Tootfinder

Superstring amplitudes from the field-theory limit: an n-point map at one loop
Ricardo Monteiro, Lecheng Ren
https://arxiv.org/abs/2510.02455 https://arxiv…

Superstring amplitudes from the field-theory limit: an n-point map at one loop
Are perturbative superstring amplitudes for massless external states just an $α'$ dressing of super-Yang-Mills/supergravity? This is the case at tree level, where the worldsheet correlators at $n$ points can be written in a natural worldsheet basis, such that the kinematic coefficients are BCJ numerators of super-Yang-Mills/supergravity amplitudes, with the non-trivial $α'$ dependence carried only by the Koba-Nielsen factor. Motivated by this construction, we present for the first time a comp…

Topology-Aware Volume Fusion for Spectral Computed Tomography via Histograms and Extremum Graph
Mohit Sharma, Emma Nilsson, Martin Falk, Talha Bin Masood, Lee Jollans, Anders Persson, Tino Ebbers, Ingrid Hotz
https://arxiv.org/abs/2508.14719

Topology-Aware Volume Fusion for Spectral Computed Tomography via Histograms and Extremum Graph
Photon-Counting Computed Tomography (PCCT) is a novel imaging modality that simultaneously acquires volumetric data at multiple X-ray energy levels, generating separate volumes that capture energy-dependent attenuation properties. Attenuation refers to the reduction in X-ray intensity as it passes through different tissues or materials. This spectral information enhances tissue and material differentiation, enabling more accurate diagnosis and analysis. However, the resulting multivolume datase…

Froggatt-Nielsen like mechanism in the framework of Modular Symmetry for Neutrino Mass, Mixing and Leptogenesis
Gourab Pathak, Mrinal Kumar Das
https://arxiv.org/abs/2508.13578 …

Froggatt-Nielsen like mechanism in the framework of Modular Symmetry for Neutrino Mass, Mixing and Leptogenesis
We study a neutrino mass model with Froggatt-Nielsen (FN) like modular symmetry. The FN mechanism requires an additional gauge symmetry, $U(1)_{FN}$, which is spontaneously broken at high energies. But in this work, we do not need an extra symmetry as modular weights play the role of the FN charges of the additional $U(1)_{FN}$ symmetry. We have constructed a neutrino mass model using FN-like modular symmetry in the $T'$ group. This model can accommodate neutrino oscillation parameters and also…

BepiColombo at Mercury: Three flybys, three magnetospheres
Hayley N. Williamson, Stas Barabash, Hans Nilsson, Martin Wieser, Jim M. Raines, Anna Milillo, Alessandro Aronica, Elisabetta DeAngelis, Yoshifumi Futaana, Daniel Heyner, Adrian Kazakov, Stefano Livi, Stefano Orsini, Kristin Pump, Daniel Schmid, Manabu Shimoyama, Ali Varsani
https://

BepiColombo at Mercury: Three flybys, three magnetospheres
We examine the first three BepiColombo Mercury flybys Using data from the Miniature Ion Precipitation Analyzer (MIPA), an ion mass analyzer in the Search for Exospheric Refilling and Natural Abundances (SERENA) package on the Mercury Planetary Orbiter (MPO) designed to study magnetospheric dynamics. These flybys all passed from dusk to dawn through the nightside equatorial region but were noticeably different from each other. In the first flyby, we observe a low latitude boundary layer and $\si…