Multiplicity density at mid-rapidity in $AA$ collisions: effect of meson cloud

B.G. Zakharov

Multiplicity density at mid-rapidity in $AA$ collisions: effect of meson cloud

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arxiv 1605.06012 v1 pith:G7SLK2R6 submitted 2016-05-15 nucl-th hep-ph

B.G. Zakharov This is my paper · ORCID

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keywords collisionsclouddensitymesonmultiplicitymid-rapiditysqrtbinary

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abstract

We study the influence of the meson cloud of the nucleon on predictions of the Monte Carlo Glauber model for the charged particle multiplicity density at mid-rapidity in $AA$ collisions. We find that for central $AA$ collisions the meson cloud can increase the multiplicity density by $\sim 16-18$\%. The meson-baryon Fock component reduces the required fraction of the binary collisions by a factor of $\sim 2$ for Au+Au collisions at $\sqrt{s}=0.2$ TeV and $\sim 1.5$ for Pb+Pb collisions at $\sqrt{s}=2.76$ TeV.

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