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Erlangen 2022 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 9: Collisions, scattering and correlation phenomena

A 9.3: Poster

Dienstag, 15. März 2022, 16:30–18:30, P

Multi-electron transfers and -excitations in near-adiabatic collisions of Xe52+,54+ +Xe at the ESR Storage ring — •Siegbert Hagmann1, Pierre-Michel Hillenbrand1,2, Jan Glorius1, Uwe Spillmann1, Yuri Litvinov1, Yuri Kozhedub6, Ilya Tupitsyn6, Michael Lestinsky1, Alexander Gumberidze1,3, Sergij Trotsenko1,4, Hermann Rothard7, Enrico DeFilippo8, Emmanouel Benis9, Stefan Nanos9, Robert Grisenti1,2, Nikos Petridis1,2, Shahab Sanjari1, Carsten Brandau1, Esther Menz1, Timo Morgenroth1, and Thomas Stöhlker1,4,51GSI Helmholtz-Zentrum Darmstadt — 2Inst. f. Kernphysik, Univ. Frankfurt — 3Extreme Matter Institut EMMI, GSI Darmstadt — 4Helmholtz Inst. Jena — 5Inst. f. Optik u. Quantenelektronik, U. Jena — 6Dep. of Physics, St Petersburg State Univ. — 7CIMAP, Ganil, Caen France — 8INFN Catania ,Italy — 9Univ. of Ioannina, Greece

In near adiabatic collisions of bare to He-like Xe ions with Xe atoms multi-electron transfer processes are studied by measuring the emitted target- and projectile K- and L- x rays in coincidence with projectiles which have captured 3 to 6 electrons, and with time of flight of recoiling Xe target ions. We find that in the projectiles a wide range of electron levels even with main quantum numbers n>5 are excited- extending to a very significant population of Rydberg levels, all dependent on capture multiplicity; a strong contribution of K x rays from high n shells indicates that outer shell transfer avoids Yrast states l=n-1 but dominantly prefers low l states of the projectile with l=1.

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