Publications (41)
Deeply virtual Compton scattering off the neutron
M. Benali, C. Desnault, M. Mazouz +96
The three-dimensional structure of nucleons (protons and neutrons) is embedded in so-called generalized parton distributions, which are accessible from deeply virtual Compton scatt…
Rosenbluth separation of the Electroproduction Cross Section off the Neutron
M. Mazouz, Z. Ahmed, H. Albataineh +95
We report the first longitudinal/transverse separation of the deeply virtual exclusive electroproduction cross section off the neutron and coherent deuteron. The correspondi…
Rosenbluth separation of the electroproduction cross section
M. Defurne, M. Mazouz, H. Albataineh +91
We present deeply virtual electroproduction cross-section measurements at =0.36 and three different --values ranging from 1.5 to 2 GeV, obtained from experimen…
Beam dynamics corrections to the Run-1 measurement of the muon anomalous magnetic moment at Fermilab
T. Albahri, A. Anastasi, K. Badgley +174
This paper presents the beam dynamics systematic corrections and their uncertainties for the Run-1 data set of the Fermilab Muon g-2 Experiment. Two corrections to the measured muo…
A Precision Measurement of the Neutron Twist-3 Matrix Element : Probing Color Forces
M. Posik, D. Flay, D. S. Parno +89
Double-spin asymmetries and absolute cross sections were measured at large Bjorken (0.25 0.90), in both the deep-inelastic and resonance regions, by scattering lo…
Probing for high momentum protons in He via the reaction
S. Iqbal, F. Benmokhtar, M. Ivanov +107
Experimental cross sections for the reaction up to a missing momentum of 0.632 GeV/ at and =2(GeV/) are reported. The data are compared to…
Final Report on the Measurement of the Positive Muon Anomalous Magnetic Moment at Fermilab to 127 ppb
2 Collaboration, D. P. Aguillard, T. Albahri +192
This report details the final measurement of the muon magnetic anomaly, , by the Muon experiment at Fermi National Accelerator Laboratory (FNAL), using posit…
Precise Beam Energy Determination for Hall A after the CEBAF 12 GeV Upgrade
S. N. Santiesteban, L. Tracy, D. Flay +4
Precise and accurate measurements of the beam energy delivered to the experimental halls at the Thomas Jefferson Accelerator Facility (Jefferson Lab) is required by many experiment…
Measurement of double-polarization asymmetries in the quasi-elastic process
The Jefferson Lab Hall A Collaboration, M. MihoviloviÄ, G. Jin +96
We present a precise measurement of double-polarization asymmetries in the reaction. This particular process is a uniq…
Hall A Annual Report 2013
M. M. Dalton, K. Allada, K. Aniol +27
Report over the experimental activities in Hall A at Thomas Jefferson National Accelerator Facility during 2013.
Measurement of the Parity-Violating Asymmetry in Electron-Deuteron Scattering in the Nucleon Resonance Region
D. Wang, K. Pan, R. Subedi +95
We report on parity-violating asymmetries in the nucleon resonance region measured using GeV longitudinally polarized electrons scattering off an unpolarized deuterium targ…
Measurement of the Neutron Radius of 208Pb Through Parity-Violation in Electron Scattering
S. Abrahamyan, Z. Ahmed, H. Albataineh +132
We report the first measurement of the parity-violating asymmetry A_PV in the elastic scattering of polarized electrons from 208Pb. A_PV is sensitive to the radius of the neutron d…
Probing the Repulsive Core of the Nucleon-Nucleon Interaction via the 4He(e,e'pN) Triple-Coincidence Reaction
I. Korover N. Muangma, O. Hen, R. Shneor +115
We studied simultaneously the 4He(e,e'p), 4He(e,e'pp), and 4He(e,e'pn) reactions at Q^2=2 [GeV/c]2 and x_B>1, for a (e,e'p) missing-momentum range of 400 to 830 MeV/c. The knocked-…
Magnetic Field Measurement and Analysis for the Muon g-2 Experiment at Fermilab
T. Albahri, A. Anastasi, K. Badgley +170
The Fermi National Accelerator Laboratory has measured the anomalous precession frequency of the muon to a combined precision of 0.46 parts per million wit…
A Glimpse of Gluons through Deeply Virtual Compton Scattering on the Proton
M. Defurne, A. Martì Jiménez-Argüello, Z. Ahmed +91
The proton is composed of quarks and gluons, bound by the most elusive mechanism of strong interaction called confinement. In this work, the dynamics of quarks and gluons are inves…
Detailed Report on the Measurement of the Positive Muon Anomalous Magnetic Moment to 0.20 ppm
D. P. Aguillard, T. Albahri, D. Allspach +190
We present details on a new measurement of the muon magnetic anomaly, . The result is based on positive muon data taken at Fermilab's Muon Campus during the 2019…
Virtual Compton Scattering measurements in the nucleon resonance region
A. Blomberg, H. Atac, N. Sparveris +25
We report on new measurements of the electric Generalized Polarizability (GP) of the proton in a kinematic region where a puzzling dependence on momentum transfer has been o…
Measurements of and : Probing the neutron spin structure
D. Flay, M. Posik, D. S. Parno +88
We report on the results of the E06-014 experiment performed at Jefferson Lab in Hall A, where a precision measurement of the twist-3 matrix element of the neutron ($d_{2}^{n…
Precision Measurements of in the Deep Inelastic Regime
D. S. Parno, D. Flay, M. Posik +89
We have performed precision measurements of the double-spin virtual-photon asymmetry on the neutron in the deep inelastic scattering regime, using an open-geometry, large-acc…
High-Accuracy Absolute Magnetometry with Application to the Fermilab Muon Experiment
D. Flay, D. Kawall, T. Chupp +10
We present details of a high-accuracy absolute scalar magnetometer based on pulsed proton NMR. The -field magnitude is determined from the precession frequency of proton spins i…
Hall A Annual Report 2012
S. Riordan, C. Keppel, K. Aniol +46
Report over the experimental activities in Hall A at Thomas Jefferson National Accelerator Facility.
New Measurements of the Transverse Beam Asymmetry for Elastic Electron Scattering from Selected Nuclei
The HAPPEX, PREX Collaborations, : +195
We have measured the beam-normal single-spin asymmetry in the elastic scattering of 1-3 GeV transversely polarized electrons from H and for the first time from He, $^…
Measuring short-range correlations and quasi-elastic cross sections in A(e,e') at x>1 and modest Q
Y. P. Zhang, Z. H. Ye, D. Nguyen +96
We present results from the Jefferson Lab E08-014 experiment, investigating short-range correlations (SRC) through measurements of inclusive quasi-elastic scattering from H, $^…
Measurement of the Positive Muon Anomalous Magnetic Moment to 0.20 ppm
D. P. Aguillard, T. Albahri, D. Allspach +188
We present a new measurement of the positive muon magnetic anomaly, , from the Fermilab Muon Experiment using data collected in 2019 and 2020. We…
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…
Measurement of the Positive Muon Anomalous Magnetic Moment to 0.46 ppm
B. Abi, T. Albahri, S. Al-Kilani +234
We present the first results of the Fermilab Muon g-2 Experiment for the positive muon magnetic anomaly . The anomaly is determined from the precision measur…
Measurement of the Positive Muon Anomalous Magnetic Moment to 127 ppb
The Muon $g-2$ Collaboration, :, D. P. Aguillard +193
A new measurement of the magnetic anomaly of the positive muon is presented based on data taken from 2020 to 2023 by the Muon Experiment at Fermi National Accelerator…
Search for three-nucleon short-range correlations in light nuclei
Z. Ye, P. Solvignon, D. Nguyen +100
We present new data probing short-range correlations (SRCs) in nuclei through the measurement of electron scattering off high-momentum nucleons in nuclei. The inclusive 4He/3He cro…
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…
Measurement of the Target-Normal Single-Spin Asymmetry in Quasi-Elastic Scattering from the Reaction He
Y. -W. Zhang, E. Long, M. MihoviloviÄ +89
We report the first measurement of the target single-spin asymmetry, , in quasi-elastic scattering from the inclusive reaction He on a He gas…
Measurement of Parity-Violating Asymmetry in Electron-Deuteron Inelastic Scattering
D. Wang, K. Pan, R. Subedi +98
The parity-violating asymmetries between a longitudinally-polarized electron beam and an unpolarized deuterium target have been measured recently. The measurement covered two kinem…
Measurement of double-polarization asymmetries in the quasi-elastic process
M. MihoviloviÄ, G. Jin, E. Long +99
We report on a precise measurement of double-polarization asymmetries in electron-induced breakup of proceeding to and final states, pe…
Extraction of the Neutron Electric Form Factor from Measurements of Inclusive Double Spin Asymmetries
V. Sulkosky, G. Jin, E. Long +89
Measurements of the neutron charge form factor, , are challenging due to the fact that the neutron has no net charge. In addition, measurements of the neutron…
Novel observation of isospin structure of short-range correlations in calcium isotopes
D. Nguyen, Z. Ye, P. Aguilera +101
Short Range Correlations (SRCs) have been identified as being responsible for the high momentum tail of the nucleon momentum distribution, n(k). Hard, short-range interactions of n…
Measurement of the single-spin asymmetry in quasi-elastic He() scattering at GeV
E. Long, Y. W. Zhang, M. Mihoviloviv +88
Due to the lack of free neutron targets, studies of the structure of the neutron are typically made by scattering electrons from either H or He targets. In order to extract…
Muon (g-2) Technical Design Report
J. Grange, V. Guarino, P. Winter +197
The Muon (g-2) Experiment, E989 at Fermilab, will measure the muon anomalous magnetic moment a factor-of-four more precisely than was done in E821 at the Brookhaven National Labora…
Design and performance of an in-vacuum, magnetic field mapping system for the Muon g-2 experiment
S. Corrodi, P. De Lurgio, D. Flay +6
The E989 Muon experiment at Fermilab aims to measure the anomalous magnetic moment, , of the muon with a precision of 140 parts-per-billion. This requires a precise…
An experimental program with high duty-cycle polarized and unpolarized positron beams at Jefferson Lab
A. Accardi, A. Afanasev, I. Albayrak +227
Positron beams, both polarized and unpolarized, are identified as essential ingredients for the experimental programs at the next generation of lepton accelerators. In the context…
Measurement of the anomalous precession frequency of the muon in the Fermilab Muon g-2 experiment
T. Albahri, A. Anastasi, A. Anisenkov +175
The Muon g-2 Experiment at Fermi National Accelerator Laboratory (FNAL) has measured the muon anomalous precession frequency to an uncertainty of 434 parts per billion (ppb)…
Electroexcitation of the at low momentum transfer
A. Blomberg, D. Anez, N. Sparveris +92
We report on new p measurements at the resonance at the low momentum transfer region. The mesonic cloud dynamics is predicted to be dominant…