ENTRY C0157 20111117 C113C015700000001
SUBENT C0157001 20111117 C113C015700100001
BIB 14 51 C015700100002
INSTITUTE (1CANTMF,1USAOBR,1USAWMC,1USAMHG,1USAINU,1USANOT) C015700100003
REFERENCE (J,PR/C,42,2143,199011) C015700100004
AUTHOR (R.E.Warner,E.Cheung,C.F.Perdrisat,V.Punjabi, C015700100005
C.A.Davis,R.Helmer,A.Galonsky,L.Heilbronn,D.Krofchek, C015700100006
S.E.Darden,J.J.Kolata,F.D.Becchetti,P.Schwandt) C015700100007
TITLE Spectral function of p-n pairs in 6Li, from the C015700100008
6Li(p,p alpha)pn reaction at 200 MeV. C015700100009
FACILITY (MESON,1CANTMF) The TRIUMF facility. C015700100010
INC-SOURCE (POLIS) 200-MeV proton beam about 80% polarized and C015700100011
periodically cycled between up and down polarization C015700100012
states. C015700100013
SAMPLE (3-LI-6,ENR=0.9545) A 95.45 % enriched 6Li target of C015700100014
thickness 10.5+-1.0 mg/cm**2. C015700100015
DETECTOR Protons and alpha-particles detected in coincidence C015700100016
by two telescopes coplanar with, and on opposite C015700100017
sides of, the beam. C015700100018
(COIN,SCIN,NAICR) Proton detected by system of 2 C015700100019
plastic scintillators (each 0.63 cm thick) and a C015700100020
NaI(Tl) crystal (12.7-cm-diam x 15.2-cm-thick) 2 C015700100021
meters from the target. One plastic detector provided C015700100022
time-of-flight information, the other, 1.4 cm ahead C015700100023
of the NaI detector, defined the 1.14 msr solid angle.C015700100024
(COIN,SI,SI) Alpha particles detected using C015700100025
telescope of two Si detectors (0.1 and 5 mm thick); C015700100026
solid angle of 1.22 msr defined by brass collimator. C015700100027
METHOD (COINC,EDE,TOF) C015700100028
MONITOR Beam intensity and polarization monitored using C015700100029
elastic scattering in CH-2 polarimeter of analyzing C015700100030
power 0.285, 11.5 m upstream from the target. C015700100031
CORRECTION Corrected for random coincidences and events from the C015700100032
4.55% 7Li in the target (Random coincidences were C015700100033
always <4% of true coincidences except for most C015700100034
inelastic event sample for k = 1.53 1/fm (k is the C015700100035
momentum of each nucleon relative to Q = 0 of the p-n C015700100036
c.m.) where they were 14%. C015700100037
Events were subtracted from those in each proton C015700100038
energy bin to eliminate the remaining reaction tail C015700100039
from higher energy protons, as determined from the C015700100040
previously mentioned response function. C015700100041
A second correction was made to cover the events C015700100042
which should have appeared in that bin, but were C015700100043
lost through nuclear reactions in NaI. C015700100044
Counting losses due to dead time of electronics and C015700100045
data-acquisition computer were negligible (<0.1%). C015700100046
ERR-ANALYS (ERR-S) Statistical uncertainty given. C015700100047
STATUS (TABLE) Data taken from Table 1 of PR/C,42,2143,1990 C015700100048
(APRVD) Approved by R.E. Warner, March 4, 1999. C015700100049
HISTORY (19990126C) VV C015700100050
(20111117A) SD: Subent 003 deleted (outside compilationC015700100051
scope). In Subent 002 col.1, wrongly named as MOM-TRC015700100052
renamed as MISC (outside compilation scope). C015700100053
ENDBIB 51 0 C015700100054
COMMON 1 3 C015700100055
EN C015700100056
MEV C015700100057
200.0 C015700100058
ENDCOMMON 3 0 C015700100059
ENDSUBENT 58 0 C015700199999
SUBENT C0157002 20111117 C113C015700200001
BIB 4 10 C015700200002
REACTION (3-LI-6(P,N+2P)2-HE-4,,DA2/DE2,P/A) C015700200003
The four-body cross section. C015700200004
The detected proton scatters at 56-deg in the p-a c.m. C015700200005
and the undetected p-n pair is left at rest in the C015700200006
lab. C015700200007
EN-SEC (E1,P) of proton at angle ANG1. C015700200008
(E2,A) of alpha at angle ANG2. C015700200009
MISC-COL (MISC) Relative momentum k C015700200010
HISTORY (20111117A) SD: Col.1 from DATA wrongly named as C015700200011
MOM-TR renamed as MISC (outside compilation scope). C015700200012
ENDBIB 10 0 C015700200013
NOCOMMON 0 0 C015700200014
DATA 7 5 C015700200015
ANG1 ANG2 E1 E2 DATA ERR-S C015700200016
MISC C015700200017
ADEG ADEG MEV MEV MB/SR2MEV2 MB/SR2MEV2 C015700200018
1/FM C015700200019
44.3 58.0 154.1 28.4 0.00071 0.00006C015700200020
0.58 C015700200021
43.7 55.3 142.5 27.2 0.00019 0.00004C015700200022
0.8 C015700200023
43.2 51.1 126.3 26.2 0.000086 0.000022C015700200024
1.03 C015700200025
41.9 44.8 104.4 24.9 0.000035 0.000011C015700200026
1.28 C015700200027
40.0 35.9 77.9 24.4 0.000013 0.000008C015700200028
1.53 C015700200029
ENDDATA 14 0 C015700200030
ENDSUBENT 29 0 C015700299999
NOSUBENT C0157003 20111117 C113C015700300001
ENDENTRY 3 0 C015799999999