Transverse single-spin asymmetry of midrapidity ${\pi }^0$ and $\eta$ mesons in $p$+Au and $p$+Al collisions at $\sqrt{s_{{}_{NN}}}=$ 200 GeV

N. J. Abdulameer, U. Acharya, C. Aidala +319

Presented are the first measurements of the transverse single-spin asymmetries ($A_N$) for neutral pions and eta mesons in $p$+Au and $p$+Al collisions at $\sqrt{s_{{}_{NN}}}=200$ Ge…