subjects	-
Unlimited	MYR 0.00
Total read	-
URL	https://arxiv.org/abs/1509.02194

Citation

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AMA 11th EditionReferences

Holz, S.. Towards an improved understanding of $\eta \to \gamma^* \gamma^*$. N.A. September 07, 2015. Accessed August 15, 2025. https://online.provdatabase.com/cite/11323

APA 7th EditionReferences

Holz, S.. (2015). Towards an improved understanding of $\eta \to \gamma^* \gamma^*$. N.A. https://online.provdatabase.com/cite/11323

Chicago 17th EditionReferences

Holz, S.. Towards an improved understanding of $\eta \to \gamma^* \gamma^*$. N.A. 2015. https://online.provdatabase.com/cite/11323

HarvardReferences

Holz, S.. (2015). Towards an improved understanding of $\eta \to \gamma^* \gamma^*$. [Online]. N.A. Available from: https://online.provdatabase.com/cite/11323. (Accessed 15 August 2025).

Harvard AustraliaReferences

Holz, S., 2015, Towards an improved understanding of $\eta \to \gamma^* \gamma^*$, N.A, viewed 15 August 2025, <https://online.provdatabase.com/cite/11323>

MLA 9th EditionWorks Cited

Holz, S.. Towards an improved understanding of $\eta \to \gamma^* \gamma^*$. N.A, 2015. PROV Database, https://online.provdatabase.com/cite/11323.

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