Revealing Fundamental Interactions: the Role of Polarized Positrons and Electrons at the Linear Collider

Moortgat-Pick, G. ; Abe, T. ; Alexander, G. ; Ananthanarayan, B. ; Babich, A. A. ; Bharadwaj, V. ; Barber, D. ; Bartl, A. ; Brachmann, A. ; Chen, S. ; Clarke, J. ; Clendenin, J. E. ; Dainton, J. ; Desch, K. ; Diehl, M. ; Dobos, B. ; Dorland, T. ; Eberl, H. ; Ellis, John R. ; Flottman, K. ; Frass, H.

Stanford Linear Accelerator Center

关键词: Phenomenology-Hep,Accphy, Hepex, Hepph, Hepth;    Linear Colliders;    Electron Beams;    43 Particle Accelerators;    Standard Model Phenomenology-Hep,Accphy, Hepex, Hepph, Hepth;   

DOI  :  10.2172/878871
RP-ID  :  SLAC-PUB-11087
RP-ID  :  AC02-76SF00515
RP-ID  :  878871

美国|英语

来源: UNT Digital Library

【 摘 要 】

The proposed International Linear Collider (ILC) is well-suited for discovering physics beyond the Standard Model and for precisely unraveling the structure of the underlying physics. The physics return can be maximized by the use of polarized beams. This report shows the paramount role of polarized beams and summarizes the benefits obtained from polarizing the positron beam, as well as the electron beam. The physics case for this option is illustrated explicitly by analyzing reference reactions in different physics scenarios. The results show that positron polarization, combined with the clean experimental environment provided by the linear collider, allows to improve strongly the potential of searches for new particles and the identification of their dynamics, which opens the road to resolve shortcomings of the Standard Model. The report also presents an overview of possible designs for polarizing both beams at the ILC, as well as for measuring their polarization.