D. Walter
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Annealing behaviour of charge collection of neutron irradiated diodes from 8-inch p-type silicon wafers Open
To face the higher levels of radiation due to the 10-fold increase in integrated luminosity during the High-Luminosity LHC, the CMS detector will replace the current Calorimeter Endcap (CE) using the High-Granularity Calorimeter (HGCAL) co…
View article: SubMIT: A Physics Analysis Facility at MIT
SubMIT: A Physics Analysis Facility at MIT Open
The recently completed SubMIT platform is a small set of servers that provide interactive access to substantial data samples at high speeds, enabling sophisticated data analyses with very fast turnaround times. Additionally, it seamlessly …
Proton Quenching in Rare-Earth Inorganic Scintillators: GAGG:Ce and YSO:Ce Open
Scintillator detectors are an integral component of radiation detection systems for a variety of applications such as medical imaging, accelerator diagnostics, and space science. Typically, a scintillator detector’s response is characteriz…
Run3 Performance of new hardware in CMS Open
This report summarizes the upgrades of the CMS experiment at the LHC for the run 3 data taking, that started in 2022. Subdetectors, such as the silicon tracker, hadronic calorimeter, and muon system, are adapted to cope with increased part…
Inclusive and differential results of top quark pair production from the ATLAS and CMS experiments Open
This report summarizes recent results of inclusive and differential $\mathrm{t\bar{t}}$ cross section measurements from the ATLAS and CMS Collaborations at the LHC. Measurements at $\sqrt{s}=7,\ 8,\ 13$, and $13.6\,$TeV are compared to sta…
Temperature and dopant concentration effects on proton light quenching in rare-earth inorganic scintillators [Slides] Open
Rare-earth inorganic scintillators have characteristics that offer optimal detection qualities for space applications as long a quenching is considered; Incident proton and electron response was measured in four different rare-earth inorga…
Energy Characterization of the UMD Electron Accelerator Open
Multiple different groups at Los Alamos National Laboratory have a cited interest in understanding the effects of ionizing radiation in materials. Of especial interest to the ISR division is understanding the effects in materials that are …
Adaptive Block Floating-Point for Analog Deep Learning Hardware Open
Analog mixed-signal (AMS) devices promise faster, more energy-efficient deep neural network (DNN) inference than their digital counterparts. However, recent studies show that DNNs on AMS devices with fixed-point numbers can incur an accura…
Measurement of top-quark electroweak couplings in associated top quark production with vector bosons at the ATLAS and CMS experiments Open
Recent analyses of top quark production in association with vector bosons are summarized, representing the most precise inclusive and differential cross section measurements of these processes to date. Proton-proton collision data at a cen…
Rare top quark production in CMS Open
Latest results from the CMS experiment at the LHC on top quark production in association with a Z boson or a photon, and the production of four top quarks, are summarized. Proton-proton collision data corresponding to an integrated luminos…
Measurement of top-quark electroweak couplings in associated top quark production with vector bosons at the ATLAS and CMS experiments Open
Recent analyses of top quark production in association with vector bosons are summarized, representing the most precise inclusive and differential cross section measurements of these processes to date. Proton-proton collision data at a cen…
View article: First Direct Measurement of an Astrophysical <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>p</mml:mi></mml:math>-Process Reaction Cross Section Using a Radioactive Ion Beam
First Direct Measurement of an Astrophysical -Process Reaction Cross Section Using a Radioactive Ion Beam Open
We have performed the first direct measurement of the ^{83}Rb(p,γ) radiative capture reaction cross section in inverse kinematics using a radioactive beam of ^{83}Rb at incident energies of 2.4 and 2.7A MeV. The measured cross section at a…
View article: Using 19F(3He,t)19Ne*(γ) to study astrophysically important levels near the 18F+p threshold
Using 19F(3He,t)19Ne*(γ) to study astrophysically important levels near the 18F+p threshold Open
A direct test of nova explosion models comes from the observation of γ rays created in the decay of radioactive isotopes produced in the nova. One such isotope, 18F, is believed to be the main source of observable γ rays at and below 511 k…
Microarthropods in australian sugarcane soils: A survey with emphasis on the Mesostigmata as potential regulators of nematode populations Open
Sugarcane is attacked by a suite of nematode pests, but little is known of the mites and other soil microarthropods that feed on them. To address this deficit, we undertook a survey of the soil microarthropod fauna in 60 sugarcane fields i…
Spectroscopic factors near the r-process path using combined measurements Open
Modern nuclear structure models suggest that the shell structure near the valley of stability, with well-established shell closures at N=50, for example, changes in very neutron-rich nuclei far from stability. Single-particle properties of…
Toward Measuring Prompt Fission Products in Coincidence Open
Despite the discovery of fission nearly 80 years ago and its importance to nuclear energy, national security, and astrophysics, there are very few measurements of the correlations between multiple fission products. An experiment is underwa…
View article: X-ray Burst Studies with the JENSA Gas Jet Target
X-ray Burst Studies with the JENSA Gas Jet Target Open
Astrophysical (α,p) reactions play an important role in X-ray burst nucleosynthesis.We performed the first direct measurement of the 34 Ar(α,p) 37 K reaction using a radioactive 34 Ar beam at the National Superconducting Cyclotron Laborato…
The effect of manufacturing conditions on discontinuity population and fatigue fracture behavior in carbon/epoxy composites Open
Carbon fiber composites have been increasingly used in aerospace, military, sports, automotive and other fields due to their excellent properties, including high specific strength, high specific modulus, corrosion resistance, fatigue resis…
Direct Reaction Measurements Using GODDESS Open
GODDESS is a coupling of the charged-particle detection system ORRUBA to the gamma-ray detector array Gammasphere. This coupling has been developed in order to facilitate the high-resolution measurement of direct reactions in normal and in…
View article: X-ray burst studies with the JENSA gas jet target
X-ray burst studies with the JENSA gas jet target Open
\nWhen a neutron star accretes hydrogen and helium from the outer layers of its companion star, thermonuclear burning enables the αp-process as a break out mechanism from the hot CNO cycle. Model calculations predict (α, p) reaction rates …
The Mesostigmatid Mite <i>Protogamasellus mica</i>, an Effective Predator of Free-Living and Plant-Parasitic Nematodes Open
Protogamasellus mica was extracted from a sugarcane field in Australia and cultured on bacterial-feeding nematodes. Studies with various nematodes in laboratory arenas showed that one mite and its progeny reduced nematode numbers by betwee…
Correlating Interlaminar Fatigue Fracture Behavior to NDE Parameters in Carbon/Epoxy Composites Containing Voids and Delamination Open
Carbon fiber composites have been increasingly used in aerospace, military, sports, automotive and other fields due to their excellent properties, including high specific strength, high specific modulus, corrosion resistance, fatigue resis…