ENTRY F1484 20231109 F095F1484 0 1 SUBENT F1484001 20231109 F095F1484 1 1 BIB 14 49 F1484 1 2 TITLE First experiment at the Super Heavy Element Factory: F1484 1 3 High cross section of 288Mc in the 243Am+48Ca F1484 1 4 reaction and identification of the new isotope 264Lr F1484 1 5 AUTHOR (Yu.Ts.Oganessian,V.K.Utyonkov,N.D.Kovrizhnykh, F1484 1 6 F.Sh.Abdullin,S.N.Dmitriev,D.Ibadullayev,M.G.Itkis, F1484 1 7 D.A.Kuznetsov,O.V.Petrushkin,A.V.Podshibiakin, F1484 1 8 A.N.Polyakov,A.G.Popeko,R.N.Sagaidak,L.Schlattauer, F1484 1 9 I.V.Shirokovski,V.D.Shubin,M.V.Shumeiko,D.I.Solovyev, F1484 1 10 Yu.S.Tsyganov,A.A.Voinov,V.G.Subbotin,A.Yu.Bodrov, F1484 1 11 A.V.Sabel'nikov,A.V.Khalkin,V.B.Zlokazov, F1484 1 12 K.P.Rykaczewski,T.T.King,J.B.Roberto,N.T.Brewer, F1484 1 13 R.K.Grzywacz,Z.G.Gan,Z.Y.Zhang,M.H.Huang,H.B.Yang) F1484 1 14 REFERENCE (J,PR/C,106,L031301,2022) F1484 1 15 #doi:10.1103/PhysRevC.106.L031301 F1484 1 16 INSTITUTE (4ZZZDUB,4KASATN,1USAORL,1USATEN,3CPRIMP) F1484 1 17 (3CZRCZR) Palacky University Olomouc, Czech Republic F1484 1 18 FACILITY (CYCLO,4ZZZDUB) DC-280 cyclotron of the Superheavy F1484 1 19 Element Factory F1484 1 20 METHOD (TOF,ASPEC) F1484 1 21 SAMPLE (95-AM-243,ENR=0.995) The targets consisting of the F1484 1 22 enriched isotope 243Am were produced by F1484 1 23 layer-by-layer electrodeposition. Six target sectors F1484 1 24 were mounted on a disk with a diameter of 15 cm and F1484 1 25 rotated at 1500 rpm. F1484 1 26 INC-SOURCE The beam intensity was gradually increased to F1484 1 27 1.2-1.3 p mu-A. F1484 1 28 DETECTOR (MAGSP) The reaction products were analyzed by means F1484 1 29 of Dubna Gas Filled Recoil Separator (DGFRS-2) . F1484 1 30 (SISD) The focal detector of 48 mm in vertical and F1484 1 31 220 mm in horizontal directions consisted of two F1484 1 32 double-sided strip detectors (DSSD) covering 48x128 mm2F1484 1 33 with 1 mm wide strips in such a way that the front F1484 1 34 detector shielded part of the rear detector. Each two F1484 1 35 of the 48 front horizontal strips of both detectors F1484 1 36 were connected. The back strips were paired together F1484 1 37 to form 110 strips of 2 mm width. The focal detector F1484 1 38 was surrounded by eight 60x120 mm2 side detectors, eachF1484 1 39 with 8 strips, forming a box with a depth of 120 mm. F1484 1 40 (MWPC) Two multiwire proportional chambers were used F1484 1 41 to register the nuclei passing through the separator. F1484 1 42 ERR-ANALYS The beam energy was measured with a systematic F1484 1 43 uncertainty of 1 MeV. F1484 1 44 (DATA-ERR) Total uncertainty is given. F1484 1 45 ADD-RES (DECAY) Fifty-five new decay chains of 288Mc and six F1484 1 46 chains assigned to 289Mc were detected. A new F1484 1 47 spontaneously fissioning isotope 264Lr was identified. F1484 1 48 MISC-COL (MISC) Excitation energy of the compound nucleus. F1484 1 49 STATUS (APRVD) Entry was approved by Dr. V.K.Utyonkov F1484 1 50 HISTORY (20231109C) F1484 1 51 ENDBIB 49 0 F1484 1 52 NOCOMMON 0 0 F1484 1 53 ENDSUBENT 52 0 F1484 199999 SUBENT F1484002 20231109 F095F1484 2 1 BIB 4 9 F1484 2 2 REACTION (95-AM-243(20-CA-48,3N)115-MC-288,,SIG) F1484 2 3 DECAY-DATA (115-MC-288,0.195SEC,A) F1484 2 4 Half-life error: (+19/-15) msec. Half-life value was F1484 2 5 taken from Supplemental Material at F1484 2 6 https://link.aps.org/supplemental/10.1103/ F1484 2 7 PhysRevC.106.L031301 F1484 2 8 FLAG (1.) Target thickness was 0.36 mg/cm2 F1484 2 9 (2.) Target thickness was 0.38 mg/cm2 F1484 2 10 STATUS (TABLE,,Yu.Ts.Oganessian+,J,PR/C,106,L031301,2022)Tbl.1F1484 2 11 ENDBIB 9 0 F1484 2 12 NOCOMMON 0 0 F1484 2 13 DATA 7 3 F1484 2 14 EN DATA +DATA-ERR -DATA-ERR MISC-MIN MISC-MAX F1484 2 15 FLAG F1484 2 16 MEV PB PB PB SEE TEXT SEE TEXT F1484 2 17 NO-DIM F1484 2 18 243.9 9.8 2.6 2.1 35.5 37.8F1484 2 19 1. F1484 2 20 240.9 17.1 6.3 4.7 33.1 35.2F1484 2 21 2. F1484 2 22 239.1 9.9 5.1 3.4 31.5 33.6F1484 2 23 2. F1484 2 24 ENDDATA 10 0 F1484 2 25 ENDSUBENT 24 0 F1484 299999 SUBENT F1484003 20231109 F095F1484 3 1 BIB 4 9 F1484 3 2 REACTION (95-AM-243(20-CA-48,2N)115-MC-289,,SIG) F1484 3 3 DECAY-DATA (115-MC-289,0.260SEC,A) F1484 3 4 Half-life error: (+55/-39) msec. Half-life value was F1484 3 5 taken from Supplemental Material at F1484 3 6 https://link.aps.org/supplemental/10.1103/ F1484 3 7 PhysRevC.106.L031301 F1484 3 8 FLAG (1.) Target thickness was 0.36 mg/cm2 F1484 3 9 (2.) Target thickness was 0.38 mg/cm2 F1484 3 10 STATUS (TABLE,,Yu.Ts.Oganessian+,J,PR/C,106,L031301,2022)Tbl.1F1484 3 11 ENDBIB 9 0 F1484 3 12 NOCOMMON 0 0 F1484 3 13 DATA 8 3 F1484 3 14 EN DATA DATA-MAX +DATA-ERR -DATA-ERR MISC-MIN F1484 3 15 MISC-MAX FLAG F1484 3 16 MEV PB PB PB PB SEE TEXT F1484 3 17 SEE TEXT NO-DIM F1484 3 18 243.9 1.6 1.2 0.7 35.5F1484 3 19 37.8 1. F1484 3 20 240.9 1.1 2.5 0.9 33.1F1484 3 21 35.2 2. F1484 3 22 239.1 2.1 31.5F1484 3 23 33.6 2. F1484 3 24 ENDDATA 10 0 F1484 3 25 ENDSUBENT 24 0 F1484 399999 ENDENTRY 3 0 F148499999999