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Quasibound states of massive charged scalars around dilaton black holes in $2 1$ dimensions: Exact frequencies
H. S. Vieira
https://arxiv.org/abs/2506.18740

Quasibound states of massive charged scalars around dilaton black holes in $2+1$ dimensions: Exact frequencies
In this work, we investigate massive charged scalar perturbations in the background of three-dimensional dilaton black holes with a cosmological constant. We demonstrate that the wave equations governing the dynamics of these perturbations are exactly solvable, with the radial part expressible in terms of confluent Heun functions. The quasibound state frequencies are computed analytically, and we examine their dependence on the scalar field's mass and charge, as well as on the black hole's mass…

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Da mache ich grade das Android 15 Update auf meinem Samsung-Handy und was sind die Neuerungen?
1. Von oben links runter wischen öffnet die Benachrichtigungen, rechts das Quick-Panel (habe ich gleich ausgemacht)
2. Die Benachrichtigungen waren früher gefühlt mal kleiner
3. Überhaupt ist auch alles im QuickPanel so riesig geworden. Im ausgeklappten Zustand ist das wichtigste, die ganzen Buttons, NICHT AUSGEKLAPPT. Und nein, das Zeug von wegen "Smart View" oder "G…

Revisiting $\eta'(958)$ nuclear states
E. Friedman, A. Gal
https://arxiv.org/abs/2507.05832 https://arxiv.org/pdf/2507.05832

Revisiting $η'(958)$ nuclear states
Observing $η'$-nuclear quasibound states requires that the $η'$-nuclear potential is both sufficiently attractive and weakly absorptive, as argued by the CBELSA/TAPS collaboration analysing inclusive $η'$ production experiments on nuclear targets, including liquid hydrogen (LH$_2$). Here we present an alternative derivation of the $η'$-nuclear potential constrained by near-threshold $pp\to ppη'$ and $γp\toη' p$ production experiments on a free proton. The resulting $η'$-nuclear potentia…

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