Measurement of low-lying states inB9

Formation and decay of resonance states in Be9 and B9 nuclei: Microscopic three-cluster model investigations

“…[24][25][26][27][28][29][30][31], where the structure and different processes taking place in these nuclei have been investigated.…”

First excited12+state in9B

“…In any case, the relevant region of excitation energy was dominated by the tails of other states in 9 B. The current work was instigated by the results of two experimental papers: Tiede et al [16] and Akimune et al [25]. In 1995, Tiede [16] albeit with limited statistics.…”

“…The current work was instigated by the results of two experimental papers: Tiede et al [16] and Akimune et al [25]. In 1995, Tiede [16] albeit with limited statistics. This work was also the first to include interference effects between the states, which could be a significant effect in these nuclei.…”

“…Previous experiments have reported observation of the first excited 1 2 + state in 9 B ranging from E x = 0.73 ± 0.05 MeV and width ≈ 0.3 MeV with a three state fit to 6 Li( 6 Li,t) reaction data [16], to E x = 1.8 ± 0.2 MeV and width = 0.9 ± 0.3 MeV using the 10 B( 3 He,α) reaction [17]. Numerous values between these have been reported [1,4,[18][19][20][21][22][23][24].…”

“…This paper called for the reanalysis of the Tiede [16] data to include this new state at 3.8 MeV because it may affect the contribution to the fitted spectrum from the 1 2 − state, and thus the 1 2 + state-this could then affect the previous results and provide definite information on low-lying 9 B structure.…”