Japan Charged-Particle Nuclear Reaction Data Group
Division of Physics, Graduate School of Science
Hokkaido University
060-0810 Sapporo, JAPANE-mail: nrdf@jcprg.org
Internet: http://www.jcprg.org/Telephone +81(JPN)-11-706-2684
Facsimile +81(JPN)-11-706-4850

Memo CP-E/065
Date:
To:
From:
Subject:
Reference:

February 24, 2005
Distribution
OTSUKA Naohiko and Victoria McLane
IPA as parameter code and short-hand nuclide code in SF7
CP-C/354

We have studied the procedure of C1118.003 (Fig. 5 a-c, p024609-5) and 006 (Fig. 9, 10, 13 and14), because we found many theoretists from JCPRG in the citation list of this article.
1) We can find an example of the intermediate state before break up in LEXFOR “PartialReaction - Reactions that lead by the same particle sequence to the same reaction products”
Examples:a.) 12C(n,n')12*C → α + 8*Be → 2αb.) 12C(n,n')12*C → 3 α…
REACTION
EN-SEC

1(6-C-12(N,N+2A)2-HE-4,PAR,SIG)
2(6-C-12(N,N+2A)2-HE-4,PAR,SIG)
1(E-LVL,4-BE-8)2(E-LVL,6-C-12)

So SF3=”3A” (We can use INL in C1118.002, 004 and 005 because the degrees of freedomof 8Be and α does not appear in these subentries).
2) We agree on the use of short-hand nuclide code BE8 in SF7. We may add this code in Dict. 33.
3) Use of IPA in SF6 looks to be good. We can link IPA and particle considered easily.
4) IPA refers angle between 12C and beam axis (not two 12C), so IPA is referred by RSD.
5) PAR is characterized by levels of 8Be and 12C in final state and 12C before break up. So wemust specify these three levels (LEVEL-PROP can specify these levels).
6) The 2nd angle given, between 8Be and α is for the projection of the relative velocity if the 2particles. Therefore, we recommend using MSC in SF8 until such time as we may encountermore such data.

We propose one heading in addition to two headings proposed in CP-C/354:
Dictionary 24 (Headings)
ANG1-CM-MN
ANG1-CM-MX
ANG2-RL-CM

Lower limit of 1st angle in c.m. system
Upper limit of 1st angle in c.m. system
2nd angle between 2 outgoing particles in c.m. systemCoding sample based on comments:SUBENTBIBREACTION

C1118003
20050111
47(6-C-12(6-C-12,3A)6-C-12,PAR,IPA/DA,RSD/A+BE8,MSC)- ANG1-CM is angle between outgoing 12C and beam in
the center of mass system between two 12C.
- ANG2-RL-CM is angle between relative velocity ofalpha-8Be and beam in the center of mass system
between alpha and 8Be.
EN-SEC(E-LVL1,6-C-12) Intermediate state(E-LVL2,4-BE-8)(E-LVL3,6-C-12)
LEVEL-PROP (6-C-12,E-LVL=0.00,SPIN=0,PARITY=+1.)(6-C-12,E-LVL=9.64,SPIN=3,PARITY=-1.)
ERR-ANALYS (DATA-ERR) No information given
STATUS
Data taken from Fig. 5 of the journal article
ENDBIB
70COMMON
23E-LVL1E-LVL2
E-LVL3
ANG1-CM-MN ANG1-CM-MX ANG2-RSL
MEV
MEV
MEV
ADEG
ADEG
ADEG
9.64
0.0
0.0
40.0
95.0
10.0
ENDCOMMON
30
DATA
539
ANG2-RL-CM EN-CM
DATA-CM
DATA-ERR
ADEG
MEV
MU-B/SR
MU-B/SR5.
2.540E+01 3.054E+03 2.181E+02
5.
2.579E+01 2.727E+03 1.818E+02
5.
2.698E+01 6.145E+03 5.090E+02…

C1118
C1118
C1118
C1118
C1118
C1118
C1118
C1118
C1118
C1118
C1118
C1118
C1118
C1118
C1118
C1118
C1118
C1118
C1118
C1118
C1118
C1118
C1118
C1118
C1118
C1118
C1118

33333333333333333333333333
3

1234
56789101112
13
14
15
16
1718
19
20
21
22
23
24
25
2627

Geometry:- θ cm and ψ are given under headings ANG1-CM and ANG2-RL-CM, respectively.
- 12C (3-), 8Be (g.s.), and 12C (0+) levels are given under E-LVL1, 2 and 3, respectively.

12C (3-, 9.64MeV)

8Be (g.s.)ψαθcm

Beam axis

12C (0+, g.s.)Center of mass system for 12C-12C

Distribution:
S. Babykina, CAJaD
S. Dunaeva, NDS
H. Henriksson, NEA-DB
S. Maev, CJD
C. Nordborg, NEA-DB
O. Schwerer, NDS
V. Varlamov, CDFE
V. Zerkin, NDS

J.H. Chang, KAERI
Z.G. Ge, CNDC
A. Kaltchenko, KINR
V.N. Manokhin, CJD
P. Obložinský, NNDC
S. Tákacs, ATOMKI
M. Vlasov, KINR
Y.X. Zhuang, CNDC

M. Chiba, JCPRG
O. Gritzay, KINR
K. Katō, JCPRG
V. McLane, NNDC
A. Ohnishi, JCPRG
S. Taova, VNIIEF
M. Wirtz, NDS
EXFOR, NEA-DB

F.E. Chukreev, CAJaD
A. Hasegawa, JAERI
M. Lammer, NDS
M. Mikhaylyukova, CJD
D. Rochman, NNDC
T. Tárkányi, ATOMKI
H.W. Yu, CNDC
JCPRG Distribution