ENTRY 23797 20210407 230123797 0 1 SUBENT 23797001 20210407 230123797 1 1 BIB 12 33 23797 1 2 TITLE Parity nonconservation and Brosa modes in nuclear 23797 1 3 fission 23797 1 4 AUTHOR (U.Graf, F.Goennenwein, P.Geltenbort, K.Schreckenbach) 23797 1 5 REFERENCE (J,ZP/A,351,281,1995) 23797 1 6 INSTITUTE (2GERTUE) U.Graf, F.Goennenwein 23797 1 7 (2FR ILL) P.Geltenbort 23797 1 8 (2GERMUN) K.Schreckenbach 23797 1 9 FACILITY (REAC,2FR ILL) ILL reactor. 23797 1 10 .Super-mirror for polarized neutrons ( polarization 96%23797 1 11 INC-SOURCE (REAC) H14 guide, end position. 23797 1 12 INC-SPECT Flux 2.E+8 n/cm2 23797 1 13 SAMPLE 233UF(4) layer of 15 ug/cm2 thickness, 12 mm diameter, 23797 1 14 prepared by evaporation on a Au-coated polyimide foil 23797 1 15 of 30 ug/cm2 thickness. 23797 1 16 DETECTOR (IOCH) Double back-to-back ionization chamber with 23797 1 17 Frisch grids to detect fission fragments in 23797 1 18 coincidence. 23797 1 19 Counting gas is isobutane of 99.995% purity at 200 mb 23797 1 20 pressure, 23797 1 21 gas flow at an exchange rate of 30 cm3/min. 23797 1 22 METHOD (COINC) 23797 1 23 ADD-RES . Asymmetry of FF was determine as (Np-Na)/Np+Na) to be23797 1 24 (3.29+-0.31)*10**-4 , where 23797 1 25 Np - fission counts for parallel incident neutron spin 23797 1 26 and momentum, 23797 1 27 Na - fission counts for aniparallel incident neutron 23797 1 28 spin and momentum. 23797 1 29 . Asymmetry for two modes: 23797 1 30 standard I - (3.50+-0.96)*10**-4, 23797 1 31 standard II - (3.17+-0.40)*10**-4. 23797 1 32 . Mass distribution is given on fig.4b was not digitize23797 1 33 - smooth curve, no uncertainties, low size of figure. 23797 1 34 HISTORY (20210407C) M.M. 23797 1 35 ENDBIB 33 0 23797 1 36 NOCOMMON 0 0 23797 1 37 ENDSUBENT 36 0 23797 199999 SUBENT 23797002 20210407 230123797 2 1 BIB 6 16 23797 2 2 REACTION (92-U-233(N,F),PRE,AP,HF,MSC) 23797 2 3 Average heavy fragment mass for two modes 23797 2 4 FLAG (1.) Standard I 23797 2 5 (2.) Standard II 23797 2 6 ANALYSIS Mass distribution were fitted by two Gaussians - 23797 2 7 standard I and II modes - using Brosa+ model, see 23797 2 8 REL-REF. 23797 2 9 REL-REF (N,,U.Brosa+,J,PRN,197,167,1990) 23797 2 10 Ref. for model used in analysis 23797 2 11 (N,,H.-H.Knitter+,J,ZN/A,42,786,1987) 23797 2 12 Exp.data for U-235, used for comparison. 23797 2 13 MISC-COL (MISC1) RMS of the mass variance 23797 2 14 (MISC2) Relative contribution of the mode in the total 23797 2 15 yield. 23797 2 16 STATUS (TABLE) Table 1 of Zeitschrift fuer Physik A, 23797 2 17 Hadrons and Nuclei,v.351,p.281,1995. 23797 2 18 ENDBIB 16 0 23797 2 19 COMMON 1 3 23797 2 20 EN-DUMMY 23797 2 21 EV 23797 2 22 0.0253 23797 2 23 ENDCOMMON 3 0 23797 2 24 DATA 4 2 23797 2 25 DATA MISC1 MISC2 FLAG 23797 2 26 NO-DIM NO-DIM PER-CENT NO-DIM 23797 2 27 132.0 2.55 13.5 1. 23797 2 28 139.7 5.1 86.5 2. 23797 2 29 ENDDATA 4 0 23797 2 30 ENDSUBENT 29 0 23797 299999 SUBENT 23797003 20210407 230123797 3 1 BIB 6 16 23797 3 2 REACTION (92-U-233(N,F),PRE,AKE,LF+HF,MSC) 23797 3 3 Average total kinetic energy TKE for two modes 23797 3 4 FLAG (1.) Standard I 23797 3 5 (2.) Standard II 23797 3 6 ANALYSIS Mass distribution were fitted by two Gaussians - 23797 3 7 standard I and II modes - using Brosa+ model, see 23797 3 8 REL-REF. 23797 3 9 REL-REF (N,,U.Brosa+,J,PRN,197,167,1990) 23797 3 10 Ref. for model used in analysis 23797 3 11 (N,,H.-H.Knitter+,J,ZN/A,42,786,1987) 23797 3 12 Exp.data for U-235, used for comparison. 23797 3 13 MISC-COL (MISC1) RMS of total kinetic energy variance 23797 3 14 (MISC2) Relative contribution of the mode in the total 23797 3 15 yield. 23797 3 16 STATUS (TABLE) Table 1 of Zeitschrift fuer Physik A, 23797 3 17 Hadrons and Nuclei,v.351,p.281,1995. 23797 3 18 ENDBIB 16 0 23797 3 19 COMMON 1 3 23797 3 20 EN-DUMMY 23797 3 21 EV 23797 3 22 0.0253 23797 3 23 ENDCOMMON 3 0 23797 3 24 DATA 4 2 23797 3 25 DATA MISC1 MISC2 FLAG 23797 3 26 MEV MEV PER-CENT NO-DIM 23797 3 27 181.2 9.3 13.5 1. 23797 3 28 168.4 9.3 86.5 2. 23797 3 29 ENDDATA 4 0 23797 3 30 ENDSUBENT 29 0 23797 399999 ENDENTRY 3 0 2379799999999