TY - JOUR
T1 - Artial cross sections for excitation of He(3 1D) states by electron impact
AU - Mikosza, A. G.
AU - Hippler, R.
AU - Wang, J. B.
AU - Williams, J. F.
PY - 1996/5
Y1 - 1996/5
N2 - We report absolute measurements at a rank four state multipole for He(3 1D) excitation by electron impact with a polarized first-photon-second-photon coincidence technique. The presented technique permits the extraction of total (scattering angle integrated) partial cross sections σm for the excitation of He(3 1Dm) magnetic substates (m=0,±1,±2). The present results stringently test existing theories and, for example, indicate that most theoretical calculations underestimate the partial cross sections σ0 and σ1 and overestimate the σ2. The recent convergent close-coupling calculations of Fursa and Bray [Phys. Rev. A 52, 1279 (1995)] are in excellent agreement with all our measured data.
AB - We report absolute measurements at a rank four state multipole for He(3 1D) excitation by electron impact with a polarized first-photon-second-photon coincidence technique. The presented technique permits the extraction of total (scattering angle integrated) partial cross sections σm for the excitation of He(3 1Dm) magnetic substates (m=0,±1,±2). The present results stringently test existing theories and, for example, indicate that most theoretical calculations underestimate the partial cross sections σ0 and σ1 and overestimate the σ2. The recent convergent close-coupling calculations of Fursa and Bray [Phys. Rev. A 52, 1279 (1995)] are in excellent agreement with all our measured data.
UR - http://www.scopus.com/inward/record.url?scp=3943059038&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:3943059038
VL - 53
SP - 3287
EP - 3294
JO - Physical Review A: covering atomic, molecular, and optical physics and quantum information
JF - Physical Review A: covering atomic, molecular, and optical physics and quantum information
SN - 2469-9926
IS - 5
ER -