Nuclear surface diffuseness revealed in nucleon-nucleus diffraction

Abstract

Nuclear surface provides useful information on nuclear radius, nuclear structure as well as properties of nuclear matter. We discuss the relationship between the nuclear surface diffuseness and elastic scattering differential cross section at the first diffraction peak of high-energy nucleon-nucleus scattering as an efficient tool in order to extract the nuclear surface information from limited experimental data involving short-lived unstable nuclei. The high-energy reaction is described by a reliable microscopic reaction theory, the Glauber model. Extending the idea of the black sphere model, we find one-to-one correspondence between the nuclear bulk structure information and proton elastic scattering diffraction peak. This implies that we can extract both the nuclear radius and diffuseness simultaneously, using the position of the first diffraction peak and its magnitude of the elastic scattering differential cross section. We confirm the reliability of this approach by using realistic density distributions obtained by a mean-field model.

arXiv comment12 pages, 12 figures, to appear in Phys. Rev. C

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Cited by in corpus (13)

• Imprint of nuclear bubble in nucleon-nucleus diffraction
• Complete Glauber calculations for proton-nucleus inelastic cross sections
• Large enhancement of total reaction cross sections at the edge of the island of inversion in Ti, Cr, and Fe isotopes
• Pairing core swelling effect in Pb isotopes at $N>126$
• Density profiles near nuclear surface of ${}^{44,52}$Ti: An indication of $\alpha$ clustering
• Imprints of $\alpha$ clustering in the density profiles of ${}^{12}$C and ${}^{16}$O
• Evidence of bicluster structure in the ground state of ${}^{20}$Ne
• Enlarged deformation region in neutron-rich Zr isotopes by the second intruder orbit
• Incomplete absorption reactions at high energy
• Utility of antiproton-nucleus scattering for probing nuclear surface density distributions
• Global analysis of the non-uniformity of nucleon density distributions
• Investigating nuclear density profiles to reveal particle-hole configurations in the island of inversion
• Deformation, halo, and bubble structure: A paradigm shift of exotic phenomena in light to medium mass nuclei