Tootfinder

Space-filling efficiency and optical properties of hemoglycin
Julie E M McGeoch, Malcolm W McGeoch
https://arxiv.org/abs/2507.10612 https://

Space-filling efficiency and optical properties of hemoglycin
The empty, extensive low-density lattice topology of hemoglycin is examined to understand how in space, and possibly as early as 800M years into cosmic time a rod-like polymer of glycine and iron came into dominance. A central question to be answered is whether the hemoglycin rod lattice with diamond 2H symmetry represents the most efficient covering of space by a regular arrangement of identical rods. Starting from the tetrahedral symmetry of every hemoglycin lattice vertex we find that the re…

Evidence for shape coexistence in $^{120}$Sn from the first $0^ _3$ lifetime measurement
F. Wu, C. Andreoiu, V. Karayonchev, C. M. Petrache, J. -M. R\'egis, A. Esmaylzadeh, C. Michelagnoli, M. Beuschlein, P. Spagnoletti, G. Colombi, J. M. Daugas, L. Domenichetti, P. E. Garrett, J. Jolie, M. Ley, S. Pannu, E. Taddei
https://arxiv.org/ab…

Evidence for shape coexistence in $^{120}$Sn from the first $0^+_3$ lifetime measurement
The lifetime of the $0^+_3$ state in $^{120}$Sn was measured for the first time applying the fast-timing technique following thermal neutron capture. The mean lifetime of $τ= 50(7)$~ps leads to a $E0$ transition strength of $10^3\times ρ^2(E0;0^+_3\rightarrow0^+_2) = 120(50)$, suggesting shape coexistence and a high degree of mixing between the $0^+_2$ and $0^+_3$ states. With the newly measured lifetime, the $B(E2;0^+_3\rightarrow 2^+_1)$ value is 0.50(7)~W.u., which reveals that the $ρ^2(E…