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

Memo CP-E/071
Date:
To:
From:
Subject:
Reference:

June 6, 2005
Distribution
OTSUKA Naohiko
Energy spectrum as function of sum of kinetic energies of several particles
CP-D/434

We have two comments on Memo CP-D/434:
1) This is an extension of “Energy distribution for a correlated pair” (LEXFOR Secondary
Energy Distributions item.2) to N-particle case, because relative energy E rel is the sum of
kinetic energies of two particles in their c.m. system, and M. Meister et al. considers the sumof kinetic energies of 3 particles in their c.m. frame (=outgoing 6He or 8He rest frame).
Therefore it would be better to keep consistency between two particles case and N-particles
case, for example,- Codes for particles considered (SF7): a+b+… or a/b/…
- Heading for the sum of kinetic energies in their c.m. system: E-CM or E-RL-CM?
(-CM means center of mass system for particles considered, not for projectile-target)
2) JCPRG has compiled similar quantity in E1797.002, in which energy spectrum for 1H(14Be,n+p+12Be)n is shown for the sum of kinetic energies for n+p+12Be. We converted the sum ofkinetic energies to excitation energy of intermediate state (14Be) by adding three-body decayenergy to the sum of kinetic energies. This could be another solution for M. Meister et al.
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

Sample of coded entry (E1797.002)
S. Takeuchi et al., Phys. Lett., B515 (2001) 255 Fig.2.
ENTRY
SUBENT
BIB…
PART-DET…
METHOD
FACILITYANALYSIS…
ENDBIB
COMMONEN
MEV/A
74.
ENDCOMMONENDSUBENTSUBENT
BIB
REACTION
EN-SECMISC-COL…
STATUS
ENDBIB
COMMON
ERR-1
PER-CENT
10.
ENDCOMMON
DATA
E-EXC
FLAG
MEV
NO-DIM
16.7701.
16.8452.
…

E1797
E1797001
1320041129
20041129
52

E179700000001
E179700100001
E179700100002(P)(N)(4-BE-12)

E179700100018
E179700100019
E179700100020(COINC) Detect 12Be, proton and neutron in
E179700100026
coincidence.
E179700100027(TOF) To determine velocities of the decay particles
E179700100028(CYCLO,2JPNIPC) Primary beam of 100 AMeV 18O on a 1110 E179700100029
mg/cm**2 thic 9Be target
E179700100030(PRJFS,2JPNIPC) Secondary beam of 14Be selected by the E179700100031
RIKEN Projectile Fragment Separator
E179700100032(RIPS) [T.Kubo et al., Nucl. Instrum. E179700100033
Methods B70(1992)309].
E179700100034
Invariant mass method
E179700100035
523EN-RSL
MEV/A
8.

0
3E-RSL
MEV
0.15

30590
E1797002
20041129
726(1-H-1(4-BE-14,N)5-B-14,,DE)(E-EXC,5-B-14) Excitation energy of 14B calculated byE(d) + 16.77 MeV where E(d) is decayenergy defined in Eq. (1) of thereference. Threshold energy is 16.77
MeV for the 12Be + p + n channel.
(MISC1) Decay energy E(d) defined in Eq.(1) of thereference (Total kinetic energies!)(TABLE) Data (Fig.2 (a) and (c), p258 in reference)
obtained from web site of S.Takeuchi
2601337020

MISC1DATA

ERR-S

MISC2

MISC2-ERR

MEV

MB/MEV

MB/MEV

MB/MEV

MB/MEV

0.000

0.000

0.075

-0.442

0.000
0.442

-0.0230.023

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