arXiv · 2210.10342
First Simultaneous K$^-$p $\rightarrow (\Sigma^0/\Lambda) \, \pi^0$ Cross Sections Measurements at 98 MeV/c
Abstract
We report the first simultaneous and independent measurements of the K$^{-}$p $\rightarrow \Sigma^0 \, \pi^{0}$ and K$^{-}$p $\rightarrow \Lambda \, \pi^{0}$ cross sections around 100 MeV/c kaon momentum. The kaon beam delivered by the DA$\Phi$NE collider was exploited to detect K$^-$ absorptions on Hydrogen atoms, populating the gas mixture of the KLOE drift chamber. The precision of the measurements ($\sigma_{K^- p \rightarrow \Sigma^0 \pi^0} = 42.8 \pm 1.5 (stat.) ^{+2.4}_{-2.0}(syst.) \ \mathrm{mb}$ and $\sigma_{K^- p \rightarrow \Lambda \pi^0} = 31.0 \pm 0.5 (stat.) ^{+1.2}_{-1.2}(syst.) \ \mathrm{mb}\,$) is the highest yet obtained in the low kaon momentum regime.
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Kristian Piscicchia, Magdalena Skurzok, Michael Cargnelli, Raffaele Del Grande, Laura Fabbietti, Johann Marton, Pawel Moskal, Alessandro Scordo, Àngels Ramos, Diana Laura Sirghi, Oton Vazquez Doce, Johann Zmeskal, Slawomir Wycech, Paolo Branchini, Filippo Ceradini, Eryk Czerwinski, Erika De Lucia, Salvatore Fiore, Andrzej Kupsc, Giuseppe Mandaglio, Matteo Martini, Antonio Passeri, Vincenzo Patera, Elena Perez Del Rio, Andrea Selce, Michał Silarski, Catalina Curceanu. 2022-10-19. First Simultaneous K$^-$p $\rightarrow (\Sigma^0/\Lambda) \, \pi^0$ Cross Sections Measurements at 98 MeV/c. https://arxiv.org/abs/2210.10342
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