5,188 research outputs found
Measurements of CKM parameters at the B factories
In the past 10 years our knowledge of the elements of the Cabibbo-Kobayashi-Maskawa matrix has improved substantially. This article reviews some of the many contributions from the B factories to this progress, and discusses their implication in terms of understanding CP violation in the Standard Model and beyond
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How well do we know the Unitarity Triangle? An experimental review
In the past 10 years our knowledge of the parameters rho and eta of the Cabibbo-Kobayashi-Maskawa matrix has improved substantially. This article reviews the measurements that contributed to this advance, and discusses their implication in terms of understanding CP violation in the Standard Model and beyond
Gaseous Dark Matter Detectors
Dark Matter detectors with directional sensitivity have the potential of
yielding an unambiguous positive observation of WIMPs as well as discriminating
between galactic Dark Matter halo models. In this article, we introduce the
motivation for directional detectors, discuss the experimental techniques that
make directional detection possible, and review the status of the experimental
effort in this field.Comment: 19 pages, review on gaseous directional dark matter detectors
submitted to New Journal of Physic
Data acquisition electronics and reconstruction software for directional detection of Dark Matter with MIMAC
Directional detection of galactic Dark Matter requires 3D reconstruction of
low energy nuclear recoils tracks. A dedicated acquisition electronics with
auto triggering feature and a real time track reconstruction software have been
developed within the framework of the MIMAC project of detector. This
auto-triggered acquisition electronic uses embedded processing to reduce data
transfer to its useful part only, i.e. decoded coordinates of hit tracks and
corresponding energy measurements. An acquisition software with on-line
monitoring and 3D track reconstruction is also presented.Comment: 17 pages, 12 figure
A Measurement of Photon Production in Electron Avalanches in CF4
This paper presents a measurement of the ratio of photon to electron
production and the scintillation spectrum in a popular gas for time pro jection
chambers, carbon tetrafluoride (CF4), over the range of 200 to 800 nm; the
ratio is measured to be 0.34+/-0.04. This result is of particular importance
for a new generation of dark matter time projection chambers with directional
sensitivity which use CF4 as a fill gas.Comment: 19 pages, including appendix. 8 figure
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