Zakopane 2026 Conference on Nuclear Physics

The WISArD experiment is a high precision measurement of nuclear beta decay observables to test the existence of Physics Beyond the Standard Model in the weak sector. The angular correlation parameter $a_{\beta\nu}$ and the Fierz interference term $b$ in particular, are very sensitive probes to the existence of exotic scalar or tensor currents, which are not included in the standard V-A theory...

The first spectroscopy of $^{78}$Ni [1] together with indications of shape coexistence just below the N=50 shell closure for $^{79}$Zn [2, 3] suggest that deformed intruder configurations could play a crucial role in low-energy structure properties in this region and towards the limits of the nuclear chart [4]. Such configurations are predicted to originate from multiparticle-multihole...

Neutrinoless double beta decay (0νββ) is a rare nuclear process predicted by beyond-Standard Model theories, offering crucial insights into the nature of neutrinos and lepton number violation. A confirmed observation of 0νββ would establish the Majorana nature of neutrinos and provide constraints on their absolute mass scale. Among candidate isotopes, the decay of $^{136}$Xe to $^{136}$Ba is...

Zhou Yan¹, Xiaofei Yang¹, on behalf of PLASEN collaboration
¹School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China.

Nuclear charge radii and quadrupole moments are sensitive observables of nuclear deformation. Around neutron number N = 60, a region of deformation has been observed through...

The hyperfine anomaly (HFA) originates from finite nuclear-size effects in the hyperfine interaction. It contains contributions from both the finite nuclear magnetization distribution, known as the Bohr-Weisskopf (BW) effect [1], and the finite nuclear charge distribution, known as the Breit-Rosenthal (BR) effect [2,3]. In heavy atoms, the differential BR contribution is expected to be...

The calcium isotopic chain, anchored by the doubly magic nuclei $^{40,48}$Ca, provides an important benchmark for studies focused on nuclear structure properties. In this region, nuclei in the vicinity of these shell closures exhibit predominantly single-particle behavior governed by the occupancy of the $f_{7/2}$ orbital, while the addition or removal of protons and neutrons drives a gradual...

Laser resonance ionization spectroscopy in the ion source coupled directly to the isotope
production target has been proven to be a highly sensitive tool for nuclear structure investigations on
isotopes with low production and extraction yields [1]. While the efficiency of this technique is
unrivalled, the spectral resolution is ultimately limited by Doppler broadening. At the ion source...