Publications (13)
Flux through a hole from a shaken granular medium
K. Chen, M. B. Stone, R. Barry +7
We have measured the flux of grains from a hole in the bottom of a shaken container of grains. We find that the peak velocity of the vibration, vmax, controls the flux, i.e., the f…
Herschel/HIFI observations of interstellar OH+ and H2O+ towards W49N: a probe of diffuse clouds with a small molecular fraction
D. A. Neufeld, J. R. Goicoechea, P. Sonnentrucker +50
We report the detection of absorption by interstellar hydroxyl cations and water cations, along the sight-line to the bright continuum source W49N. We have used Herschel's HIFI ins…
Transition from ion-coupled to electron-only reconnection: Basic physics and implications for plasma turbulence
P. Sharma Pyakurel, M. A. Shay, T. D. Phan +9
Using kinetic particle-in-cell (PIC) simulations, we simulate reconnection conditions appropriate for the magnetosheath and solar wind, i.e., plasma beta (ratio of gas pressure to…
Trapping in irradiated p-on-n silicon sensors at fluences anticipated at the HL-LHC outer tracker
W. Adam, T. Bergauer, M. Dragicevic +682
The degradation of signal in silicon sensors is studied under conditions expected at the CERN High-Luminosity LHC. 200 m thick n-type silicon sensors are irradiated with proton…
Interstellar OH+, H2O+ and H3O+ along the sight-line to G10.6-0.4
Maryvonne Gerin, M. De Luca, John Black +50
We report the detection of absorption lines by the reactive ions OH+, H2O+ and H3O+ along the line of sight to the submillimeter continuum source G10.60.4 (W31C). We used the He…
Validation of Kalman Filter alignment algorithm with cosmic-ray data using a CMS silicon strip tracker endcap
D. Sprenger, M. Weber, R. Adolphi +6
A Kalman Filter alignment algorithm has been applied to cosmic-ray data. We discuss the alignment algorithm and an experiment-independent implementation including outlier rejection…
Starting to move through a granular medium
D. J. Costantino, T. J. Scheidemantel, M. B. Stone +5
We explore the process of initiating motion through a granular medium by measuring the force required to push a flat circular plate upward from underneath the medium. In contrast t…
Unveiling plasma energization and energy transport in the Earth Magnetospheric System: the need for future coordinated multiscale observations
A. Retino, L. Kepko, H. Kucharek +31
Energetic plasma is everywhere in the Universe. The terrestrial Magnetospheric System is a key case where direct measures of plasma energization and energy transport can be made in…
Observation of the rare decay from the combined analysis of CMS and LHCb data
The CMS, LHCb Collaborations, : +2807
A joint measurement is presented of the branching fractions and in proton-proton collisions at the LHC by the CMS and LHCb experiments. The data…
Coplanar stripline antenna design for optically detected magnetic resonance on semiconductor quantum dots
F. Klotz, H. Huebl, D. Heiss +3
We report on the development and testing of a coplanar stripline antenna that is designed for integration in a magneto-photoluminescence experiment to allow coherent control of ind…
Enabling Technologies for Silicon Microstrip Tracking Detectors at the HL-LHC
C. Barth, C. A. Betancourt, I. Bloch +38
While the tracking detectors of the ATLAS and CMS experiments have shown excellent performance in Run 1 of LHC data taking, and are expected to continue to do so during LHC operati…
Packing grains by thermally cycling
K. Chen, J. Cole, C. Conger +5
One of the oldest and most intriguing problems in the handling of materials is how a collection of solid grains packs together. While granular packing is normally determined by how…
Test Beam Performance Measurements for the Phase I Upgrade of the CMS Pixel Detector
M. Dragicevic, M. Friedl, J. Hrubec +481
A new pixel detector for the CMS experiment was built in order to cope with the instantaneous luminosities anticipated for the Phase~I Upgrade of the LHC. The new CMS pixel detecto…