Measurements of $B\to J/\psi$ at forward rapidity in $p$$+$$p$ collisions at $\sqrt{s}=510$ GeV

C. Aidala, N. N. Ajitanand, Y. Akiba +427

We report the first measurement of the fraction of $J/\psi$ mesons coming from $B$-meson decay ($F_{B\to J/\psi }$) in $p$+$p$ collisions at $\sqrt{s}=$ 510 GeV. The measurement…