{ "id": "nucl-th/0409035", "version": "v1", "published": "2004-09-17T16:11:48.000Z", "updated": "2004-09-17T16:11:48.000Z", "title": "$π^+ - π^-$ Asymmetry and the Neutron Skin in Heavy Nuclei", "authors": [ "Antoni Szczurek", "Piotr Pawlowski" ], "comment": "6 pages and 2 figures, a talk by A.Szczurek at the international conference MESON2004, June 4-8, Cracow, Poland", "journal": "Int.J.Mod.Phys. A20 (2005) 618-621", "doi": "10.1142/S0217751X05021956", "categories": [ "nucl-th", "hep-ph" ], "abstract": "In heavy nuclei the spatial distribution of protons and neutrons is different. At CERN SPS energies production of $\\pi^+$ and $\\pi^-$ differs for $pp$, $pn$, $np$ and $nn$ scattering. These two facts lead to an impact parameter dependence of the $\\pi^+$ to $\\pi^-$ ratio in $^{208}Pb + ^{208}Pb$ collisions. A recent experiment at CERN seems to confirm qualitatively these predictions. It may open a possibility for determination of neutron density distribution in nuclei.", "revisions": [ { "version": "v1", "updated": "2004-09-17T16:11:48.000Z" } ], "analyses": { "keywords": [ "heavy nuclei", "neutron skin", "neutron density distribution", "cern sps energies production", "impact parameter dependence" ], "tags": [ "conference paper", "journal article" ], "note": { "typesetting": "TeX", "pages": 6, "language": "en", "license": "arXiv", "status": "editable", "inspire": 659631 } } }