Elementary particle physics and high energy phenomena. Final technical report

Electrostatic accelerators have played a glorious role in physics, especially for low energy atomic and nuclear physics and electron microscopy. But circular accelerators have depended almost exclusively on the far greater bending force possible with static magnetic, rather than electric, fields. There is a potential exception to this magnetic bending monopoly for experimental high energy elementary particle physics — it is the possibility of measuring the electric dipole moments (EDMs) of charged elementary particles, such as proton, deuteron, or electron, using an electrostatic storage ring. Any such non-zero EDM would demonstrate violation of both parity (P) and time-reversal (T) invariance. One way of understanding the preponderance of matter over anti-matter in the present-day universe pre-supposes the existence of violations of P and T substantially greater than are allowed by the “standard model” of elementary particle physics. This provides the leading motivation for measuring EDMs. Currently, only upper limits are known for these EDMs. The very same smallness that makes it important to determine them makes their measurement difficult. Accepting as obvious the particle physics motivation, this paper concentrates on the accelerator physics of the (not very) high energy electrostatic accelerators needed for EDM measurements. Developments already completed are emphasized. Impressive advances have been made in the diagnostic tools, spin control and polarimetry that will make EDM measurement possible. Ring design for minimizing spin decoherence and limiting systematic EDM errors is presented. There have, however, been worrisome indications from low energy rings, concerning beam current limitations. A prototype ring design is proposed for investigating and addressing this concern.

Publisher’s Note: Spin Effects in High Energy Scattering in a Simple Constituent Model [AIP Conference Proceedings 624, Cosmology and Elementary Particle Physics, edited by B. N. Kursunoglu et al., pp. 201–210, 2002]

10.1063/1.1594407 ◽

2003 ◽

Author(s):

N. Kursunoglu

Keyword(s):

Elementary Particle ◽

Conference Proceedings ◽

Particle Physics ◽

High Energy ◽

Elementary Particle Physics ◽

Spin Effects ◽

Energy Scattering ◽

High Energy Scattering

Elementary particle physics and high energy phenomena. Progress report for FY92

10.2172/10156425 ◽

1992 ◽

Author(s):

A.R. Barker ◽

J.P. Cumalat ◽

S.P. de Alwis ◽

T.A. DeGrand ◽

W.T. Ford ◽

...

Keyword(s):

Elementary Particle ◽

Particle Physics ◽

High Energy ◽

Progress Report ◽

Elementary Particle Physics

Elementary particle physics and high energy phenomena

10.2172/7278109 ◽

1992 ◽

Author(s):

A.R. Barker ◽

J.P. Cumalat ◽

S.P. de Alwis ◽

T.A. DeGrand ◽

W.T. Ford ◽

...

Keyword(s):

Elementary Particle ◽

Particle Physics ◽

High Energy ◽

Elementary Particle Physics

The Elementary Particle Physics Research in Singapore: the Past, the Present and the Future

Asia Pacific Physics Newsletter ◽

10.1142/s2251158x12000185 ◽

2012 ◽

Vol 01 (02) ◽

pp. 4-4

Author(s):

Kok Khoo Phua

Keyword(s):

Elementary Particle ◽

Particle Physics ◽

High Energy Physics ◽

High Energy ◽

Asia Pacific ◽

Asia Pacific Region ◽

Elementary Particle Physics ◽

The Past ◽

Science Community ◽

Energy Physics

The discovery of the Higgs Boson (or more popularly known in media as God particle) in early July was hailed as one of the most significant scientific breakthrough in the 21st Century, stirring a sensation in the Science community and Media around the world. This discovery allows us to reassess our understanding of the importance of elementary particle physics or high energy physics, and how its study has to a certain extent influenced the direction of future development of scientific research as a whole. In this article, we want to take a look at how Singapore has fared in this area so far, and discuss some of the issues concerning the policies and directions of the research in the basic sciences in the Asia Pacific region.