TY - JOUR AU - Blank, B. et al AU - Agramunt, J. AU - Algora, A. AU - Guadilla, V. AU - Montaner-Piza, A. AU - Morales, A. I. AU - Orrigo, S. E. A. AU - Rubio, B. PY - 2016 DA - 2016// TI - New neutron-deficient isotopes from Kr-78 fragmentation T2 - Phys. Rev. C JO - Physical Review C SP - 061301 EP - 5pp VL - 93 IS - 6 PB - Amer Physical Soc AB - In an experiment with the RIKEN projectile fragment separator called BigRIPS at the RIKEN Nishina Center, the fragmentation of a Kr-78 beam allowed the observation of new neutron-deficient isotopes at the proton drip line. Clean identification spectra could be produced and Se-63, Kr-67, and Kr-68 were identified for the first time. In addition, Ge-59 was also observed. Three of these isotopes, Ge-59, Se-63, and Kr-67, are potential candidates for ground-state two-proton radioactivity. In addition, the isotopes Ge-58, Se-62, and Kr-66 were also sought but without success. The present experiment also allowed the determination of production cross sections for some of the most exotic isotopes. These measurements confirm the trend already observed that the empirical parametrization of fragmentation cross sections, EPAX, significantly overestimates experimental cross sections in this mass region. SN - 2469-9985 UR - http://arxiv.org/abs/1605.05905 UR - https://doi.org/10.1103/PhysRevC.93.061301 DO - 10.1103/PhysRevC.93.061301 LA - English N1 - WOS:000376997700001 ID - Blank_etal2016 ER -