ENTRY C1753 20091027 C094C175300000001 SUBENT C1753001 20091027 C094C175300100001 BIB 13 49 C175300100002 TITLE Breakdown of the Z=8 Shell Closure in Unbound 12-O C175300100003 and its Mirror Symmetry C175300100004 AUTHOR (D.Suzuki,H.Iwasaki,D.Beaumel,L.Nalpas,E.Pollacco, C175300100005 M.Assie,H.Baba,Y.Blumenfeld,N.De Sereville,A.Drouart, C175300100006 S.Franchoo,A.Gillibert,J.Guillot,F.Hammache,N.Keeley, C175300100007 V.Lapoux,F.Marechal,S.Michimasa,X.Mougeot,I.Mukha, C175300100008 H.Okamura,H.Otsu,A.P.Roussel-Chomaz,H.Sakurai, C175300100009 J.-A.Scarpaci,O.Sorlin,I.Stefan,M.Takechi) C175300100010 INSTITUTE (2JPNTOK,2FR PAR,2FR SAC,2JPNIPC,3POLIPJ,2SPNSEU, C175300100011 2JPNOSA,2FR GAN) C175300100012 REFERENCE (J,PRL,103,152503,2009) C175300100013 FACILITY (CYCLO,2FR GAN)The experiment was performed at the C175300100014 GANIL facility. C175300100015 SAMPLE 1-mm-thick solid hydrogen target C175300100016 DETECTOR (TELES,SISD,CSICR)The energies and angles of the C175300100017 recoiling tritons were measured by an array of four C175300100018 MUST2 telescopes located 30 cm downstream of the C175300100019 target. Each telescope, with an active area of 10x10 C175300100020 cm2, consisted of a 0.3 mm thick double-sided Si C175300100021 strip detector and a 4 cm thick 16-fold CsI calorimeterC175300100022 The dE detector was divided into 256 strips in both C175300100023 the x and y directions, providing position information.C175300100024 (MAGSP) The reaction products emitted at small angles C175300100025 were detected with a SPEG spectrometer C175300100026 METHOD (EDE)Particle identification of light particles was C175300100027 made by the dE-E method. The total kinetic energy C175300100028 was obtained as a sum of the energy information (E+dE).C175300100029 (COINC) A triple coincidence with the 16O beam, the C175300100030 recoiling tritons, and the beamlike ejectiles of eitherC175300100031 14-O (for the bound states of 14-O) or 13N (for the C175300100032 unbound states of 14O above the proton separation C175300100033 energy. The ejectiles were detected by SPEG or a C175300100034 Si dE-E telescope. C175300100035 CORRECTION Correction for energy loss in the target was made in C175300100036 determination of total kinetic energy. C175300100037 INC-SOURCE (KINDT)The secondary 14-O beam at 51 AMeV was C175300100038 produced by fragmentation of 16-O at 90 AMeV on a C175300100039 920 mg/cm2 thick C target located in the SISSI C175300100040 device.The Alpha fragment separator, equipped with a C175300100041 135 mg/cm2 thick Al degrader, was used to purify the C175300100042 fragments.The purity (intensity) of the O-14 beam C175300100043 was around 40% (6.0E+4 pps). C175300100044 ANALYSIS Missing mass method was used to study the structure C175300100045 of 12-O. C175300100046 ERR-ANALYS (ERR-S) Statistical uncertainty C175300100047 (ERR-SYS) Systematic uncertainty consisting mainly of C175300100048 (ERR-1) Uncertainty in calculated acceptance C175300100049 (ERR-2) Uncertainty in target thickness C175300100050 HISTORY (20091027C)Compiled by S.H. C175300100051 ENDBIB 49 0 C175300100052 COMMON 4 3 C175300100053 EN ERR-SYS ERR-1 ERR-2 C175300100054 MEV/A PER-CENT PER-CENT PER-CENT C175300100055 51.0 25.0 15.0 10.0 C175300100056 ENDCOMMON 3 0 C175300100057 ENDSUBENT 56 0 C175300199999 SUBENT C1753002 20091027 C094C175300200001 BIB 2 3 C175300200002 REACTION (1-H-1(8-O-16,T)8-O-14,PAR,DA) C175300200003 STATUS (TABLE) Data presented in fig.3a of the reference sent C175300200004 by author (D.S.) C175300200005 ENDBIB 3 0 C175300200006 COMMON 1 3 C175300200007 E-LVL C175300200008 MEV C175300200009 0.0 C175300200010 ENDCOMMON 3 0 C175300200011 DATA 3 14 C175300200012 ANG-CM DATA-CM ERR-S C175300200013 ADEG MB/SR MB/SR C175300200014 12.5 2.75E-01 0.46E-01 C175300200015 17.5 1.96E-01 0.30E-01 C175300200016 22.5 2.95E-01 0.30E-01 C175300200017 27.5 6.97E-01 0.37E-01 C175300200018 32.5 7.53E-01 0.33E-01 C175300200019 37.5 6.52E-01 0.29E-01 C175300200020 42.5 3.60E-01 0.20E-01 C175300200021 47.5 1.36E-01 0.19E-01 C175300200022 52.5 8.51E-02 0.12E-01 C175300200023 57.5 1.05E-01 0.13E-01 C175300200024 62.5 1.23E-01 0.13E-01 C175300200025 67.5 1.14E-01 0.12E-01 C175300200026 72.5 9.49E-02 0.11E-01 C175300200027 77.5 6.02E-02 0.11E-01 C175300200028 ENDDATA 16 0 C175300200029 ENDSUBENT 28 0 C175300299999 SUBENT C1753003 20091027 C094C175300300001 BIB 2 3 C175300300002 REACTION (1-H-1(8-O-16,T)8-O-14,PAR,DA) C175300300003 STATUS (TABLE) Data presented in fig.3a of the reference sent C175300300004 by author (D.S.) C175300300005 ENDBIB 3 0 C175300300006 COMMON 1 3 C175300300007 E-LVL C175300300008 MEV C175300300009 6.590 C175300300010 ENDCOMMON 3 0 C175300300011 DATA 3 7 C175300300012 ANG-CM DATA-CM ERR-S C175300300013 ADEG MB/SR MB/SR C175300300014 15.0 9.79E-02 0.20E-01 C175300300015 25.0 1.15E-01 0.21E-01 C175300300016 35.0 1.02E-01 0.11E-01 C175300300017 45.0 6.74E-02 0.77E-02 C175300300018 55.0 7.17E-02 0.71E-02 C175300300019 65.0 3.44E-02 0.56E-02 C175300300020 75.0 1.84E-02 0.45E-02 C175300300021 ENDDATA 9 0 C175300300022 ENDSUBENT 21 0 C175300399999 SUBENT C1753004 20091027 C094C175300400001 BIB 2 3 C175300400002 REACTION (1-H-1(8-O-16,T)8-O-14,PAR,DA) C175300400003 STATUS (TABLE) Data presented in fig.3 of the reference sent C175300400004 by author (D.S.) C175300400005 ENDBIB 3 0 C175300400006 COMMON 1 3 C175300400007 E-LVL C175300400008 MEV C175300400009 7.768 C175300400010 ENDCOMMON 3 0 C175300400011 DATA 3 7 C175300400012 ANG-CM DATA-CM ERR-S C175300400013 ADEG MB/SR MB/SR C175300400014 15.0 3.23E-02 0.13E-01 C175300400015 25.0 3.32E-02 0.96E-02 C175300400016 35.0 1.83E-02 0.62E-02 C175300400017 45.0 1.36E-02 0.48E-02 C175300400018 55.0 2.21E-02 0.52E-02 C175300400019 65.0 1.41E-02 0.46E-02 C175300400020 75.0 1.42E-02 0.67E-02 C175300400021 ENDDATA 9 0 C175300400022 ENDSUBENT 21 0 C175300499999 SUBENT C1753005 20091027 C094C175300500001 BIB 2 3 C175300500002 REACTION (1-H-1(8-O-14,T)8-O-12,PAR,DA) C175300500003 STATUS (TABLE) Data presented in fig.3b of the reference sent C175300500004 by author (D.S.) C175300500005 ENDBIB 3 0 C175300500006 COMMON 1 3 C175300500007 E-LVL C175300500008 MEV C175300500009 0.0 C175300500010 ENDCOMMON 3 0 C175300500011 DATA 3 6 C175300500012 ANG-CM DATA-CM ERR-S C175300500013 ADEG MB/SR MB/SR C175300500014 20.0 2.44E-02 0.55E-02 C175300500015 30.0 5.69E-02 0.75E-02 C175300500016 40.0 2.44E-02 0.38E-02 C175300500017 50.0 9.06E-03 0.28E-02 C175300500018 60.0 1.88E-02 0.73E-02 C175300500019 70.0 1.08E-02 0.25E-02 C175300500020 ENDDATA 8 0 C175300500021 ENDSUBENT 20 0 C175300599999 SUBENT C1753006 20091027 C094C175300600001 BIB 2 3 C175300600002 REACTION (1-H-1(8-O-14,T)8-O-12,PAR,DA) C175300600003 STATUS (TABLE) Data presented in fig.3b of the reference sent C175300600004 by author (D.S.) C175300600005 ENDBIB 3 0 C175300600006 COMMON 1 3 C175300600007 E-LVL C175300600008 MEV C175300600009 1.9 C175300600010 ENDCOMMON 3 0 C175300600011 DATA 3 6 C175300600012 ANG-CM DATA-CM ERR-S C175300600013 ADEG MB/SR MB/SR C175300600014 20.0 2.47E-02 0.64E-02 C175300600015 30.0 4.80E-02 0.88E-02 C175300600016 40.0 2.02E-02 0.35E-02 C175300600017 50.0 7.05E-03 0.31E-02 C175300600018 60.0 1.36E-02 0.72E-02 C175300600019 70.0 8.28E-03 0.30E-02 C175300600020 ENDDATA 8 0 C175300600021 ENDSUBENT 20 0 C175300699999 ENDENTRY 6 0 C175399999999