English

First Simultaneous K$^-$p $\rightarrow (\Sigma^0/\Lambda) \, \pi^0$ Cross Sections Measurements at 98 MeV/c

Nuclear Experiment 2022-10-24 v2 High Energy Physics - Phenomenology

Abstract

We report the first simultaneous and independent measurements of the K^{-}p Σ0π0\rightarrow \Sigma^0 \, \pi^{0} and K^{-}p Λπ0\rightarrow \Lambda \, \pi^{0} cross sections around 100 MeV/c kaon momentum. The kaon beam delivered by the DAΦ\PhiNE collider was exploited to detect K^- absorptions on Hydrogen atoms, populating the gas mixture of the KLOE drift chamber. The precision of the measurements (σKpΣ0π0=42.8±1.5(stat.)2.0+2.4(syst.) mb\sigma_{K^- p \rightarrow \Sigma^0 \pi^0} = 42.8 \pm 1.5 (stat.) ^{+2.4}_{-2.0}(syst.) \ \mathrm{mb} and σKpΛπ0=31.0±0.5(stat.)1.2+1.2(syst.) mb\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.

Keywords

Cite

@article{arxiv.2210.10342,
  title  = {First Simultaneous K$^-$p $\rightarrow (\Sigma^0/\Lambda) \, \pi^0$ Cross Sections Measurements at 98 MeV/c},
  author = {Kristian Piscicchia and Magdalena Skurzok and Michael Cargnelli and Raffaele Del Grande and Laura Fabbietti and Johann Marton and Pawel Moskal and Alessandro Scordo and Àngels Ramos and Diana Laura Sirghi and Oton Vazquez Doce and Johann Zmeskal and Slawomir Wycech and Paolo Branchini and Filippo Ceradini and Eryk Czerwinski and Erika De Lucia and Salvatore Fiore and Andrzej Kupsc and Giuseppe Mandaglio and Matteo Martini and Antonio Passeri and Vincenzo Patera and Elena Perez Del Rio and Andrea Selce and Michał Silarski and Catalina Curceanu},
  journal= {arXiv preprint arXiv:2210.10342},
  year   = {2022}
}
R2 v1 2026-06-28T03:58:23.208Z