ENTRY A0690 20231228 A106A0690 0 1 SUBENT A0690001 20231228 A106A0690 1 1 BIB 12 46 A0690 1 2 TITLE Alpha-particle production in the reaction 6Li + 28Si atA0690 1 3 near-barrier energies A0690 1 4 AUTHOR (A.Pakou, N.Alamanos, A.Gillibert, M.Kokkoris, A0690 1 5 S.Kossionides, A.Lagoyannis, N.G.Nicolis, A0690 1 6 C.Papachristodoulou, D.Patiris, D.Pierroutsakou, A0690 1 7 E.C.Pollacco, K.Rusek) A0690 1 8 INSTITUTE (2GRCIOA,2FR SAC,2GRCATH,2ITYNAP,3POLIPJ) A0690 1 9 REFERENCE (J,PRL,90,202701,2003) A0690 1 10 REL-REF (M,A0686002,A.Pakou+,J,PL/B,556,21,2003) Elastic A0690 1 11 scattering of 6Li+28Si at near-barrier energies. A0690 1 12 Details of measurement method A0690 1 13 FACILITY (VDGT,2GRCATH) A0690 1 14 SAMPLE A 180-ug/cm2-thick, self-supported natural silicon A0690 1 15 target, tilted by +/- 40 degree (depending on the A0690 1 16 detector position). A liquid-nitrogen cold trap close A0690 1 17 to the target holder reduced the target contamination A0690 1 18 on carbon to minimum. A0690 1 19 MONITOR (14-SI-28(3-LI-6,EL)14-SI-28,,DA) The scattering at A0690 1 20 +/- 15 degree, concerning the present bombarding A0690 1 21 energies, can be considered as being pure Rutherford. A0690 1 22 DETECTOR (TELES,SIBAR,SIBAR) The dE silicon detector was 10 um A0690 1 23 thick, while the E detector was 300 um thick A0690 1 24 measuring the forward-angle scattering. The alpha A0690 1 25 group was well discriminated in the forward detectors A0690 1 26 with the dE-E technique. A0690 1 27 (SIBAR) A thin, 20- or 25- um - thick silicon A0690 1 28 detector measuring the backward scattering. The A0690 1 29 choice of the thickness of the backward detector was A0690 1 30 such as to allow light particles, like alphas from A0690 1 31 breakup transfer and other contaminant reactions A0690 1 32 (6Li+12C), to go through while Li particles stop in A0690 1 33 the detector. A0690 1 34 (SILI) two monitor Si(Li) detectors, 300 um thick, at A0690 1 35 15.degr., fixed on a top table concentric to the A0690 1 36 bottom rotating one and measuring the elastic A0690 1 37 scattering of lithium. A0690 1 38 METHOD (EXTB) 6Li+ beam. Beam currents were of the order of A0690 1 39 30 nA. A0690 1 40 (EDE) The alpha group was well discriminated in the A0690 1 41 forward detectors with the DE-E technique. A0690 1 42 STATUS (TABLE,,A.Pakou,W,PAKOU,20040708) A0690 1 43 (APRVD) Entry approved by A.Pakou A0690 1 44 HISTORY (20040709C) A0690 1 45 (20040708R) Data tables were received from A.Pakou A0690 1 46 (20040716U) Last checking has been done. A0690 1 47 (20231228U) SD: FACILITY added; BIB updated. A0690 1 48 ENDBIB 46 0 A0690 1 49 COMMON 1 3 A0690 1 50 ANG-RSL A0690 1 51 ADEG A0690 1 52 2. A0690 1 53 ENDCOMMON 3 0 A0690 1 54 ENDSUBENT 53 0 A0690 199999 SUBENT A0690002 20040716 0000A069000200001 BIB 3 3 A069000200002 REACTION (14-SI-28(3-LI-6,X)2-HE-4,,DA) A069000200003 PART-DET (A) A069000200004 ERR-ANALYS (ERR-S) Statistical uncertainty only. A069000200005 ENDBIB 3 0 A069000200006 NOCOMMON 0 0 A069000200007 DATA 4 32 A069000200008 EN ANG-CM DATA-CM ERR-S A069000200009 MEV ADEG MB/SR MB/SR A069000200010 7.5 31.7 8.307 0.6 A069000200011 7.5 37.5 8.4 0.44 A069000200012 7.5 40.905 9.101 0.659 A069000200013 7.5 43.5 8. 0.5 A069000200014 7.5 47. 16. 0.9 A069000200015 7.5 49.5 17.8 1.1 A069000200016 7.5 52. 18.2 1. A069000200017 7.5 60.619 14.446 1.054 A069000200018 7.5 67. 9.8 1. A069000200019 9. 29.017 23.385 0.705 A069000200020 9. 33.793 22.857 0.584 A069000200021 9. 37.358 23.123 0.577 A069000200022 9. 40.905 22.959 0.658 A069000200023 9. 44.434 22.557 0.689 A069000200024 9. 46.776 23.881 0.635 A069000200025 9. 50.272 38.041 1.085 A069000200026 9. 53.745 38.258 0.965 A069000200027 9. 57.194 33.508 1.252 A069000200028 9. 60.619 33.037 0.881 A069000200029 9. 64.017 25.554 0.972 A069000200030 11. 36.171 56.988 0.543 A069000200031 11. 42.084 58.94 0.648 A069000200032 11. 47.944 79.5 0.7 A069000200033 11. 53.2 84.3 1.2 A069000200034 11. 59.48 88.452 1.2 A069000200035 11. 65.144 87.091 0.995 A069000200036 11. 70.731 81.062 0.848 A069000200037 13. 30.213 97.854 0.791 A069000200038 13. 39.171 119. 2. A069000200039 13. 47.944 113. 1.179 A069000200040 13. 59.48 99.282 2.11 A069000200041 13. 70.731 75.837 0.956 A069000200042 ENDDATA 34 0 A069000200043 ENDSUBENT 42 0 A069000299999 SUBENT A0690003 20040716 0000A069000300001 BIB 5 10 A069000300002 REACTION (14-SI-28(3-LI-6,X)2-HE-4,,SIG) A069000300003 ANALYSIS (INTAD) The alpha production cross sections deduced by A069000300004 integration of gaussian distribution. A069000300005 COMMENT -By authors. Angular distributions of alpha particlesA069000300006 exhibiting a bell shape. Parameters (centroids and A069000300007 widths) obtained as best fits to this bell shaped part A069000300008 assuming a Gaussian distribution. A069000300009 MISC-COL (MISC1) The centroid of Gaussian distribution. A069000300010 (MISC2) The width of Gaussian distribution. A069000300011 ERR-ANALYS (DATA-ERR) The uncertainty of fitting procedure. A069000300012 ENDBIB 10 0 A069000300013 NOCOMMON 0 0 A069000300014 DATA 5 4 A069000300015 EN DATA DATA-ERR MISC1 MISC2 A069000300016 MEV MB MB ADEG ADEG A069000300017 7.5 20. 14. 53.9 13.3 A069000300018 9. 86. 13. 54.8 19. A069000300019 11. 424. 52. 60. 34. A069000300020 13. 533. 76. 47.6 44.9 A069000300021 ENDDATA 6 0 A069000300022 ENDSUBENT 21 0 A069000399999 ENDENTRY 3 0 A069099999999