| Published Articles | |
| Title | $\bar{H}^{+}$ ion production from collisions between antiprotons and excited positronium: cross sections calculations in the framework of the GBAR experiment |
| Author(s) | Comini, P (IRFU, SPP, Saclay ; CEA, DSM, Saclay) ; Hervieux, P -A (IPCMS, Strasbourg ; U. Strasbourg) |
| Publication | 2021 |
| Number of pages | 33 |
| In: | New J. Phys. 15 (2013) pp.095022 New J. Phys. 23, 2 (2021) pp.029501 |
| DOI | 10.1088/1367-2630/15/9/095022 (Publication) 10.1088/1367-2630/abe2c1 (Erratum) |
| Subject category | Particle Physics - Phenomenology |
| Accelerator/Facility, Experiment | CERN AD ; GBAR AD-7 |
| Abstract | In the framework of the gravitational behaviour of antihydrogen at rest (GBAR) experiment, cross sections for the successive formation of and from collisions between positronium (Ps) and antiprotons ($\overline{p}$) have been computed in the range 0–30 keV $\overline{p}$ energy, using the continuum distorted wave-final state theoretical model in its three-body and four-body formulations. The effect of the electronic correlations in $\bar{H}^{+}$ on the total cross sections of $\bar{H}^{+}$ production has been studied using three different wave functions for H$^−$ (the matter equivalent of $\bar{H}^{+}$). Ps excited states up to $n_p = 3$, as well as $\bar{H}$ excited states up to $n_h = 4$, have been investigated. The results suggest that the production of can be efficiently enhanced by using either a fraction of Ps(2p) and a 2 keV ($\overline{p}$) beam or a fraction Ps(3d) and antiprotons with kinetic energy below 1 keV. |
| Copyright/License | © 2013-2025 IOP Publishing Ltd and Deutsche Physikalische Gesellschaft (License: CC-BY-3.0) |
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Datensatz erzeugt am 2021-03-26, letzte Änderung am 2023-06-08
