4 *=== cmkbsg ===========================================================*
6 *----------------------------------------------------------------------*
8 * CoMmon for Kaon-Bar-nucleon SiGmas: *
10 * Created on 07 december 1996 by Alfredo Ferrari & Paola Sala *
12 * Last change on 30-sep-98 by Alfredo Ferrari, INFN-Milan *
14 * List of variables: *
16 * Knbout(io,ir,ip,it) = reaction products indeces, (io=1,2 for the two *
17 * two products, ir=1,6 for the various reactions,*
18 * ip=1,2 for K- or K0bar projectiles, it=1,2 for *
19 * proton or neutron targets) *
20 * Ipkbar(ir,ip,it) = internal reaction identifier for the ir_th *
21 * reaction with ip (1,2 for K- or K0bar) projec- *
22 * tile and it (1,2 for proton or neutron) target *
23 * Lcxkbr(ir,ip,it) = charge exchange flag *
25 * Ir = 1 => elastic (K- N -> K- N or K0bar N -> K0bar N) *
26 * (variable Selas in Sgkbar) *
27 * Ir = 2 => ch.exc. (K- p -> K0bar n or K0bar n -> K- p) *
28 * (variable Scx in Sgkbar) *
29 * Ir = 3 => st.exc. (K- p -> pi- Sigma+ or K0bar n -> pi+ Sigma- *
30 * or K- n -> pi- Sigma0 or K0bar p -> pi0 Sigma+)*
31 * (variable Ssigm in Sgkbar) *
32 * Ir = 4 => st.exc. (K- p -> pi+ Sigma- or K0bar n -> pi- Sigma+ *
33 * or K- n -> pi0 Sigma- or K0bar p -> pi+ Sigma0)*
34 * (variable Ssigmc in Sgkbar) *
35 * Ir = 5 => st.exc. (K- p -> pi0 Lambda or K0bar n -> pi0 Lambda *
36 * or K- n -> pi- Lambda or K0bar p -> pi+ Lambda)*
37 * Ir = 6 => st.exc. (K- p -> pi0 Sigma0 or K0bar n -> pi0 Sigma0)*
39 *----------------------------------------------------------------------*
41 * Thresholds for pion production
42 * ( Kinetic energy threshold for producing particle x in a collision
43 * between p and t giving rise to p,t,x:
44 * Ekth_ptx = m_x ( 2 m_p + 2 m_t + m_x ) / ( 2 m_t ) )
45 * ( Kinetic energy threshold for producing particle x in a collision
46 * between p and t giving rise to a,b,x:
47 * Ekth_pt_abx = ( ( m_a + m_a + m_x )^2 - ( m_p + m_t )^2 )
49 * K-+p-->Lamda+pi0+pi0
50 PARAMETER ( TKMP00 = 0.0 D+00 )
52 PARAMETER ( MKBREA = 6 )
53 PARAMETER ( MKBETB = 200 )
54 PARAMETER ( MKBWAV = 11 )
58 & RE0KBA (MKBETB,MKBWAV,3), RE1KBA (MKBETB,MKBWAV,3),
59 & AIM0KB (MKBETB,MKBWAV,3), AIM1KB (MKBETB,MKBWAV,3),
60 & EKBTAB (MKBETB), NEKBTB, KBNOUT (2,MKBREA,2,2),
61 & IPKBAR (MKBREA,2,2), LCXKBR (MKBREA,2,2)