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36
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36 h[eZklvx gZ[ex^Z_fZy bgl_gkb\ghklv [m^_l hij_^_eylvky k\_jldhc iehlghklb k\h[h^guo b aZiheg_gguo khklhygbc kh\f_klgh k fZljbp_c \_jhylghklbi_j_oh^ZdZd\kemqZ_hilbq_kdboi_j_oh^h\ahgZ→ahgZ (cfI jZa^_e LZdZy kblmZpby gZ[ex^Z_lky \ MNWK b hgZ ijb\h^bl d kbevghc aZ\bkbfhklb ki_dljZ \Ze_glguo mjh\g_c hl wg_j]bb nhlhgh\ < kemqZ_ JNWK dbg_lbq_kdZy wg_j]by \Ze_glguo we_dljhgh\ lZdh\Z qlh dhg_qgu_ khklhygby k\h[h^gh]h we_dljhgZ iheghklvx ebr_gu kljmdlmju b gZ[ex^Z_fZy iehlghklv khklhygbc ijZdlbq_kdb iheghklvx khhl\_lkl\m_l gZqZevghc iehlghklb aZiheg_gguo khklhygbc Ihwlhfm JNWK \Ze_glguo we_dljhgh\ ij_^klZ\eyxl kh[hc dZd [u dhibx jZkij_^_e_gby iehlghklb aZgyluokhklhygbckdhwnnbpb_glhfaZ\bkysbfhlhj[blZevgh]hfhf_glZ aZgylh]hkhklhygby I ( E ) = σ nl ( E ) ⋅ n( E ) , (7.1.) ]^_k_q_gb_nhlhbhgbaZpbb 2 ∫ (7.2.) σ nl ~ Ψ p* r̂Ψ nl V Ψj –\hegh\Zynmgdpbyk\h[h^gh]hnhlhwe_dljhgZ\u[blh]hd\Zglhfhνba k\yaZggh]hkhklhygbyΨnl. & Iehlghklv khklhygbc n(E) hij_^_ey_lky aZdhghf ^bki_jkbb ? k ) b fh`_l[ulv\uqbke_gZbaahgghckljmdlmjug_ihkj_^kl\_gghihnhjfme_ (2Ω o ) & & n( E ) = ( 2π ) 3 ∑∫ ( p Ω3; ( )) δ E − E p k dk , (7.3.)
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