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The LPCTrap experiment: measurement of the β-ν angular correlation in 6He+ decay using a transparent Paul trap

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Abstract

The LPCTrap experiment is devoted to the precise measurement of the β-ν angular correlation parameter, a βν , in the pure Gamow-Teller decay of 6He+. This experiment is motivated by the search of the presence of tensor type contributions in the weak interaction. The radioactive source is confined in a transparent Paul trap installed at LIRAT, the low energy beam line of the SPIRAL facility. The β-ν correlation is studied by measuring the time of flight of the recoil ions detected in coincidence with the β particles. During the last experiment, a total of 4 × 106 coincidence events have been recorded which would enable to determine the coefficient with a statistical uncertainty of 0.5%. The status of the analysis is presented in this contribution.

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Authors and Affiliations

  1. LPC Caen, ENSICAEN, Université de Caen, CNRS/IN2P3-ENSI, Caen, France

    Ph. Velten, G. Ban, D. Durand, X. Fléchard, E. Liénard, F. Mauger, A. Méry, O. Naviliat-Cuncic, D. Rodríguez & J. C. Thomas

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  1. Ph. Velten
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  2. G. Ban
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  3. D. Durand
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  4. X. Fléchard
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  5. E. Liénard
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  6. F. Mauger
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  7. A. Méry
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  8. O. Naviliat-Cuncic
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  9. D. Rodríguez
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  10. J. C. Thomas
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Correspondence to Ph. Velten.

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Velten, P., Ban, G., Durand, D. et al. The LPCTrap experiment: measurement of the β-ν angular correlation in 6He+ decay using a transparent Paul trap. Hyperfine Interact 199, 29–38 (2011). https://doi.org/10.1007/s10751-011-0298-4

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  • DOI: https://doi.org/10.1007/s10751-011-0298-4

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