159 citations · 1.5k across the 61 of their papers we have counts for
49 papers · 1 filter
First measurement of polarized spin-density matrix elements and differential cross sections d/d in ~photoproduction off the proton for GeV using CLAS at Jefferson Lab
T. Hu, Z. Akbar, V. Crede +147
We report on the differential cross sections d/d, the unpolarized spin-density matrix elements , , Re\,, and the first extraction of the polari…
Measurement of Beam-Recoil Observables and for Photoproduction
CLAS Collaboration, S. Adhikari, B. A. Raue +154
Exclusive photoproduction of final states off a proton target has been an important component in the search for missing nucleon resonances and our understanding of the prod…
Beam Charge Asymmetries for Deeply Virtual Compton Scattering on the Proton at CLAS12
E. Voutier, V. Burkert, S. Niccolai +76
The parameterization of the nucleon structure through Generalized Parton Distributions (GPDs) shed a new light on the nucleon internal dynamics. For its direct interpretation, Deep…
Beam Spin Asymmetry Measurements of Deeply Virtual Production with CLAS12
A. Kim, S. Diehl, K. Joo +154
The new experimental measurements of beam spin asymmetry were performed for the deeply virtual exclusive production in a wide kinematic region with the photon virtualities $Q…
Strong Interaction Physics at the Luminosity Frontier with 22 GeV Electrons at Jefferson Lab
A. Accardi, P. Achenbach, D. Adhikari +441
This document presents the initial scientific case for upgrading the Continuous Electron Beam Accelerator Facility (CEBAF) at Jefferson Lab (JLab) to 22 GeV. It is the result of a…
Measurement of the helicity asymmetry for the reaction in the resonance region
K. Chan, N. Zachariou, M. Bashkanov +9
The double-spin-polarization observable for has been measured with the CEBAF Large Acceptance Spectrometer (CLAS) at photon beam energies …
First Measurement of Electroproduction off Nuclei in the Current and Target Fragmentation Regions
T. Chetry, L. El Fassi, W. K. Brooks +151
We report results of hyperon production in semi-inclusive deep-inelastic scattering off deuterium, carbon, iron, and lead targets obtained with the CLAS detector and the Contin…
Observation of azimuth-dependent suppression of hadron pairs in electron scattering off nuclei
S. J. Paul, S. Moran, M. Arratia +142
We present the first measurement of di-hadron angular correlations in electron-nucleus scattering. The data were taken with the CLAS detector and a 5.0 GeV electron beam incident o…
Exclusive Electroproduction off the Neutron in Deuterium in the Resonance Region
Y. Tian, R. W. Gothe, V. I. Mokeev +140
New results for the exclusive and quasi-free cross sections off neutrons bound in deuterium are presented over a wide final state hadron angle rang…
Beam-Recoil Transferred Polarization in Electroproduction in the Nucleon Resonance Region with CLAS12
D. S. Carman, A. D'Angelo, L. Lanza +138
Beam-recoil transferred polarizations for the exclusive electroproduction of and final states from an unpolarized proton target have been measured using the CLAS12…
Measurement of charged-pion production in deep-inelastic scattering off nuclei with the CLAS detector
S. Moran, R. Dupre, H. Hakobyan +141
Background: Energetic quarks in nuclear DIS propagate through the nuclear medium. Processes that are believed to occur inside nuclei include quark energy loss through medium-stimul…
Beam-spin asymmetry for hyperon photoproduction off the neutron
Nicholas Zachariou, Edwin Munevar, Barry Berman +8
We report a new measurement of the beam-spin asymmetry for the reaction using quasi-free neutrons in a liquid-deuterium target. The new…
Form Factors and Two-Photon Exchange in High-Energy Elastic Electron-Proton Scattering
M. E. Christy, T. Gautam, L. Ou +167
We present new precision measurements of the elastic electron-proton scattering cross section for momentum transfer (Q) up to 15.75~\gevsq. Combined with existing data, these p…
Measurement of deeply virtual Compton scattering off Helium-4 with CLAS at Jefferson Lab
R. Dupré, M. Hattawy, N. A. Baltzell +138
We report on the measurement of the beam spin asymmetry in the deeply virtual Compton scattering off He using the CEBAF Large Acceptance Spectrometer (CLAS) at Jefferson Lab us…
Measurement of the proton spin structure at long distances
X. Zheng, A. Deur, H. Kang +148
Measuring the spin structure of protons and neutrons tests our understanding of how they arise from quarks and gluons, the fundamental building blocks of nuclear matter. At long di…
Photoproduction of the meson using the CLAS detector
M. ~Carver, A. ~Celentano, K. ~Hicks +137
The quark structure of the meson has, for many years, been assumed to be a pure quark-antiquark () resonance with quantum numbers . Recently,…
Precision measurements of A=3 nuclei in Hall B
Or Hen, Dave Meekins, Dien Nguyen +55
We propose a high-statistics measurement of few body nuclear structure and short range correlations in quasi-elastic scattering at 6.6 GeV from H, He and H targets in H…
Extraction of beam-spin asymmetries from the hard exclusive channel off protons in a wide range of kinematics
S. Diehl, K. Joo, A. Kim +135
We have measured beam-spin asymmetries to extract the moment from the hard exclusive reaction above the resonance region, fo…
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…
Modified Structure of Protons and Neutrons in Correlated Pairs
B. Schmookler, M. Duer, A. Schmidt +6
The atomic nucleus is made of protons and neutrons (nucleons), that are themselves composed of quarks and gluons. Understanding how the quark-gluon structure of a nucleon bound in…
Probing the core of the strong nuclear interaction
A. Schmidt, J. R. Pybus, R. Weiss +162
The strong nuclear interaction between nucleons (protons and neutrons) is the effective force that holds the atomic nucleus together. This force stems from fundamental interactions…
First measurement of direct photoproduction of the meson on the proton
A. Celentano, M. Battaglieri, R. De Vita +4
We present the first measurement of the exclusive reaction in the photon energy range - GeV and four-momentum transfer squared $0.2<-t<2…
Neutron DVCS Measurements with BONuS12 in CLAS12
M. Hattawy, M. Amaryan, S. Bültmann +27
The three-dimensional picture of quarks and gluons in the nucleon is set to be revealed through deeply virtual Compton scattering (DVCS). With the absence of a free neutron target,…
Exclusive electroproduction off protons in the resonance region at photon virtualities 0.4~GeV ~GeV
N. Markov, K. Joo, V. D. Burkert +120
The exclusive electroproduction process was measured in the range of photon virtualities ~GeV and the invariant mass range of th…