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