Possible Synthesis of Z=117 through <SUP>48</SUP>Ca+<SUP>249</SUP>Bk

ZHANG Qun-wu; SHEN Cai-wan; #; ZHAO En-guang 

doi:10.11804/NuclPhysRev.26.02.107

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ZHANG Qun-wu, SHEN Cai-wan, #, ZHAO En-guang . Possible Synthesis of Z=117 through 48Ca+249Bk[J]. Nuclear Physics Review, 2009, 26(2): 107-111. doi: 10.11804/NuclPhysRev.26.02.107

Citation:

ZHANG Qun-wu, SHEN Cai-wan, #, ZHAO En-guang . Possible Synthesis of Z=117 through ⁴⁸Ca+²⁴⁹Bk[J]. Nuclear Physics Review, 2009, 26(2): 107-111. doi: 10.11804/NuclPhysRev.26.02.107

Possible Synthesis of Z=117 through ⁴⁸Ca+²⁴⁹Bk

doi: 10.11804/NuclPhysRev.26.02.107

1 School of Science Huzhou Teachers College, Huzhou 313000, Zhejiang, China; 2 Institute of Theoretical Physics, Chinese Academy of Science, Beijing 100080, China

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2009-06-20

Abstract

A possible way to synthesize superheavy element (Z=117) by using ⁴⁸Ca+²⁴⁹Bk reaction is studied with two step model. The fusion process is divided into two steps: the sticking process that the projectile approaches to the target to get contacted with the target by passing over the Coulomb barrier， and the formation process that the dinuclear system evolves from contact into compound nuclear state. Combined with the statistical evaporation model， the formation cross section of ²⁹⁷117 is calculated. The result shows that the residue for 3 neutron evaporation is 0.34 pb at excitation energy E*=31 MeV， which is detectable in laboratory.
- superheavy element,
- langevin equation,
- cross section
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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

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Possible Synthesis of Z=117 through ⁴⁸Ca+²⁴⁹Bk

doi: 10.11804/NuclPhysRev.26.02.107

1 School of Science Huzhou Teachers College, Huzhou 313000, Zhejiang, China; 2 Institute of Theoretical Physics, Chinese Academy of Science, Beijing 100080, China

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2009-06-20

Key words:

Abstract: A possible way to synthesize superheavy element (Z=117) by using ⁴⁸Ca+²⁴⁹Bk reaction is studied with two step model. The fusion process is divided into two steps: the sticking process that the projectile approaches to the target to get contacted with the target by passing over the Coulomb barrier， and the formation process that the dinuclear system evolves from contact into compound nuclear state. Combined with the statistical evaporation model， the formation cross section of ²⁹⁷117 is calculated. The result shows that the residue for 3 neutron evaporation is 0.34 pb at excitation energy E*=31 MeV， which is detectable in laboratory.

ZHANG Qun-wu, SHEN Cai-wan, #, ZHAO En-guang . Possible Synthesis of Z=117 through 48Ca+249Bk[J]. Nuclear Physics Review, 2009, 26(2): 107-111. doi: 10.11804/NuclPhysRev.26.02.107

Citation:

ZHANG Qun-wu, SHEN Cai-wan, #, ZHAO En-guang . Possible Synthesis of Z=117 through ⁴⁸Ca+²⁴⁹Bk[J]. Nuclear Physics Review, 2009, 26(2): 107-111. doi: 10.11804/NuclPhysRev.26.02.107