Explanipedia

Diffraction at the LHCb Experiment Open

J.R. Pybus · 2025

Neutron spin structure from e-<sup>3</sup>He scattering with double spectator tagging at the electron-ion collider Open

I. Friščić, D. Nguyen, J.R. Pybus, A. Jentsch, G. Asryan , et al. · 2024

The spin structure function of the neutron is traditionally determined by measuring the spin asymmetry of inclusive electron deep inelastic scattering (DIS) off polarized ³He nuclei. In such experiments, nuclear corrections are …

High precision measurements of at the future EIC Open

T. Kutz, J.R. Pybus, Dan Upton, C. Cotton, A. Deshpande , et al. · 2024

Here, we present a projection study for the first moments of the inclusive spin structure function $\\int g_1(x,Q^2) \\, dx$ for the proton and neutron from simulated doubly-polarized $\\vec{e}\\vec{p}$ and $\\vec{e}$-$^3 \\overrightarrow{…

Search for axion-like particles through nuclear Primakoff production using the GlueX detector Open

J.R. Pybus, T. Kolar, B. Devkota, P. Sharp, B. Yu , et al. · 2024

We report on the results of the first search for the production of axion-like particles (ALPs) via Primakoff production on nuclear targets, ᵧA → aA, in the "SRC-CT" experiment using the GlueX detector at Jefferson Lab. This search uses an …

Search for axion-like particles through nuclear Primakoff production using the GlueX detector Open

J.R. Pybus, T. Kolar, B. Devkota, P. Sharp, B. Yu , et al. · 2023

We report on the results of the first search for the production of axion-like particles (ALP) via Primakoff production on nuclear targets using the GlueX detector. This search uses an integrated luminosity of 100 pb$^{-1}\cdot$nucleon on a…

Detector requirements and simulation results for the EIC exclusive, diffractive and tagging physics program using the ECCE detector concept Open

A. Bylinkin, C. T. Dean, S. Fegan, D. R. Gangadharan, K. Gates , et al. · 2023

Measuring recoiling nucleons from the nucleus with the future Electron Ion Collider Open

F. Hauenstein, A. Jentsch, J.R. Pybus, A. Kiral, M. D. Baker , et al. · 2022

Short range correlated nucleon-nucleon (NN) pairs are an important part of the nuclear ground state. They are typically studied by scattering an electron from one nucleon in the pair and detecting its spectator correlated partner (spectato…

Neutron spin structure from e-3He scattering with double spectator tagging at the electron-ion collider Open

I. Friščić, D. Nguyen, J.R. Pybus, Alex Jentsch, G. Asryan , et al. · 2021

Measuring Recoiling Nucleons from the Nucleus with the Electron Ion Collider Open

F. Hauenstein, A. Jentsch, J.R. Pybus, A. Kiral, Baker , et al. · 2021

Short range correlated nucleon-nucleon ($NN$) pairs are an important part of the nuclear ground state. They are typically studied by scattering an electron from one nucleon in the pair and detecting its spectator correlated partner ("spect…

12C(e,e'pN) measurements of short range correlations in the tensor-to-scalar interaction transition region Open

I. Korover, J.R. Pybus, A. Schmidt, F. Hauenstein, M. Duer , et al. · 2021

Short-range correlations and the nuclear EMC effect in deuterium and helium-3 Open

G. Asryan, J.R. Pybus, F. Hauenstein, D. W. Higinbotham, Gerald A. Miller , et al. · 2021

The EMC effect in deuterium and helium-3 is studied using a convolution formalism that allows isolating the impact of high-momentum nucleons in short-ranged correlated (SRC) pairs. We assume that the modification of the structure function …

Nucleon off-shell structure and the free neutron valence structure from A=3 inclusive electron scattering measurements Open

G. Asryan, J.R. Pybus, F. Hauenstein, T. Kutz, D. W. Higinbotham , et al. · 2021

Understanding the differences between the distribution of quarks bound in protons and neutrons is key for constraining the mechanisms of SU(6) spin-flavor symmetry breaking in Quantum Chromodynamics (QCD). While vast amounts of proton stru…

Transport Estimations of Final State Interaction Effects on Short-range Correlation Studies Using the $(e,e'p)$ and $(e,e'pp)$ Reactions Open

Nicholas A. Wright, A. Papadopoulou, J.R. Pybus, S. Gardiner, M. Roda , et al. · 2021

Short range correlated (SRC) nucleon-nucleon pairs in nuclei are typically studied using measurements of electron-induced hard nucleon-knockout reactions (e.g. $(e,e'p)$ and $(e,e'pN)$), where the kinematics of the knocked-out nucleons are…

Extracting the number of short-range correlated nucleon pairs from inclusive electron scattering data Open

R. Weiss, A. Denniston, J.R. Pybus, O. Hen, E. Piasetzky , et al. · 2021

The extraction of the relative abundances of short-range correlated (SRC)\nnucleon pairs from inclusive electron scattering is studied using the\ngeneralized contact formalism (GCF) with several nuclear interaction models.\nGCF calculation…

Studying Short-Range Correlations with Real Photon Beams at GlueX Open

O. Hen, M. Patsyuk, E. Piasetzky, A. Schmidt, A. Somov , et al. · 2020

The past few years has seen tremendous progress in our understanding of short-range correlated (SRC) pairing of nucleons within nuclei, much of it coming from electron scattering experiments leading to the break-up of an SRC pair. The inte…

Precision measurements of A=3 nuclei in Hall B Open

O. Hen, Dave Meekins, D. Nguyen, Eli Piasetzky, A. Schmidt , et al. · 2020

We propose a high-statistics measurement of few body nuclear structure and short range correlations in quasi-elastic scattering at 6.6 GeV from $^2$H, $^3$He and $^3$H targets in Hall B with the CLAS12 detector. We will measure absolute cr…

The CLAS12 Backward Angle Neutron Detector (BAND) Open

G. Asryan, F. Hauenstein, A. Schmidt, K. Price, Inés de Vega , et al. · 2020

Laser calibration system for time of flight scintillator arrays Open

A. Denniston, G. Asryan, M. Olivenboim, Anjali Ila Nambrath, A. Schmidt , et al. · 2020

Study of inclusive electron scattering scaling using the generalized contact formalism Open

R. Weiss, A. Denniston, J.R. Pybus, O. Hen, E. Piasetzky , et al. · 2020

The relative abundances of short-range correlated (SRC) nucleon pairs in atomic nuclei are typically extracted from measurements of the per-nucleon inclusive electron scattering cross-section ratio of nucleus $A$ to the deuteron, $a_2=(\si…

Generalized contact formalism analysis of the 4He(e,e′pN) reaction Open

J.R. Pybus, I. Korover, R. Weiss, A. Schmidt, Nir Barnea , et al. · 2020

Measurements of short-range correlations in exclusive $^4$He$(e,e'pN)$ reactions are analyzed using the Generalized Contact Formalism (GCF). We consider both instant-form and light-cone formulations with both the AV18 and local N2LO(1.0) n…

$^{12}$C(e,e'pN) Measurements of Short Range Correlations in the\n Tensor-to-Scalar Interaction Transition Region Open

I. Korover, J.R. Pybus, A. Schmidt, M. Duer, O. Hen , et al. · 2020

High-momentum configurations of nucleon pairs at short-distance are probed\nusing measurements of the $^{12}$C$(e,e'p)$ and $^{12}$C$(e,e'pN)$ reactions\n(where $N$ is either $n$ or $p$), at high-$Q^2$ and $x_B>1.1$. The data span a\nmissi…

Direct Observation of Proton-Neutron Short-Range Correlation Dominance in Heavy Nuclei Open

M. Duer, A. Schmidt, J.R. Pybus, G. Asryan, A. Hrnjic , et al. · 2019

We measured the triple coincidence A(e,e^{'}np) and A(e,e^{'}pp) reactions on carbon, aluminum, iron, and lead targets at Q^{2}>1.5 (GeV/c)^{2}, x_{B}>1.1 and missing momentum >400 MeV/c. This was the first direct measurement of both proto…

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