Johannes Gutenberg University Mainz

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309 papers · 1 filter

cond-mat.mes-hall2025

Modulation of quantum geometry and its coupling to pseudo-electric field by dynamic strain

Surat Layek, Mahesh A. Hingankar, Ayshi Mukherjee +11

Two-dimensional materials are a fertile ground for exploring quantum geometric phenomena, with Berry curvature and its first moment, the Berry curvature dipole, playing a central r…

math.NA2025

Hybrid multiscale method for polymer melts: analysis and simulations

Ranajay Datta, Mária Lukáčová-Medviďová, Andreas Schömer +1

We model the flow behaviour of dense melts of flexible and semiflexible ring polymers in the presence of walls using a hybrid multiscale approach. Specifically, we perform molecula…

hep-ex2025

Measurements of the Absolute Branching Fraction of the Semileptonic Decay $Ξ^{-} \to Λ e^{-} ν ˉ_{e}$ and the Axial Charge of the $Ξ^{-}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +685

Using $(10087 \pm 44) \times 1 0^{6}$ $J / ψ$ events collected with the BESIII detector, we study the semileptonic decay $Ξ^{-} \to Λ e^{-} ν ˉ_{e}$ for the first time at an electron-…

hep-ex2025★ 4 cited

Investigation of Radiation Emitted by Sub GeV Electrons in Oriented Scintillator Crystals

L. Bandiera, R. Camattari, N. Canale +12

The research investigates coherent interactions between sub-GeV electrons and oriented scintillator crystals, leading to enhanced electromagnetic (EM) radiation. Experiments at Mai…

hep-ex2025★ 1 cited

Evidence for the semileptonic decays $Λ_{c}^{+} \to Σ^{\pm} π^{\mp} e^{+} ν_{e}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +680

Using $4.5 f b^{- 1}$ of $e^{+} e^{-}$ collision data collected by the BESIII detector at center-of-mass energies between $4.600$ and $4.699 G e V$ , we search for the semileptonic decays…

physics.ins-det2025

Picosecond laser test unit for photosensor characterization at ambient and low temperatures

Matthias Raphael Stock, Hans Th. J. Steiger, Ulrike Fahrendholz +2

Accurate single photoelectron (SPE) characterization of photosensors is essential for controlling systematic uncertainties in low-light neutrino and dark matter detectors. We prese…