Tootfinder

Dynamic buckling of Si tetramers on the Si(111)-7x7
R. Zhachuk, J. Coutinho, D. Sheglov
https://arxiv.org/abs/2506.15219 https://arxi…

Dynamic buckling of Si tetramers on the Si(111)-7x7
The atomic structure of Si tetramers that form on the Si$(111)\textrm{-}7\times7$ surface during homoepitaxy, is investigated by means of first principles calculations with the currently available atomistic model as starting point. It is demonstrated that the rectangular shape of the Si tetramer is unstable against buckling. Comparison of calculated results with available scanning tunnelling microscopy (STM) data provides a new understanding of the problem, indicating that the recorded STM imag…

„Ohne uns wird‘s dunkel“
Das #Theater Plauen Zwickau will mit anderen sächsischen Theatern & #Orchestern in der Landeshauptstadt für die Finanzierung der #Theaterlandschaft demons…

🇺🇦 #NowPlaying on #BBC6Music's #TheHueyShow
Todd Rundgren:
🎵 Be Nice To Me
#ToddRundgren
https://toddrundgren.bandcamp.com/track/be-nice-to-me
https://open.spotify.com/track/7sRdOIMWJSioTaBMhFMbZ6

Mein Name ist Manuel, meine Hobbies sind rechtsradikale Sachen twittern und einscheißen.

🇺🇦 #NowPlaying on KEXP's #SonicReducer
The Drones:
🎵 Corgi Crap
#TheDrones
https://open.spotify.com/track/3OrhFsrZQHKSExhLFIttBM

Very interesting discussion!
https://www.thetransmitter.org/attention/the-brains-quiet-conductor-how-hidden-cells-fine-tune-arousal/

The peculiar hard state behaviour of the black hole X-ray binary Swift J1727.8$-$1613
A. K. Hughes, F. Carotenuto, T. D. Russell, A. J. Tetarenko, J. C. A. Miller-Jones, R. M. Plotkin, A. Bahramian, J. S. Bright, F. J. Cowie, J. Crook-Mansour, R. Fender, J. K. Khaulsay, A. Kirby, S. Jones, M. McCollough, R. Rao, G. R. Sivakoff, S. D. Vrtilek, D. R. A. Williams-Baldwin, C. M. Wood, D. Altamirano, P. Casella, N. Castro Segura, S. Corbel, M. Del Santo, C. Echiburu-Trujillo, J. van den Eij…

The peculiar hard state behaviour of the black hole X-ray binary Swift J1727.8$-$1613
Tracking the correlation between radio and X-ray luminosities during black hole X-ray binary outbursts is a key diagnostic of the coupling between accretion inflows (traced by X-rays) and relativistic jet outflows (traced by radio). We present the radio--X-ray correlation of the black hole low-mass X-ray binary Swift~J1727.8$-$1613 during its 2023--2024 outburst. Our observations span a broad dynamic range, covering $\sim$4 orders of magnitude in radio luminosity and $\sim$6.5 in X-ray luminosi…

Recent Results on the Tetraneutron
Thomas Faestermann, Roman Gernh\"auser
https://arxiv.org/abs/2506.11623 https://arxiv.org/pdf…

Recent Results on the Tetraneutron
We describe the recent experiments which claimed an observation of a tetra-neutron signal. Production reactions like transfer, knockout, fragmentation or photodisintegration have been used at very different experiments and facilities to form systems just made of neutrons. As a possible explanation of the partly contradicting results we suggest that some observed the bound ground state and some an unbound but still correlated state of the four neutrons at different exitation energy. We also refe…

The $\eta$-$\eta'$ mixing and its application in the $B^ /D^ /D_s^ \to\eta^{(\prime)}\ell^ \nu_\ell$ decays
Yu-Jie Zhang, Xing-Gang Wu, Dan-Dan Hu, Long Zeng
https://arxiv.org/abs/2506.13214

The $η$-$η'$ mixing and its application in the $B^+/D^+/D_s^+\toη^{(\prime)}\ell^+ ν_\ell$ decays
In this paper, we take into account the intrinsic charm and gluonic contents into the $η-η^\prime$ mixing scheme and formulate the tetramixing $η-η^\prime-G-η_c$ to study the mixing properties of $η^{(\prime)}$ mesons. Using the newly derived mixing parameters, we calculate the transition form factors (TFFs) of $B^+/D^+/D_s^+\toη^{(\prime)}$ within the QCD light-cone sum rules up to next-to-leading order QCD corrections and twist-4 contributions. Using the extrapolated TFFs, we then calc…

Thermal electrons in the radio afterglow of relativistic tidal disruption event ZTF22aaajecp/AT2022cmc
Lauren Rhodes, Ben Margalit, Joe S. Bright, Hannah Dykaar, Rob Fender, David A. Green, Daryl Haggard, Assaf Horesh, Alexander J. van der Horst, Andrew Hughes, Kunal Mooley, Itai Sfaradi, David Titterington, David WIlliams-Baldwin
https://

Thermal electrons in the radio afterglow of relativistic tidal disruption event ZTF22aaajecp/AT2022cmc
A tidal disruption event (TDE) occurs when a star travels too close to a supermassive black hole. In some cases, accretion of the disrupted material onto the black hole launches a relativistic jet. In this paper, we present a long term observing campaign to study the radio and sub-millimeter emission associated with the fifth jetted/relativistic TDE: AT2022cmc. Our campaign reveals a long lived counterpart. We fit three different models to our data: a non-thermal jet, a spherical outflow consis…