activity
19982024
most citedThe ratio of proton's electric to magnetic form factors measured by polarization transfer

735 citations · 7.7k across the 104 of their papers we have counts for

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70 papers · 1 filter

nucl-ex2024

The 3He(\vec n,p)3H parity-conserving asymmetry

M. Viviani, S. Baeßler, L. Barrón-Palos +28

Recently, the nHe collaboration reported a measurement of the parity-violating (PV) proton directional asymmetry $A_{\mathrm {PV}} = (1.55\pm 0.97~\mathrm {(st\ at)} \pm 0.24~\…

nucl-ex2022★ 1 cited

Measurement of the Parity-Odd Angular Distribution of Gamma Rays From Polarized Neutron Capture on Cl

N. Fomin, R. Alarcon, L. Alonzi +61

We report a measurement of two energy-weighted gamma cascade angular distributions from polarized slow neutron capture on the Cl nucleus, one parity-odd correlation propor…

nucl-ex2020★ 9 cited

Measurement of the Charge-Averaged Elastic Lepton-Proton Scattering Cross Section by the OLYMPUS Experiment

J. C. Bernauer, A. Schmidt, B. S. Henderson +67

We report the first measurement of the average of the electron-proton and positron-proton elastic scattering cross sections. This lepton charge-averaged cross section is insensitiv…

nucl-ex2020★ 16 cited

First Precision Measurement of the Parity Violating Asymmetry in Cold Neutron Capture on He

n3He Collaboration, M. T. Gericke, S. Baeßler +26

We report the first precision measurement of the parity-violating asymmetry in the direction of proton emission with respect to the neutron spin, in the reaction $^{3}\mathrm{He}(\…

nucl-ex2020★ 1 cited

The nHe Experiment: Parity Violation in Polarized Neutron Capture on He

n3He Collaboration, M. McCrea, M. L. Kabir +26

Significant progress has been made to experimentally determine a complete set of the parity-violating (PV) weak-interaction amplitudes between nucleons. In this paper we describe t…

nucl-ex2018★ 27 cited

The Nab Experiment: A Precision Measurement of Unpolarized Neutron Beta Decay

J. Fry, R. Alarcon, S. Baessler +69

Neutron beta decay is one of the most fundamental processes in nuclear physics and provides sensitive means to uncover the details of the weak interaction. Neutron beta decay can e…

nucl-ex2018★ 43 cited

First Observation of -odd Asymmetry in Polarized Neutron Capture on Hydrogen

D. Blyth, J. Fry, N. Fomin +61

We report the first observation of the parity-violating 2.2 MeV gamma-ray asymmetry in neutron-proton capture using polarized cold neutrons incident on a liquid parahydr…

nucl-ex2018★ 6 cited

Dispersive Corrections to the Born Approximation in Elastic Electron-Nucleus Scattering in the Intermediate Energy Regime

P. Gueye, A. A. Kabir J. Glister, B. W. Lee +89

Measurements of elastic electron scattering data within the past decade have highlighted two-photon exchange contributions as a necessary ingredient in theoretical calculations to…

nucl-ex2017★ 1 cited

Measurement of the Vector and Tensor Asymmetries at Large Missing Momentum in Quasielastic Electron Scattering from Deuterium

A. DeGrush, A. Maschinot, T. Akdogan +41

We report the measurement of the beam-vector and tensor asymmetries and in quasielastic electrodisintegration of the deuteron at the MIT…

nucl-ex2016★ 100 cited

Hard Two-Photon Contribution to Elastic Lepton-Proton Scattering: Determined by the OLYMPUS Experiment

B. S. Henderson, L. D. Ice, D. Khaneft +67

The OLYMPUS collaboration reports on a precision measurement of the positron-proton to electron-proton elastic cross section ratio, , a direct measure of the contribution o…

nucl-ex2014★ 44 cited

New measurement of the scattering cross section of slow neutrons on liquid parahydrogen from neutron transmission

K. B. Grammer, R. Alarcon, L. Barrón-Palos +25

Liquid hydrogen is a dense Bose fluid whose equilibrium properties are both calculable from first principles using various theoretical approaches and of interest for the understand…

nucl-ex2012★ 13 cited

Neutron Beta Decay Studies with Nab

S. Baeßler, R. Alarcon, L. P. Alonzi +31

Precision measurements in neutron beta decay serve to determine the coupling constants of beta decay and allow for several stringent tests of the standard model. This paper discuss…

nucl-ex2012★ 23 cited

Virtual Compton Scattering and the Generalized Polarizabilities of the Proton at Q^2=0.92 and 1.76 GeV^2

H. Fonvieille, G. Laveissiere, N. Degrande +161

Virtual Compton Scattering (VCS) on the proton has been studied at Jefferson Lab using the exclusive photon electroproduction reaction (e p --> e p gamma). This paper gives a detai…

nucl-ex2011★ 105 cited

Low Q^2 measurements of the proton form factor ratio

G. Ron, X. Zhan, J. Glister +84

We present an updated extraction of the proton electromagnetic form factor ratio, mu_p G_E/G_M, at low Q^2. The form factors are sensitive to the spatial distribution of the proton…

nucl-ex2011★ 175 cited

Final Analysis of Proton Form Factor Ratio Data at , 4.8 and 5.6 GeV

A. J. R. Puckett, E. J. Brash, O. Gayou +71

Precise measurements of the proton electromagnetic form factor ratio using the polarization transfer method at Jefferson Lab have revolutionized the understan…

nucl-ex2010★ 136 cited

Measurements of the Electric Form Factor of the Neutron up to Q2=3.4 GeV2 using the Reaction He3(e,e'n)pp

S. Riordan, S. Abrahamyan, B. Craver +115

The electric form factor of the neutron was determined from studies of the reaction He3(e,e'n)pp in quasi-elastic kinematics in Hall A at Jefferson Lab. Longitudinally polarized el…

nucl-ex2010★ 6 cited

Polarization Observables in Deuteron Photodisintegration below 360 MeV

J. Glister, G. Ron, B. W. Lee +86

High precision measurements of induced and transferred recoil proton polarization in d(polarized gamma, polarized p})n have been performed for photon energies of 277--357 MeV and t…

nucl-ex2009★ 1 cited

A measurement of the differential cross section for the two-body photodisintegration of 3He at theta_LAB = 90deg using tagged photons in the energy range 14 -- 31 MeV

M. Karlsson, J. -O. Adler, L. E. M. Andersson +22

The two-body photodisintegration of 3He has been investigated using tagged photons with energies from 14 -- 31 MeV at MAX-lab in Lund, Sweden. The two-body breakup channel was unam…

nucl-ex2008

Virtual Compton Scattering and Neutral Pion Electroproduction in the Resonance Region up to the Deep Inelastic Region at Backward Angles

G. Laveissière

We have made the first measurements of the virtual Compton scattering (VCS) process via the H exclusive reaction in the nucleon resonance region, at backward angles. Resu…

nucl-ex2008★ 103 cited

A Precise Measurement of the Neutron Magnetic Form Factor GMn in the Few-GeV2 Region

J. Lachniet, A. Afanasev, H. Arenhövel +5

The neutron elastic magnetic form factor GMn has been extracted from quasielastic electron scattering data on deuterium with the CEBAF Large Acceptance Spectrometer (CLAS) at Jeffe…

nucl-ex2008★ 4 cited

Measurement of the Partial Cross Sections s(TT), s(LT) and [s(T)+epsilon*s(L)] of the p(e,e' pi+)n Reaction in the Delta(1232) Resonance

J. M. Kirkpatrick, N. F. Sparveris

We report new precision p(e,e' pi+})n measurements in the Delta(1232) resonance at Q2 = 0.127(GeV/c)2 obtained at the MIT-Bates Out-Of-Plane scattering facility. These are the lowe…

nucl-ex2008★ 65 cited

Nab: Measurement Principles, Apparatus and Uncertainties

D. Pocanic, R. Alarcon, L. P. Alonzi +23

The Nab collaboration will perform a precise measurement of 'a', the electron-neutrino correlation parameter, and 'b', the Fierz interference term in neutron beta decay, in the Fun…

nucl-ex2008★ 38 cited

Electroproduction of p π^{+} π^{-} off protons at 0.2<Q^{2}<0.6 GeV^{2} and 1.3<W<1.57 GeV with CLAS

G. V. Fedotov, V. I. Mokeev, V. D. Burkert +5

This paper reports on the most comprehensive data set obtained on differential and fully integrated cross sections for the process . The data were collec…

nucl-ex2008★ 78 cited

The Charge Form Factor of the Neutron at Low Momentum Transfer from the Reaction

E. Geis, V. Ziskin, T. Akdogan +45

We report new measurements of the neutron charge form factor at low momentum transfer using quasielastic electrodisintegration of the deuteron. Longitudinally polarized electrons a…