Study of theη′Produced inK−pInteractions at 2.885GeVc

Abstract

We have accumulated a sample of \ensuremath{\sim} 400 ${\ensuremath{\eta}}^{\ensuremath{'}}(958)$ decays in the modes (1) ${\ensuremath{\eta}}^{\ensuremath{'}}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}\ensuremath{\gamma}$ and (2) ${\ensuremath{\eta}}^{\ensuremath{'}}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}{\ensuremath{\eta}}_{N}^{0} (N=\mathrm{neutral}\mathrm{decay})$ from a 15.4-eV/\ensuremath{\mu}b study of ${K}^{\ensuremath{-}}p$ interactions at 2.89 $\frac{\mathrm{GeV}}{c}$. We find a branching ratio $R=\frac{(1)}{(2)}=1.11\ifmmode\pm\else\textpm\fi{}0.18$, where (1) is entirely ${\ensuremath{\eta}}^{\ensuremath{'}}\ensuremath{\rightarrow}{\ensuremath{\rho}}^{0}\ensuremath{\gamma}$. A matrix-element analysis yields ${J}^{P}({\ensuremath{\eta}}^{\ensuremath{'}})={0}^{\ensuremath{-}},{2}^{\ensuremath{-}}$ as acceptable values for both samples. Production-decay angular correlations suggest that a ${J}^{P}={2}^{\ensuremath{-}}$ assignment is unlikely.

Related Papers

• Susquehanna Chorale Spring Concert "Roots and Wings"(2017)
• IDENTIFIKASI MODE RUSAK JAMAK (MULTI-FAULTS) BANTALAN MENGGUNAKAN ANALISIS ENVELOPE PADA TURBIN ANGIN Horizontal Axis(2018)
• EVALUASI PERLAKUAN AKUNTANSI HARGA POKOK PRODUK RUSAK PADA PT. MULIAPRIMA REPLICATAMA SEMARANG(2000)
• ANALISIS PERLAKUAN AKUNTANSI PRODUK RUSAK PADA PT. AJINOMOTO INDONESIA MOJOKERTO FACTORY(2017)
• Perbedaan Kinerja Karyawan Sebelum dan Sesudah Penerapan Uraian Pekerjaan(2001)