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Search for an isomeric state in $^{19}$C

Abstract : A search for an isomeric state in the neutron-rich nucleus $^{19}$C is reported. The existence of an isomer in the nucleus is predicted by shell model calculations which also predicts the ground-state of the nucleus to be 1/2$^+$. An isomeric transition is however not observed in the present investigation. An estimation of upper limit of isomer ratio in the beam is discussed. Furthermore, the non-observation of an isomer includes the possibility of $^{19}$C having a different ground state spin. The $^{17}$C and $^{17}$B nuclei were also investigated for delayed gamma transitions but do not exhibit any isomeric transition.
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http://hal.in2p3.fr/in2p3-00024569
Contributor : Suzanne Robert <>
Submitted on : Tuesday, September 13, 2005 - 4:05:21 PM
Last modification on : Wednesday, September 16, 2020 - 4:07:53 PM

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R. Kanungo, Z. Elekes, H. Baba, Zs. Dombrádi, Zs. Fülö, et al.. Search for an isomeric state in $^{19}$C. Nuclear Physics A, Elsevier, 2005, 757, pp.315-328. ⟨10.1016/j.nuclphysa.2005.04.015⟩. ⟨in2p3-00024569⟩

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