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Enhancement of β+-Decay Rate of 22Na in Metal Pd at Low Temperature |
LIAN Gang;SU Jun;WANG Bao-Xiang;JIANG Chao;BAI Xi-Xiang;ZENG
Sheng;ZHENG Yong-Nan;ZHU Sheng-Yun;ZHU Li-Hua; LIU Wei-Ping;LI Zhi-Hong;WANG You-Bao;GUO Bing; LI Yun-Ju;QIN Xing |
| China Institute of Atomic Energy, PO Box 275(46), Beijing 102413 |
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| Cite this article: |
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LIAN Gang, SU Jun, WANG Bao-Xiang et al 2008 Chin. Phys. Lett. 25 70-72 |
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Abstract Temperature dependence of nuclear decays in metallic environments is a controversial issue. We measured the temperature dependence of the β+-decay half-life of 22Na implanted into the metal host of palladium. It is found that the β+-decay half-life of 22Na in the metal Pd cooled to T=15K is shorter by 0.46(14)% than that at room temperature. The result is consistent in sign with, but clearly smaller than, the estimated one by the Debye model.
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| Keywords:
23.40.-s
21.10.Tg
26.20.+f
81.05.Bx
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Received: 16 October 2007
Published: 27 December 2007
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[1] Raiola F et al%, Migliardi P, Lian G, Bonomo C, Gyurky G et al2002 Phys. Lett. B 547 193
[2] Raiola F et al 2004 Eur. Phys. J. A 19 283
[3] Raiola F et al 2005 J. Phys. G 31 1141
[4] Yuki H et al %, Kasagi J, Lipson A G, Ohtsuki T, Baba T1998 JETP Lett. 68 823
[5] Kasagi J et al 2002 J. Phys. Soc. Jpn. 712881 Kasagi J et al 2004 J. Phys. Soc. Jpn. 73 608
[6] Czerski K et al 2001 Europhys. Lett. 54 449 Czerski K, Huke A, Heide P and Ruprecht G 2004 Europhys.Lett. 68 363
[7] Cruz J et al 2005 Phys. Lett. B 624 181
[8] Zahnow D, Rolfs C, Schmidt S and Trautvetter H P 1997 Z.Phys. A 359 211
[9] Kettner\,K U, Becker H W, Strieder F and Rolfs C 2006 J.Phys. G 32 489
[10] Norman E B et al 2001 Phys. Lett. B 519 15
[11] Liu Z Y et al 2003 Chin. Phys. Lett. 20 829
[12] Zhou S H et al 2005 Chin. Phys. Lett. 22565
[13] Limata B N et al 2006 Eur. Phys. J. A 27(s01) 193
[14] Nir-El Y et al 2007 Phys. Rev. C 75 012801
[15] Jeppesen H B et al 2007 Eur. Phys. J. A 3231
[16] Wang B et al 2006 Eur. Phys. J. A 28 375
[17] Spillane T et al 2007 Eur. Phys. J. A 31203
[18] Limata B et al 2006 Eur. Phys. J. A 28 251
[19] Ruprecht G et al 2006 Proceedings of Science(International Symposium on Nuclear Astrophysics: Nuclei in theCosmos IX 171, CERN)
[20] Raiola F et al 2007 Eur. Phys. J. A 32 51
[21] Severijns N et al 2007 Phys. Rev. C 76024304
[22] Stone N J et al 2007 Nucl. Phys. A 793 1 |
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