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Elliptic flow of strange and multi-strange hadrons in isobar collisions at $\sqrt{s_{\mathrm {NN}}}$ = 200 GeV at RHIC

Priyanshi Sinha
Dec 2022
摘要
We report the elliptic flow ($v_{2}$) of $K_{s}^{0}$, $\Lambda$,$\bar{\Lambda}$, $\phi$, $\Xi^{-}$, and $\overline{\Xi}^{+}$ at mid-rapidityfor Ru+Ru and Zr+Zr collisions at $\sqrt{s_{\mathrm {NN}}}$ = 200 GeV. Thetransverse momentum ($p_{T}$) and centrality dependence of $v_{2}$ have beenstudied. The number of constituent quark (NCQ) scaling for all the(multi-)strange hadrons has also been tested. The dependence in the ratio ofaverage $v_{2}$ ($\langle$$v_{2}$$\rangle$) on centrality shows a deviationfrom unity indicating a difference in nuclear structure and deformation betweenthe isobars. The results show a systematic size dependence when compared toCu+Cu, Au+Au, and U+U collisions at similar beam energies.
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