scholarly journals Measurement of the low-energy germanium quenching factor with a small-mass detector.

2018 ◽  
Author(s):  
Belkis Cabrera-Palmer
Keyword(s):  
Small Mass ◽  
Low Energy ◽  
Quenching Factor ◽  
Mass Detector

scholarly journals Measurement of the low-energy quenching factor in germanium using anY88/Bephotoneutron source

2016 ◽  
Vol 94 (12) ◽  
Author(s):  
B. J. Scholz ◽  
A. E. Chavarria ◽  
J. I. Collar ◽  
P. Privitera ◽  
A. E. Robinson
Keyword(s):  
Low Energy ◽  
Quenching Factor ◽  
Energy Quenching

Measuring the Low Energy Nuclear Quenching Factor in Liquid Argon for a Coherent Neutrino Scatter Detector

2012 ◽  
Vol 229-232 ◽  
pp. 512
Author(s):  
M. Foxe ◽  
A. Bernstein ◽  
C. Hagmann ◽  
T. Joshi ◽  
I. Jovanovic ◽  
...  
Keyword(s):  
Liquid Argon ◽  
Low Energy ◽  
Quenching Factor

scholarly journals Constraints on the U(1)L gauge boson in a wide mass range

2016 ◽  
Vol 31 (11) ◽  
pp. 1650059 ◽  
Author(s):  
Yu Seon Jeong ◽  
C. S. Kim ◽  
Hye-Sung Lee
Keyword(s):  
Standard Model ◽  
Gauge Boson ◽  
Mass Range ◽  
Small Mass ◽  
Low Energy ◽  
Gauge Bosons ◽  
Dark Photon ◽  
The Standard Model ◽  
Similarities And Differences ◽  
New Discovery

There is a growing interest for the search of new light gauge bosons. The small mass of a new boson can turn various kinds of low-energy experiments to a new discovery machine, depending on their couplings to the Standard Model particles. It is important to understand the properties of each type of gauge boson and their current constraints for a given mass. While the dark photon (which couples to the electric charges) and the [Formula: see text] gauge boson have been well studied in an extensive mass range, the [Formula: see text] gauge boson has not been fully investigated yet. We consider the gauge boson of the [Formula: see text] in a wide mass range [Formula: see text] and investigate the constraints on its coupling from various experiments, discussing the similarities and differences from the dark photon and the [Formula: see text] gauge boson.

scholarly journals Constraining electroweakinos in the minimal Dirac gaugino model

2020 ◽  
Vol 9 (4) ◽  
Author(s):  
Mark Goodsell ◽  
Sabine Kraml ◽  
Humberto Reyes-González ◽  
Sophie L. Williamson
Keyword(s):  
Standard Model ◽  
Supersymmetric Standard Model ◽  
Direct Detection ◽  
Small Mass ◽  
New Physics ◽  
Low Energy ◽  
Collider Phenomenology ◽  
Supersymmetric Models ◽  
Relic Abundance ◽  
Frequent Presence

Supersymmetric models with Dirac instead of Majorana gaugino masses have distinct phenomenological consequences. In this paper, we investigate the electroweakino sector of the Minimal Dirac Gaugino Supersymmetric Standard Model (MDGSSM) with regards to dark matter (DM) and collider constraints. We delineate the parameter space where the lightest neutralino of the MDGSSM is a viable DM candidate, that makes for at least part of the observed relic abundance while evading constraints from DM direct detection, LEP and low-energy data, and LHC Higgs measurements. The collider phenomenology of the thus emerging scenarios is characterised by the richer electroweakino spectrum as compared to the Minimal Supersymmetric Standard Model (MSSM) -6 neutralinos and 3 charginos instead of 4 and 2 in the MSSM, naturally small mass splittings, and the frequent presence of long-lived particles, both charginos and/or neutralinos. Reinterpreting ATLAS and CMS analyses with the help of SmodelS and MadAnalysis 5, we discuss the sensitivity of existing LHC searches for new physics to these scenarios and show which cases can be constrained and which escape detection. Finally, we propose a set of benchmark points which can be useful for further studies, designing dedicated experimental analyses and/or investigating the potential of future experiments.

An emittance–mass scanner for small‐mass, low‐energy beams

1996 ◽  
Vol 67 (3) ◽  
pp. 1275-1276 ◽  
Author(s):  
D. Yuan ◽  
K. Jayamanna ◽  
T. Kuo ◽  
M. McDonald ◽  
P. Schmor
Keyword(s):  
Small Mass ◽  
Low Energy

scholarly journals Quenching factor for low-energy nuclear recoils in a plastic scintillator

2012 ◽  
Vol 85 (6) ◽  
Author(s):  
L. Reichhart ◽  
D.Yu. Akimov ◽  
H. M. Araújo ◽  
E. J. Barnes ◽  
V. A. Belov ◽  
...  
Keyword(s):  
Plastic Scintillator ◽  
Low Energy ◽  
Quenching Factor ◽  
Nuclear Recoils

Studies on Water in the Hydration Chamber of a Modified Electron Microscope

1970 ◽  
Vol 28 ◽  
pp. 544-545
Author(s):  
R. C. Moretz ◽  
G. G. Hausner ◽  
D. F. Parsons
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Electron Microscope ◽  
Steady State ◽  
Room Temperature ◽  
Small Mass ◽  
Equilibrium Pressure ◽  
Biological Objects ◽  
Mechanical Pump ◽  
Differential Pumping

Use of the electron microscope to examine wet objects is possible due to the small mass thickness of the equilibrium pressure of water vapor at room temperature. Previous attempts to examine hydrated biological objects and water itself used a chamber consisting of two small apertures sealed by two thin films. Extensive work in our laboratory showed that such films have an 80% failure rate when wet. Using the principle of differential pumping of the microscope column, we can use open apertures in place of thin film windows.Fig. 1 shows the modified Siemens la specimen chamber with the connections to the water supply and the auxiliary pumping station. A mechanical pump is connected to the vapor supply via a 100μ aperture to maintain steady-state conditions.

Dissociated Σ=27 boundaries in silicon

1988 ◽  
Vol 46 ◽  
pp. 624-625
Author(s):  
A. Garg ◽  
W.A.T. Clark ◽  
J.P. Hirth
Keyword(s):  
Electron Diffraction ◽  
Local Minimum ◽  
Boundary Energy ◽  
Coincidence Site Lattice ◽  
Boundary Plane ◽  
Low Energy ◽  
Theoretical Understanding ◽  
Site Lattice ◽  
Kikuchi Pattern ◽  
Analysis Techniques

In the last twenty years, a significant amount of work has been done in the theoretical understanding of grain boundaries. The various proposed grain boundary models suggest the existence of coincidence site lattice (CSL) boundaries at specific misorientations where a periodic structure representing a local minimum of energy exists between the two crystals. In general, the boundary energy depends not only upon the density of CSL sites but also upon the boundary plane, so that different facets of the same boundary have different energy. Here we describe TEM observations of the dissociation of a Σ=27 boundary in silicon in order to reduce its surface energy and attain a low energy configuration.The boundary was identified as near CSL Σ=27 {255} having a misorientation of (38.7±0.2)°/[011] by standard Kikuchi pattern, electron diffraction and trace analysis techniques. Although the boundary appeared planar, in the TEM it was found to be dissociated in some regions into a Σ=3 {111} and a Σ=9 {122} boundary, as shown in Fig. 1.

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