Spectroscopy of Heavy Lithium Isotopes ^10-12Li in Stopped Pion Absorption Reactions on the ¹⁴C Target

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• 作者：L.Yu. Korotkova ; ^{korotkovalara@yandex.ru" class="auth_mail" title="E-mail the corresponding author} ; B.A. Chernyshev ; Yu.B. Gurov ; S.V. Lapushkin
• 关键词：lithium isotopes ; nuclear exotics ; pion absorption
• 刊名：Physics Procedia
• 出版年：2015
• 出版时间：2015
• 年：2015
• 卷：74
• 期：Complete
• 页码：3-8
• 全文大小：333 K

文摘

The experimental search for the production of heavy lithium isotopes ^10-12Li was carried out in the stopped π^--mesons absorption reactions on the radioactive target ¹⁴C. Study of ¹⁰Li has been performed in the missing mass spectra in ¹⁴С(π^-, pt)X and ¹⁴С(π^-, dd)X reactions. Three excited states of ¹⁰Li were identified, thus, the broad state with a resonance energy E_r = 6.1 ± 0.1 MeV has the highest excitation energy, compared with the previously observed levels. The resonance parameters of three low-lying excited states of ¹¹Li were determined in the ¹⁴С(π^-, pd)X reaction. In the ¹⁴С(π^-, pp)X reaction evidence for a ¹²Li excited state E_r = 4.0 ± 0.2 MeV and Γ = 1.1 ± 0.2 MeV has been found.