Precision Storage Rings for Electric Dipole Moment Searches: A Tool En Route to Physics Beyond-the-Standard-Model

被引：1

作者：

Stroeher, Hans ^{[1
]}

Schmidt, Sebastian M. ^{[2
,3
]}

Lenisa, Paolo ^{[4
]}

Pretz, Joerg ^{[1
,3
]}

机构：

[1] Forschungszentrum Julich, D-52425 Julich, Germany

[2] HZDR, D-01328 Dresden, Germany

[3] Rhein Westfal TH RWTH Aachen, D-52074 Aachen, Germany

[4] Univ Ferrara, Ist Nazl Fis Nucl, I-44100 Ferrara, Italy

来源：

PARTICLES | 2023年 / 6卷 / 01期

基金：

欧洲研究理事会;

关键词：

Baryon asymmetry; dark matter; electric dipole moments; storage rings; polarized beams; DARK-MATTER;

D O I：

10.3390/particles6010020

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Electric Dipole Moments (EDM) of particles (leptons, nucleons, and light nuclei) are currently deemed one of the best indicators for new physics, i.e., phenomena which lie outside the Standard Model (SM) of elementary particle physics-so-called physics "Beyond-the-Standard-Model" (BSM). Since EDMs of the SM are vanishingly small, a finite permanent EDM would indicate charge-parity (CP) symmetry violation in addition to the well-known sources of the SM, and could explain the baryon asymmetry of the Universe, while an oscillating EDM would hint at a possible Dark Matter (DM) field comprising axions or axion-like particles (ALPs). A new approach exploiting polarized charged particles (proton, deuteron, He-3) in precision storage rings offers the prospect to push current experimental EDM upper limits significantly further, including the possibility of an EDM discovery. In this paper, we describe the scientific background and the steps towards the realization of a precision storage ring, which will make such measurements possible.

引用

页码：385 / 398

页数：14