| Issue |
EPJ Web Conf.
Volume 315, 2024
International Workshop on Future Linear Colliders (LCWS2024)
|
|
|---|---|---|
| Article Number | 01006 | |
| Number of page(s) | 7 | |
| Section | Physics | |
| DOI | https://doi.org/10.1051/epjconf/202431501006 | |
| Published online | 18 December 2024 | |
https://doi.org/10.1051/epjconf/202431501006
Impact of longitudinally and transversely polarized beams on probing CP-violating HZZ interactions at the ILC
1 School of Science, Sun Yat-sen University, Gongchang Road 66, 518107 Shenzhen, China
2 Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany
3 II. Institut für Theoretische Physik Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany
* e-mail: lich389@mail.sysu.edu.cn
** e-mail: gudrid.moortgat-pick@desy.de
Published online: 18 December 2024
We study possible CP-violation effects of the Higgs to Z-boson coupling at a future e+e− collider, e.g. the International Linear Collider (ILC). We find that the azimuthal angular distribution of the muon pair, produced by e+e− → HZ → Hµ+µ−, can be sensitive to such a CP-violation effect when the initial beams are transversely polarized. Based on this angular distribution, we construct a CP sensitive asymmetry and obtain this asymmetry by Whizard simulation. By comparing the SM prediction with 2σ range of this asymmetry, we estimate the limit of the CP-odd coupling in the HZZ interaction.
© The Authors, published by EDP Sciences, 2024
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