Article
Observation of two-proton radioactivity of Mg19 by tracking the decay products
Author/s | Mukha, I.
González Álvarez, Marcos Aurelio Espino Navas, José Manuel Gómez Camacho, Joaquín José Sümmerer, K. Acosta, Luis Casarejos, E. Chatillon, A. |
Department | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear |
Publication Date | 2007-10-29 |
Deposit Date | 2017-07-18 |
Published in |
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Abstract | We have observed the two-proton radioactivity of the previously unknown 19Mg ground state by tracking the decay products in-flight. For the first time, the trajectories of the 2p-decay products, 17Ne+p+p, have been measured ... We have observed the two-proton radioactivity of the previously unknown 19Mg ground state by tracking the decay products in-flight. For the first time, the trajectories of the 2p-decay products, 17Ne+p+p, have been measured by using tracking microstrip detectors which allowed us to reconstruct the 2p-decay vertices and fragment correlations. The half-life of 19Mg deduced from the measured vertex distribution is 4.0(15) ps in the system of 19Mg. The Q value of the 2p decay of the 19Mg ground state inferred from the measured p−p−17Ne correlations is 0.75(5) MeV. |
Funding agencies | Ministerio de Educación y Ciencia (MEC). España |
Project ID. | FPA2003-05958
FPA2006-13807-C02-01 |
Citation | Mukha, I., González Álvarez, M.A., Espino Navas, J.M., Gómez Camacho, J.J., Sümmerer, K., Acosta, L.,...,Chatillon, A. (2007). Observation of two-proton radioactivity of Mg19 by tracking the decay products. Physical Review Letters, 99 (18), 182501-1-182501-5. |
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