High-mass $K^{*}$ production in $K^{+}d$ interactions at 9 GeV/c

We have observed $K^{*}\mathrm{}\left(1760\right)\mathrm{}$ and $K^{*}\mathrm{}\left(2100\right)\mathrm{}$ production in a 10-event/μb $K^{+}d$ experiment at 9 GeV/c. The $K^{*}\mathrm{}\left(1760\right)\mathrm{}$ has a mass of 1769 ± 12 MeV and a width of 132 ± 50 MeV and the $K^{*}\mathrm{}\left(2100\right)\mathrm{}$ has a mass of 2115 ± 46 MeV and a width of 300 ± 200 MeV. Branching ratios for decay into various final states are presented and evidence for decay into two, three, and four scalar mesons is presented. The spin-parity of the $K^{*}\mathrm{}\left(1760\right)\mathrm{}$ is found to be $3^{-}$. The $K^{*}\mathrm{}\left(2100\right)\mathrm{}$ is compatible with a $4^{+}$ assignment.