A measurement of the axial form factor of the nucleon by the p(e,e'pi+)n reaction at W=1125 MeV
| dc.creator | A1 Collaboration | |
| dc.creator | Liesenfeld, A. | |
| dc.date | 1999-11-11 | |
| dc.date.accessioned | 2026-07-07T11:36:29Z | |
| dc.date.available | 2026-07-07T11:36:29Z | |
| dc.description | The reaction p(e,e'pi+)n was measured at the Mainz Microtron MAMI at an invariant mass of W=1125 MeV and four-momentum transfers of Q^2=0.117, 0.195 and 0.273 (GeV/c)^2. For each value of Q^2, a Rosenbluth separation of the transverse and longitudinal cross sections was performed. An effective Lagrangian model was used to extract the `axial mass' from experimental data. We find a value of M_A=(1.077+-0.039) GeV which is (0.051+-0.044) GeV larger than the axial mass known from neutrino scattering experiments. This is consistent with recent calculations in chiral perturbation theory. | |
| dc.description | 14 pages, 5 figures, uses elsart.cls | |
| dc.identifier | https://arxiv.org/abs/nucl-ex/9911003 | |
| dc.identifier | http://arxiv.org/abs/nucl-ex/9911003 | |
| dc.identifier | Phys.Lett.B468:20,1999 | |
| dc.identifier | doi:10.1016/S0370-2693(99)01204-6 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/198937 | |
| dc.subject | Nuclear Experiment | |
| dc.title | A measurement of the axial form factor of the nucleon by the p(e,e'pi+)n reaction at W=1125 MeV | |
| dc.type | text |