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Hace 5 días · The new model provides good reproduction of proton scattering data on five target nuclei, opening up interesting perspectives for applications to exotic nuclei, including setting up a reliable framework to investigate isospin effects in nuclear structure from a scattering perspective.
Hace 4 días · Nuclear physics is the study of the protons and neutrons at the centre of an atom and the interactions that hold them together in a space just a few femtometres (10-15 metres) across.
Hace 4 días · I. INTRODUCTION. J/ψ production has been the focus of much theoreti-cal and experimental interest in the past decades. Un-derstanding its production mechanism and using it as a probe to QCD matter are among the most active and challenging subjects in particle and nuclear physics [1, 2].
Hace 5 días · The understanding of the neutron star equation of state hinges on a comprehensive analysis of multimessenger, multiwavelength data. The recent scrutiny of PSR $\mathrm{J}0030+0451$ data by NICER introduces complexities, unveiling a tension with another x-ray observation of the central compact object in HESS J1731-347, specifically concerning the mass-radius constraint of low-mass neutron stars.
Hace 3 días · Dynamic nuclear polarization (DNP) experiments using microwave (mw) pulse sequences are one approach to transfer the larger polarization on the electron spin to nuclear spins of interest. How the result of such experiments depends on the external magnetic field and the excitation power is part of an ongoing debate and of paramount importance for applications that require high chemical shift ...
Hace 1 día · Relativistic positron sources with high spin polarization have important applications in nuclear and particle physics and many frontier fields. However, it is challenging to produce dense polarized positrons. Here we present a simple and effective method to achieve such a positron source by directly impinging a relativistic high-density electron beam on the surface of a solid target. During ...
Hace 4 días · A new way of calculating the size of atomic nuclei has helped solve a longstanding problem in nuclear theory. Previously, all so-called ab initio approaches to this problem “under-predicted” the sizes of nuclear radii, but the new method produces answers in line with experimental results for the radii of elements with atomic ...
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