New experimental results for the 17 MeV particle created in 8Be

A. Krasznahorkay, M. Csatlós, L. Csige, J. Gulyás, M. Hunyadi, T. J. Ketel, A. Krasznahorkay, I. Kuti, A. Nagy, B. M. Nyakó, N. Sas, J. Tímár, I. Vajda

Research output: Contribution to journalConference article

11 Citations (Scopus)


Electron-positron angular correlations were remeasured for the 17.6 MeV (Jπ = 1+ → 0+) ground state transition in 8Be using an improved setup compared to the one we used previously. Significant deviations from the internal pair creation was observed at large angles in the angular correlations, which supports that, in an intermediate step, a neutral isoscalar particle with a mass of 17.0 ±0.2(stat) ±0.5(sys) MeV/c2 and Jπ = 1+was created.

Original languageEnglish
Article number08010
JournalEPJ Web of Conferences
Publication statusPublished - Mar 22 2017
Event12Ith Quark Confinement and the Hadron Spectrum - Thessaloniki, Greece
Duration: Aug 29 2016Sep 3 2016


ASJC Scopus subject areas

  • Physics and Astronomy(all)

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