National Centre for Nuclear Research

One-loop renormalization of quark TMD in the light-cone gauge: CSS evolution

Abstract We calculate the one-loop corrections to the quark TMD (focusing on the divergences) in the light-cone gauge using the background field formalism, testing different prescriptions for the extra singularity present in the light-cone gauge propagator. We use the pure rapidi...

Characterization of the GARIS-III Separator via the 40 Ar + 208 Pb Fusion Evaporation Reaction

This work reports on the measurements performed during the commissioning of the GARIS-III separator in RIKEN with the study of the 40 Ar + 208 Pb → 248 Fm * reaction. The excitation functions of the 2n, 3n, and 4n exit channels were measured with maximum cross sections of 27.5 ±...

Exploring non-equilibrium effects in sequential freeze-in

A bstract Freeze-in of multi-component dark sectors is governed not only by the interaction with the thermal plasma, but also by their internal dynamics. Full thermalisation within the dark sector is not guaranteed, raising the question of impact of departures from local thermal...

Plastic incompatibility stresses arising from slip and twinning in extruded AZ31 magnesium alloy: In-situ synchrotron diffraction analysis using self-consistent modeling

This study presents a comprehensive investigation into the bulk internal stress evolution within an extruded AZ31 magnesium alloy subjected to both in-situ uniaxial tensile and compressive loading. Using energy-dispersive synchrotron X-ray diffraction (ED XRD), first-order macros...

Exploring baryon semileptonic decays through polarization and entanglement

Abstract The unitarity of the Cabibbo–Kobayashi–Maskawa (CKM) matrix is a cornerstone of the standard model (SM). Precise tests of this unitarity require independent determinations of its elements, such as | V us |, which governs the transition between strange and up quarks. Curr...

Evidence for long-distance contacts at the turn of eras: A leontomorphic fibula from Kuyavia (Poland). A contribution to the study on the European family of lion-bow fibulae

Abstract Located in the North European Plain and the heart of the Polish lands, the historic region of Kuyavia has long been an area where cultural communication and trade routes criss-crossed. This geographical characteristic had transformative effects on the region’s inhabitant...

Charges of supergravity

A bstract We study conserved charges of $$ \mathcal{N} $$ N = 1 supergravity formulated as a constrained BF theory based on the OSp(1|4) superalgebra. Using the covariant phase space formalism, we derive bulk and boundary contributions to the symplectic structure and construct ch...