Skip to main content

Research Repository

Advanced Search

How to measure the spin of invisible states in e + e − → γ + X

Bauer, Martin; Nordahl Erner, Sofie

How to measure the spin of invisible states in e + e − → γ + X Thumbnail


Authors

Sofie Erner sofie.n.erner@durham.ac.uk
PGR Student Doctor of Philosophy



Abstract

We examine the production of an invisible state X together with a photon, eþe− → γ þ X, at electron positron colliders and present measurement strategies that can detect the spin of the invisible state as well as the underlying production mechanism, based on the angular distribution of the final-state photon, the cross sections for polarized initial states, and the photon polarization. Our measurement strategy can be used to identify whether the invisible state is a hidden photon or an axion. The results are compared with a detailed analysis of the Standard Model background, and we calculate the sensitivity reach for searches for axionsand hidden photons at Belle II.

Citation

Bauer, M., & Nordahl Erner, S. (2023). How to measure the spin of invisible states in e + e − → γ + X. Physical Review D, 108, Article 115013. https://doi.org/10.1103/PhysRevD.108.115013

Journal Article Type Article
Acceptance Date Nov 13, 2023
Online Publication Date Dec 12, 2023
Publication Date 2023-12
Deposit Date Feb 6, 2024
Publicly Available Date Feb 6, 2024
Journal Physical Review D
Print ISSN 2470-0010
Electronic ISSN 2470-0029
Publisher American Physical Society
Peer Reviewed Peer Reviewed
Volume 108
Article Number 115013
DOI https://doi.org/10.1103/PhysRevD.108.115013
Public URL https://durham-repository.worktribe.com/output/2227944

Files





You might also like



Downloadable Citations