Laboratoire de Physique des 2 Infinis Irène Joliot-Curie

Incorporating sliding and local rigidity constraints in neural-based image registration

Image registration is widely used in various applications to estimate the deformations of moving structures in image pairs acquired at different times. Spatial regularization strategies often take a one-size-fits-all approach by imposing uniform deformation constraints across the...

Identification of a nanosecond isomer of $$^{164}$$Tb

Abstract This letter reports on the identification of a new isomeric state of $$^{164}$$ 164 Tb ( $$Z=65$$ Z = 65 , $$N=99$$ N = 99 ), which was measured with the DESPEC setup at the GSI Helmholtzzentrum für Schwerionenforschung GmbH following the first relativistic fragmentation...

Earliest simultaneous multi-color optical observations of GRB 230328B: from 41 seconds to the host-galaxy identification

Abstract We present a multiwavelength study of the long-duration gamma-ray burst GRB 230328B, combining prompt γ-ray observations with exceptionally early simultaneous optical photometry and extensive X-ray, radio, and host-galaxy follow-up. NUTTELA-TAO began simultaneous g′r′i′...

Carbazolyl-Substituted Benzoic Anhydrides as Efficient Triplet Harvesters for High-Brightness Blue Organic Light-Emitting Diodes

Abstract A simple and efficient synthetic strategy for the preparation of carbazole-basedC2-symmetric anhydrides with donor−acceptor−donor (D−A−D) architecture is presented. Four benzoic anhydrides incorporating carbazole or 3,6-di-tert-butylcarbazole donor units, linked to the a...

GRB 260310A / SN 2026fgk: A Multi-Wavelength Study of a Nearby Underluminous Long GRB and SN with a Complex Afterglow

Abstract We present a comprehensive multi-wavelength study of GRB 260310A / SN 2026fgk, a nearby (z = 0.153), long-duration gamma-ray burst (GRB) with an exceptionally underluminous prompt γ-ray emission and a Comptonized spectrum. The burst occurred at the edge of a blue host ga...

Neutron elastic scattering at $$\varvec{30.8}$$ MeV on $$\varvec{^{\text {nat}}\textrm{Ce}}$$

Abstract Elastic scattering of fast neutrons at an incident energy of 30.8 MeV on a natural cerium target was measured during an experiment conducted at the Neutrons For Science facility at GANIL-SPIRAL2. This is the first measurement on cerium using incident neutron energy above...

Role of Ionic Media in f–f Transitions, Stability,and the Structure of Ln(III) Coordination Compounds

Abstract In this study, it was demonstrated that the composition of the ionic medium in solution may significantly influence not only the complex stability but also the spectroscopic properties of 4f electrons. The following reactions were investigated: [Er(EDTA)(H2O)2]− + OH– ⇄...