Symmetries in mirror nuclei 31S and 31P
Tonev, D., Angelis, G. d., Goutev, N., Iliev, S., Orlandi, R., Deloncle, I., . . . Yavahchova, M. S. (2018). Symmetries in mirror nuclei 31S and 31P. In N. Arsenyev, A. Bezbakh, I. Rogov, T. Shneidman, & A. Vdovin (Eds.), NSRT18 : 2018 International Conference on Nuclear Structure and Related Topics (pp. 03001). EPJ Web of Conferences, 194. EDP Sciences. doi:10.1051/epjconf/201819403001
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© the Authors, 2018.
Excited states in mirror nuclei 31S and 31P were populated in the 1n and 1p exit channels,
respectively, of the reaction 20Ne + 12C. The beam of 20Ne, with an energy of 33 MeV, was delivered for the
first time by the Piave-Alpi accelerator of the Laboratori Nazionali di Legnaro. Angular correlations of
coincident pairs and Doppler-shift attenuation lifetime measurements in 31S and 31P were performed using the
multidetector array GASP in conjunction with the EUCLIDES charged particle detector. A comparison of the
determined B(E1) strengths of the analog mirror 7/2− → 5/2+ transitions indicates the presence of a violation
of isospin symmetry.
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