Probing the Deuteron at Very Large Internal Momenta.
Journal
Physical review letters
ISSN: 1079-7114
Titre abrégé: Phys Rev Lett
Pays: United States
ID NLM: 0401141
Informations de publication
Date de publication:
31 Dec 2020
31 Dec 2020
Historique:
received:
19
08
2020
revised:
27
10
2020
accepted:
02
12
2020
entrez:
15
1
2021
pubmed:
16
1
2021
medline:
16
1
2021
Statut:
ppublish
Résumé
We measure ^{2}H(e,e^{'}p)n cross sections at 4-momentum transfers of Q^{2}=4.5±0.5 (GeV/c)^{2} over a range of neutron recoil momenta p_{r}, reaching up to ∼1.0 GeV/c. We obtain data at fixed neutron recoil angles θ_{nq}=35°, 45°, and 75° with respect to the 3-momentum transfer q[over →]. The new data agree well with previous data, which reached p_{r}∼500 MeV/c. At θ_{nq}=35° and 45°, final state interactions, meson exchange currents, and isobar currents are suppressed and the plane wave impulse approximation provides the dominant cross section contribution. We compare the new data to recent theoretical calculations, where we observe a significant discrepancy for recoil momenta p_{r}>700 MeV/c.
Identifiants
pubmed: 33449750
doi: 10.1103/PhysRevLett.125.262501
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM