Evidence for strong n-α correlations in the t + t reaction proved by the neutron energy distribution of muon catalyzed t - t fusion

T. Matsuzaki, K. Nagamine, N. Kawamura, K. Ishida, Y. Matsuda, S. N. Nakamura, M. Kato, H. Sugai, M. Tanase, K. Kudo, N. Takeda, G. H. Eaton

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12 Citations (Scopus)

Abstract

We conducted a neutron measurement associated with muon catalyzed t-t fusion reactions, t + t + μ- → α + n + n + μ- + Q (11.33 MeV), in a solid T2 target formed by a high-purity tritium gas (98.9%) with a deuterium component of less than 100 ppm. The observed fusion neutrons showed a continuous energy distribution with a shoulder at 6 MeV and the maximum energy at 9 MeV. This feature is inconsistent with the reaction Q-value and three-particle decay with no particle correlations at the exit channel. The obtained neutron-energy distribution was well reproduced by a simple model with two neutron-energy components. The result suggests strong n - α correlations in the three-particle decay at the exit channel of the t + t reactions which proceed at an extremely low energy through ttμ mesomolecule formation.

Original languageEnglish
Pages (from-to)176-183
Number of pages8
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume557
Issue number3-4
DOIs
Publication statusPublished - 2003 Apr 3

Keywords

  • Muon-catalyzed t-t fusion
  • Particle correlations
  • T-t fusion neutron

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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