The cross section for coherent ω-meson photoproduction off the deuteron has been measured for the first time as a function of the momentum transfer t=(Pγ−Pω)2 and photon energy Eγ using the CLAS detector at the Thomas Jefferson National Accelerator Facility. The cross sections are measured in the energy range 1.4<Eγ<3.4 GeV. A model based on ω−N rescattering is consistent with the data at low and intermediate momentum transfer, |t|. For 2.8<Eγ<3.4 GeV, the total cross-section of ω−N scattering, based on fits within the framework of the Vector Meson Dominance model, is in the range of 30–40 mb.
Chetry, T., Hicks, K., Compton, N., Sargsian, M., Adhikari, S., Ball, J., et al. (2018). Differential cross section for γd → ωd using CLAS at Jefferson Lab. PHYSICS LETTERS. SECTION B, 782, 646-651 [10.1016/j.physletb.2018.06.003].
Differential cross section for γd → ωd using CLAS at Jefferson Lab
D'Angelo, A.Membro del Collaboration Group
;Lanza, L.;Rizzo, A.Membro del Collaboration Group
;
2018-07-10
Abstract
The cross section for coherent ω-meson photoproduction off the deuteron has been measured for the first time as a function of the momentum transfer t=(Pγ−Pω)2 and photon energy Eγ using the CLAS detector at the Thomas Jefferson National Accelerator Facility. The cross sections are measured in the energy range 1.4I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
