ENTRY O1320 20070524 O030O132000000001 SUBENT O1320001 20070524 O030O132000100001 BIB 11 39 O132000100002 TITLE Exclusive breakup of Li-6 by Pb-208 at coulomb barrier O132000100003 energies. O132000100004 AUTHOR (C.Signorini, A.Edifizi, M.Mazzocco, M.Lunardon, O132000100005 D.Fabris, A.Vitturi, P.Scopel, F.Soramel, L.Stroe, O132000100006 G.Prete, E.Fioretto, M.Cinausero, M.Trotta, A.Brondi, O132000100007 R.Moro, G.La Rana, E.Vardaci, A.Ordine, G.Inglima, O132000100008 M.La Commara, D.Pierroutsakou, M.Romoli, M.Sandoli, O132000100009 A.Diaz-Torres, I.J.Thompson, Z.H.Liu) O132000100010 REFERENCE (J,PR/C,67,044607,2003) O132000100011 REL-REF (R,O1615001,C.SIGNORINI+,J,EPJ/A,10,249,2001) More O132000100012 details of experiment. O132000100013 INSTITUTE (2ITYPAD) Physics department and INFN, via Marzolo O132000100014 and INFN, Legnaro Nazionally Laboratory, Padova,ItalyO132000100015 (2ITYUDN) Physics department and INFN, Udine O132000100016 (2ITYNAP) Compl. Univ. di Monte S.Angelo, Napoli, ItalyO132000100017 (2GERJLU) O132000100018 (2UK SUR) O132000100019 (3CPRAEP) O132000100020 FACILITY (VDGT,2ITYPAD) The LNL-tandem van de Graaff acceleratorO132000100021 with energies ranging from 31 to 39-MeV. O132000100022 SAMPLE Pb-208 targets of two different thicknesses were used- O132000100023 150-mug/cm**2 with 10-mug/cm**2 carbon backing O132000100024 and 200-mug/cm**2 self-supporting. O132000100025 METHOD (EDE) O132000100026 (COINC) The exclusive breakup process was studied via O132000100027 alpha+d and alpha+p coincidences. O132000100028 DETECTOR (TELES) Detector was the 8-pi-lp device, consisting O132000100029 of two parts-a 'wall' and a'ball.The ball consists O132000100030 of 126-telescopes, each telescope consist of 300-mum O132000100031 delta silicon detector, followed by 5-mm CsI(Tl) O132000100032 E-detector. O132000100033 ADD-RES (COMP).Coupled-channels calculation. O132000100034 Spectra of a ring B-delta-E detector collected with O132000100035 three different targets-Pb-208 200-mug/cm**2(E=31-MeV)O132000100036 and Pb-208 150-mug/cm**2 onto C-12 10-mug/cm**2(E=31--O132000100037 MeV) and only C-12 20-mug/cm**2(E=29-MeV) were O132000100038 reported on figure 2. O132000100039 HISTORY (20070523C) sb O132000100040 (20070524U) Last checking has been done. O132000100041 ENDBIB 39 0 O132000100042 NOCOMMON 0 0 O132000100043 ENDSUBENT 42 0 O132000199999 SUBENT O1320002 20070524 O030O132000200001 BIB 4 9 O132000200002 REACTION (82-PB-208(3-LI-6,X)2-HE-4,,DA) Fig 4 O132000200003 COMMENT *By authors*.The cross sections for the inclusive O132000200004 breakup events were evaluated from the counts of the O132000200005 alpha bump plus the events occurring between the Li-6 O132000200006 elastic peak and the Li-6 inelastic peak from the firstO132000200007 excited state of Pb-208. O132000200008 STATUS (CURVE) O132000200009 ERR-ANALYS (ERR-DIG).Digitizing error of data. O132000200010 (ANG-ERR-D).Digitizing error of angle. O132000200011 ENDBIB 9 0 O132000200012 COMMON 2 3 O132000200013 ANG-ERR-D ERR-DIG O132000200014 ADEG PER-CENT O132000200015 1.1 10. O132000200016 ENDCOMMON 3 0 O132000200017 DATA 3 27 O132000200018 EN ANG-CM DATA-CM O132000200019 MEV ADEG MB/SR O132000200020 31. 61.8 6.1 O132000200021 31. 77.6 19.8 O132000200022 31. 106.9 35. O132000200023 31. 121.9 37. O132000200024 31. 138.4 35. O132000200025 31. 155.6 28.8 O132000200026 33. 44.4 7.2 O132000200027 33. 62.4 19.2 O132000200028 33. 78.9 46. O132000200029 33. 107.2 53. O132000200030 33. 122.8 34. O132000200031 33. 142.8 22.5 O132000200032 33. 155.5 18.4 O132000200033 35. 40.7 18.6 O132000200034 35. 57.9 46. O132000200035 35. 76. 75. O132000200036 35. 103.2 50. O132000200037 35. 121.4 29.7 O132000200038 35. 138.8 20.1 O132000200039 35. 154.7 12.8 O132000200040 39. 43.2 60. O132000200041 39. 61.1 112. O132000200042 39. 79. 99. O132000200043 39. 104.4 28.8 O132000200044 39. 122.4 11.5 O132000200045 39. 138.8 6.6 O132000200046 39. 154.5 4.3 O132000200047 ENDDATA 29 0 O132000200048 ENDSUBENT 47 0 O132000299999 SUBENT O1320003 20070524 O030O132000300001 BIB 5 25 O132000300002 REACTION (82-PB-208(3-LI-6,D+A)82-PB-208,,DA,A) Fig 4 O132000300003 COMMENT *By authors*.The cross sections for the exclusive O132000300004 breakup events were evaluated for the a-p channel from O132000300005 the coincidence data only. For the a-d channel was O132000300006 added to the coincidence data the contribution from O132000300007 the peak at 1.5-MeV relative energy. O132000300008 The exclusive angular distributions from both onefold O132000300009 and twofold coincidence events turned out to be the O132000300010 same within statistical errors. O132000300011 CORRECTION *By authors*.The exclusive coincidence data have been O132000300012 corrected for various factors affecting the efficiency O132000300013 of the detector system- O132000300014 dead area is approximately 20%, O132000300015 reduced efficiency of the deuteron(proton) detection- O132000300016 the correction factors(fraction of lost counts) finallyO132000300017 adopted for the deuterons were 38%, 34%, 30% and 22% O132000300018 for 31-, 33-, 35- and 39-MeV beam energy,respectively. O132000300019 In proton case an average fixed correction factor of O132000300020 39% for each energy was applied. O132000300021 Absence of detector at backward angles(angle > or equalO132000300022 163-degree) at forward angles(angle < or equal O132000300023 34-degree) and around 90-degree(10-degree). O132000300024 STATUS (CURVE) O132000300025 ERR-ANALYS (ERR-DIG).Digitizing error of data. O132000300026 (ANG-ERR-D).Digitizing error of angle. O132000300027 ENDBIB 25 0 O132000300028 COMMON 2 3 O132000300029 ANG-ERR-D ERR-DIG O132000300030 ADEG PER-CENT O132000300031 1.1 10. O132000300032 ENDCOMMON 3 0 O132000300033 DATA 3 27 O132000300034 EN ANG-CM DATA-CM O132000300035 MEV ADEG MB/SR O132000300036 31. 43.8 2.88 O132000300037 31. 60.3 4.2 O132000300038 31. 78.3 3.07 O132000300039 31. 104.6 4.5 O132000300040 31. 122.6 4.5 O132000300041 31. 139.1 3.7 O132000300042 31. 156.3 2.71 O132000300043 33. 44.4 5.6 O132000300044 33. 60.7 5.5 O132000300045 33. 79.4 5.7 O132000300046 33. 105.4 5.5 O132000300047 33. 123.3 4. O132000300048 33. 138.8 2.5 O132000300049 33. 155.1 1.39 O132000300050 35. 43.1 6.4 O132000300051 35. 58.9 7.2 O132000300052 35. 76.3 6.2 O132000300053 35. 104.2 6.8 O132000300054 35. 121.6 3.6 O132000300055 35. 137.6 2.14 O132000300056 35. 154.2 1.36 O132000300057 39. 42.6 10.8 O132000300058 39. 60.5 13. O132000300059 39. 77.7 11.5 O132000300060 39. 121.8 0.67 O132000300061 39. 139.1 0.303 O132000300062 39. 155.5 0.136 O132000300063 ENDDATA 29 0 O132000300064 ENDSUBENT 63 0 O132000399999 SUBENT O1320004 20070524 O030O132000400001 BIB 5 26 O132000400002 REACTION (82-PB-208(3-LI-6,P+A)82-PB-209,,DA,A) Fig 4 O132000400003 COMMENT *By authors*.The cross sections for the exclusive O132000400004 breakup events were evaluated for the a-p channel from O132000400005 the coincidence data only. For the a-d channel was O132000400006 added to the coincidence data the contribution from O132000400007 the peak at 1.5-MeV relative energy. O132000400008 The exclusive angular distributions from both onefold O132000400009 and twofold coincidence events turned out to be the O132000400010 same within statistical errors. O132000400011 CORRECTION *By authors*.The exclusive coincidence data have been O132000400012 corrected for various factors affecting the efficiency O132000400013 of the detector system- O132000400014 dead area is approximately 20%, O132000400015 reduced efficiency of the deuteron(proton) detection- O132000400016 the correction factors(fraction of lost counts) finallyO132000400017 adopted for the deuterons were 38%, 34%, 30% and 22% O132000400018 for 31-, 33-, 35- and 39-MeV beam energy,respectively. O132000400019 In proton case an average fixed correction factor of O132000400020 39% for each energy was applied. O132000400021 Absence of detector at backward angles(angle > or equalO132000400022 163-degree) at forward angles(angle < or equal O132000400023 34-degree) and around 90-degree(10-degree). O132000400024 STATUS (CURVE) O132000400025 ERR-ANALYS (DATA-ERR).The error is reported by authors on fig. O132000400026 (ERR-DIG).Digitizing error of data. O132000400027 (ANG-ERR-D).Digitizing error of angle. O132000400028 ENDBIB 26 0 O132000400029 COMMON 2 3 O132000400030 ANG-ERR-D ERR-DIG O132000400031 ADEG PER-CENT O132000400032 1.1 10. O132000400033 ENDCOMMON 3 0 O132000400034 DATA 4 28 O132000400035 EN ANG-CM DATA-CM DATA-ERR O132000400036 MEV ADEG MB/SR PER-CENT O132000400037 31. 43.1 3.5 O132000400038 31. 60.3 0.78 O132000400039 31. 78.3 1.45 O132000400040 31. 104.6 3.3 O132000400041 31. 122.5 1.28 O132000400042 31. 137.5 1.45 O132000400043 31. 155.5 0.65 O132000400044 33. 44.2 1.4 O132000400045 33. 60.5 1. O132000400046 33. 79.3 2.86 O132000400047 33. 106.1 3.8 O132000400048 33. 123.1 1.06 O132000400049 33. 138.7 0.97 O132000400050 33. 155.7 0.37 12. O132000400051 35. 42.5 1.54 O132000400052 35. 58.3 2.34 O132000400053 35. 77.1 4. O132000400054 35. 104.3 3.9 O132000400055 35. 121.1 1.03 O132000400056 35. 138.5 0.74 O132000400057 35. 155.9 0.286 15. O132000400058 39. 43.4 3.1 O132000400059 39. 59.8 5.1 O132000400060 39. 78.4 6.2 O132000400061 39. 105.3 2.61 O132000400062 39. 122.6 0.44 O132000400063 39. 139.1 0.252 O132000400064 39. 155.5 0.083 13. O132000400065 ENDDATA 30 0 O132000400066 ENDSUBENT 65 0 O132000499999 SUBENT O1320005 20070524 O030O132000500001 BIB 7 16 O132000500002 REACTION (82-PB-208(3-LI-6,X)2-HE-4,,SIG) O132000500003 ANALYSIS (INTAD) O132000500004 SAMPLE The self-supporting Pb-208 target (with no influences O132000500005 from the carbon backing) O132000500006 REL-REF (A,O1615003,C.SIGNARINI+,J,EPJ/A,10,249,2001) O132000500007 (D,C0800001,G.R.KELLY+,J,PR/C,63,024601,2000) O132000500008 STATUS (TABLE) Table 3 O132000500009 ERR-ANALYS (ERR-S).The error is reported by authors in table O132000500010 the absolute accuracy of the this data is better than O132000500011 5%. O132000500012 COMMENT *By authors*.The final total cross sections data are O132000500013 slightly larger than the data of EPJ/A,10,249,2001 O132000500014 (see Rel-Ref) because this time the contribution from O132000500015 the alpha hitting the delta-E detector together with O132000500016 the light fragments could be evaluated thanks to the O132000500017 good statistics and added to the alpha-bump. O132000500018 ENDBIB 16 0 O132000500019 NOCOMMON 0 0 O132000500020 DATA 3 4 O132000500021 EN DATA ERR-S O132000500022 MEV MB MB O132000500023 31. 248.9 0.6 O132000500024 33. 397.4 0.5 O132000500025 35. 467.2 0.6 O132000500026 39. 593.5 0.6 O132000500027 ENDDATA 6 0 O132000500028 ENDSUBENT 27 0 O132000599999 SUBENT O1320006 20070524 O030O132000600001 BIB 5 10 O132000600002 REACTION ((82-PB-208(3-LI-6,D+A)82-PB-208,,SIG)+ O132000600003 (82-PB-208(3-LI-6,P+A)82-PB-209,,SIG)) O132000600004 ANALYSIS (INTAD) O132000600005 SAMPLE The self-supporting Pb-208 target (with no influences O132000600006 from the carbon backing) O132000600007 STATUS (TABLE) Table 3 O132000600008 ERR-ANALYS (ERR-S).The error is reported by authors in table O132000600009 the absolute accuracy of around 20%. This value was O132000600010 estimated from the maximum university (approx. 30%) of O132000600011 the various corrections. O132000600012 ENDBIB 10 0 O132000600013 NOCOMMON 0 0 O132000600014 DATA 3 4 O132000600015 EN DATA ERR-S O132000600016 MEV MB MB O132000600017 31. 65.5 0.8 O132000600018 33. 93.5 1.3 O132000600019 35. 94.3 2.7 O132000600020 39. 118.5 5.5 O132000600021 ENDDATA 6 0 O132000600022 ENDSUBENT 21 0 O132000699999 ENDENTRY 6 0 O132099999999