ENTRY A0858 20100630 A069A085800000001 SUBENT A0858001 20100630 A069A085800100001 BIB 11 55 A085800100002 TITLE Properties of very n-rich He isotopes. A085800100003 AUTHOR (A.S.Fomichev, L.V.Grigorenko, M.S.Golovkov, A085800100004 G.M.Ter-Akopian, Yu.Ts.Oganessian, V.A.Gorshkov, A085800100005 S.A.Krupko, A.M.Rodin, S.I.Sidorchuk, R.S.Slepnev, A085800100006 S.V.Stepantsov, R.Wolski, V.Chudoba, A085800100007 A.A.Korsheninnikov, E.A.Kuzmin, E.Yu.Nikolskii, A085800100008 B.G.Novatskii, D.N.Stepanov, P.Roussel-Chomaz, A085800100009 W.Mittig, D.Pang, A.Ninane, F.Hanappe, L.Stuttge, A085800100010 A.A.Yukhimchuk, V.V.Perevozchikov, Yu.I.Vinogradov, A085800100011 S.K.Grishechkin, S.V.Zlatoustovskiy) A085800100012 INSTITUTE (4ZZZDUB) A085800100013 (4RUSKUR) A085800100014 (3POLIFJ) Henryk Niewodniczanski Institute of Nuclear A085800100015 Physics PAS, Cracow, Poland A085800100016 (2FR GAN) A085800100017 (2BLGLVN) A085800100018 (2BLGBRU) A085800100019 (2FR STR) A085800100020 (4RUSEPA) A085800100021 (1USAMSU) A085800100022 REFERENCE (J,EPJ/A,42,465,2009) A085800100023 METHOD (EDE) A085800100024 (TOF) A085800100025 FACILITY (CYCLO,4ZZZDUB)the U-400M cyclotron of FLNR A085800100026 (PRJFS,4ZZZDUB) The secondary beams of He-6 and He-8 A085800100027 nuclei produced by the double achromatic magnetic A085800100028 separator ACCULINNA A085800100029 INC-SOURCE Experiments were performed using a 34 MeV/A primary A085800100030 beam of B-11 delivered by the JINR U-400M cyclotron. A085800100031 DETECTOR (MAGSP) The spectrometer ACCULINNA was used to separateA085800100032 He-8 from all other reaction products. A085800100033 (TELES,SI,SI) a telescope consisting of one 300 mum andA085800100034 1mm thick annular Si detectors. The active areas of A085800100035 these detectors had the outer and inner diameters of A085800100036 82 mm and 32 mm, respectively. The first, 300 mum A085800100037 detector, was segmented in 16 rings on one side and A085800100038 16 sectors on the other side and the second, A085800100039 1 mm detector, was not segmented. A veto detector was A085800100040 installed upstream of the proton telescope to alert to A085800100041 the signals generated by the beam halo- for protons. A085800100042 A zero-angle Si detector telescope for the 6He and 8He A085800100043 included six squared (60*60mm) 1mm thick detectors. TheA085800100044 first two detectors of the telescope were segmented in A085800100045 16 strips each in the vertical and horizontal A085800100046 directions. All other detectors in the telescope were A085800100047 segmented in 4 strips in the He-8 run and in 16 strips A085800100048 in the He-6 run. A085800100049 An array of 48 detector modules of the neutron time ofA085800100050 flight spectrometer DEMON was installed in the forward A085800100051 direction at a distance of 3.1 m from the target. In A085800100052 events where triple p-6He-n coincidences were detected A085800100053 the complete reaction kinematics was reconstructed. A085800100054 SAMPLE The tritium target was used. A085800100055 STATUS The letter was send A.S.Fomichev 11.05.2010-no reply A085800100056 HISTORY (20100630C) SB A085800100057 ENDBIB 55 0 A085800100058 NOCOMMON 0 0 A085800100059 ENDSUBENT 58 0 A085800199999 SUBENT A0858002 20100630 A069A085800200001 BIB 4 9 A085800200002 REACTION ((1-H-3(2-HE-6,P)2-HE-8,PAR,DA)= A085800200003 (2-HE-6(T,P)2-HE-8,PAR,DA,RSD)) A085800200004 EN-SEC (E-LVL,2-HE-8) A085800200005 LEVEL-PROP (2-HE-8,E-LVL=0.0,SPIN=0.,PARITY=+1.) A085800200006 (2-HE-8,E-LVL=3.6,SPIN=2.,PARITY=+1.) A085800200007 (2-HE-8,E-LVL=3.9,SPIN=2.,PARITY=+1.) A085800200008 (2-HE-8,E-LVL=5.3,SPIN=1.,PARITY=+1.) A085800200009 (2-HE-8,E-LVL=5.9,SPIN=1.,PARITY=+1.) A085800200010 STATUS (TABLE) Data in text A085800200011 ENDBIB 9 0 A085800200012 COMMON 3 3 A085800200013 EN ANG-CM-MIN ANG-CM-MAX A085800200014 MEV/A ADEG ADEG A085800200015 25.0 4.0 10.0 A085800200016 ENDCOMMON 3 0 A085800200017 DATA 5 3 A085800200018 E-LVL E-LVL DATA-CM DATA-MN-CM DATA-MX-CM A085800200019 MEV MEV MU-B/SR MU-B/SR MU-B/SR A085800200020 0.0 200. A085800200021 3.6 3.9 100. 250. A085800200022 5.3 5.9 90. 125. A085800200023 ENDDATA 5 0 A085800200024 ENDSUBENT 23 0 A085800299999 SUBENT A0858003 20100630 A069A085800300001 BIB 5 11 A085800300002 REACTION ((1-H-3(2-HE-8,P)2-HE-10,PAR,DA)= A085800300003 (2-HE-8(T,P)2-HE-10,PAR,DA,RSD)) A085800300004 EN-SEC (E-LVL,2-HE-10) A085800300005 LEVEL-PROP (2-HE-10,E-LVL=0.0,SPIN=0.,PARITY=+1.) A085800300006 COMMENT *By authors*.The lowest-energy group of events in the A085800300007 He-10 spectrum was observed at approx. 3 MeV with a A085800300008 cross-section of approx. 140 mu-b/sr. This result is A085800300009 consistent with the previously reported observation of A085800300010 He-10 providing a new g.s. position for He-10 at about A085800300011 3 MeV. A085800300012 STATUS (TABLE) Data in text A085800300013 ENDBIB 11 0 A085800300014 COMMON 3 3 A085800300015 EN ANG-CM-MIN ANG-CM-MAX A085800300016 MEV/A ADEG ADEG A085800300017 27.4 3.5 9.5 A085800300018 ENDCOMMON 3 0 A085800300019 DATA 2 1 A085800300020 E-LVL-MIN DATA-CM A085800300021 MEV MU-B/SR A085800300022 3.0 140. A085800300023 ENDDATA 3 0 A085800300024 ENDSUBENT 23 0 A085800399999 ENDENTRY 3 0 A085899999999