Showing papers by "Mayda Velasco published in 2003"
TL;DR: In this paper, a search for the decay K S → π 0 μ + μ − has been made by the NA48/1 Collaboration at the CERN SPS accelerator.
53 citations
TL;DR: The CLIC Higgs Experiment (CLICHE) as mentioned in this paper is a two-beam accelerator with a laser backscattering system capable of producing a light Higgs boson.
Abstract: We present the machine parameters and physics capabilities of the CLIC Higgs Experiment (CLICHE), a low-energy $\gamma \gamma$
collider based on CLIC 1, the demonstration project for the higher-energy two-beam accelerator CLIC CLICHE is conceived as a factory capable of producing around 20,000 light Higgs bosons per year We discuss the requirements for the CLIC 1 beams and a laser backscattering system capable of producing a $\gamma \gamma$
total
(peak) luminosity of $20 (036) \times 10^{34}$
cm-2s-1 with $E_{CM}(\gamma \gamma) \sim 115$
GeV We show how CLICHE could be used to measure accurately the mass, $\bar b b$
, WW and $\gamma \gamma$
decays of a light Higgs boson We illustrate how these measurements may distinguish between the Standard Model Higgs boson and those in supersymmetric and more general two-Higgs-doublet models, complement
ing the measurements to be made with other accelerators We also comment on other prospects in $\gamma \gamma$
and $e^- \gamma$
physics with CLICHE
42 citations
32 citations
University of Cambridge1, Rutherford Appleton Laboratory2, CERN3, Joint Institute for Nuclear Research4, University of Edinburgh5, University of Ferrara6, University of Modena and Reggio Emilia7, University of Mainz8, University of Paris-Sud9, Scuola Normale Superiore di Pisa10, DSM11, University of Siegen12, Austrian Academy of Sciences13
TL;DR: In this paper, an upper bound for the branching ratio BR (K S → π 0 γγ, z ⩾ 0.2) −7 has been obtained at 90% confidence level.
9 citations
24 Jan 2003
TL;DR: In this paper, preliminary investigations are summarized on the possible use of the CTF3 facility for extended beam-dynamics studies and advanced accelerator R&D, which would exploit its unique properties and beam availability.
Abstract: Preliminary investigations are summarized on the possible use of the CTF3 facility for extended beam-dynamics studies and advanced accelerator R&D, which would exploit its unique properties and beam availability. The key element of these considerations is the possible addition of a test beam-delivery system comprising a compact final focus and advanced collimation concepts, scaled from 3 TeV down to low energy and having a short total length. Operational experience, verification of critical questions (octupole tail folding, beam halo transport, etc.), diagnostics (e.g., rf BPMs) and stabilization could all be explored in such a facility, which would benefit not only the CLIC study, but all linear collider projects. Another interesting application would be the study of plasma-beam interaction, which may include plasma focusing, plasma acceleration, ion-channel radiation, and plasma wigglers.
2 citations