Study of Borromean halo nuclei by the neutron wall with simulation

LIU Long-Xiang; SUN Zhi-Yu; YUE Ke; XIAO Guo-Qing; CHEN Xi-Meng; YU Yu-Hong; ZHANG Xue-Heng; WANG Shi-Tao; ANG Shu-Wen; ZHOU Yong; YAN Duo; FANG Fang

doi:10.1088/1674-1137/37/11/116202

Chinese Physics C> 2013, Vol. 37> Issue(11) : 116202 DOI: 10.1088/1674-1137/37/11/116202

Study of Borromean halo nuclei by the neutron wall with simulation

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Abstract：
The model of three-body Borromean halo nuclei breakup was described by using standard phase space distributions and the Monte Carlo simulation method was established to resolve the detection problem of two neutrons produced from breakup reaction on the neutron wall detector. For ⁶He case,overall resolution σE_k for the Gaussian part of the detector response and the detection efficiency including solid angle acceptance with regard to the excitation energy E_k are obtained by the simulation of two neutrons from ⁶He breakup into the neutron wall. The effects of the algorithm on the angular and energy correlations of the fragments are briefly discussed.

References

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XU Hua-Gen,XU Hu-Shan,LI Wen-Fei et al. HEP NP,2006,30: 57 (in Chinese)[2] YU Yu-Hong. Development and Construction of Fast Plastic Scintillator Detector Array for External Target Experiment at CSRm (Ph.D.Thesis). Lanzhou: Institute of Modern Physics,CAS,2009 (in Chinese)[3] LIU Long-Xiang,SUN Zhi-Yu,XIAO Guo-Qing et al. Study of the Data Ananlysis Process of the Neutron Wall with Simulation. Chin. Phys. C (HEP NP),2013,37(9): 096201[4] Braaten E,Hammer H W. Phys. Rep. 2006,428: 259[5] Aumann T,Aleksandro D,Axelsson L et al. Phys. Rev. C,1999,59: 1252[6] Chulkov L V,Simon H,Thompson I J et al. Nucl. Phys. A,2005,759: 23[7] Agostinelli S,Allsion J,Amako K et al. Nucl. Instrum. Methods A,2003,506: 250[8] Ershov S N,Grigorenko L V,Vaagen J S et al. J. Phys. G: Nucl. art. Phys. 2010,37: 064026

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LIU Long-Xiang, SUN Zhi-Yu, YUE Ke, XIAO Guo-Qing, CHEN Xi-Meng, YU Yu-Hong, ZHANG Xue-Heng, WANG Shi-Tao, ANG Shu-Wen, ZHOU Yong, YAN Duo and FANG Fang. Study of Borromean halo nuclei by the neutron wall with simulation[J]. Chinese Physics C, 2013, 37(11): 116202. doi: 10.1088/1674-1137/37/11/116202

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Received: 2013-01-12
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Study of Borromean halo nuclei by the neutron wall with simulation

Corresponding author: SUN Zhi-Yu,

Received Date: 2013-01-12

Accepted Date: 1900-01-01

Available Online: 2013-11-05

Abstract: The model of three-body Borromean halo nuclei breakup was described by using standard phase space distributions and the Monte Carlo simulation method was established to resolve the detection problem of two neutrons produced from breakup reaction on the neutron wall detector. For ⁶He case,overall resolution σE_k for the Gaussian part of the detector response and the detection efficiency including solid angle acceptance with regard to the excitation energy E_k are obtained by the simulation of two neutrons from ⁶He breakup into the neutron wall. The effects of the algorithm on the angular and energy correlations of the fragments are briefly discussed.

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Study of Borromean halo nuclei by the neutron wall with simulation

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