http://reply.papertrans.cn/3/247/24684/24684-21.png
http://reply.papertrans.cn/3/247/24684/24684-22.png
http://reply.papertrans.cn/3/247/24684/24684-23.png
Submitted on: 11 December 2005.
Revised on: 28 December 2005.
Accepted on: 09 January 2006.
Physics of Particles and Nuclei Letters
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http://reply.papertrans.cn/3/247/24684/24684-26.png
http://reply.papertrans.cn/3/247/24684/24684-27.png
Submitted on: 15 March 2011.
Revised on: 13 April 2011.
Accepted on: 06 May 2011.
Physics of Particles and Nuclei Letters
http://reply.papertrans.cn/3/247/24684/24684-29.png
Submitted on: 13 July 2006.
Revised on: 28 July 2006.
Accepted on: 13 August 2006.
Physics of Particles and Nuclei Letters