Skip to main navigation Skip to search Skip to main content

High-resolution hypernuclear decay pion spectroscopy at MAMI and future

  • S. Nagao
  • , P. Achenbach
  • , T. Akiyama
  • , J. Bernauer
  • , R. Böhm
  • , M. O. Distler
  • , L. Doria
  • , P. Eckert
  • , A. Esser
  • , F. Garibaldi
  • , J. Geratz
  • , T. Gogami
  • , C. Helmel
  • , M. Hoek
  • , T. Ishige
  • , M. Kaneta
  • , R. Kino
  • , P. Klag
  • , W. Lauth
  • , P. Markowitz
  • H. Merkel, M. Mizuno, U. Müller, S. N. Nakamura, K. Nishi, K. Nishida, K. Okuyama, J. Pochodzalla, J. Reinhold, S. B. Schlimme, C. Sfienti, T. Shao, M. Steinen, L. Tang, M. Thiel, Y. Toyama, G. M. Urciuoli
  • The University of Tokyo
  • Thomas Jefferson National Accelerator Facility
  • Tohoku University
  • Facility for Antiproton and Ion Research
  • Johannes Gutenberg University Mainz
  • National Institute for Nuclear Physics
  • Kyoto University
  • Florida International University
  • Hampton University
  • Chubu University

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Hypernuclear decay pion spectroscopy was established in 2012 at MAMI as a mass spectroscopy method for light hypernuclei. A monochromatic pion peak from 4ΛH was successfully observed, and the Λ binding energy was determined to be BΛ = 2.157±0.005(stat.)±0.077(syst.) MeV in the 2014 run. In 2022, an upgrade experiment for 3ΛH spectroscopy was conducted using a newly developed Li target. The absolute electron beam energy will be measured by the synchrotron radiation interferometry, which will be applied with the spectrometer calibration to improve the systematic error. The decay pion spectroscopy is planned to be performed at JLab Hall-C, which would significantly increase the statistics thanks to the higher energy beam, the better K+ identification, and the faster data acquisition system. This experiment has been submitted as a Letter of Intent in JLab PAC51. The upgraded decay pion spectroscopy method is expected to provide new, accurate hypernuclear data, which will contribute to the advancement of our understanding of hypernuclear physics.

Original languageEnglish
Article number232
JournalNuovo Cimento della Societa Italiana di Fisica C
Volume47
Issue number4
DOIs
StatePublished - Jul 2024

Fingerprint

Dive into the research topics of 'High-resolution hypernuclear decay pion spectroscopy at MAMI and future'. Together they form a unique fingerprint.

Cite this