Probe the 2s1/2 and 1d3/2 state level inversion with electron-nucleus scattering

WANG Zai-Jun; REN Zhong-Zhou; DONG Tie-Kuang

doi:10.1088/1674-1137/38/2/024102

Chinese Physics C> 2014, Vol. 38> Issue(2) : 024102 DOI: 10.1088/1674-1137/38/2/024102

Probe the 2s_1/2 and 1d_3/2 state level inversion with electron-nucleus scattering

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The neutron-rich even-even nuclei ^26-40Mg, ^28-46Si, ^30-48S, and ^32-56Ar are calculated with the RMF model and the phase-shift electron scattering method. Results show that level inversion of the 2s_1/2 and 1d_3/2 proton states may occur for the magnesium, silicon, sulphur, and argon isotopes with more neutrons away from the stability line. Calculations show that the variation of the central charge densities for ^30-48S, and ^32-56Ar are very sensitive to the 2s_1/2 and 1d_3/2 proton state level inversion, and the level inversion can lead to a large measurable central charge depletion to the charge density distributions for the neutron-rich isotopes. Calculations also show that the charge density differences between the isotopes with and without central charge depletion can reveal not only the level inversion of the 2s_1/2 and 1d_3/2 proton states but also the behavior of the proton wave functions of both states. The results can provide references for the possible study of the nuclear level inversion and nuclear bubble phenomenon with electron scattering off short-lived nuclei at RIKEN or/and GSI in the future. In addition, direct nuclear reaction ⁴⁴S(n, d)⁴³P or ⁴⁴S(³H, α)⁴³P might also be a possible way to study the 2s_1/2 and 1d_3/2 proton state level inversion.

[1]	Harleen Dahiya . Transition magnetic moments of J^P=(3/2)⁺ decuplet to J^P=(1/2)⁺ octet baryons in the chiral constituent quark model. Chinese Physics C, 2018, 42(9): 093102. doi: 10.1088/1674-1137/42/9/093102
[2]	. Lowest-lying spin-1/2 and spin-3/2 baryon magnetic moments in chiral perturbation theory. Chinese Physics C, 2010, 34(9): 1307-1311. doi: 10.1088/1674-1137/34/9/030
[3]	GUO Yu-Ping , PING Rong-Gang , XIAO Zhen-Jun . Study of ππ final state interactions in ψ(2S)→π⁺π^－ J/ψ. Chinese Physics C, 2009, 33(4): 245-248. doi: 10.1088/1674-1137/33/4/001
[4]	J.P.Draayer¹ , G.Popa² , J.G.Hirsch³ , C.E.Vargas³ , 4 . E2 & M1 Strengths in Deformed Nuclei:Application of the Pseudo-SU(3) Model. Chinese Physics C, 2004, 28(12): 1297-1301.
[5]	QIAN Hai-Jie , SU Run , WANG Jia-Ou , WU Xiang , DONG Yu-Hui , WU Zi-Yu , WANG Yu-Tian , WEI Long , , . O 1s2p2p Auger Process Investigation of the Pr_1-x Sr_x MnO₃ System. Chinese Physics C, 2003, 27(S1): 40-44.
[6]	JIANG JunQin . Study of the Vacuum State for 2+1 Dimensional SU(2) Lattice Gauge Field Theory. Chinese Physics C, 2000, 24(10): 922-926.
[7]	HUI Ping , CHEN QiZhou . 0⁺⁺ Glueball Mass in 2+1-D SU(3) LGT. Chinese Physics C, 2000, 24(9): 805-809.
[8]	Hul Ping . (2+1)-D SU(3)0⁺⁺ Glueball Wavefunction. Chinese Physics C, 1999, 23(4): 340-346.
[9]	Liu Yaoyang , Sun Lazhen , Jiang Xiangdong . SU(3)_C×SU(2)_I×U(1)_Y Theory of Composite Leptons. Chinese Physics C, 1998, 22(11): 996-1003.
[10]	Chen Qizhou , Fang Xiyan , Guo Shouhong . Calculation of Vacuum State for 2+1-Dimensional SU(3) Lattice Gauge Theory. Chinese Physics C, 1995, 19(5): 398-404.
[11]	Chen Qizhou , Fang Xiyan , Guo Shouhong . Calculation of Vacuum State for 2+1-Dimensional SU(3) Lattice Gauge Theory. Chinese Physics C, 1995, 19(S3): 265-272.
[12]	LI Zhi-Bing , ZHENG Wei-Hong , GUO Shuo-Hong . THE STRING TENSION OF 2+1 DIMENSIONAL SU(2) GAUGE THEORIES. Chinese Physics C, 1989, 13(7): 670-672.
[13]	Luo Xiangqian , Chen Qizhou , Guo Shuohong . Vacuum State of 2+1 Dimensional SU(2) Lattice Gauge Theory With Fermions and Spontaneous Chiral Symmetry Breaking. Chinese Physics C, 1989, 13(S2): 157-164.
[14]	Liu Jinming , Zheng Weihong , Guo Shuohong . The Mass Gap in 2 + 1 Dimensional SU(3) Lattice Gauge Theory. Chinese Physics C, 1988, 12(S2): 137-142.
[15]	LIU Jin-Ming , ZHENG Wei-Hong , GUO Shuo-Hong . THE MASS GAP IN 2+1 DIMENSIONAL SU(3) LATTICE CAUGE THEORY. Chinese Physics C, 1988, 12(3): 420-424.
[16]	ZHU Zhong-Yuan , ZHANG Bo . TADPOLE DIAGRAM,ΔI=1/2 ENHANCEMENT AND ε′/ε. Chinese Physics C, 1988, 12(1): 50-54.
[17]	SONG Xiao-Tong , CHING Cheng-Rui , HO Tso-Hsiu . APPROXIMATE B.S. WAVE FUNCTIONS FOR AN ELECTROMAGNETIC BOUND SYSTEM OF SPINS (1/2, 1/2) OR (1/2, 1/2) WITH UNEQUAL MASSES. Chinese Physics C, 1984, 8(5): 531-538.
[18]	LIU YONG , TIAN XIAO-CEN , YANG TSE-SEN . A MICROSCOPIC CALCULATION OF THE COLLECTIVE SPECTRA OF THE NEUTRON CONFIGURATIONS (CLOSED SHELLS)⁵⁰ (d_5/2g_7/2s_1/2d_3/2h_1/2)¹² BASED ON DYSON REPRESENTATION OF THE INTERACTING BOSON MODEL. Chinese Physics C, 1983, 7(6): 724-734.
[19]	MA ZHONG-QI , DONG FANG-XIAO , YUE ZONG-WU , ZHOU XIAN-JIAN , XUE PEI-YOU . DISCUSSION OF A SU(2)×U(1)×S₃ MODEL WITH TWO HIGGS DOUBLETS AND CALCULATION OF CABIBBO-LIKE-PARAMETERS. Chinese Physics C, 1981, 5(3): 298-306.
[20]	HE JU , ZHANG ZHAO-XI , HE ZUO-XIU . THE APPROXIMATE B-S WAVE FUNCTION FOR ELECTROMAGNETIC BOUND STATES CONSISTING OF A FERMION AND AN ANTI-FERMION OF SPIN 1/2. Chinese Physics C, 1979, 3(6): 688-696.

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WANG Zai-Jun, REN Zhong-Zhou and DONG Tie-Kuang. Probe the 2s_1/2 and 1d_3/2 state level inversion with electron-nucleus scattering[J]. Chinese Physics C, 2014, 38(2): 024102. doi: 10.1088/1674-1137/38/2/024102

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Received: 2013-04-01
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Probe the 2s_1/2 and 1d_3/2 state level inversion with electron-nucleus scattering

Corresponding author: WANG Zai-Jun,

Received Date: 2013-04-01
Accepted Date: 1900-01-01
Available Online: 2014-02-05

Abstract: The neutron-rich even-even nuclei ^26-40Mg, ^28-46Si, ^30-48S, and ^32-56Ar are calculated with the RMF model and the phase-shift electron scattering method. Results show that level inversion of the 2s_1/2 and 1d_3/2 proton states may occur for the magnesium, silicon, sulphur, and argon isotopes with more neutrons away from the stability line. Calculations show that the variation of the central charge densities for ^30-48S, and ^32-56Ar are very sensitive to the 2s_1/2 and 1d_3/2 proton state level inversion, and the level inversion can lead to a large measurable central charge depletion to the charge density distributions for the neutron-rich isotopes. Calculations also show that the charge density differences between the isotopes with and without central charge depletion can reveal not only the level inversion of the 2s_1/2 and 1d_3/2 proton states but also the behavior of the proton wave functions of both states. The results can provide references for the possible study of the nuclear level inversion and nuclear bubble phenomenon with electron scattering off short-lived nuclei at RIKEN or/and GSI in the future. In addition, direct nuclear reaction ⁴⁴S(n, d)⁴³P or ⁴⁴S(³H, α)⁴³P might also be a possible way to study the 2s_1/2 and 1d_3/2 proton state level inversion.