Towards a Connection Between Nuclear Structure and QCD

Details Towards a Connection Between Nuclear Structure and QCD Towards a Connection Between Nuclear Structure and QCD

2004-11-03

arxiv.org/abs/nucl-th/0411014v1

Prog.Theor.Phys.Suppl.156:124-136,2004

Physics

Nuclear Physics

Nuclear Theory

Lecture presented at: 18th Nishinomiya-Yukawa Memorial Symposium On Strangeness In Nuclear Matter : 4-5 Dec 2003, Nishinomiya,

Scientific paper

10.1143/PTPS.156.124

As we search for an ever deeper understanding of the structure of hadronic matter one of the most fundamental questions is whether or not one can make a connection to the underlying theory of the strong interaction, QCD. We build on recent advances in the chiral extrapolation problem linking lattice QCD at relatively large ``light quark'' masses to the physical world to estimate the scalar polarizability of the nucleon. The latter plays a key role in modern relativistic mean-field descriptions of nuclei and nuclear matter (such as QMC) and, in particular, leads to a very natural saturation mechanism. We demonstrate that the value of the scalar polarizability extracted from the lattice data is consistent with that needed for a successful description of nuclei within the framework of QMC. In a very real sense this is the first hint of a direct connection between QCD and the properties of finite nuclei.

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