Research output: Contribution to journal › Article › peer-review
High resolution calculations of low energy scattering in e−e+p¯ and e+e−He++ systems via Faddeev–Merkuriev equations. / Gradusov, V.A.; Roudnev, V.A.; Yarevsky, E.A.; Yakovlev, S.L.
In: Journal of Physics B: Atomic, Molecular and Optical Physics, Vol. 52, No. 5, 055202, 2019.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - High resolution calculations of low energy scattering in e−e+p¯ and e+e−He++ systems via Faddeev–Merkuriev equations
AU - Gradusov, V.A.
AU - Roudnev, V.A.
AU - Yarevsky, E.A.
AU - Yakovlev, S.L.
PY - 2019
Y1 - 2019
N2 - The potential splitting approach incorporated into the framework of Faddeev-Merkuriev equations in the differential form is used for calculations of multichannel scattering in e-e+p- and e+e-He++ systems. Detailed calculations of all possible S-wave cross-sections are performed in the low-energy region which supports up to seven open channels including the rearrangement channels of ground and excited states of antihydrogen, positronium and helium ion formations. All known sharp resonances of the systems obtained and approved by a number of authors are clearly reproduced in the calculated cross sections. In cross sections for energies above the threshold corresponding to n=2 state of antihydrogen the prominent oscillations of Gailitis-Damburg type have been found.
AB - The potential splitting approach incorporated into the framework of Faddeev-Merkuriev equations in the differential form is used for calculations of multichannel scattering in e-e+p- and e+e-He++ systems. Detailed calculations of all possible S-wave cross-sections are performed in the low-energy region which supports up to seven open channels including the rearrangement channels of ground and excited states of antihydrogen, positronium and helium ion formations. All known sharp resonances of the systems obtained and approved by a number of authors are clearly reproduced in the calculated cross sections. In cross sections for energies above the threshold corresponding to n=2 state of antihydrogen the prominent oscillations of Gailitis-Damburg type have been found.
KW - Antihydrogen formation
KW - Faddeev-Merkuriev equations
KW - Positron scattering
UR - http://www.scopus.com/inward/record.url?scp=85062471009&partnerID=8YFLogxK
U2 - 10.1088/1361-6455/ab0143
DO - 10.1088/1361-6455/ab0143
M3 - Article
VL - 52
JO - Journal of the European Optical Society Part B: Quantum Optics
JF - Journal of the European Optical Society Part B: Quantum Optics
SN - 0953-4075
IS - 5
M1 - 055202
ER -
ID: 39362712