Fusing photons into diphoton resonances at Belle II and beyond

Francesca Acanfora; Roberto Franceschini; Alessio Mastroddi; Diego Redigolo

doi:10.1007/jhep12(2024)099

journal article Open Access Dec 12, 2024

Fusing photons into diphoton resonances at Belle II and beyond

Francesca Acanfora

Roberto Franceschini

Alessio Mastroddi

Diego Redigolo

Journal of High Energy Physics Vol. 2024 No. 12 · Springer Science and Business Media LLC

View at Publisher Save 10.1007/jhep12(2024)099

Abstract

Abstract

We propose a new search for a diphoton resonance in the e
+
e

−
+ γγ final state at Belle II where the full final state is reconstructed in the detector. This new channel improves the expected reach compared to the γ + γγ channel in most of the available mass range. For simplicity we show our results in the simple parameter space of an ALP coupled solely to Standard Model photons. In addition, we show how an extension of the forward coverage of Belle II, or another similar experiment at the high intensity frontier, could improve the reach in our channel. We show that such a forward extension can be advantageous even with a loss of a factor 100 in luminosity compared to Belle II.

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Details

Published: Dec 12, 2024
Vol/Issue: 2024(12)
License: View

Authors

F

Francesca Acanfora

Institute for Theoretical Particle Physics (TTP), Karlsruhe Institute of Technology (KIT); Galileo Galilei Institute for Theoretical Physics; Università degli Studi and INFN Roma Tre

R

Roberto Franceschini

Università degli Studi and INFN Roma Tre

A

Alessio Mastroddi

Università degli Studi and INFN Roma Tre

D

Diego Redigolo

INFN, Sezione di Firenze

Cite This Article

Francesca Acanfora, Roberto Franceschini, Alessio Mastroddi, et al. (2024). Fusing photons into diphoton resonances at Belle II and beyond. Journal of High Energy Physics, 2024(12). https://doi.org/10.1007/jhep12(2024)099

Fusing photons into diphoton resonances at Belle II and beyond

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