Publications (42)
Technical Supplement to "Polarization Transfer Observables in Elastic Electron-Proton Scattering at Q = 2.5, 5.2, 6.8, and 8.5 GeV"
A. J. R. Puckett, E. J. Brash, M. K. Jones +103
The GEp-III and GEp-2 experiments, carried out in Jefferson Lab's Hall C from 2007-2008, consisted of measurements of polarization transfer in elastic electron-proton scatterin…
UV to IR SEDs of UV selected galaxies in the ELAIS fields: evolution of dust attenuation and star formation activity from z=0.7 to z=0.2
J. Iglesias-Paramo, V. Buat, J. Hernandez-Fernandez +34
We study the ultraviolet to far-infrared (hereafter UV-to-IR) SEDs of a sample of intermediate redshift (0.2 < z < 0.7) UV-selected galaxies from the ELAIS-N1 and ELAIS-N2 fields b…
Chemical efficiency of reactive microflows with heterogeneus catalysis: a lattice Boltzmann study
S. Succi, A. Gabrielli, G. Smith +1
We investigate the effects of geometrical micro-irregularities on the conversion efficiency of reactive flows in narrow channels of millimetric size. Three-dimensional simulations,…
Deuteron Electro-Disintegration at Very High Missing Momenta
W. U. Boeglin, M. K. Jones, K. Aniol +26
We propose to measure the D(e,e'p) cross section at (GeV/c) and for missing momenta ranging from GeV/c to GeV/c expanding t…
Backward-angle Exclusive pi0 Production above the Resonance Region
W. B. Li, G. M. Huber, J. R. Stevens +59
The proposed measurement is a dedicated study of the exclusive electroproduction process,1H(e,e'p)pi0, in the backward-angle regime (u-channel process) above the resonance region.…
Recoil Polarization Measurements of the Proton Electromagnetic Form Factor Ratio to Q^2 = 8.5 GeV^2
A. J. R. Puckett, E. J. Brash, M. K. Jones +103
Among the most fundamental observables of nucleon structure, electromagnetic form factors are a crucial benchmark for modern calculations describing the strong interaction dynamics…
The proton and deuteron F_2 structure function at low Q^2
V. Tvaskis, J. Arrington, R. Asaturyan +27
Measurements of the proton and deuteron structure functions are presented. The data, taken at Jefferson Lab Hall C, span the four-momentum transfer range G…
Distinguishing Local and Global Influences on Galaxy Morphology: An HST Comparison of High and Low X-ray Luminosity Clusters
Michael Balogh, Ian Smail, R. Bower +6
(Abridged) We present a morphological analysis of 17 X-ray selected clusters at z~0.25, imaged uniformly with HST WFPC2. Eight of these clusters have low X-ray luminosities (<10^{4…
Benchmarking and Implementation of Probability-Based Simulations on Programmable Graphics Cards
S. Tomov, M. McGuigan, R. Bennett +2
The latest Graphics Processing Units (GPUs) are reported to reach up to 200 billion floating point operations per second (200 Gflops) and to have price performance of 0.1 cents per…
Substructure in the Globular Cluster System of the Milky Way
A. Burkert, G. Smith
The kinematical and spatial properties of the metal-rich globular clusters in the Galaxy ([Fe/H] > -0.8) indicates that these objects do not comprise a homogeneous population. Thre…
Dark matter search in a Beam-Dump eXperiment (BDX) at Jefferson Lab: an update on PR12-16-001
M. Battaglieri, A. Bersani, G. Bracco +123
This document is an update to the proposal PR12-16-001 Dark matter search in a Beam-Dump eXperiment (BDX) at Jefferson Lab submitted to JLab-PAC44 in 2016 reporting progress in add…
The Qweak Experiment: A Search for New Physics at the TeV Scale via a Measurement of the Proton's Weak Charge
R. D. Carlini, J. M. Finn, S. Kowalski +83
We propose a new precision measurement of parity-violating electron scattering on the proton at very low Q^2 and forward angles to challenge predictions of the Standard Model and s…
Gap states in insulating LaMnPOF (x = 0 - 0.3)
J. W. Simonson, K. Post, C. Marques +4
Infrared transmission and electrical resistivity measurements reveal that single crystals of LaMnPOF (x 0.28) are insulating. The optical gap obtained from tra…
Search for effects beyond the Born approximation in polarization transfer observables in elastic scattering
M. Meziane, E. J. Brash, R. Gilman +108
Intensive theoretical and experimental efforts over the past decade have aimed at explaining the discrepancy between data for the proton electric to magnetic form factor ratio, $G_…
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…
Simulation of McKean Vlasov SDEs with super linear growth
G. dos Reis, S. Engelhardt, G. Smith
We present two fully probabilistic Euler schemes, one explicit and one implicit, for the simulation of McKean-Vlasov Stochastic Differential Equations (MV-SDEs) with drifts of supe…
Observation of the Helium 7 Lambda hypernucleus by the (e,e'K+) reaction
S. N. Nakamura, A. Matsumura, Y. Okayasu +90
An experiment with a newly developed high-resolution kaon spectrometer (HKS) and a scattered electron spectrometer with a novel configuration was performed in Hall C at Jefferson L…
Revealing Color Forces with Transverse Polarized Electron Scattering
W. Armstrong, H. Kang, A. Liyanage +101
The Spin Asymmetries of the Nucleon Experiment (SANE) measured two double spin asymmetries using a polarized proton target and polarized electron beam at two beam energies, 4.7 GeV…
Design and Performance of the Spin Asymmetries of the Nucleon Experiment
J. D. Maxwell, W. R. Armstrong, S. Choi +102
The Spin Asymmetries of the Nucleon Experiment (SANE) performed inclusive, double-polarized electron scattering measurements of the proton at the Continuous Electron Beam Accelerat…
The Cryogenic Target for the G Experiment at Jefferson Lab
S. D. Covrig, E. J. Beise, R. Carr +9
A cryogenic horizontal single loop target has been designed, built, tested and operated for the G experiment in Hall C at Jefferson Lab. The target cell is 20 cm long, the loop…
Polarization Transfer Observables in Elastic Electron Proton Scattering at 2.5, 5.2, 6.8, and 8.5 GeV
A. J. R. Puckett, E. J. Brash, M. K. Jones +104
The GEp-III and GEp-2 experiments were carried out in Jefferson Lab's (JLab's) Hall C from 2007-2008, to extend the knowledge of to the highest practically achiev…
Performance of AAOmega: the AAT multi-purpose fibre-fed spectrograph
R. Sharp, W. Saunder, G. Smith +11
AAOmega is the new spectrograph for the 2dF fibre-positioning system on the Anglo-Australian Telescope. It is a bench-mounted, double-beamed design, using volume phase holographic…
Probing Quark-Gluon Interactions with Transverse Polarized Scattering
K. Slifer, O. A. Rondon, A. Aghalaryan +69
We have extracted QCD matrix elements from our data on double polarized inelastic scattering of electrons on nuclei. We find the higher twist matrix element \tilde{d_2}, which aris…
Quasielastic Asymmetry in the Threshold Region
M. Nycz, W. Armstrong, T. Averett +97
A measurement of the double-spin asymmetry from electron-He scattering in the threshold region of two- and three-body breakup of He was performed at Jefferson Lab, for…
Dark matter search in a Beam-Dump eXperiment (BDX) at Jefferson Lab -- 2018 update to PR12-16-001
M. Battaglieri, A. Bersani, G. Bracco +122
This document complements and completes what was submitted last year to PAC45 as an update to the proposal PR12-16-001 "Dark matter search in a Beam-Dump eXperiment (BDX)" at Jeffe…
Precision measurements of of the proton and the deuteron with 6 GeV electrons
Y. Prok, P. Bosted, N. Kvaltine +160
The inclusive polarized structure functions of the proton and deuteron, g1p and g1d, were measured with high statistical precision using polarized 6 GeV electrons incident on a pol…
Remarkable Disk and Off-nuclear Starburst Activity in the "Tadpole Galaxy" as revealed by the Spitzer Space Telescope
T. H. Jarrett, M. Polletta, I. P. Fournon +20
We present ground-based optical and Spitzer infrared imaging observations of the interacting galaxy UGC 10214, the "Tadpole Galaxy" (z = 0.0310), focusing on the star formation act…
Harnessing electro-optic correlations in an efficient mechanical converter
A. P. Higginbotham, P. S. Burns, M. D. Urmey +6
An optical network of superconducting quantum bits (qubits) is an appealing platform for quantum communication and distributed quantum computing, but developing a quantum-compatibl…
Proton Form Factor Ratio, from Double Spin Asymmetry
A. Liyanage, W. Armstrong, H. Kang +97
The ratio of the electric and magnetic form factor of the proton, , has been measured for elastic electron-proton scattering with polarized beam and target up to…
Polarization Transfer in Wide-Angle Compton Scattering and Single-Pion Photoproduction from the Proton
C. Fanelli, E. Cisbani, D. J. Hamilton +65
Wide-angle exclusive Compton scattering and single-pion photoproduction from the proton have been investigated via measurement of the polarization transfer from a circularly polari…
Hypernuclear Spectroscopy using the (e,e'K+) Reaction
L. Yuan, M. Sarsour, T. Miyoshi +63
A pioneering experiment in Lambda hypernuclear spectroscopy, undertaken at the Thomas Jefferson National Accelerator Facility (Jlab), was recently reported. The experiment used the…
Spectroscopic identifications of Spitzer sources in the SWIRE/XMM-NEWTON/ELAIS-S1 field: a large fraction of Active Galactic Nuclei with high F(24micron)/F(R) ratio
N. Sacchi, F. La Franca, C. Feruglio +20
We present a catalog of optical spectroscopic identifications of sources detected by Spitzer at 3.6 or 24 micron down to 10 and 280 microJy, respectively, in the SWIRE/XMM-Newton/E…
Protected Fe valence in quasi-two dimensional -FeSi
W. Miiller, J. M. Tomczak, J. W. Simonson +3
We report the first comprehensive study of the high temperature form (-phase) of iron disilicide. Measurements of the magnetic susceptibility, magnetization, heat capacity and…
Polarization components in photoproduction at photon energies up to 5.6 GeV
W. Luo, E. J. Brash, R. Gilman +107
We present new data for the polarization observables of the final state proton in the reaction. These data can be used to test predictions based on ha…
New Measurements of the Deuteron to Proton F2 Structure Function Ratio
Debaditya Biswas, Fernando Araiza Gonzalez, William Henry +89
Nucleon structure functions, as measured in lepton-nucleon scattering, have historically provided a critical observable in the study of partonic dynamics within the nucleon. Howeve…
Working group on and N interactions - Summary
Ulf-G. MeiÃner, Martin Sevior, A. Badertscher +16
This is the summary of the working group on and N interactions of the Chiral Dynamics Workshop in Mainz, September 1-5, 1997. Each talk is represented by an extended one…
From antiferromagnetic insulator to correlated metal in pressurized and doped LaMnPO
J. W. Simonson, Z. P. Yin, M. Pezzoli +17
Widespread adoption of superconducting technologies requires the discovery of new materials with enhanced properties, especially higher superconducting transition temperatures T$_{…
4MOST: Project overview and information for the First Call for Proposals
R. S. de Jong, O. Agertz, A. Agudo Berbel +335
We introduce the 4-metre Multi-Object Spectroscopic Telescope (4MOST), a new high-multiplex, wide-field spectroscopic survey facility under development for the four-metre-class Vis…
The experiments with the High Resolution Kaon Spectrometer at JLab Hall C and the new spectroscopy of hypernuclei
L. Tang, C. Chen, T. Gogami +130
Since the pioneering experiment, E89-009 studying hypernuclear spectroscopy using the reaction was completed, two additional experiments, E01-011 and E05-115, w…
The star-formation histories of elliptical galaxies across the fundamental plane
Louisa A. Nolan, J. S. Dunlop, B. Panter +3
We present the first results from a study designed to test whether, given high-quality spectrophotometry spanning the mid-UV--optical wavelength regime, it is possible to distingui…
Dark matter search in a Beam-Dump eXperiment (BDX) at Jefferson Lab
M. Battaglieri, A. Bersani, B. Caiffi +101
MeV-GeV dark matter (DM) is theoretically well motivated but remarkably unexplored. This proposal presents the MeV-GeV DM discovery potential for a 1 m segmented CsI(Tl)…
Proton Spin Structure in the Resonance Region
RSS Collaboration, F. R. Wesselmann, K. Slifer +70
We have examined the spin structure of the proton in the region of the nucleon resonances (1.085 GeV < W < 1.910 GeV) at an average four momentum transfer of Q^2 = 1.3 GeV^2. Using…