β--decay half-lives for waiting point nucleiaround N=82

Chen Ze; Zhang Xiao-Ping; Yang Hong-Ying; Zheng Qiang; Chen Na-Na; Zhi Qi-Jun

doi:10.7498/aps.63.162301

Abstract

Based on the exponential formula of β--decay half-lives for nuclei far from stable line, the half-lives of nuclei around N=82 (R-process waiting point nuclei) are calculated. The results are compared with recent theoretical and experimental data. It is shown that compared with the complicated and time-consuming microscopic calculation, the exponential formula including the shell effect can give the results of β--decay half-lives for R-process waiting point nuclei quicker and better. The results can be used as reliable inputs for the network calculation for nuclei synthesis in cosmos.

Keywords:

Authors and contacts

1.
School of Physics and Electronic Sciences, Guizhou Normal University, Guiyang 550001, China;
2.
School of Physics, Nanjing University, Nanjing 210008, China;
3.
Space Science Institute, Macau University of Science and Technology, Macau 519020, China;
4.
Center for Astronomy Research and Education, Guizhou Normal University, Guiyang 550001, China;
5.
School of Mathematics and Computer Science, Guizhou Normal University, Guiyang 550001, China
Funds: Project supported by the National Natural Science Foundation of China (Grant Nos. 11105079, 11165006, 11365006), the International Science and Technology Cooperation Program of Guizhou Province, China (Grant No. 20117026), the Training Program for Excellent Young Talents in Science and Technology of Guizhou Province, China (Grant No. 2011-29), the Scientific Research Program for the Returned Overseas Chinese Scholars of Guizhou Provine, China (Grant No. 2013-03), the Foundation for Development of Science and Technology of Macau, China (Grant No. 068-2011A), and the Key Program of the Student Scientific Research Foundation for Natural Science of Guizhou Normal University, China.

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Cited By

[1]	Gao J, Luo Z Q, Liu W W, Li G 2010 Chin. Phys. B 19 099701
[2]	Liu J J, Luo Z Q, Liu H L, Lai X J 2007 Chin. Phys. 16 2671
[3]	Burbidge E M, Burbidge G R, Fowler W A, Hoyle F 1957 Rev. Mod. Phys. 29 547
[4]	Cowan J J, Thielemann F K, Truran J W 1991 Phys. Rep. 208 267
[5]	Kratz K L, Bitouzet J P, Thielemann F K, Moller P, Pfeiffer B 1993 Astrophys. J. 403 216
[6]	Woosley S E, Mathews G J, Wilson J R, Hoffman R D, Meyer B S 1994 Astrophys. J. 433 229
[7]	Wang N, Liu M, Wu X Z 2010 Phys. Rev. C 81 044322
[8]	Pfeiffer B, Kratz K L, Thielemann F K, Walters W B 2001 Nucl. Phys. A 693 282
[9]	Hosmer P T, Schatz H, Aprahamian A, Arndt O, Clement R R, Estrade A, Kratz K L, Liddick S N, Mantica P F, Mueller W F, Montes F, Morton A C, Ouellette M, Pellegrini E, Pfeiffer B, Reeder P, Santi P, Steiner M, Stolz A, Tomlin B E, Walters W B, Wöhr A 2005 Phys. Rev. Lett. 94 112501
[10]	Moller P, Nix J R, Kratz K L 1997 At. Data Nucl. Data Tables 66 131
[11]	Borzov I 2006 Nucl. Phys. A 777 645
[12]	Engel J, Bender M, Dobaczewski J, Nazarewicz W, Surman R 1999 Phys. Rev. C 60 014302
[13]	Ni D D, Ren Z Z, Zhi Q J 2011 Sci. China: Phys. Mech. Astron. 55 2397
[14]	Zhi Q J, Caurier E, Cuenca-García J J, Langanke K, Martínez-Pinedo G, Sieja K 2013 Phys. Rev. C 87 025803
[15]	Zhi Q J, Zheng Q 2011 Acta Phys. Sin. 60 102301 (in Chinese) [支启军, 郑强 2011 60 102301]
[16]	Zhang Y M, Xu F R 2008 Acta Phys. Sin. 57 4826 (in Chinese) [张玉美, 许甫荣 2008 57 4826]
[17]	Zhang J, Wang S F 2010 Acta Phys. Sin. 59 1391 (in Chinese) [张洁, 王少峰 2010 59 1391]
[18]	Zhang X P, Ren Z Z 2006 Phys. Rev. C 73 014305
[19]	Zhang X P, Ren Z Z, Zhi Q J, Zheng Q 2007 J. Phys. G 34 2611
[20]	Zhi Q J 2011 Acta Phys. Sin. 60 052101 (in Chinese) [支启军 2011 60 052101]
[21]	National Nuclear Data Center On-line Retrieval System 2014 Nuclear Structure β-Decay Data (New York: Brookhaven National Laboratory)

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Vol. 63, Issue 16 - 2014-08-20

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