Лекции по основам кинематики элементарных процессов. Строковский Е.А. - 144 стр.

UptoLike

Составители: 

P P
1
P
2
P
3
s
1
s
2
(1 + 2) (2 + 3)
P
9 4 3=2
P 1+2+3 s
s
12
s
1
=(P
1
+ P
2
)
2
=(P−P
3
)
2
s
23
s
2
=(P
2
+ P
3
)
2
=(P−P
1
)
2
s
31
s
3
=(P
3
+ P
1
)
2
=(P−P
2
)
2
s
1
+ s
2
+ s
3
= s + m
2
1
+ m
2
2
+ m
2
3
.
P 1+2+3 s
1
,s
2
H "!" #0       0  *
!  P    1X *! P1  P2  P3     4 8
  !     s1  s2 1   3  
 (1 + 2)  (2 + 3)  3         3   
   !"  0      3  4

  N  1  0       1  
1     P       C   
 / 2  FA   / 1   /G0   1 5 
  5     2 .7   5    9 − 4 − 3 = 2
1    0   C       ;/ C 
   C    0 1 1      0
      1    
   4 % % 45 1     1
    2 F"!"G 1 C        2
1 1  P → 1 + 2 + 3 F  "!"O s   1 
          G?
               s12   ≡ s1 = (P1 + P2 )2 = (P − P3 )2
               s23   ≡ s2 = (P2 + P3 )2 = (P − P1 )2           F"!"G
                                        2               2
               s31   ≡ s3 = (P3 + P1 ) = (P − P2 )

>          ?
                 s1 + s2 + s3 = s + m21 + m22 + m23 .          F"! G

# %8+%9 %&%
    P → 1 + 2 + 3 2   1   Fs1 , s2 G
C 1      0       7 /
                                 "BB