73,887 research outputs found
Computation of effective dynamic properties of naturally fractured reservoirs: Comparison and validation of methods
Imperial Users onl
Recent CMS Results on Forward and Small-x QCD Physics
Recent CMS results on Forward and Small-x QCD Physics are presented. Those
include the measurement of the Underlying Event activity and the study of jet
production at large rapidity separation.Comment: 4 pages, 2 figures, proceedings of Physics at LHC 2012, 4-9 June
2012, UBC, Vancouver, B
Symmetric differentials on complex hyperbolic manifolds with cusps
Let be a logarithmic pair, and let be a singular metric on the
tangent bundle, smooth on the open part of . We give sufficient conditions
on the curvature of for the logarithmic and the standard cotangent bundles
to be big. As an application, we give a metric proof of the bigness of
logarithmic cotangent bundle on any toroidal compactification of a bounded
symmetric domain. Then, we use this singular metric approach to study the
bigness and the nefness of the standard tangent bundle in the more specific
case of the ball. We obtain effective ramification orders for a cover , \'{e}tale outside the boundary, to have all its
subvarieties with big cotangent bundle. We also prove that the standard tangent
bundle of such a cover is nef if the ramification is high enough. Moreover, the
ramification orders we obtain do not depend on the dimension of the quotient of
the ball we consider
Muon Spectrometer Phase-I Upgrade for the ATLAS Experiment: the New Small Wheel project
The instantaneous luminosity of the Large Hadron Collider at CERN will be
increased by up to a factor of five to seven with respect to the design value.
To maintain an excellent detection and background rejection capability in the
forward region of the ATLAS detector, part of the muon detection system will be
upgraded during LHC shutdown periods with the replacement of part of the
present first station in the forward regions with the so-called New Small
Wheels (NSWs). The NSWs will have a diameter of approximately 10 m and will be
made of two detector technologies: Micromegas and small-strip Thin Gap Chambers
(sTGC). The physics motivation for this significant upgrade to the ATLAS
detector will be presented. The design choices made to address the physics
needs will be discussed. Finally, the status of the production of the detector
modules will be presented.Comment: 10 pages, presented at CIPANP 201
An alternative to mode fitting
The space mission CoRoT provides us with a large amount of high-duty cycle
long-duration observations. Mode fitting has proven to be efficient for the
complete and detailed analysis of the oscillation pattern, but remains time
consuming. Furthermore, the photometric background due to granulation severely
complicates the analysis. Therefore, we attempt to provide an alternative to
mode fitting, for the determination of large separations. With the envelope
autocorrelation function and a dedicated filter, it is possible to measure the
variation of the large separation independently for the ridges with even and
odd degrees. The method appears to be as accurate as the mode fitting. It can
be very easily implemented and is very rapid.Comment: Proceedings of the 4th HELAS International Conference held in
Lanzarote, 201
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