TY  - JOUR
A1  - Müller, Berndt
A1  - Peitz, Heinrich
A1  - Rafelski, Johann
A1  - Greiner, Walter
T1  - Solution of the Dirac equation for strong external fields
T2  - Physical review letters
N2  - The 1s bound state of superheavy atoms and molecules reaches a binding energy of -2mc2 at Z≈169. It is shown that the K shell is still localized in r space even beyond this critical proton number and that it has a width Γ (several keV large) which is a positron escape width for ionized K shells. The suggestion is made that this effect can be observed in the collision of very heavy ions (superheavy molecules) during the collision.
Y1  - 2006
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/2527
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30-28758
UR  - http://link.aps.org/abstract/PRL/v28/p1235
VL  - 28
IS  - 19
SP  - 1235
EP  - 1238
ER  -