ENTRY M0970 20180731 M097M0970 0 1 SUBENT M0970001 20180731 M097M0970 1 1 BIB 9 31 M0970 1 2 TITLE Evaluation of reliable cross sections of partial and M0970 1 3 total photoneutron reactions for 139La nucleus. M0970 1 4 AUTHOR (V.V.Varlamov,V.D.Kaidarova) M0970 1 5 REFERENCE (J,IZV,82,693,2018) M0970 1 6 #DOI:10.7868/S0367676518060030 M0970 1 7 (J,BAS,82,614,2018) M0970 1 8 #DOI:10.3103/S1062873818060321 M0970 1 9 English translation of IZV,82,693,2018. M0970 1 10 INSTITUTE (4RUSMOS) M0970 1 11 INC-SOURCE (QMPH,ARAD) M0970 1 12 ANALYSIS The joint analysis of data for total (g,xn) and M0970 1 13 partial (g,n), (g,2n) and (g,3n) reactions obtained M0970 1 14 in various experiments was carried out. The new M0970 1 15 approach to analysis of systematic disagreements M0970 1 16 between data was proposed on the base of new M0970 1 17 criteria of systematic uncertainties presence - M0970 1 18 specially proposed transitional multiplicity M0970 1 19 functions M0970 1 20 Fi-theor = SIG(g,in)/SIG(g,xn). M0970 1 21 Using these functions calculated in the frame of M0970 1 22 combined photonuclear reaction model new reliable M0970 1 23 and free from problems of neutron multiplicity M0970 1 24 sorting data for photoneutron partial reactions M0970 1 25 cross sections M0970 1 26 SIG-eval(g,in) = Fi-theor x SIG-exp(g,xn) M0970 1 27 were evaluated using experimental neutron yield M0970 1 28 reaction cross sections SIG-exp(g,xn). M0970 1 29 ERR-ANALYS (DATA-ERR) Root-mean-square errors. M0970 1 30 STATUS (APRVD) Approved by V.Varlamov. M0970 1 31 HISTORY (20180731C) Data were compiled at the Russia MSU SINP M0970 1 32 CDFE by V.Varlamov. M0970 1 33 ENDBIB 31 0 M0970 1 34 NOCOMMON 0 0 M0970 1 35 ENDSUBENT 34 0 M0970 199999 SUBENT M0970002 20180411 M097M0970 2 1 BIB 3 10 M0970 2 2 REACTION (57-LA-139(G,X)0-NN-1,UNW,SIG,,,EVAL) M0970 2 3 ANALYSIS The total neutron reaction cross section obtained as M0970 2 4 sum: SIG(g,sn) = SIG(g,n) + SIG(g,2n) + SIG(g,3n). M0970 2 5 STATUS (TABLE) Data plotted in Fig. 3a. M0970 2 6 (DEP,M0970003) M0970 2 7 Evaluated (g,n) reaction cross section. M0970 2 8 (DEP,M0970004) M0970 2 9 Evaluated (g,2n) reaction cross section. M0970 2 10 (DEP,M0970005) M0970 2 11 Evaluated (g,3n) reaction cross section. M0970 2 12 ENDBIB 10 0 M0970 2 13 NOCOMMON 0 0 M0970 2 14 DATA 3 42 M0970 2 15 EN DATA DATA-ERR M0970 2 16 MEV MB MB M0970 2 17 9.06 22.90 0.94 M0970 2 18 9.46 27.50 1.09 M0970 2 19 9.86 38.45 1.42 M0970 2 20 10.26 43.55 1.58 M0970 2 21 10.66 58.33 2.05 M0970 2 22 11.06 66.94 2.33 M0970 2 23 11.46 87.78 3.00 M0970 2 24 12.06 97.21 3.31 M0970 2 25 12.26 97.23 3.32 M0970 2 26 12.66 153.18 5.16 M0970 2 27 13.06 173.78 5.84 M0970 2 28 13.46 225.30 7.55 M0970 2 29 13.86 256.00 8.64 M0970 2 30 14.26 318.25 10.69 M0970 2 31 14.66 342.98 11.51 M0970 2 32 15.06 361.54 12.13 M0970 2 33 15.46 357.42 12.00 M0970 2 34 15.86 338.80 11.38 M0970 2 35 16.26 293.89 9.90 M0970 2 36 16.66 276.21 9.32 M0970 2 37 17.06 219.76 7.44 M0970 2 38 17.46 178.73 6.07 M0970 2 39 17.86 148.40 5.06 M0970 2 40 18.26 128.09 4.38 M0970 2 41 18.66 107.15 3.70 M0970 2 42 19.06 100.51 3.48 M0970 2 43 19.46 82.45 2.91 M0970 2 44 20.06 69.86 2.51 M0970 2 45 20.26 70.55 2.54 M0970 2 46 20.66 73.50 2.63 M0970 2 47 21.06 67.36 2.44 M0970 2 48 21.46 63.60 2.33 M0970 2 49 21.86 62.11 2.29 M0970 2 50 22.26 51.69 1.99 M0970 2 51 22.66 48.94 1.91 M0970 2 52 23.06 46.26 1.83 M0970 2 53 23.46 47.52 1.87 M0970 2 54 23.86 46.44 1.85 M0970 2 55 24.26 42.09 1.73 M0970 2 56 24.66 40.83 1.70 M0970 2 57 25.06 38.52 1.76 M0970 2 58 25.66 38.95 2.33 M0970 2 59 ENDDATA 44 0 M0970 2 60 ENDSUBENT 59 0 M0970 299999 SUBENT M0970003 20150813 M097M0970 3 1 BIB 4 19 M0970 3 2 REACTION ((57-LA-139(G,N)57-LA-138,,SIG,,,EVAL)+ M0970 3 3 (57-LA-139(G,N+P)56-BA-137,,SIG,,,EVAL)) M0970 3 4 ANALYSIS The contribution of partial reaction (g,n) cross M0970 3 5 section into the experimental total neutron yield M0970 3 6 reaction (g,xn) cross section obtained using M0970 3 7 quasimonoenergetic annihilation photons at Livermore M0970 3 8 (USA) was evaluated using specially theoretically M0970 3 9 calculated transitional multiplicity function - M0970 3 10 ratio M0970 3 11 F1-theor = SIG-theor(g,n)/SIG-theor(g,xn) M0970 3 12 by the way M0970 3 13 SIG-eval(g,n) = (F1-theor)x(SIG-exp(g,xn)). M0970 3 14 REL-REF (R,L0024005,H.Beil+,J,NP/A,172,426,1971) M0970 3 15 (E,,B.S.Ishkhanov+,J,YF,71,517,2008) M0970 3 16 Theoretical preequilibrium model of photonuclear M0970 3 17 reactions based on the Fermi gas densities. M0970 3 18 STATUS (TABLE) Data plotted in Fig. 3b. M0970 3 19 (DEP,L0024005) M0970 3 20 The neutron yield reaction (g,xn) cross section. M0970 3 21 ENDBIB 19 0 M0970 3 22 NOCOMMON 0 0 M0970 3 23 DATA 3 42 M0970 3 24 EN DATA DATA-ERR M0970 3 25 MEV MB MB M0970 3 26 9.06 22.90 2.82 M0970 3 27 9.46 27.50 3.27 M0970 3 28 9.86 38.45 4.26 M0970 3 29 10.26 43.55 4.74 M0970 3 30 10.66 58.33 6.15 M0970 3 31 11.06 66.94 6.98 M0970 3 32 11.46 87.78 9.01 M0970 3 33 12.06 97.21 9.94 M0970 3 34 12.26 97.23 9.95 M0970 3 35 12.66 153.18 15.47 M0970 3 36 13.06 173.78 17.52 M0970 3 37 13.46 225.30 22.65 M0970 3 38 13.86 256.00 25.91 M0970 3 39 14.26 318.25 32.08 M0970 3 40 14.66 342.98 34.54 M0970 3 41 15.06 361.54 36.40 M0970 3 42 15.46 357.42 35.99 M0970 3 43 15.86 338.80 34.15 M0970 3 44 16.26 293.89 29.71 M0970 3 45 16.66 270.06 27.33 M0970 3 46 17.06 187.34 19.02 M0970 3 47 17.46 127.80 13.01 M0970 3 48 17.86 84.22 8.61 M0970 3 49 18.26 59.25 6.08 M0970 3 50 18.66 41.73 4.32 M0970 3 51 19.06 34.30 3.56 M0970 3 52 19.46 25.66 2.71 M0970 3 53 20.06 20.52 2.21 M0970 3 54 20.26 20.67 2.23 M0970 3 55 20.66 21.99 2.36 M0970 3 56 21.06 19.97 2.19 M0970 3 57 21.46 20.28 2.23 M0970 3 58 21.86 19.15 2.13 M0970 3 59 22.26 15.87 1.83 M0970 3 60 22.66 15.42 1.76 M0970 3 61 23.06 12.54 1.49 M0970 3 62 23.46 12.22 1.44 M0970 3 63 23.86 11.29 1.35 M0970 3 64 24.26 9.14 1.16 M0970 3 65 24.66 9.14 1.14 M0970 3 66 25.06 8.32 1.14 M0970 3 67 25.66 7.90 1.85 M0970 3 68 ENDDATA 44 0 M0970 3 69 ENDSUBENT 68 0 M0970 399999 SUBENT M0970004 20050221 M097M0970 4 1 BIB 4 20 M0970 4 2 REACTION (57-LA-139(G,2N)57-LA-137,,SIG,,,EVAL) M0970 4 3 ANALYSIS The contribution of partial reaction (g,2n) cross M0970 4 4 section into the experimental total neutron yield M0970 4 5 reaction (g,xn) cross section obtained using M0970 4 6 quasimonoenergetic annihilation photons at Livermore M0970 4 7 (USA) was evaluated using specially theoretically M0970 4 8 calculated transitional multiplicity function - M0970 4 9 ratio M0970 4 10 F2-theor = SIG-theor(g,2n)/SIG-theor(g,xn) M0970 4 11 by the way M0970 4 12 SIG-eval(g,2n) = (F2-theor)x(SIG-exp(g,xn)). M0970 4 13 REL-REF (R,L0024005,H.Beil+,J,NP/A,172,426,1971) M0970 4 14 Experimental data for the total neutron yield M0970 4 15 reaction (g,xn) cross section. M0970 4 16 (E,,B.S.Ishkhanov+,J,YF,71,517,2008) M0970 4 17 Theoretical preequilibrium model of photonuclear M0970 4 18 reactions based on the Fermi gas densities. M0970 4 19 STATUS (TABLE) Data plotted in Fig. 3c. M0970 4 20 (DEP,L0024005) M0970 4 21 The neutron yield reaction (g,xn) cross section. M0970 4 22 ENDBIB 20 0 M0970 4 23 NOCOMMON 0 0 M0970 4 24 DATA 3 23 M0970 4 25 EN DATA DATA-ERR M0970 4 26 MEV MB MB M0970 4 27 16.66 6.15 0.62 M0970 4 28 17.06 32.43 3.29 M0970 4 29 17.46 50.93 5.20 M0970 4 30 17.86 64.19 6.56 M0970 4 31 18.26 68.83 7.07 M0970 4 32 18.66 65.42 6.78 M0970 4 33 19.06 66.21 6.88 M0970 4 34 19.46 56.79 6.00 M0970 4 35 20.06 49.34 5.32 M0970 4 36 20.26 49.89 5.38 M0970 4 37 20.66 51.51 5.53 M0970 4 38 21.06 47.39 5.14 M0970 4 39 21.46 43.32 4.77 M0970 4 40 21.86 42.96 4.74 M0970 4 41 22.26 35.82 4.13 M0970 4 42 22.66 33.51 3.97 M0970 4 43 23.06 33.73 4.01 M0970 4 44 23.46 35.30 4.17 M0970 4 45 23.86 35.15 4.19 M0970 4 46 24.26 32.95 4.03 M0970 4 47 24.66 31.68 3.96 M0970 4 48 25.06 30.20 4.14 M0970 4 49 25.66 30.10 4.17 M0970 4 50 ENDDATA 25 0 M0970 4 51 ENDSUBENT 50 0 M0970 499999 SUBENT M0970005 20050221 M097M0970 5 1 BIB 4 20 M0970 5 2 REACTION (57-LA-139(G,3N)57-LA-136,,SIG,,,EVAL) M0970 5 3 ANALYSIS The contribution of partial reaction (g,3n) cross M0970 5 4 section into the experimental total neutron yield M0970 5 5 reaction (g,xn) cross section obtained using M0970 5 6 quasimonoenergetic annihilation photons at Livermore M0970 5 7 (USA) was evaluated using specially theoretically M0970 5 8 calculated transitional multiplicity function - M0970 5 9 ratio M0970 5 10 F3-theor = SIG-theor(g,3n)/SIG-theor(g,xn) M0970 5 11 by the way M0970 5 12 SIG-eval(g,3n) = (F2-theor)x(SIG-exp(g,xn)). M0970 5 13 REL-REF (R,L0024005,H.Beil+,J,NP/A,172,426,1971) M0970 5 14 Experimental data for the total neutron yield M0970 5 15 reaction (g,xn) cross section. M0970 5 16 (E,,B.S.Ishkhanov+,J,YF,71,517,2008) M0970 5 17 Theoretical preequilibrium model of photonuclear M0970 5 18 reactions based on the Fermi gas densities. M0970 5 19 STATUS (TABLE) Data plotted in Fig. 3d. M0970 5 20 (DEP,L0024005) M0970 5 21 The neutron yield reaction (g,xn) cross section. M0970 5 22 ENDBIB 20 0 M0970 5 23 NOCOMMON 0 0 M0970 5 24 DATA 3 5 M0970 5 25 EN DATA DATA-ERR M0970 5 26 MEV MB MB M0970 5 27 26.13 0.00 0.41 M0970 5 28 26.67 0.63 0.38 M0970 5 29 27.08 1.88 0.47 M0970 5 30 27.72 3.44 0.50 M0970 5 31 28.30 5.00 0.69 M0970 5 32 ENDDATA 7 0 M0970 5 33 ENDSUBENT 32 0 M0970 599999 SUBENT M0970006 20180803 M097M0970 6 1 BIB 3 4 M0970 6 2 REACTION (57-LA-139(G,X)0-NN-1,UNW,INT,,,EVAL) M0970 6 3 ANALYSIS Integration of evaluated cross section. M0970 6 4 STATUS (DEP,M0970002) Evaluated cross section. M0970 6 5 (TABLE) Data presented in Table 2. M0970 6 6 ENDBIB 4 0 M0970 6 7 NOCOMMON 0 0 M0970 6 8 DATA 3 39 M0970 6 9 EN-MAX DATA DATA-ERR M0970 6 10 MEV MB*MEV MB*MEV M0970 6 11 16.27 1343.46 12.68 M0970 6 12 25.41 2152.72 14.59 M0970 6 13 27.00 2176.09 14.66 M0970 6 14 ENDDATA 5 0 M0970 6 15 ENDSUBENT 14 0 M0970 699999 SUBENT M0970007 20180803 M097M0970 7 1 BIB 3 5 M0970 7 2 REACTION ((57-LA-139(G,N)57-LA-138,,INT,,,EVAL)+ M0970 7 3 (57-LA-139(G,N+P)56-BA-137,,INT,,,EVAL)) M0970 7 4 ANALYSIS Integration of evaluated cross section. M0970 7 5 STATUS (DEP,M0970003) Evaluated cross section. M0970 7 6 (TABLE) Data presented in Table 2. M0970 7 7 ENDBIB 5 0 M0970 7 8 NOCOMMON 0 0 M0970 7 9 DATA 3 39 M0970 7 10 EN-MAX DATA DATA-ERR M0970 7 11 MEV MB*MEV MB*MEV M0970 7 12 16.27 1343.46 38.05 M0970 7 13 25.41 1763.54 41.04 M0970 7 14 27.00 1768.28 41.05 M0970 7 15 ENDDATA 5 0 M0970 7 16 ENDSUBENT 15 0 M0970 799999 SUBENT M0970008 20180803 M097M0970 8 1 BIB 3 4 M0970 8 2 REACTION (57-LA-139(G,2N)57-LA-137,,INT,,,EVAL) M0970 8 3 ANALYSIS Integration of evaluated cross section. M0970 8 4 STATUS (DEP,M0970004) Evaluated cross section. M0970 8 5 (TABLE) Data presented in Table 2. M0970 8 6 ENDBIB 4 0 M0970 8 7 NOCOMMON 0 0 M0970 8 8 DATA 3 29 M0970 8 9 EN-MAX DATA DATA-ERR M0970 8 10 MEV MB*MEV MB*MEV M0970 8 11 25.41 389.17 9.55 M0970 8 12 27.00 407.23 9.87 M0970 8 13 ENDDATA 4 0 M0970 8 14 ENDSUBENT 13 0 M0970 899999 ENDENTRY 8 0 M097099999999