Search for Muon Catalyzed 3Hed Fusion

V. D. Fotev, V. A. Ganzha, K. A. Ivshin, P. V. Kravchenko, P. A. Kravtsov, E. M. Maev, A. V. Nadtochiy, A. N. Solovev, I. N. Solovyev, E. M. Spiridenkov, A. A. Vasilyev, A. A. Vorobyov, N. I. Voropaev, M. E. Vznuzdaev, P. Kammel, E. T. Muldoon, R. A. Ryan, D. J. Salvat, D. Prindle, M. HildebrandtB. Lauss, C. Petitjean, T. Gorringe, R. M. Carey, F. E. Gray

Research output: Contribution to journalArticlepeer-review


Abstract—This report presents the results of an experiment aimed at observation of the muon catalyzed 3Hed fusion reaction 3He + (3.66 MeV) + p (14.64 MeV) + μ which might occur after a negative muon stop in the D2 + 3He gas mixture. The basic element of the experimental setup is a Time Projection Chamber (TPC) which can detect the incoming muons and the products of the fusion reaction. The TPC operated with the D2 + 3He (5%) gas mixture at 31 K temperature. About 3Heμd molecules were produced with only 2 registered candidates for the muon catalyzed 3Hed fusion with the expected background events. This gives an upper limit for the probability of the fusion decay of the 3Heμd molecule at 90% C.L. Also presented are the measured formation rate of the 3Heμd molecule and the probability of the fast muon transfer from the excited to the ground state of the atom. The obtained results are compared with the previously published data.

Original languageEnglish
Pages (from-to)672-684
Number of pages13
JournalPhysics of Particles and Nuclei
Issue number3
StatePublished - Jun 2024

Bibliographical note

Publisher Copyright:
© Pleiades Publishing, Ltd. 2024. ISSN 1063-7796, Physics of Particles and Nuclei, 2024, Vol. 55, No. 3, pp. 672–684. Pleiades Publishing, Ltd., 2024.

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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