Tootfinder

Here are my favourites from the National Portrait Gallery's Portrait Award 2025. It's a fantastic selection this year, and free to see as always.
#art #portraits #painting

Study of the two-body nonleptonic $B_{c}(2S)$ weak decays with the QCD factorization approach
Na Wang, Yueling Yang, Junfeng Sun
https://arxiv.org/abs/2510.05503 https://…

Study of the two-body nonleptonic $B_{c}(2S)$ weak decays with the QCD factorization approach
Inspired by the promising prospect of the $B_{c}(2S)$ meson at the coming HL-LHC experiments, the nonleptonic $B_{c}(2S)$ meson weak decays induced by both the $b$ and $c$ decays are investigated with the QCD factorization approach. It is found that branching ratios for the color- and CKM-favored $B_{c}(2S)$ ${\to}$ $B_{s}ρ$, $B_{s}π$ decays can reach up to ${\cal O}(10^{-9})$, which might be measurable. The $B_{c}(2S)$ decays into the final states containing one charmonium are highly suppres…

The Discovery of a Large Active Wind from the Milky Way's Central #BlackHole: https://arxiv.org/abs/2509.10615 -> Missing wind from Milky Way’s giant black hole finally found: https://www.science.org/content/article/missing-wind-milky-way-s-giant-black-hole-finally-found - astronomers may have glimpsed a long-predicted wind of gas blowing out from Sagittarius A*.

Except, of course, on city-owned property like Potrero Yards, because affordable housing doesn't pencil out.
And SF's Upzoning plan allows towers without on-site affordable, unlike the State Density Bonus, which actually requires significant on site affordable housing. Developers can just fee out for less than half the cost of building affordable units.
SO I wonder - who were the advisors on the Family Zoning Plan, and whose families would be built for?

Lurie warns Sunset: rezone or ‘there could be towers everywhere’ 
In doubleheader, Sen. Scott Wiener, architect of the state building mandates that require San Francisco to rezone, draws ire at Westside forum

Except, of course, on city-owned property like Potrero Yards, because affordable housing doesn't pencil out.
And SF's Upzoning plan allows towers without on-site affordable, unlike the State Density Bonus, which actually requires significant on site affordable housing. Developers can just fee out for less than half the cost of building affordable units.
SO I wonder - who were the advisors on the Family Zoning Plan, and whose families would be built for?

Lurie warns Sunset: rezone or ‘there could be towers everywhere’ 
In doubleheader, Sen. Scott Wiener, architect of the state building mandates that require San Francisco to rezone, draws ire at Westside forum

Final joint on the north frame if the workshop. I cut the mortice horizontally, which was a lot more awkward, but not as awkward as dismantling the whole frame and putting it together again.
Still ill, but I've managed this.

Hello #Québec #Doctors , the Yukon is hiring:
https://yukondocs.ca
I don't know how the pay competes with…

Self-interacting dark matter in the center of a Local Group dwarf galaxy and its satellites
Thales A. Gutcke, Giulia Despali, Stephanie O'Neil, Mark Vogelsberger, Azadeh Fattahi, David B. Sanders
https://arxiv.org/abs/2510.05258

Self-interacting dark matter in the center of a Local Group dwarf galaxy and its satellites
We present a detailed comparison of a Local Group dwarf galaxy analogue evolved in two cosmological models: the standard $Λ$CDM and a self-interacting dark matter (SIDM) model with a velocity-dependent cross-section. Both simulations are run with the high-resolution, hydrodynamical LYRA galaxy formation model, allowing us to explore the global and substructure properties of the dwarf in a consistent context. While the overall halo growth, final mass, and subhalo mass functions remain largely u…

Installation and first commissioning results of the JEF lead tungstate calorimeter
Alexander Somov, Vladimir Berdnikov
https://arxiv.org/abs/2510.03500 https://

Installation and first commissioning results of the JEF lead tungstate calorimeter
The Electromagnetic Calorimeter (ECAL), consisting of 1,596 lead tungstate scintillating crystals, has been recently constructed and installed in Experimental Hall D at Jefferson Lab (JLab). The calorimeter is a key component of the JLab Eta Factory Experiment, whose main goal is to measure the decays of eta and eta prime mesons into multi-photon final states. The ECAL replaces the inner part of the former forward lead-glass calorimeter. Scintillation light from each crystal is detected using H…

Overcharging Extremal Rotating Black Holes
Shauvik Biswas, Amruta Sadhu, Sudipta Sarkar
https://arxiv.org/abs/2509.05087 https://arxiv.org/pdf/2509.05087…

Overcharging Extremal Rotating Black Holes
In this work, we use the weak cosmic censorship conjecture(WCC) to constrain black hole solutions in modified gravity theories. While Wald showed that extremal Kerr-Newman black holes in general relativity cannot be overcharged by test charged particles, this protection may fail in theories beyond general relativity. We have considered generic rotating black hole solutions beyond the Kerr-Newman family and examine particle absorption processes that could lead to overcharging and the emergence o…