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Commit | Line | Data |
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fe4da5cc | 1 | * |
2 | * $Id$ | |
3 | * | |
4 | * $Log$ | |
5 | * Revision 1.1.1.1 1995/10/24 10:20:03 cernlib | |
6 | * Geant | |
7 | * | |
8 | * | |
9 | #include "geant321/pilot.h" | |
10 | *CMZ : 3.21/02 29/03/94 15.41.44 by S.Giani | |
11 | *-- Author : | |
12 | *$ CREATE AKEKA.FOR | |
13 | *COPY AKEKA | |
14 | * * | |
15 | *=== akeka ============================================================* | |
16 | * * | |
17 | FUNCTION AKEKA(IT,TO,AMSS) | |
18 | ||
19 | #include "geant321/dblprc.inc" | |
20 | #include "geant321/dimpar.inc" | |
21 | #include "geant321/iounit.inc" | |
22 | C******************************************************************** | |
23 | C VERSION BY J. RANFT | |
24 | C LEIPZIG | |
25 | C LAST CHANGE 05. DECEMBER 83 PERTTI AARNIO | |
26 | C HELSINKI UNIVERSITY OF | |
27 | C TECHNOLOGY, FINLAND | |
28 | C | |
29 | C | |
30 | C TO BE CALLED FROM HIGH ENERGY PRODUCTION | |
31 | C | |
32 | C | |
33 | C SLOPE OF THE ENERGY DISTRIBUTION OF THE HIGHER ENERGY PARTICLES | |
34 | C OF THE INTRANUCLEAR CASCADE PROTONS AND NEUTRONS (ALFA-2P | |
35 | C AND ALFA-2N). NOTE THAT IT IS ASSUMED IN EKEKA AND RAKEKA | |
36 | C THAT ALFA-2N=6*ALFA-1N AND ALFA-2P=6*ALFA-1P. | |
37 | C | |
38 | C NOTE!!!!!!! NON-STANDARD PARTICLE NUMBERING | |
39 | C | |
40 | C INPUT VARIABLES: | |
41 | C IT = TYPE OF THE SECONDARY; 1=PROTON, 2=NEUTRON | |
42 | C TO = KINETIC ENERGY OF THE PRIMARY HADRON IN GEV | |
43 | C AMSS = ATOMIC WEIGHT OF THE NUCLEUS | |
44 | C | |
45 | C SEE RANFT/ROUTTI PARTICLE ACC. VOL 4 P 105 | |
46 | C******************************************************************** | |
47 | C | |
48 | DIMENSION A(2),B(2) | |
49 | SAVE A,B | |
50 | DATA A/0.11D0,0.1D0/ | |
51 | DATA B/0.21D0,0.20D0/ | |
52 | IF (TO .LT. 10.D0) THEN | |
53 | AKEKA=(1.D0-0.001D0*AMSS)*(A(IT)+0.01D0*TO) | |
54 | ELSE | |
55 | AKEKA=B(IT)*(1.D0-0.001D0*AMSS) | |
56 | END IF | |
57 | RETURN | |
58 | END |