New measurement of the excited states in B-11 via elastic resonance scattering of Be-10 + p

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	New measurement of the excited states in B-11 via elastic resonance scattering of Be-10 + p
	Liu, YD; Wang, HW; Ma, YG; Cao, XG; Zhang, GQ; Fang, DQ; Lyu, M; He, WB; Dai, ZT; Li, C
刊名	PHYSICAL REVIEW C
	2015
卷号	91 期号:4 页码:—
关键词	LIGHT-NUCLEI A=11-12 ENERGY-LEVELS PARITY STATES SHELL DECAY C-11
英文摘要	The elastic resonance scattering protons decayed from B-11 to the ground state of Be-10 were measured by using the thick-target technique in inverse kinematics at the Heavy Ion Research Facility in Lanzhou (HIRFL). The obtained excitation functions were well described by a multichannel R-matrix procedure under the kinematics process assumption of resonant elastic scattering. The excitation energy of the resonant states ranges from 13.0 to 17.0 MeV, and their resonant parameters such as the resonant energy E-x, the spin-parity J(pi), and the proton-decay partial width Gamma(p) were determined from R-matrix fits to the data. Two of these states around E-x = 14.55 MeV [J(pi) = (3/2(+), 5/2(+)), Gamma(p) = 475 +/- 80 keV] and E-x = 14.74 MeV [J(pi) = 3/2(-), Gamma(p) = 830 +/- 145 keV], and a probably populated state at E-x = 16.18 MeV [J(pi) = (1/2(-), 3/2-), Gamma(p) < 60 keV], are respectively assigned to the well-known states in B-11 at 14.34, 15.29, and 16.43 MeV. The isospin of these three states were previously determined to be T = 3/2, but discrepancies exist in widths and energies due to the current counting statistics and energy resolution. We have compared these states with previous measurements, and the observation of the possibly populated resonance is discussed.
收录类别	SCI
语种	英语
公开日期	2015-12-24
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/24507]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
推荐引用方式 GB/T 7714	Liu, YD,Wang, HW,Ma, YG,et al. New measurement of the excited states in B-11 via elastic resonance scattering of Be-10 + p[J]. PHYSICAL REVIEW C,2015,91(4):—.
APA	Liu, YD.,Wang, HW.,Ma, YG.,Cao, XG.,Zhang, GQ.,...&Wang, JS.(2015).New measurement of the excited states in B-11 via elastic resonance scattering of Be-10 + p.PHYSICAL REVIEW C,91(4),—.
MLA	Liu, YD,et al."New measurement of the excited states in B-11 via elastic resonance scattering of Be-10 + p".PHYSICAL REVIEW C 91.4(2015):—.