Proton-proton correlations observed in two-proton decay of $^{19}$Mg and $^{16}$Ne

I. Mukha; L. Grigorenko; K. Summerer; L. Acosta; M. A. G. Alvarez; E. Casarejos; A. Chatillon; D. Cortina-Gil; J. Espino; A. Fomichev; J. E. Garcia-Ramos; H. Geissel; J. Gomez-Camacho; J. Hofmann; O. Kiselev; A. Korsheninnikov; N. Kurz; Yu. Litvinov; I. Martel; C. Nociforo; W. Ott; M. Pfutzner; C. Rodriguez-Tajes; E. Roeckl; M. Stanoiu; H. Weick; P. J. Woods

doi:10.1103/physrevc.77.061303

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arXiv · 0802.4263

Proton-proton correlations observed in two-proton decay of $^{19}$Mg and $^{16}$Ne

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Abstract

Proton-proton correlations were observed for the two-proton decays of the ground states of $^{19}$Mg and $^{16}$Ne. The trajectories of the respective decay products, $^{17}$Ne+p+p and $^{14}$O+p+p, were measured by using a tracking technique with microstrip detectors. These data were used to reconstruct the angular correlations of fragments projected on planes transverse to the precursor momenta. The measured three-particle correlations reflect a genuine three-body decay mechanism and allowed us to obtain spectroscopic information on the precursors with valence protons in the $sd$ shell.

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I. Mukha, L. Grigorenko, K. Summerer, L. Acosta, M. A. G. Alvarez, E. Casarejos, A. Chatillon, D. Cortina-Gil, J. Espino, A. Fomichev, J. E. Garcia-Ramos, H. Geissel, J. Gomez-Camacho, J. Hofmann, O. Kiselev, A. Korsheninnikov, N. Kurz, Yu. Litvinov, I. Martel, C. Nociforo, W. Ott, M. Pfutzner, C. Rodriguez-Tajes, E. Roeckl, M. Stanoiu, H. Weick, P. J. Woods. 2008-02-28. Proton-proton correlations observed in two-proton decay of $^{19}$Mg and $^{16}$Ne. https://doi.org/10.1103/physrevc.77.061303

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