ENTRY O1635 20080825 O036O163500000001 SUBENT O1635001 20080825 O036O163500100001 BIB 12 45 O163500100002 TITLE Breakup reaction study of the Brunnian nuclus C-10. O163500100003 AUTHOR (N.Curtis, N.L.Achoui, N.I.Ashwood, H.G.Bohlen, O163500100004 W.N.Catford, N.M.Clarke, M.Freer, P.J.Haigh, B.Laurent,O163500100005 N.A.Orr, N.P.Patterson, N.Soic, J.S.Thomas, V.Ziman) O163500100006 INSTITUTE (2UK BIR) O163500100007 (2FR CAE) O163500100008 (2GERBER) O163500100009 (2UK SUR) O163500100010 (3CRORBZ) O163500100011 REFERENCE (J,PR/C,77,021301,2008) Rapid communications O163500100012 SAMPLE C-12 target, thickness 20-, 45- and 95-mug/cm**2, O163500100013 were used. O163500100014 DETECTOR (TELES,SISD,CSICR) The detector telescope consisted of O163500100015 four separate elements, each (50*50)-mm**2 in active O163500100016 area. The first two elements-silicon resistive strip O163500100017 detectors(RSD). Each RSD was 500-mum thick and O163500100018 segmented into 16 independent 3-mm wide strips. O163500100019 The third elements was a 1000-mum thick silicon double-O163500100020 sided strip detector(DSSD) placed 148 mm from the O163500100021 target. This was segmented into 32 independent 3-mm O163500100022 wide strips with 16 horizontal strips and 16 vertical O163500100023 strips. The final element, 160 mm from the target, was O163500100024 an array of 64 CsI scintillators, each 20 mm in thick O163500100025 and with an area of (6*6)mm**2. O163500100026 The FWHM energy resolution was approx. 200 keV for the O163500100027 silicon detectors and approx. 1.5 for the CsI crystal. O163500100028 FACILITY (ACCEL,2FR GAN) O163500100029 (PRJFS,2FR GAN) C-10 beam was produced following the O163500100030 fragmentation of a 60 MeV/nuclon C-12 primary beam in O163500100031 a 3-mm thick Be production target. The secondary beam O163500100032 was purified to 98.6% C-10 using the LISE3 spectrometerO163500100033 and had an average intensity of 2.5*10E+4 particles O163500100034 per second. O163500100035 METHOD (EXTB) O163500100036 (EDE) O163500100037 (COINC) O163500100038 STATUS (TABLE).Tables in text O163500100039 HISTORY (20080402C) S.B. O163500100040 CORRECTION Cross sections were calculated by correcting the O163500100041 experimental yields with detection efficiencies O163500100042 obtained from a Monte Carlo simulation of the reaction O163500100043 and detector array. O163500100044 ERR-ANALYS (ERR-T).Statistical uncertainty and uncertainty due to O163500100045 target thickness. O163500100046 (ERR-1).Uncertainty due to target thickness. O163500100047 ENDBIB 45 0 O163500100048 COMMON 2 3 O163500100049 EN ERR-1 O163500100050 MEV/A PER-CENT O163500100051 33.3 20. O163500100052 ENDCOMMON 3 0 O163500100053 ENDSUBENT 52 0 O163500199999 SUBENT O1635002 20080825 O036O163500200001 BIB 4 5 O163500200002 REACTION (6-C-12(6-C-10,2P+X)4-BE-8,PAR,SIG) O163500200003 PART-DET (A,P) O163500200004 EN-SEC (E-LVL,4-BE-8) O163500200005 COMMENT *By authors*.Cross section for the production of O163500200006 Be-8(g.s)=A+A in the M=3(aap) channel. O163500200007 ENDBIB 5 0 O163500200008 COMMON 1 3 O163500200009 E-LVL O163500200010 MEV O163500200011 0. O163500200012 ENDCOMMON 3 0 O163500200013 DATA 2 1 O163500200014 DATA ERR-T O163500200015 MB MB O163500200016 42.6 8.8 O163500200017 ENDDATA 3 0 O163500200018 ENDSUBENT 17 0 O163500299999 SUBENT O1635003 20080825 O036O163500300001 BIB 4 6 O163500300002 REACTION (6-C-12(6-C-10,2P+X)4-BE-8,SEQ/PAR,SIG) O163500300003 PART-DET (A,P) O163500300004 EN-SEC (E-LVL1,5-B-9) O163500300005 (E-LVL2,4-BE-8) O163500300006 COMMENT *By authors*.Cross section for the production of O163500300007 B-9(g.s)=Be-8+p in the M=3(aap) channel. O163500300008 ENDBIB 6 0 O163500300009 COMMON 2 3 O163500300010 E-LVL1 E-LVL2 O163500300011 MEV MEV O163500300012 0. 0. O163500300013 ENDCOMMON 3 0 O163500300014 DATA 2 1 O163500300015 DATA ERR-T O163500300016 MB MB O163500300017 30.5 6.3 O163500300018 ENDDATA 3 0 O163500300019 ENDSUBENT 18 0 O163500399999 SUBENT O1635004 20080825 O036O163500400001 BIB 4 14 O163500400002 REACTION (6-C-12(6-C-10,P+A+X)3-LI-5,PAR,SIG) O163500400003 Tentatively cross section O163500400004 PART-DET (A,P) O163500400005 EN-SEC (E-EXC,3-LI-5) O163500400006 COMMENT *By authors*.Cross section for the production of O163500400007 Li-5(g.s-900 keV)=a+p in the M=3(app) channel. O163500400008 Although the calculations do describe the data it is O163500400009 recognized that the width of the Li-5(g.s) is not wellO163500400010 known, there are possible a+p final state O163500400011 interactions. The cross section for this channel is O163500400012 therefore not unambiguously determined and hence is O163500400013 only given tentatively. A gate was applied across the O163500400014 0 to 900 keV range to select the Li-5(g.s) events O163500400015 resulting from the decay of Be-6. O163500400016 ENDBIB 14 0 O163500400017 COMMON 2 3 O163500400018 E-EXC-MIN E-EXC-MAX O163500400019 MEV MEV O163500400020 0. 0.9 O163500400021 ENDCOMMON 3 0 O163500400022 DATA 2 1 O163500400023 DATA ERR-T O163500400024 MB MB O163500400025 17.4 3.6 O163500400026 ENDDATA 3 0 O163500400027 ENDSUBENT 26 0 O163500499999 SUBENT O1635005 20080825 O036O163500500001 BIB 4 6 O163500500002 REACTION (6-C-12(6-C-10,A+P+X)3-LI-5,SEQ/PAR,SIG) O163500500003 PART-DET (A,P) O163500500004 EN-SEC (E-LVL,4-BE-6) O163500500005 (E-EXC,3-LI-5) O163500500006 COMMENT *By authors*.Cross section for the production of O163500500007 Be-6=Li-5(g.s-900 keV)+p in the M=3(app) channel. O163500500008 ENDBIB 6 0 O163500500009 COMMON 1 3 O163500500010 E-LVL O163500500011 MEV O163500500012 0. O163500500013 ENDCOMMON 3 0 O163500500014 DATA 4 1 O163500500015 E-EXC-MIN E-EXC-MAX DATA ERR-T O163500500016 MEV MEV MB MB O163500500017 0.0 0.9 10.5 2.2 O163500500018 ENDDATA 3 0 O163500500019 ENDSUBENT 18 0 O163500599999 SUBENT O1635006 20080825 O036O163500600001 BIB 4 6 O163500600002 REACTION (6-C-12(6-C-10,2P+X)4-BE-8,SEQ/PAR,SIG) O163500600003 EN-SEC (E-EXC,6-C-10) O163500600004 (E-LVL,4-BE-8) O163500600005 PART-DET (A,P) O163500600006 COMMENT *By authors*. Cross section for the production of O163500600007 C-10=B-9+p in the M=4(aapp) channel. O163500600008 ENDBIB 6 0 O163500600009 NOCOMMON 0 0 O163500600010 DATA 5 1 O163500600011 E-EXC-MIN E-EXC-MAX E-LVL DATA ERR-T O163500600012 MEV MEV MEV MB MB O163500600013 4.0 7.0 0. 9.2 1.9 O163500600014 ENDDATA 3 0 O163500600015 ENDSUBENT 14 0 O163500699999 SUBENT O1635007 20080825 O036O163500700001 BIB 4 6 O163500700002 REACTION (6-C-12(6-C-10,A+X)4-BE-6,PAR,SIG) O163500700003 EN-SEC (E-EXC,6-C-10) O163500700004 (E-LVL,4-BE-6) O163500700005 PART-DET (A,P) O163500700006 COMMENT *By authors*.Cross section for the production of O163500700007 C-10=Be-6+a in the M=4(aapp) channel. O163500700008 ENDBIB 6 0 O163500700009 COMMON 1 3 O163500700010 E-LVL O163500700011 MEV O163500700012 0. O163500700013 ENDCOMMON 3 0 O163500700014 DATA 4 1 O163500700015 E-EXC-MIN E-EXC-MAX DATA DATA-ERR O163500700016 MEV MEV MB MB O163500700017 5.1 12.0 3.3 0.7 O163500700018 ENDDATA 3 0 O163500700019 ENDSUBENT 18 0 O163500799999 SUBENT O1635008 20080825 O036O163500800001 BIB 5 9 O163500800002 REACTION (6-C-12(6-C-10,X)6-C-10,PAR,SIG) O163500800003 EN-SEC (E-LVL,6-C-10) O163500800004 PART-DET (A,P) O163500800005 FLAG (1.).Cross section for the production of C-10=B-9+p O163500800006 in the M=4(aapp) channel. O163500800007 (2.).Cross section for the production of C-10=Be-6+a O163500800008 in the M=4(aapp) channel. O163500800009 ERR-ANALYS (E-LVL-ERR).The uncertainty in excitation energy is O163500800010 reported by authors in table 2. O163500800011 ENDBIB 9 0 O163500800012 NOCOMMON 0 0 O163500800013 DATA 5 3 O163500800014 E-LVL E-LVL-ERR DATA DATA-ERR FLAG O163500800015 MEV MEV MB MB NO-DIM O163500800016 4.20 0.01 2.9 0.6 1. O163500800017 5.31 0.03 0.45 0.22 1. O163500800018 6.74 0.04 0.46 0.19 2. O163500800019 ENDDATA 5 0 O163500800020 ENDSUBENT 19 0 O163500899999 ENDENTRY 8 0 O163599999999