17–22 May 2026
C.I.D
Europe/Zurich timezone

Development of the spin tune model for EDM investigations at storage rings

SUP4009
17 May 2026, 14:00
4h
C.I.D

C.I.D

Poster Presentation MC4.A24: Hadron accelerators: Accelerators and Storage Rings, Other Student poster session

Speaker

Anna Piccoli (University of Ferrara, Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara)

Description

Electric Dipole Moments (EDMs) are sensitive probes of CP violation and could help address some open questions of the Standard Model. Recent advances in storage ring and polarimetry technologies enabled the development of a new experimental method for EDM investigations. One of the main parameters involved in the EDM studies via storage rings is the Spin Coherence Time (SCT), i.e., the time during which the spins of all particles in a stored beam precess coherently. A long SCT increases the experimental sensitivity and minimizes the statistical uncertainties. To identify the optimal working conditions, the single-particle spin tune, defined as the number of spin precessions around the vertical axis per revolution, must be tracked with extremely high precision. A lattice-independent model was developed to accurately track the spin tune of single charged particles in a variety of storage rings, both existing and proposed, and was directly applied to SCT optimization. In this contribution, the model was tested on the hybrid storage ring, a new generation device conceived for EDM investigations, which uses electrostatic deflectors for confinement and magnetic quadrupoles for focusing.

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Author

Anna Piccoli (University of Ferrara, Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara)

Co-authors

Rahul Shankar (University of Ferrara, Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara) Mr Paolo Lenisa (University of Ferrara, Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara)

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