X. Yan

The PRad windowless gas flow target

J. Pierce, J. Brock, C. Carlin, C. Keith et autres

us (code pays fourni par la source)

First measurement of the asymmetry and the Gerasimov-Drell-Hearn integrand from the He3(γ,p)H2 reaction at an incident photon energy of 29 MeV

G. Laskaris, Wei Ji, X. Yan, Jingyi Zhou et autres

The first measurement of the $\stackrel{P\vec}{^{3}\mathrm{He}}(\stackrel{P\vec}{\ensuremath{\gamma}},p)^{2}\mathrm{H}$ process was performed at the High Intensity $\ensuremath{\gamma}$-ray Source ($\mathrm{HI}\ensuremath{\gamma}\mathrm{S}$) facility at Triangle Universities Nuclear Laboratory using a circularly polarized, monoenergetic $\ensuremath{\gamma}$-ray beam and a longitudinally polarized $^{3}\mathrm{He}$ target. The spin-dependent asymmetry and the contribution from …

us, cn, pt, pl, in, de (code pays fourni par la source)

A small proton charge radius from an electron–proton scattering experiment

Weizhi Xiong, A. Gasparian, H. Gao, D. Dutta et autres

us, ua, ru, am (code pays fourni par la source)

Expression of Interest: Rare Eta Decays with a TPC for Optical Photons

Y. Alexahin, M. Backfish, Jishnu Dey, Bogdan A. Dobrescu et autres

The REDTOP experiment is primarily intended to look for new violations of basic symmetry principles and conservation laws in particle physics. Our main focus will be on very rare decays of the meson. From the Standard Model and other theories, such decays …

us, ca, ru, it (code pays fourni par la source)

Bias-Variance Trade-off and Model Selection for Proton Radius Extractions

D. W. Higinbotham, Pablo Giuliani, R. E. McClellan, Simon Širca et autres

Intuitively, a scientist might assume that a more complex regression model will necessarily yield a better predictive model of experimental data. Herein, we disprove this notion in the context of extracting the proton charge radius from charge form factor data. Using a …

Robust extraction of the proton charge radius from electron-proton scattering data

X. Yan, D. W. Higinbotham, D. Dutta, A. Gasparian et autres

Background: Extracting the proton charge radius from electron scattering data requires determining the slope of the charge form factor at ${Q}^{2}$ of zero. As experimental data cannot reach that limit, numerous methods for making the extraction have been proposed.Purpose: In this study, …

us, cn (code pays fourni par la source)

Method for robust extraction of proton charge radius from electron-proton-scattering experiments

X. Yan

Publisher’s Note: JLab Measurements of the He3 Form Factors at Large Momentum Transfers [Phys. Rev. Lett. 119 , 162501 (2017)]

A. Camsonne, A. T. Katramatou, M. Olson, A. Acha et autres

This corrects the article DOI: 10.1103/PhysRevLett.119.162501.

us (code pays fourni par la source)

Unpolarized SIDIS Cross Section from a 3 He Target

X. Yan, Durham Duke Univ.

The unpolarized semi-inclusive deep-inelastic scattering (SIDIS) differential cross sections in 3 He(e, e π ± )X have been measured for the first time in Jefferson Lab experiment E06-010 performed with a 5.9 GeV e -beam on a 3 He target.The experiment focuses …

us (code pays fourni par la source)

First measurement of unpolarized semi-inclusive deep-inelastic scattering cross sections from a He 3 target

X. Yan, K. Allada, K. Aniol, J. R. M. Annand et autres

The unpolarized semi-inclusive deep-inelastic scattering (SIDIS) differential cross sections in $^{3}\mathrm{He}(e,{e}^{\ensuremath{'}}{\ensuremath{\pi}}^{\ifmmode\pm\else\textpm\fi{}})X$ have been measured for the first time in Jefferson Lab experiment E06-010 with a $5.9\phantom{\rule{4pt}{0ex}}\mathrm{GeV}\phantom{\rule{4pt}{0ex}}{e}^{\ensuremath{-}}$ beam on a $^{3}\mathrm{He}$ gas target. The experiment focuses on the valence quark region, covering a …

cn, us, gb, it, ua, Égypte, kr, fr, am, si (code pays fourni par la source)

Measurements of d2n and A1n : Probing the neutron spin structure

D. Flay, M. Posik, D. S. Parno, K. Allada et autres

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 ${d}_{2}$ of the neutron (${d}_{2}^{n}$) was conducted. The quantity ${d}_{2}^{n}$ represents the average color Lorentz force a …

us, kr, it, ua, fr, Égypte, si, am, cn (code pays fourni par la source)

Latest results on few-body physics from HigS

Georgios Laskaris, X. Yan

In this talk we discuss the recently completed and upcoming experiments on few-nucleon targets at the High Intensity γ-ray Source (HIγS) facility located at Triangle Universities Nuclear Laboratory (TUNL).Several experiments took place or are planned in order to measure the Gerasimov-Drell-Hearn sum …

us, it (code pays fourni par la source)