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Integrating the MANX 6-D Muon Cooling Experiment with the MICE Spectrometers

Description: The MANX experiment is to demonstrate the reduction of 6D muon phase space emittance using a continuous liquid absorber to provide ionization cooling in a helical solenoid magnetic channel. The experiment involves the construction of a short two-period long helical cooling channel (HCC) to reduce the muon invariant emittance by a factor of two. The HCC would replace the current cooling section of the MICE experiment now being setup at the Rutherford Appleton Laboratory. The MANX experiment would use the existing MICE spectrometers and muon beam line. This paper shall consider the various approaches to integrate MANX into the RAL hall using the MICE spectrometers. This study shall discuss the matching schemes used to minimize losses and prevent emittance growth between the MICE spectrometers and the MANX HCC. Also the placement of additional detection planes in the matching region and the HCC to improve the resolution will be examined.
Date: May 1, 2009
Creator: Kahn, S.A.; Abrams, R.J.; Ankenbrandt, C.; Cummings, M.A.C.; Johnson, R.P.; Roberts, T. et al.
Partner: UNT Libraries Government Documents Department

Isochronous pion decay channel for enhanced muon capture

Description: Intense muon beams have many potential applications, including neutrino factories and muon colliders. However, muons are produced in tertiary beams into a diffuse phase space. To make useful beams, the muons must be rapidly cooled before they decay. A promising new concept for the collection and cooling of muon beams is being investigated, namely, the use of a nearly Isochronous Helical Transport Channel (IHTC) to facilitate capture of muons into RF bunches. Such a distribution could be cooled quickly and coalesced into a single bunch to optimize the luminosity of a muon collider. We describe the IHTC and provide simulations demonstrating isochronicity, even in the absence of RF and absorber.
Date: June 1, 2008
Creator: Yoshikawa, C.; Ankenbrandt, C.; Neuffer, D.; Popovic, M.; Yonehara, K.; /Fermilab et al.
Partner: UNT Libraries Government Documents Department

Charged Kaon Mass Measurement using the Cherenkov Effect

Description: The two most recent and precise measurements of the charged kaon mass use X-rays from kaonic atoms and report uncertainties of 14 ppm and 22 ppm yet differ from each other by 122 ppm. We describe the possibility of an independent mass measurement using the measurement of Cherenkov light from a narrow-band beam of kaons, pions, and protons. This technique was demonstrated using data taken opportunistically by the Main Injector Particle Production experiment at Fermi National Accelerator Laboratory which recorded beams of protons, kaons, and pions ranging in momentum from +37 GeV/c to +63 GeV/c. The measured value is 491.3 {+-} 1.7 MeV/c{sup 2}, which is within 1.4{sigma} of the world average. An improvement of two orders of magnitude in precision would make this technique useful for resolving the ambiguity in the X-ray data and may be achievable in a dedicated experiment.
Date: September 1, 2009
Creator: Graf, N.; U., /Indiana; Lebedev, A.; /Harvard U., Phys. Dept.; Abrams, R.J.; U., /Michigan et al.
Partner: UNT Libraries Government Documents Department