%0 Journal Article %1 MOLLAEBRAHIMI2023137833 %A Mollaebrahimi, Ali %A Hornung, Christine %A Dickel, Timo %A Amanbayev, Daler %A Kripko-Koncz, Gabriella %A Plaß, Wolfgang R. %A Ayet San Andrés, Samuel %A Beck, Sönke %A Blazhev, Andrey %A Bergmann, Julian %A Geissel, Hans %A Górska, Magdalena %A Grawe, Hubert %A Greiner, Florian %A Haettner, Emma %A Kalantar-Nayestanaki, Nasser %A Miskun, Ivan %A Nowacki, Frédéric %A Scheidenberger, Christoph %A Bagchi, Soumya %A Balabanski, Dimiter L. %A Brencic, Ziga %A Charviakova, Olga %A Constantin, Paul %A Dehghan, Masoumeh %A Ebert, Jens %A Gröf, Lizzy %A Hall, Oscar %A Harakeh, Muhsin N. %A Kaur, Satbir %A Kankainen, Anu %A Knöbel, Ronja %A Kostyleva, Daria A. %A Kurkova, Natalia %A Kuzminchuk, Natalia %A Mardor, Israel %A Nichita, Dragos %A Otto, Jan-Hendrik %A Patyk, Zygmunt %A Pietri, Stephane %A Purushothaman, Sivaji %A Reiter, Moritz Pascal %A Rink, Ann-Kathrin %A Roesch, Heidi %A Spătaru, Anamaria %A Stanic, Goran %A State, Alexandru %A Tanaka, Yoshiki K. %A Vencelj, Matjaz %A Weick, Helmut %A Winfield, John S. %A Yavor, Michael I. %A Zhao, Jianwei %D 2023 %J Physics Letters B %K blazhev myown %P 137833 %R https://doi.org/10.1016/j.physletb.2023.137833 %T Studying Gamow-Teller transitions and the assignment of isomeric and ground states at N = 50 %U https://www.sciencedirect.com/science/article/pii/S0370269323001673 %V 839 %X Direct mass measurements of neutron-deficient nuclides around the N=50 shell closure below 100Sn were performed at the FRS Ion Catcher (FRS-IC) at GSI, Germany. The nuclei were produced by projectile fragmentation of 124Xe, separated in the fragment separator FRS and delivered to the FRS-IC. The masses of 14 ground states and two isomers were measured with relative mass uncertainties down to 1×10−7 using the multiple-reflection time-of-flight mass spectrometer of the FRS-IC, including the first direct mass measurements of 98Cd and 97Rh. A new QEC=5437±67 keV was obtained for 98Cd, resulting in a summed Gamow-Teller (GT) strength for the five observed transitions (0+⟶1+) as B(GT)=2.94−0.28+0.32. Investigation of this result in state-of-the-art shell model approaches accounting for the first time experimentally observed spectrum of GT transitions points to a perfect agreement for N=50 isotones. The excitation energy of the long-lived isomeric state in 94Rh was determined for the first time to be 293±21 keV. This, together with the shell model calculations, allows the level ordering in 94Rh to be understood.

@article{MOLLAEBRAHIMI2023137833, abstract = {Direct mass measurements of neutron-deficient nuclides around the N=50 shell closure below 100Sn were performed at the FRS Ion Catcher (FRS-IC) at GSI, Germany. The nuclei were produced by projectile fragmentation of 124Xe, separated in the fragment separator FRS and delivered to the FRS-IC. The masses of 14 ground states and two isomers were measured with relative mass uncertainties down to 1×10−7 using the multiple-reflection time-of-flight mass spectrometer of the FRS-IC, including the first direct mass measurements of 98Cd and 97Rh. A new QEC=5437±67 keV was obtained for 98Cd, resulting in a summed Gamow-Teller (GT) strength for the five observed transitions (0+⟶1+) as B(GT)=2.94−0.28+0.32. Investigation of this result in state-of-the-art shell model approaches accounting for the first time experimentally observed spectrum of GT transitions points to a perfect agreement for N=50 isotones. The excitation energy of the long-lived isomeric state in 94Rh was determined for the first time to be 293±21 keV. This, together with the shell model calculations, allows the level ordering in 94Rh to be understood.}, added-at = {2023-04-05T18:18:09.000+0200}, author = {Mollaebrahimi, Ali and Hornung, Christine and Dickel, Timo and Amanbayev, Daler and Kripko-Koncz, Gabriella and Plaß, Wolfgang R. and {Ayet San Andrés}, Samuel and Beck, Sönke and Blazhev, Andrey and Bergmann, Julian and Geissel, Hans and Górska, Magdalena and Grawe, Hubert and Greiner, Florian and Haettner, Emma and Kalantar-Nayestanaki, Nasser and Miskun, Ivan and Nowacki, Frédéric and Scheidenberger, Christoph and Bagchi, Soumya and Balabanski, Dimiter L. and Brencic, Ziga and Charviakova, Olga and Constantin, Paul and Dehghan, Masoumeh and Ebert, Jens and Gröf, Lizzy and Hall, Oscar and Harakeh, Muhsin N. and Kaur, Satbir and Kankainen, Anu and Knöbel, Ronja and Kostyleva, Daria A. and Kurkova, Natalia and Kuzminchuk, Natalia and Mardor, Israel and Nichita, Dragos and Otto, Jan-Hendrik and Patyk, Zygmunt and Pietri, Stephane and Purushothaman, Sivaji and Reiter, Moritz Pascal and Rink, Ann-Kathrin and Roesch, Heidi and Spătaru, Anamaria and Stanic, Goran and State, Alexandru and Tanaka, Yoshiki K. and Vencelj, Matjaz and Weick, Helmut and Winfield, John S. and Yavor, Michael I. and Zhao, Jianwei}, biburl = {https://www.bibsonomy.org/bibtex/23b7da56b84d20f0322fbbca708a624d9/ikpcologne}, description = {Studying Gamow-Teller transitions and the assignment of isomeric and ground states at N = 50 - ScienceDirect}, doi = {https://doi.org/10.1016/j.physletb.2023.137833}, interhash = {f75018f8de2c693d740778861540fd26}, intrahash = {3b7da56b84d20f0322fbbca708a624d9}, issn = {0370-2693}, journal = {Physics Letters B}, keywords = {blazhev myown}, pages = 137833, timestamp = {2023-04-05T18:41:00.000+0200}, title = {Studying Gamow-Teller transitions and the assignment of isomeric and ground states at N = 50}, url = {https://www.sciencedirect.com/science/article/pii/S0370269323001673}, volume = 839, year = 2023 }