Competition between <em>&alpha;</em>-decay and &beta;-decay for heavy andsuperheavy nuclei

HENG Zong-Qiang; SHU Liang-Ping; MENG Ying; HU Ji-Gang; QIAN Jian-Fa

doi:10.1088/1674-1137/38/12/124101

Chinese Physics C> 2014, Vol. 38> Issue(12) : 124101 DOI: 10.1088/1674-1137/38/12/124101

Competition between α-decay and β-decay for heavy andsuperheavy nuclei

Abstract
HTML
Reference
Related

PDF

Abstract：
In this work, the β-stable region for Z≥90 is proposed based on a successful binding energy formula. The calculated β-stable nuclei in the β-stable region are in good agreement with the ones obtained by Möller et al. The half-lives of the nuclei close to the β-stable region are calculated and the competition between α-decay and β-decay is systematically investigated. The calculated half-lives and the suggested decay modes are well in line with the experimental results. The decay modes are mostly β^--decay above the β-stable region. Especially for Z≤111, all the decay modes are β^--decay. Regarding the nuclei above the β-stable region, α-decay and β^--decay (α+β^-) can occur simultaneously when Z≥112. This is a very interesting phenomenon. The competition between α-decay and β-decay is very complex and drastic below the β-stable region. The predictions for half-lives and decay modes of the nuclei with Z=107-110 are presented in detail.

References

[1]

ZHENG S J, XU F R, YUAN C X, QI C. Chin. Phys. C (HEP NP), 2009, 33: 107[2] ZHAO W J, ZHANG Y Q, WANG H L et al. Chin. Phys. C (HEP NP), 2010, 34: 1609[3] XU H S, ZHOU X H, XIAO G Q et al. Nucl. Phys. Rev., 2003, 20: 76[4] ZHANG H F, ZUO W, REN X Z, ZHOU X H, LI J Q. Nucl. Phys. Rev., 2004, 21: 203[5] ZUO W, LI J Q, ZHAO E G. Nucl. Phys. Rev., 2006, 23: 375[6] HUANG W X, WANG Y, ZHU Z C et al. Nucl. Phys. Rev., 2006, 23: 383[7] Hofmann S, Münzenberg G. Rev. Mod. Phys., 2000, 72: 733[8] Koonin S E. Nature, 1991, 354: 468[9] Haxton W C, Johnson C. Phys. Rev. Lett., 1990, 65: 1325[10] Wilk P A, Gregorich K E, Türler A et al. Phys. Rev. Lett., 2000, 85: 2697[11] REN Z Z, XU G O. Phys. Rev. C, 1987, 36: 456[12] ZHANG X P, REN Z Z. Phys. Rev. C, 2006, 73: 014305[13] XU C, REN Z Z. Phys. Rev. C, 2006, 73: 041301(R)[14] REN Y J, REN Z Z. Phys. Rev. C, 2012, 85: 044608[15] PENG J S, LI L L, ZHOU S G, ZHAO E G. Chin. Phys. C (HEP NP), 2008, 32: 634[16] DONG J M, ZHANG H F, WANG Y Z et al. Chin. Phys. C (HEP NP), 2009, 33: 633[17] ZHANG G L, LE X Y. Chin. Phys. C (HEP NP), 2009, 33: 354[18] SU X L, ZHANG H F, ZUO W, LI J Q. Nucl. Phys. Rev., 2009, 26: 177[19] XU C, REN Z Z. Nucl. Phys. Rev., 2013, 30: 308[20] BAO X J, ZHANG H F, LI J Q, ZHANG H F. Nucl. Phys. Rev., 2013, 30: 318[21] DONG T K, REN Z Z. Phys. Rev. C, 2008, 77: 064310[22] Mller P, Nix J R, Kratz K -L. At. Data Nucl. Data Tables, 1997, 66: 131[23] NI D D, REN Z Z, DONG T K et al. Phys. Rev. C, 2008, 78: 044310[24] ZHANG X P, REN Z Z, ZHI Q J et al. J Phys. G: Nucl. Part. Phys., 2007, 34: 2611[25] ZHANG X P, REN Z Z, ZHI Q J. Commun. Theor. Phys., 2007, 48: 1072[26] Audi G, Kondev F G, Wang M et al. Chin. Phys. C (HEP NP), 2012, 36: 1157[27] WANG M, Audi G, Wapstra A H et al. Chin. Phys. C (HEP NP), 2012, 36: 1603[28] GAN Z G, GUO J S, WU X L et al. Eur. Phys. J. A, 2004, 20: 385[29] Oganessian Yu Ts. J Phys. G: Nucl. Part. Phys., 2007, 34: R165[30] Oganessian Yu Ts, Dmitriev S N, Yeremin A V et al. Phys. Rev. C, 2009, 79: 024608[31] Düllmann Ch E et al. Nature, 2002, 418: 859[32] Gupta M, Burrows T W. Nucl. Data Sheets, 2005, 106: 251[33] Dragojeviċ I, Gregorich K E, Düllmann Ch E et al. Phys. Rev. C, 2009, 79: 011602(R)[34] PEI J C, XU F R, LIN Z J et al. Phys. Rev. C, 2007, 76: 044326[35] Dvorak J, Brüchle W, Chelnokov M et al. Phys. Rev. Lett., 2008, 100: 132503[36] ZHANG H F, ZUO W, LI J Q et al. Phys. Rev. C, 2006, 74: 017304[37] Morita K, Morimoto K, Kaji D et al. J Phys. Soc. Jpn., 2004, 73: 1738

[1]	Jun-Gang Deng , Jie-Cheng Zhao , Jiu-Long Chen , Xi-Jun Wu , Xiao-Hua Li . α decay properties of ²⁹⁶Og within the two-potential approach. Chinese Physics C, 2018, 42(4): 044102. doi: 10.1088/1674-1137/42/4/044102
[2]	W. M. Seif , A. S. Hashem . Constraints on the nuclear symmetry energy and its density slope from the α decay process. Chinese Physics C, 2018, 42(6): 064104. doi: 10.1088/1674-1137/42/6/064104
[3]	Jing Zhang , De-Jun E , Hong-Fei Zhang . Effects of shell correction on α decay properties. Chinese Physics C, 2018, 42(9): 094101. doi: 10.1088/1674-1137/42/9/094101
[4]	Yan-Wei Zhao , Shu-Qing Guo , Hong-Fei Zhang . α particle preformation and shell effect for heavy andsuperheavy nuclei. Chinese Physics C, 2018, 42(7): 074103. doi: 10.1088/1674-1137/42/7/074103
[5]	Jun-Hong Liu , Shu-Qing Guo , Xiao-Jun Bao , Hong-Fei Zhang . Predictions of decay modes for the superheavy nuclei most suitable for synthesis. Chinese Physics C, 2017, 41(7): 074106. doi: 10.1088/1674-1137/41/7/074106
[6]	Rui-Wang , Rui-Yao Wang , Yi-Bin Qian , Zhong-Zhou Ren . Signatures of shell evolution in alpha decay across the N=126 shell closure. Chinese Physics C, 2017, 41(6): 064103. doi: 10.1088/1674-1137/41/6/064103
[7]	Jun-Gang Deng , Jun-Hao Cheng , Bo Zheng , Xiao-Hua Li . α decay properties of ²⁹⁷Og within the two-potential approach. Chinese Physics C, 2017, 41(12): 124109. doi: 10.1088/1674-1137/41/12/124109
[8]	V. G. Kartavenko , N. V. Antonenko , A. N. Bezbakh , L. A. Malov , N. Yu. Shirikova , A. V. Sushkov , R. V. Jolos . Quasiparticle structure of superheavy nuclei in α-decay chains of ²⁸⁵Fl and ^291,293Lv. Chinese Physics C, 2017, 41(7): 074105. doi: 10.1088/1674-1137/41/7/074105
[9]	Wenjin Tan , Dongdong Ni , Zhongzhou Ren . Calculations of the β-decay half-lives of neutron-deficient nuclei. Chinese Physics C, 2017, 41(5): 054103. doi: 10.1088/1674-1137/41/5/054103
[10]	S. S. Hosseini , H. Hassanabadi . Theoretical approaches to alpha decay half-lives of super-heavy nuclei. Chinese Physics C, 2017, 41(6): 064101. doi: 10.1088/1674-1137/41/6/064101
[11]	Lin-Feng Zhang , Xue-Wei Xia . Global α-decay study based on the mass table of the relativistic continuum Hartree-Bogoliubov theory. Chinese Physics C, 2016, 40(5): 054102. doi: 10.1088/1674-1137/40/5/054102
[12]	J. N. Pandya , N. R. Soni , N. Devlani , A. K. Rai . Decay rates and electromagnetic transitions of heavy quarkonia. Chinese Physics C, 2015, 39(12): 123101. doi: 10.1088/1674-1137/39/12/123101
[13]	XING Zhi-Zhong , ZHOU Ye-Ling . Geometry of the effective Majorana neutrino mass in the 0νββ decay. Chinese Physics C, 2015, 39(1): 011001. doi: 10.1088/1674-1137/39/1/011001
[14]	E. Javadimanesh , S. Zarrinkamar , H. Rahimov . An angle-dependent potential and alpha-decay half-lives ofdeformed nuclei for 67≤Z≤91. Chinese Physics C, 2013, 37(4): 044101. doi: 10.1088/1674-1137/37/4/044101
[15]	LIU Jing-Jing . Beta decay of nuclide ⁵⁶Fe, ⁵⁶Co, ⁵⁶Ni, ⁵⁶Mn, ⁵⁶Cr and ⁵⁶V due to strong electron screening in stellar interiors. Chinese Physics C, 2010, 34(11): 1700-1703. doi: 10.1088/1674-1137/34/11/006
[16]	ZHANG Di-Da , CHEN Bao-Qiu , MA Zhong-Yu . Systematic studies on α-decay half-lives for super heavy nuclei. Chinese Physics C, 2010, 34(3): 334-339. doi: 10.1088/1674-1137/34/3/006
[17]	ZHANG Jin-Juan , XU Chang , REN Zhong-Zhou . Alpha-decay branching ratios to high-lying excited-states of the ²⁴²Cm→²³⁸Pu→²³⁴U→²³⁰Th→²²⁶Rn decay chain. Chinese Physics C, 2009, 33(9): 764-768. doi: 10.1088/1674-1137/33/9/010
[18]	XU Shu-Wei , XIE Yuan-Xiang , LI Zhan-Kui , WANG Xu-Dong , PAN Qiang-Yan , YU Yong . EC/β⁺ decay of six medium-heavy nuclei. Chinese Physics C, 2009, 33(S1): 142-144. doi: 10.1088/1674-1137/33/S1/045
[19]	ZHANG Hong-Fei , WANG Zu-Kai , CHENG Xi-Meng , LI Jun-Qing , . Alpha decay half-lives of heavy nuclei within a generalized liquid drop model. Chinese Physics C, 2009, 33(S1): 95-97. doi: 10.1088/1674-1137/33/S1/031
[20]	Xu Xiaoji , Huang Wenxue , Ma Ruichang , Gu Zhongdao , Yang Yongfeng , Wang Yanyu , Dong Chengfu . Observation of Beta-Delayed Proton Decay of⁶⁹Kr. Chinese Physics C, 1997, 21(S1): 443-446.

Access

Get Citation

HENG Zong-Qiang, SHU Liang-Ping, MENG Ying, HU Ji-Gang and QIAN Jian-Fa. Competition between α-decay and β-decay for heavy andsuperheavy nuclei[J]. Chinese Physics C, 2014, 38(12): 124101. doi: 10.1088/1674-1137/38/12/124101

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2014-01-15
Revised: 1900-01-01

Article Metric

Article Views(1874)
PDF Downloads(252)
Cited by(0)

Policy on re-use

To reuse of Open Access content published by CPC, for content published under the terms of the Creative Commons Attribution 3.0 license (“CC CY”), the users don’t need to request permission to copy, distribute and display the final published version of the article and to create derivative works, subject to appropriate attribution.

通讯作者: 陈斌, [email protected]

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Competition between α-decay and β-decay for heavy andsuperheavy nuclei

Corresponding author: HENG Zong-Qiang,

Received Date: 2014-01-15

Accepted Date: 1900-01-01

Available Online: 2014-12-05

Abstract: In this work, the β-stable region for Z≥90 is proposed based on a successful binding energy formula. The calculated β-stable nuclei in the β-stable region are in good agreement with the ones obtained by Möller et al. The half-lives of the nuclei close to the β-stable region are calculated and the competition between α-decay and β-decay is systematically investigated. The calculated half-lives and the suggested decay modes are well in line with the experimental results. The decay modes are mostly β^--decay above the β-stable region. Especially for Z≤111, all the decay modes are β^--decay. Regarding the nuclei above the β-stable region, α-decay and β^--decay (α+β^-) can occur simultaneously when Z≥112. This is a very interesting phenomenon. The competition between α-decay and β-decay is very complex and drastic below the β-stable region. The predictions for half-lives and decay modes of the nuclei with Z=107-110 are presented in detail.

HTML

Reference (1)

Competition between α-decay and β-decay for heavy andsuperheavy nuclei

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, [email protected]

Email This Article

Competition between α-decay and β-decay for heavy andsuperheavy nuclei

Corresponding author: HENG Zong-Qiang,

HTML

目录