M Ehrhart
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Explore the profile of M Ehrhart including associated specialties, affiliations and a list of published articles.
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43
Citations
570
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Recent Articles
1.
Diehl S, Trotta N, Joo K, Achenbach P, Akbar Z, Armstrong W, et al.
Phys Rev Lett
. 2023 Jul;
131(2):021901.
PMID: 37505937
The polarized cross-section ratio σ_{LT^{'}}/σ_{0} from hard exclusive π^{-}Δ^{++} electroproduction off an unpolarized hydrogen target has been extracted based on beam-spin asymmetry measurements using a 10.2 GeV/10.6 GeV incident electron...
2.
Christiaens G, Defurne M, Sokhan D, Achenbach P, Akbar Z, Amaryan M, et al.
Phys Rev Lett
. 2023 Jun;
130(21):211902.
PMID: 37295113
Deeply virtual Compton scattering (DVCS) allows one to probe generalized parton distributions describing the 3D structure of the nucleon. We report the first measurement of the DVCS beam-spin asymmetry using...
3.
Diehl S, Kim A, Angelini G, Joo K, Adhikari S, Amaryan M, et al.
Phys Rev Lett
. 2022 Feb;
128(6):062005.
PMID: 35213183
High precision measurements of the polarized electron beam-spin asymmetry in semi-inclusive deep inelastic scattering (SIDIS) from the proton have been performed using a 10.6 GeV incident electron beam and the...
4.
Rowley J, Compton N, Djalali C, Hicks K, Price J, Zachariou N, et al.
Phys Rev Lett
. 2022 Jan;
127(27):272303.
PMID: 35061432
Strange matter is believed to exist in the cores of neutron stars based on simple kinematics. If this is true, then hyperon-nucleon interactions will play a significant part in the...
5.
Chatagnon P, Niccolai S, Stepanyan S, Amaryan M, Angelini G, Armstrong W, et al.
Phys Rev Lett
. 2022 Jan;
127(26):262501.
PMID: 35029502
We present the first measurement of the timelike Compton scattering process, γp→p^{'}γ^{*}(γ^{*}→e^{+}e^{-}), obtained with the CLAS12 detector at Jefferson Lab. The photon beam polarization and the decay lepton angular asymmetries...
6.
Hayward T, Dilks C, Vossen A, Avakian H, Adhikari S, Angelini G, et al.
Phys Rev Lett
. 2021 Apr;
126(15):152501.
PMID: 33929247
The observation of beam spin asymmetries in two-pion production in semi-inclusive deep inelastic scattering off an unpolarized proton target is reported. The data presented here were taken in the fall...
7.
Carver M, Celentano A, Hicks K, Marsicano L, Mathieu V, Pilloni A, et al.
Phys Rev Lett
. 2021 Mar;
126(8):082002.
PMID: 33709753
The quark structure of the f_{2}(1270) meson has, for many years, been assumed to be a pure quark-antiquark (qq[over ¯]) resonance with quantum numbers J^{PC}=2^{++}. Recently, it was proposed that...
8.
Mirazita M, Avakian H, Courtoy A, Pisano S, Adhikari S, Amaryan M, et al.
Phys Rev Lett
. 2021 Feb;
126(6):062002.
PMID: 33635681
A first measurement of the longitudinal beam spin asymmetry A_{LU} in the semi-inclusive electroproduction of pairs of charged pions is reported. A_{LU} is a higher-twist observable and offers the cleanest...
9.
Diehl S, Joo K, Kim A, Avakian H, Kroll P, Park K, et al.
Phys Rev Lett
. 2020 Nov;
125(18):182001.
PMID: 33196236
We have measured beam-spin asymmetries to extract the sinϕ moment A_{LU}^{sinϕ} from the hard exclusive e[over →]p→e^{'}nπ^{+} reaction above the resonance region, for the first time with nearly full coverage...
10.
Hattawy M, Baltzell N, Dupre R, Bultmann S, De Vita R, Alaoui A, et al.
Phys Rev Lett
. 2019 Aug;
123(3):032502.
PMID: 31386486
In the past two decades, deeply virtual Compton scattering of electrons has been successfully used to advance our knowledge of the partonic structure of the free proton and investigate correlations...