104,374 research outputs found
Muon Colliders: New Prospects for Precision Physics and the High Energy Frontier
An overview is given of muon collider technology and of the current status of
the muon collider research program. The exciting potential of muon colliders
for both neutrino physics and collider physics studies is then described and
illustrated using self-consistent collider parameter sets at 0.1 TeV to 100 TeV
center-of-mass energies.Comment: 17 pages, 2 figure
Rotating Band Pion Production Targets for Muon Colliders and Neutrino Factories
An update is presented on a conceptual design for a pion production target
station using a rotating cupronickel band and that was originally proposed for
use at a muon collider facility with a 4 MW pulsed proton beam. After reviewing
the salient design features and motivations for this target, ongoing studies
are described that are attempting to benchmark the thermal stresses and
radiation damage on the target band using data from the Fermilab antiproton
source and other operating targets. Possible parameter optimizations and
alternative technologies for the rotating band are surveyed, including
discussion on the the various proton beam parameters that might be encountered
for rotating band targets at either muon colliders or neutrino factories.
Finally, an outline is proposed for a possible R&D path towards capability for
the actual construction of rotating band pion production targets.Comment: 14 pages, 4 figures. Submitted to Proc. ICFA/ECFA Workshop on
Neutrino Factories Based on Neutrino Storage Rings (NuFACT'99), Lyon, France,
5-9 July, 199
Parameter Sets for 10 TeV and 100 TeV Muon Colliders, and their Study at the HEMC'99 Workshop
A focal point for the HEMC'99 workshop was the evaluation of straw-man
parameter sets for the acceleration and collider rings of muon colliders at
center of mass energies of 10 TeV and 100 TeV. These self-consistent parameter
sets are presented and discussed. The methods and assumptions used in their
generation are described and motivations are given for the specific choices of
parameter values. The assessment of the parameter sets during the workshop is
then reviewed and the implications for the feasibility of many-TeV muon
colliders are evaluated. Finally, a preview is given of plans for iterating on
the parameter sets and, more generally, for future feasibility studies on
many-TeV muon colliders.Comment: 20 pages, 2 figures. Submitted to Proc. HEMC'99 Workshop - Studies on
Colliders and Collider Physics at the Highest Energies: Muon Colliders at 10
TeV to 100 TeV; Montauk, NY, September 27-October 1, 199
A Matricial Algorithm for Polynomial Refinement
In order to have a multiresolution analysis, the scaling function must be
refinable. That is, it must be the linear combination of 2-dilation,
-translates of itself. Refinable functions used in connection with
wavelets are typically compactly supported. In 2002, David Larson posed the
question in his REU site, "Are all polynomials (of a single variable) finitely
refinable?" That summer the author proved that the answer indeed was true using
basic linear algebra. The result was presented in a number of talks but had not
been typed up until now. The purpose of this short note is to record that
particular proof
Mighty MURINEs: Neutrino Physics at Very High Energy Muon Colliders
An overview is given of the potential for neutrino physics studies through
parasitic use of the intense high energy neutrino beams that would be produced
at future many-TeV muon colliders. Neutrino experiments clearly cannot compete
with the collider physics. Except at the very highest energy muon colliders,
the main thrust of the neutrino physics program would be to improve on the
measurements from preceding neutrino experiments at lower energy muon
colliders, particularly in the fields of B physics, quark mixing and CP
violation. Muon colliders at the 10 TeV energy scale might already produce of
order 10^8 B hadrons per year in a favorable and unique enough experimental
environment to have some analytical capabilities beyond any of the currently
operating or proposed B factories. The most important of the quark mixing
measurements at these energies might well be the improved measurements of the
important CKM matrix elements |V_ub| and |V_cb| and, possibly, the first
measurements of |V_td| in the process of flavor changing neutral current
interactions involving a top quark loop. Muon colliders at the highest
center-of-mass energies that have been conjectured, 100--1000 TeV, would
produce neutrino beams for neutrino-nucleon interaction experiments with
maximum center-of-mass energies from 300--1000 GeV. Such energies are
comparable to the 314 GeV center-of-mass energy for electron-proton scattering
at the HERA collider, but the luminosity would would be several orders of
magnitude larger. This would potentially open up the possibility for high
statistics studies of any exotic particles, such as leptoquarks, that might
have been previously discovered at these energy scales.Comment: 23 pages, 7 figures. Submitted to Proc. HEMC'99 Workshop - Studies on
Colliders and Collider Physics at the Highest Energies: Muon Colliders at 10
TeV to 100 TeV; Montauk, NY, September 27-October 1, 199
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