Bulletin of the American Physical Society
APS April Meeting 2010
Volume 55, Number 1
Saturday–Tuesday, February 13–16, 2010; Washington, DC
Session H4: Plans for Future High Energy Accelerators and Outlook on Advanced Concepts |
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Sponsoring Units: DPB DPF Chair: Swapan Chattopadyay, Cockcroft Institute Room: Thurgood Marshall North |
Sunday, February 14, 2010 10:45AM - 11:21AM |
H4.00001: SuperB: Design and Update Invited Speaker: Low-energy e$^{+}$e$^{-}$ colliders as heavy flavor factories are an important facet of the overall high-energy physics accelerator field. These high-luminosity colliders produce unprecedented data sets that allow for the study of extremely rare decays of heavy flavor mesons allowing them to push the Standard Model to new limits. Through the high-luminosity avenue these machines look for contributions to suppressed decay channels from new particles with very heavy masses. In addition, they can look for extremely weak couplings to lighter unknown particles. The high-energy physics theoretical community has, in recent years, developed the idea that there may be an entire sector of dark matter particles with masses as low as 1 GeV that couple only very weakly to ordinary matter. These suggested new particles can be looked for in these low-energy, high-luminosity machines. SuperB is a proposed high-luminosity B-meson factory to be built in Italy near the INFN laboratory in Frascati. The design calls for a luminosity of 1$\times $10$^{36}$ cm$^{-2}$s$^{-1}$, nearly 100 times higher than present day B-factories. Through a novel collision scheme, this collider achieves this high luminosity using beam currents and bunch lengths very similar to present day B-factories. The design calls for a large beam crossing angle at the collision point, very low-emittance beams (ala light source storage rings), a very small vertical beta function at the collision point and an implementation of a magnetically crabbed waist in order to achieve the desired luminosity. I will give an overview of the proposed design and an update on present progress. [Preview Abstract] |
Sunday, February 14, 2010 11:21AM - 11:57AM |
H4.00002: Key R{\&}D challenges for a muon collider Invited Speaker: Recently, there has been renewed interest in Muon Colliders in the US. A Muon Collider could reach the energy frontier, and would fit on an existing lab site. However, the technology is not yet proven. A national plan, outlining the critical R{\&}D that is needed to demonstrate Muon Collider feasibility, was recently produced. In this presentation, I will give an overview of the current status of Muon Collider R{\&}D, and outline the elements of the plan. [Preview Abstract] |
Sunday, February 14, 2010 11:57AM - 12:33PM |
H4.00003: Laser-driven soft x-ray undulator source Invited Speaker: In the relatively new field of laser-plasma accelerators significant progress has been recently achieved, such as reaching the 1.0 GeV level. After a short description of the relevant physics of this new type of electron accelerators and a quick look at the state of the art, I will present a first break-through towards applications, namely a laser-driven soft x-ray undulator source. By controlling the electron beam transport we have reached a remarkably stable operation, producing soft x-ray flashes with an estimated duration of just a few femtosecond. This is the first milestone towards few-femtosecond x-ray pump-probe experiments. Along a second path my group aims at realizing a laser-driven x-ray free-electron-laser which would be of university-lab scale only. A brief discussion of this long term project and its perspectives is given. [Preview Abstract] |
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