ENTRY E2048 20080131 E050E204800000001 SUBENT E2048001 20080131 E050E204800100001 BIB 12 41 E204800100002 TITLE The first 2+ state of 14 Be E204800100003 AUTHOR (T.Sugimoto, T.Nakamura, Y.Kondo, N.Aoi, H.Baba, E204800100004 D.Bazin, N.Fukuda, T.Gomi, H.Hasegawa, N.Imai, E204800100005 M.Ishihara, T.Kobayashi, T.Kubo, M.Miura, E204800100006 T.Motobayashi, H.Otsu, A.Saito, H.Sakurai, S.Shimoura, E204800100007 A.M.Vinodkumar, K.Watanabe, Y.X.Watanabe, T.Yakushiji, E204800100008 Y.Yanagisawa, K.Yoneda) E204800100009 INSTITUTE (2JPNTIT) Department of Physics E204800100010 (2JPNIPC) RIKEN Nishina Center for Accelerator-Based E204800100011 Science E204800100012 (1USAMSU) National Superconducting Cyclotron E204800100013 Laboratory (NSCL) E204800100014 (2JPNYOK) Department of Physics E204800100015 (2JPNKEK) E204800100016 (2JPNTOH) Department of Physics E204800100017 (2JPNTOK) Center for Nuclear Study (CNS) E204800100018 REFERENCE (J,PL/B,654,(5-6),160,200710) E204800100019 PART-DET (N,DG,4-BE-12) E204800100020 INC-SOURCE Beam intensity is 5e3 PPS. E204800100021 SAMPLE - Chemical-form of target is element. E204800100022 - Physical-form of target is solid. E204800100023 - Target-thickness is 377 mg/cm**2. E204800100024 METHOD (TOF,EDE) To identify 12Be E204800100025 (TOF) To obtain momenta of neutrons E204800100026 FACILITY (CYCLO,2JPNIPC) To accelerate primary 18O ions to 100 E204800100027 MeV/nucleon E204800100028 (PRJFS,2JPNIPC) To separate 14Be secondary beam from E204800100029 Be production target E204800100030 DETECTOR (MAGSP,DRFTC) To detect 12Be fragment E204800100031 (SCIN) To detect neutron E204800100032 (NAICR) To detect de-excitation gamma rays from 14Be E204800100033 projectile and 12Be fragment (DALI) E204800100034 COMMENT Eexc(14Be) = 1.54+-0.13 MeV is deduced from peak of E204800100035 relative energy spectrum E(rel) = 0.28+-0.01 MeV E204800100036 (obtained in this work) and 2 neutron separation E204800100037 energy S(2n) = 1.26+-0.13 MeV. Error in excitation E204800100038 energy (+-0.13 MeV) is dominated by uncertainty of E204800100039 S(2n) will be reduced significantly as soon as a E204800100040 precise atomic mass of 14Be is available. E204800100041 HISTORY (20071029C) On + Yt E204800100042 (20071029R) On. Received by e-mail from T.Nakamura E204800100043 ENDBIB 41 0 E204800100044 NOCOMMON 0 0 E204800100045 ENDSUBENT 44 0 E204800199999 SUBENT E2048002 20080131 E050E204800200001 BIB 5 10 E204800200002 REACTION (6-C-12(4-BE-14,INL)6-C-12,,DE) E204800200003 EN-SEC (E-EXC,4-BE-14) Converted from relative energy by E204800200004 S(2n) of 14Be (1.26+-0.13 MeV) E204800200005 MISC-COL (MISC) Relative energy of 12Be+n+n (More precise than E204800200006 excitation energy values) E204800200007 ERR-ANALYS (ERR-S) Statistical uncertainty E204800200008 (E-LVL-ERR) Uncertainty in two neutrons separation E204800200009 energy S(2n) E204800200010 STATUS (TABLE) Data (Fig.1(a), p162 of reference) received by E204800200011 e-mail from T.Nakamura (2007.10.29) E204800200012 ENDBIB 10 0 E204800200013 COMMON 2 3 E204800200014 EN E-LVL-ERR E204800200015 MEV/A MEV E204800200016 68.1 0.13 E204800200017 ENDCOMMON 3 0 E204800200018 DATA 4 60 E204800200019 E-EXC MISC DATA ERR-S E204800200020 MEV MEV MB/MEV MB/MEV E204800200021 1.285 0.025 1.091460 0.630205 E204800200022 1.335 0.075 5.808080 2.329300 E204800200023 1.385 0.125 12.307100 5.096850 E204800200024 1.435 0.175 47.476900 7.010280 E204800200025 1.485 0.225 96.664600 8.648510 E204800200026 1.535 0.275 119.252000 8.657910 E204800200027 1.585 0.325 99.166200 9.059510 E204800200028 1.635 0.375 61.764300 7.549100 E204800200029 1.685 0.425 52.138100 5.853290 E204800200030 1.735 0.475 39.777800 5.965070 E204800200031 1.785 0.525 37.653100 4.836080 E204800200032 1.835 0.575 29.128500 4.365990 E204800200033 1.885 0.625 21.103300 4.154570 E204800200034 1.935 0.675 25.237400 5.479700 E204800200035 1.985 0.725 20.662500 4.184630 E204800200036 2.035 0.775 15.946100 4.203310 E204800200037 2.085 0.825 5.046940 7.514060 E204800200038 2.135 0.875 23.305400 6.058540 E204800200039 2.185 0.925 20.509700 4.912670 E204800200040 2.235 0.975 8.038730 7.755600 E204800200041 2.285 1.025 22.407500 6.519310 E204800200042 2.335 1.075 16.908100 5.614670 E204800200043 2.385 1.125 17.549100 4.848440 E204800200044 2.435 1.175 13.901500 4.821230 E204800200045 2.485 1.225 13.828000 4.700390 E204800200046 2.535 1.275 19.310600 5.772490 E204800200047 2.585 1.325 14.792100 5.094130 E204800200048 2.635 1.375 15.503500 5.269050 E204800200049 2.685 1.425 5.693710 5.927880 E204800200050 2.735 1.475 18.982100 4.586150 E204800200051 2.785 1.525 19.866400 4.230530 E204800200052 2.835 1.575 11.228800 4.621780 E204800200053 2.885 1.625 17.175700 7.682490 E204800200054 2.935 1.675 20.951000 4.914570 E204800200055 2.985 1.725 24.023300 9.110130 E204800200056 3.035 1.775 15.085500 8.872990 E204800200057 3.085 1.825 17.113600 5.960070 E204800200058 3.135 1.875 9.909420 6.764770 E204800200059 3.185 1.925 20.554700 6.169230 E204800200060 3.235 1.975 22.082200 6.351360 E204800200061 3.285 2.025 15.360300 6.752210 E204800200062 3.335 2.075 29.209300 7.092770 E204800200063 3.385 2.125 14.352200 6.784270 E204800200064 3.435 2.175 -1.387580 9.886540 E204800200065 3.485 2.225 20.194600 4.146550 E204800200066 3.535 2.275 18.425400 12.197200 E204800200067 3.585 2.325 14.610000 9.847250 E204800200068 3.635 2.375 23.498600 6.592670 E204800200069 3.685 2.425 30.204600 7.974350 E204800200070 3.735 2.475 22.176800 5.302870 E204800200071 3.785 2.525 23.109200 8.887120 E204800200072 3.835 2.575 1.055140 11.243200 E204800200073 3.885 2.625 17.222700 6.769530 E204800200074 3.935 2.675 20.600400 5.158300 E204800200075 3.985 2.725 16.475900 9.039740 E204800200076 4.035 2.775 28.581400 9.057170 E204800200077 4.085 2.825 14.260900 13.188500 E204800200078 4.135 2.875 15.166700 8.957320 E204800200079 4.185 2.925 9.552450 5.774470 E204800200080 4.235 2.975 19.233500 5.554570 E204800200081 ENDDATA 62 0 E204800200082 ENDSUBENT 81 0 E204800299999 SUBENT E2048003 20080131 E050E204800300001 BIB 5 11 E204800300002 REACTION (6-C-12(4-BE-14,INL)6-C-12,PAR,DA) E204800300003 EN-SEC ANG-CM is polar angle between beam and 12Be in center E204800300004 of mass system E204800300005 (E-LVL,6-C-12) E204800300006 ERR-ANALYS (ERR-S) Uncertainty in fitting procedure E204800300007 (E-LVL-ERR) Uncertainty in two neutrons separation E204800300008 energy S(2n) E204800300009 ADD-RES (COMP) DWBA (Distorted wave Born approximation) (Code E204800300010 ECIS ) E204800300011 STATUS (TABLE) Data (Fig.1(b), p162 of reference) received by E204800300012 e-mail from T.Nakamura (2007.10.29) E204800300013 ENDBIB 11 0 E204800300014 COMMON 3 3 E204800300015 EN E-LVL E-LVL-ERR E204800300016 MEV/A MEV MEV E204800300017 68.1 1.54 0.13 E204800300018 ENDCOMMON 3 0 E204800300019 DATA 3 18 E204800300020 ANG-CM DATA-CM ERR-S E204800300021 ADEG MB/SR MB/SR E204800300022 1.250 861. 215. E204800300023 1.750 1198. 158. E204800300024 2.250 1130. 144. E204800300025 2.750 722. 102. E204800300026 3.250 597. 82.6 E204800300027 3.750 335. 73.3 E204800300028 4.250 370. 56.3 E204800300029 4.750 245. 42.9 E204800300030 5.250 232. 48.8 E204800300031 5.750 186. 31.3 E204800300032 6.250 163. 34.5 E204800300033 6.750 111. 32.4 E204800300034 7.250 131. 26.8 E204800300035 7.750 77.8 20.6 E204800300036 8.250 55.7 27.2 E204800300037 8.750 35.2 19.1 E204800300038 9.250 14.7 15.7 E204800300039 9.750 46.9 20.6 E204800300040 ENDDATA 20 0 E204800300041 ENDSUBENT 40 0 E204800399999 SUBENT E2048004 20080131 E050E204800400001 BIB 4 7 E204800400002 REACTION (6-C-12(4-BE-14,INL)6-C-12,PAR,SIG) E204800400003 EN-SEC (E-LVL,6-C-12) E204800400004 ERR-ANALYS (ERR-S) Statistical uncertainty E204800400005 (ERR-SYS) Total systematic uncertainty E204800400006 (E-LVL-ERR) Uncertainty in two neutrons separation E204800400007 energy S(2n) E204800400008 STATUS (TABLE) Taken from text, p161 in reference E204800400009 ENDBIB 7 0 E204800400010 COMMON 2 3 E204800400011 E-LVL E-LVL-ERR E204800400012 MEV MEV E204800400013 1.54 0.13 E204800400014 ENDCOMMON 3 0 E204800400015 DATA 4 1 E204800400016 EN DATA ERR-S ERR-SYS E204800400017 MEV/A MB MB MB E204800400018 68.1 22.6 1.1 3.1 E204800400019 ENDDATA 3 0 E204800400020 ENDSUBENT 19 0 E204800499999 ENDENTRY 4 0 E204899999999