Physics Procedia 24 (2012) 724 – 730

1875-3892 © 2011 Published by Elsevier B.V. Selection and/or peer-review under responsibility of ICAPIE Organization Committee.doi:10.1016/j.phpro.2012.02.107

Available online at www.sciencedirect.com

Available online at www.sciencedirect.com

© 2011 Published by Elsevier B.V. Selection and/or peer-review under responsibility of ICAPIE Organization Committee.

Yang Yang et al. / Physics Procedia 24 (2012) 724 – 730 725

—

—

726 Yang Yang et al. / Physics Procedia 24 (2012) 724 – 730

—

∑≠−=

=

. (1)

∑ ∑∑−= =−=

×=

. (2)

∏

∑

=

==

. (3)

Yang Yang et al. / Physics Procedia 24 (2012) 724 – 730 727

τ τ τ τ τ τ τ τ τ

τ τ τ τ τ τ τ−∞ −∞ −∞

−∞ −∞

= +

= − + − − +

+ − −

∫ ∫ ∫∫ ∫

.

(4)

= +

. (5)

= .(6)

=

= + = +∑ . (7)

= =

= + = + = +∑ ∑ . (8)

728 Yang Yang et al. / Physics Procedia 24 (2012) 724 – 730

= +

. (9)

Yang Yang et al. / Physics Procedia 24 (2012) 724 – 730 729

+ − +− −−

≥+

–

730 Yang Yang et al. / Physics Procedia 24 (2012) 724 – 730

Ⅲ