Experimental investigations of the hypernucleus Λ4H

P. Achenbach, F. Schulz, S. Aulenbacher, J. Beričič, S. Bleser, R. Böhm, D. Bosnar, L. Correa, M. O. Distler, A. Esser, H. Fonvieille, I. Friščić, Y. Fujii, M. Fujita, T. Gogami, H. Kanda, M. Kaneta, S. Kegel, Y. Kohl, W. KusakaA. Margaryan, H. Merkel, M. Mihovilovič, U. Müller, S. Nagao, S. N. Nakamura, J. Pochodzalla, A. Sanchez Lorente, B. S. Schlimme, M. Schoth, C. Sfienti, S. Širca, M. Steinen, Y. Takahashi, L. Tang, M. Thiel, K. Tsukada, A. Tyukin, A. Weber

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)

Abstract

Negatively charged pions from two-body decays of stopped Λ4H hypernuclei were studied in 2012 at the Mainz Microtron MAMI, Germany. The momenta of the decay-pions were measured with unprecedented precision by using high-resolution magnetic spectrometers. A challenge of the experiment was the tagging of kaons from associated K+? production off a Be target at very forward angles. In the year 2014, this experiment was continued with a better control of the systematic uncertainties, with better suppression of coincident and random background, improved particle identification, and with higher luminosities. Another key point of the progress was the improvement in the absolute momentum calibration of the magnetic spectrometers.

Original languageEnglish
Article number07001
JournalEPJ Web of Conferences
Volume113
DOIs
Publication statusPublished - 2016 Mar 25
Event21st International Conference on Few-Body Problems in Physics, FB 2015 - Chicago, United States
Duration: 2015 May 182015 May 22

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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