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Étude de la fonction d'onde de l'$^{6}$He par la reaction de transfert $^{6}$He(p,t)$^{4}$He: contribution de la configuration à deux tritons.

Abstract : This work is devoted to the study of the importance of the a-2n and triton-triton configurations in 6He. We measured at GANIL, the angular distribution of the transfer reaction 6He(p,t)a at 25 A.MeV with the SPEG spectrometer coupled to the MUST array. The forward and backward c.m. angles were obtained with SPEG. The coincidences of the MUST modules provide the intermediate angles. The elastic scattering 6He(p,p)6He, measured at the same time with the SPEG spectrometer, sets the optical potential 6He+p for the entrance channel of the transfer reaction. DWBA and coupled channels calculations allow to study the sensitivity to the possible different channels of the 6He+p system and specially the 6He breakup with discretized-continuum channels. The comparison between the theoritical and experimental 6He(p,t)a differential cross-section gives a spectroscopic factor close to 1 for the a-2n configuration and between 0.06 and 0.09 for the t-t configuration.
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https://tel.archives-ouvertes.fr/tel-00004091
Contributor : Lydie Giot <>
Submitted on : Monday, January 5, 2004 - 5:04:41 PM
Last modification on : Friday, December 13, 2019 - 2:06:03 PM
Long-term archiving on: : Friday, April 2, 2010 - 7:21:48 PM

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  • HAL Id : tel-00004091, version 1

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Lydie Giot. Étude de la fonction d'onde de l'$^{6}$He par la reaction de transfert $^{6}$He(p,t)$^{4}$He: contribution de la configuration à deux tritons.. Physique Nucléaire Expérimentale [nucl-ex]. Université de Caen, 2003. Français. ⟨tel-00004091⟩

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