ENTRY 23797 20210407 23012379700000001 SUBENT 23797001 20210407 23012379700100001 BIB 12 33 2379700100002 TITLE Parity nonconservation and Brosa modes in nuclear 2379700100003 fission 2379700100004 AUTHOR (U.Graf, F.Goennenwein, P.Geltenbort, K.Schreckenbach) 2379700100005 REFERENCE (J,ZP/A,351,281,1995) 2379700100006 INSTITUTE (2GERTUE) U.Graf, F.Goennenwein 2379700100007 (2FR ILL) P.Geltenbort 2379700100008 (2GERMUN) K.Schreckenbach 2379700100009 FACILITY (REAC,2FR ILL) ILL reactor. 2379700100010 .Super-mirror for polarized neutrons ( polarization 96%2379700100011 INC-SOURCE (REAC) H14 guide, end position. 2379700100012 INC-SPECT Flux 2.E+8 n/cm2 2379700100013 SAMPLE 233UF(4) layer of 15 ug/cm2 thickness, 12 mm diameter, 2379700100014 prepared by evaporation on a Au-coated polyimide foil 2379700100015 of 30 ug/cm2 thickness. 2379700100016 DETECTOR (IOCH) Double back-to-back ionization chamber with 2379700100017 Frisch grids to detect fission fragments in 2379700100018 coincidence. 2379700100019 Counting gas is isobutane of 99.995% purity at 200 mb 2379700100020 pressure, 2379700100021 gas flow at an exchange rate of 30 cm3/min. 2379700100022 METHOD (COINC) 2379700100023 ADD-RES . Asymmetry of FF was determine as (Np-Na)/Np+Na) to be2379700100024 (3.29+-0.31)*10**-4 , where 2379700100025 Np - fission counts for parallel incident neutron spin 2379700100026 and momentum, 2379700100027 Na - fission counts for aniparallel incident neutron 2379700100028 spin and momentum. 2379700100029 . Asymmetry for two modes: 2379700100030 standard I - (3.50+-0.96)*10**-4, 2379700100031 standard II - (3.17+-0.40)*10**-4. 2379700100032 . Mass distribution is given on fig.4b was not digitize2379700100033 - smooth curve, no uncertainties, low size of figure. 2379700100034 HISTORY (20210407C) M.M. 2379700100035 ENDBIB 33 0 2379700100036 NOCOMMON 0 0 2379700100037 ENDSUBENT 36 0 2379700199999 SUBENT 23797002 20210407 23012379700200001 BIB 6 16 2379700200002 REACTION (92-U-233(N,F),PRE,AP,HF,MSC) 2379700200003 Average heavy fragment mass for two modes 2379700200004 FLAG (1.) Standard I 2379700200005 (2.) Standard II 2379700200006 ANALYSIS Mass distribution were fitted by two Gaussians - 2379700200007 standard I and II modes - using Brosa+ model, see 2379700200008 REL-REF. 2379700200009 REL-REF (N,,U.Brosa+,J,PRN,197,167,1990) 2379700200010 Ref. for model used in analysis 2379700200011 (N,,H.-H.Knitter+,J,ZN/A,42,786,1987) 2379700200012 Exp.data for U-235, used for comparison. 2379700200013 MISC-COL (MISC1) RMS of the mass variance 2379700200014 (MISC2) Relative contribution of the mode in the total 2379700200015 yield. 2379700200016 STATUS (TABLE) Table 1 of Zeitschrift fuer Physik A, 2379700200017 Hadrons and Nuclei,v.351,p.281,1995. 2379700200018 ENDBIB 16 0 2379700200019 COMMON 1 3 2379700200020 EN-DUMMY 2379700200021 EV 2379700200022 0.0253 2379700200023 ENDCOMMON 3 0 2379700200024 DATA 4 2 2379700200025 DATA MISC1 MISC2 FLAG 2379700200026 NO-DIM NO-DIM PER-CENT NO-DIM 2379700200027 132.0 2.55 13.5 1. 2379700200028 139.7 5.1 86.5 2. 2379700200029 ENDDATA 4 0 2379700200030 ENDSUBENT 29 0 2379700299999 SUBENT 23797003 20210407 23012379700300001 BIB 6 16 2379700300002 REACTION (92-U-233(N,F),PRE,AKE,LF+HF,MSC) 2379700300003 Average total kinetic energy TKE for two modes 2379700300004 FLAG (1.) Standard I 2379700300005 (2.) Standard II 2379700300006 ANALYSIS Mass distribution were fitted by two Gaussians - 2379700300007 standard I and II modes - using Brosa+ model, see 2379700300008 REL-REF. 2379700300009 REL-REF (N,,U.Brosa+,J,PRN,197,167,1990) 2379700300010 Ref. for model used in analysis 2379700300011 (N,,H.-H.Knitter+,J,ZN/A,42,786,1987) 2379700300012 Exp.data for U-235, used for comparison. 2379700300013 MISC-COL (MISC1) RMS of total kinetic energy variance 2379700300014 (MISC2) Relative contribution of the mode in the total 2379700300015 yield. 2379700300016 STATUS (TABLE) Table 1 of Zeitschrift fuer Physik A, 2379700300017 Hadrons and Nuclei,v.351,p.281,1995. 2379700300018 ENDBIB 16 0 2379700300019 COMMON 1 3 2379700300020 EN-DUMMY 2379700300021 EV 2379700300022 0.0253 2379700300023 ENDCOMMON 3 0 2379700300024 DATA 4 2 2379700300025 DATA MISC1 MISC2 FLAG 2379700300026 MEV MEV PER-CENT NO-DIM 2379700300027 181.2 9.3 13.5 1. 2379700300028 168.4 9.3 86.5 2. 2379700300029 ENDDATA 4 0 2379700300030 ENDSUBENT 29 0 2379700399999 ENDENTRY 3 0 2379799999999