ENTRY O0918 20191011 O073O091800000001 SUBENT O0918001 20191011 O073O091800100001 BIB 9 27 O091800100002 TITLE Cross section measurements of the Nb-93(p,gamma)Mo-94 O091800100003 reaction at E(p)=1.4-1.9 MeV relevant to the O091800100004 nucleosynthetic P-process. O091800100005 AUTHOR (S.Harissopulos, E.Skreti, P.Tsagari, G.Souliotis, O091800100006 P.Demetriou, T.Paradellis, J.W.Hammer, R.Kunz, O091800100007 C.Angulo, S.Goriely, T.Rauscher) O091800100008 INSTITUTE (2GRCATH,2GERTHS,2BLGLVN,2BLGBRU,2SWTBAS) O091800100009 REFERENCE (J,PR/C,64,055804,2001) O091800100010 (J,NP/A,719,C115,2003) - same data O091800100011 ADD-RES (COMP).The statistical compound nuclear theory . O091800100012 (G-SPC,RRATE,POT,LD) O091800100013 FACILITY (DYNAM,2GERTHS)The 4-MV single-ended dynamitron O091800100014 accelerator of the University of Stuttgart. O091800100015 (VDGT,2GRCATH) The 5-MV Van de Graaff tandem O091800100016 accelerator of the Athens. O091800100017 METHOD (BCINT,SITA) O091800100018 (GSPEC) 871-keV quanta were measured O091800100019 COMMENT - By authors. In the present work, no direct gamma O091800100020 transition or other gamma-rays feeding into the ground O091800100021 state have been observed apart from the 871-KeV gamma O091800100022 transition. O091800100023 HISTORY (20011205C) O091800100024 (20050914A) REFERENCE was corrected O091800100025 (20050914U) Last checking has been done. O091800100026 (20140203A) SD: Corrections in dataset of Subent 3. O091800100027 Minor corrections in Subents 2-4. O091800100028 (20191011U) SD: Ref. added. O091800100029 ENDBIB 27 0 O091800100030 NOCOMMON 0 0 O091800100031 ENDSUBENT 30 0 O091800199999 SUBENT O0918002 20140203 O052O091800200001 BIB 9 28 O091800200002 REACTION (41-NB-93(P,G)42-MO-94,,SIG) Table1. O091800200003 COMMENT - By authors. The measurements were taken in Stuttgart.O091800200004 PART-DET (G) O091800200005 DETECTOR (HPGE) Gamma spectra were measured by using four large O091800200006 volume detectors O091800200007 SAMPLE In the set of measurements the target used was placed O091800200008 at 90 degree to the beam axis. It was produced by O091800200009 evaporating Nb/2-O/5 on a 0.4-mm thick tantalum O091800200010 backing, which was cooled with water during the whole O091800200011 experiment. It should be noted that the use of the O091800200012 Nb/2-O/5 target requires corrections for yield O091800200013 contribution from the O-17(p,p'gamma)O-17 reaction. O091800200014 The thickness of Nb in the Nb/2-O/5 target was found toO091800200015 be 125+-5 mug/cm**2. O091800200016 By considering the target stoichiometry one obtains a O091800200017 target total thickness of 180+-6 mug/ cm**2, which O091800200018 corresponds to a target thickness delta-E of 20 and 12 O091800200019 keV at a beam energy of 1.5-3-MeV, respectively. O091800200020 All targets used in the present work were also checked O091800200021 at the end of all measurements. No significant O091800200022 deterioration effects were found. O091800200023 ANALYSIS (INTAD) Total cross sections determined from the O091800200024 corrected angular distributions measured at stuttgart O091800200025 with the 180 mug/cm**2 thick Nb/2-O/5 target. O091800200026 ERR-ANALYS (DATA-ERR).The uncertainty is reported by authors. O091800200027 STATUS (TABLE) Tbl. 1 from PR/C,64,055804 O091800200028 HISTORY (20140203U) SD: ERR-T -> DATA-ERR according to O091800200029 EXFOR rules. Truncated zeros restored. O091800200030 ENDBIB 28 0 O091800200031 NOCOMMON 0 0 O091800200032 DATA 3 21 O091800200033 EN-CM DATA ERR-T O091800200034 MEV MICRO-B MICRO-B O091800200035 1.989 3.5 0.5 O091800200036 2.038 4.4 0.6 O091800200037 2.090 6.2 0.7 O091800200038 2.139 7.3 0.8 O091800200039 2.188 12.0 1.2 O091800200040 2.239 12.2 1.3 O091800200041 2.291 15.6 1.2 O091800200042 2.340 19.5 2.4 O091800200043 2.389 25. 3. O091800200044 2.440 28. 4. O091800200045 2.489 31. 4. O091800200046 2.540 40. 5. O091800200047 2.575 44. 6. O091800200048 2.639 49. 7. O091800200049 2.689 52. 5. O091800200050 2.739 58. 7. O091800200051 2.788 65. 7. O091800200052 2.839 69. 8. O091800200053 2.889 66. 8. O091800200054 2.939 70. 9. O091800200055 2.989 72. 10. O091800200056 ENDDATA 23 0 O091800200057 ENDSUBENT 56 0 O091800299999 SUBENT O0918003 20140203 O052O091800300001 BIB 9 47 O091800300002 REACTION 1(41-NB-93(P,G)42-MO-94,,SIG) Table2. O091800300003 2(41-NB-93(P,G)42-MO-94,,SIG,,SFC) Table2. O091800300004 PART-DET (G) O091800300005 DETECTOR (HPGE) Gamma spectra were taken by means of one O091800300006 detector of 80% relative efficiency that was placed O091800300007 either at 55 or 90 degree to the beam axis. O091800300008 SAMPLE In the set two different Nb targets positioned at 45 O091800300009 degree to the beam axis were used, namely, Nb/2-O/5 andO091800300010 a metallic Nb. The latter target was made by electron O091800300011 gun evaporation of metallic niobium of extreme high O091800300012 purity. The fluorine level in the metal was less thanO091800300013 1%. The energy region covered by the measurements O091800300014 using the metallic Nb was from 1.4 to 4.9 MeV. Both O091800300015 targets were on 0.4-mm thick Ta backings, which were O091800300016 cooled with air during the measurements. It was found O091800300017 that the thickness of Nb in the Nb/2-O/5 target was O091800300018 106+-6 mu-g/cm**2. The target had a total thickness of O091800300019 151+-7 mu-g/cm**2. For the metallic target the analysisO091800300020 yielded a thickness of 371+-18 mu-g/cm**2, which O091800300021 corresponds to lost energy =31 and 20-KeV at proton O091800300022 beam energies of 1.5 and 3-MeV, respectively. O091800300023 All targets used in the present work were also checked O091800300024 at the end of all measurements. No significant O091800300025 deterioration effects were found. O091800300026 CORRECTION In the case of the Nb/2-O/5 targets corrections for O091800300027 yield contributions from the O-17(p,p'gamma)O-17 O091800300028 reaction were necessary. The required corrections were O091800300029 performed with additional yield measurements carried O091800300030 out with a W-O/3 target, the thickness of W was found O091800300031 to be 153+-5 mu-g/cm**2 O091800300032 COMMENT -By authors. The measurements were carried out with O091800300033 metallic Nb in order to avoid any uncertainties arisingO091800300034 from the intruding O-17(p,p'gamma)O-17 reaction. AfterO091800300035 calculation of the effective bombarding energy, the O091800300036 yield data were transformed to cross sections by O091800300037 normalization to the Nb/2-O/5 angular distribution O091800300038 data. There were found to coincide within 5% with O091800300039 those determined from the angular distribution data O091800300040 obtained with the Nb/2-O/5 target. O091800300041 ERR-ANALYS (ERR-S) The cross sections values having an error of O091800300042 less than 5% are the means of at least two independent O091800300043 measurements. O091800300044 STATUS (TABLE) Tbl. 2 from PR/C,64,055804 O091800300045 HISTORY (20140203A) SD: DATA: 349.E+08 -> 116.E+08 at O091800300046 Ecm=2.418 MeV according to comment of Dr. T.Szucs. O091800300047 Ecm=3.331 -> 3.351, truncated zeros were restored O091800300048 according to the table. ERR-T -> ERR-S. O091800300049 ENDBIB 47 0 O091800300050 NOCOMMON 0 0 O091800300051 DATA 5 83 O091800300052 EN-CM DATA 1ERR-T 1DATA 2ERR-T 2 O091800300053 MEV MICRO-B MICRO-B MB*MEV MB*MEV O091800300054 1.422 0.05 0.01 349.E+08 70.E+08 O091800300055 1.462 0.08 0.01 360.E+08 45.E+08 O091800300056 1.502 0.12 0.02 355.E+08 59.E+08 O091800300057 1.542 0.16 0.02 316.E+08 39.E+08 O091800300058 1.582 0.20 0.02 268.E+08 27.E+08 O091800300059 1.622 0.28 0.02 258.E+08 18.E+08 O091800300060 1.662 0.38 0.01 245.E+08 7.E+08 O091800300061 1.702 0.45 0.03 205.E+08 14.E+08 O091800300062 1.741 0.68 0.07 224.E+08 24.E+08 O091800300063 1.781 0.89 0.09 212.E+08 21.E+08 O091800300064 1.821 1.6 0.1 279.E+08 17.E+08 O091800300065 1.861 1.8 0.1 207.E+08 13.E+08 O091800300066 1.901 2.1 0.1 203.E+08 10.E+08 O091800300067 1.941 3.0 0.2 218.E+08 15.E+08 O091800300068 1.981 3.9 0.2 216.E+08 11.E+08 O091800300069 2.020 4.1 0.2 205.E+08 9.E+08 O091800300070 2.060 5.3 0.2 175.E+08 7.E+08 O091800300071 2.100 6.4 0.2 160.E+08 5.E+08 O091800300072 2.140 7.5 0.2 152.E+08 4.E+08 O091800300073 2.179 10.5 0.4 169.E+08 7.E+08 O091800300074 2.219 11.3 0.4 144.E+08 5.E+08 O091800300075 2.259 13.7 0.5 140.E+08 5.E+08 O091800300076 2.299 15.7 0.5 129.E+08 4.E+08 O091800300077 2.339 20.0 0.8 133.E+08 5.E+08 O091800300078 2.378 22.0 0.8 120.E+08 4.E+08 O091800300079 2.418 26.0 0.8 116.E+08 4.E+08 O091800300080 2.498 30. 1. 87.E+08 2.E+08 O091800300081 2.537 38. 2. 86.E+08 4.E+08 O091800300082 2.577 40. 3. 80.E+08 6.E+08 O091800300083 2.617 45. 3. 79.E+08 5.E+08 O091800300084 2.656 50. 2. 78.E+08 3.E+08 O091800300085 2.696 56. 2. 69.E+08 3.E+08 O091800300086 2.736 57. 2. 61.E+08 2.E+08 O091800300087 2.776 54. 2. 49.E+08 2.E+08 O091800300088 2.815 60. 2. 47.E+08 2.E+08 O091800300089 2.855 65. 3. 43.E+08 2.E+08 O091800300090 2.895 64. 3. 37.E+08 2.E+08 O091800300091 2.934 66. 3. 33.E+08 2.E+08 O091800300092 2.974 66. 4. 28.E+08 2.E+08 O091800300093 2.994 75. 5. 30.E+08 2.E+08 O091800300094 3.014 81. 6. 30.E+08 2.E+08 O091800300095 3.053 92. 8. 30.E+08 3.E+08 O091800300096 3.093 92. 8. 26.E+08 2.E+08 O091800300097 3.133 108. 9. 27.E+08 2.E+08 O091800300098 3.173 114. 9. 25.E+08 2.E+08 O091800300099 3.192 120. 10. 25.E+08 2.E+08 O091800300100 3.232 121. 10. 22.E+08 2.E+08 O091800300101 3.272 125. 10. 20.E+08 2.E+08 O091800300102 3.311 130. 10. 18.3E+08 1.4E+08 O091800300103 3.351 149. 7. 18.5E+08 0.9E+08 O091800300104 3.391 145. 7. 16.E+08 0.8E+08 O091800300105 3.430 154. 7. 15.2E+08 0.7E+08 O091800300106 3.470 147. 12. 12.9E+08 1.1E+08 O091800300107 3.510 157. 12. 12.4E+08 0.9E+08 O091800300108 3.549 138. 12. 9.8E+08 0.9E+08 O091800300109 3.589 136. 11. 8.6E+08 0.7E+08 O091800300110 3.648 124. 10. 6.7E+08 0.6E+08 O091800300111 3.688 95. 9. 4.6E+08 0.4E+08 O091800300112 3.748 92. 9. 3.9E+08 0.4E+08 O091800300113 3.787 93. 9. 3.5E+08 0.3E+08 O091800300114 3.827 78. 8. 2.7E+08 0.3E+08 O091800300115 3.966 72. 6. 1.8E+08 0.2E+08 O091800300116 4.005 93. 6. 2.1E+08 0.2E+08 O091800300117 4.045 66. 5. 1.4E+08 0.1E+08 O091800300118 4.084 78. 5. 1.5E+08 0.1E+08 O091800300119 4.124 79. 5. 1.38E+08 0.09E+08 O091800300120 4.144 74. 5. 1.24E+08 0.08E+08 O091800300121 4.183 76. 6. 1.17E+08 0.09E+08 O091800300122 4.223 74. 6. 1.05E+08 0.09E+08 O091800300123 4.263 95. 7. 1.24E+08 0.09E+08 O091800300124 4.302 82. 7. 0.99E+08 0.08E+08 O091800300125 4.342 80. 6. 0.89E+08 0.07E+08 O091800300126 4.382 77. 7. 0.79E+08 0.07E+08 O091800300127 4.421 89. 8. 0.84E+08 0.08E+08 O091800300128 4.461 93. 8. 0.82E+08 0.07E+08 O091800300129 4.500 106. 8. 0.86E+08 0.07E+08 O091800300130 4.540 98. 8. 0.74E+08 0.06E+08 O091800300131 4.580 122. 9. 0.86E+08 0.06E+08 O091800300132 4.619 161. 12. 1.05E+08 0.08E+08 O091800300133 4.659 142. 11. 0.86E+08 0.07E+08 O091800300134 4.718 126. 10. 0.69E+08 0.06E+08 O091800300135 4.758 196. 13. 1.00E+08 0.07E+08 O091800300136 4.797 273. 23. 1.31E+08 0.11E+08 O091800300137 ENDDATA 85 0 O091800300138 ENDSUBENT 137 0 O091800399999 SUBENT O0918004 20140203 O052O091800400001 BIB 5 8 O091800400002 REACTION (41-NB-93(P,G)42-MO-94,PAR,DA,,REL) O091800400003 STATUS (CURVE) By CAJAD. From figure 3 O091800400004 ERR-ANALYS (ANG-ERR-D) Error in digitizing the angle values O091800400005 (DATA-ERR) The uncertainty is shown on figure without O091800400006 any analysis O091800400007 EN-SEC (E,G) O091800400008 HISTORY (20140203U) SD: ERR-T -> DATA-ERR according to O091800400009 EXFOR rules. O091800400010 ENDBIB 8 0 O091800400011 COMMON 2 3 O091800400012 ANG-ERR-D E O091800400013 ADEG KEV O091800400014 0.6 871. O091800400015 ENDCOMMON 3 0 O091800400016 DATA 4 32 O091800400017 EN ANG DATA DATA-ERR O091800400018 MEV ADEG ARB-UNITS ARB-UNITS O091800400019 2.3 2.2 8.52 0.26 O091800400020 2.3 13.9 8.6 0.26 O091800400021 2.3 48.4 7.87 0.23 O091800400022 2.3 63.9 7.16 0.12 O091800400023 2.3 92.1 5.54 0.06 O091800400024 2.3 106.7 6.61 0.11 O091800400025 2.3 125.8 8.12 0.06 O091800400026 2.3 139.5 8.27 0.28 O091800400027 2.5 1.2 18.7 0.4 O091800400028 2.5 13.6 18.6 0.4 O091800400029 2.5 48.4 17.9 0.4 O091800400030 2.5 63.2 16.7 0.4 O091800400031 2.5 91.4 13.71 0.25 O091800400032 2.5 106.3 15. 0.3 O091800400033 2.5 124.9 18.6 0.4 O091800400034 2.5 140.2 18.8 0.5 O091800400035 2.75 1.9 30.3 1.1 O091800400036 2.75 13.9 32.3 1.2 O091800400037 2.75 48.8 30.8 0.9 O091800400038 2.75 63.8 26.3 0.8 O091800400039 2.75 92.1 19.95 0.2 O091800400040 2.75 107. 25.2 0.8 O091800400041 2.75 126.1 30.7 0.7 O091800400042 2.75 140.3 32. 0.9 O091800400043 2.85 1.7 40.1 1.7 O091800400044 2.85 13.1 40.7 1.6 O091800400045 2.85 48.6 38.8 1.6 O091800400046 2.85 64. 36.7 1.4 O091800400047 2.85 92.8 26.3 0.9 O091800400048 2.85 107.4 32.8 1.4 O091800400049 2.85 126. 40. 1.5 O091800400050 2.85 141.4 40.2 1.8 O091800400051 ENDDATA 34 0 O091800400052 ENDSUBENT 51 0 O091800499999 SUBENT O0918005 20140203 O052O091800500001 BIB 6 21 O091800500002 REACTION (41-NB-93(P,G)42-MO-94,PAR,DA,,LEG/RS) O091800500003 ANALYSIS The analysis of the corrected angular distributions O091800500004 yielded new values for the A2 and A4 coefficients, O091800500005 which, however, are still statistically constant in theO091800500006 energy range 2-3 MeV, with mean values A2=0.315(10) andO091800500007 A4=0.181(9) (see digitized data) O091800500008 Based on this fact, it was further assumed that O091800500009 the angular distributions of the 2(1)+ -> 0(1)+ gamma- O091800500010 transition of the 94Mo nucleus at Ep =< 2 MeV and O091800500011 Ep >= 3 MeV would not deviate significantly from those O091800500012 measured at Ep= 2-3 MeV, i.e., they could also be O091800500013 described by W(theta)=[1 + 0.315(10) x O091800500014 x P2(cos(theta))-0.181(9) x P4(cos(theta))] O091800500015 STATUS (CURVE) By CAJAD. From figure 5 O091800500016 ERR-ANALYS (EN-ERR-DIG).Error in digitizing the incident O091800500017 energy values O091800500018 (DATA-ERR) The uncertainty is shown on figure without O091800500019 any analysis. O091800500020 EN-SEC (E,G) O091800500021 HISTORY (20140203U) SD: ERR-T -> DATA-ERR according to O091800500022 EXFOR rules. ANALYSIS was added. O091800500023 ENDBIB 21 0 O091800500024 COMMON 2 3 O091800500025 EN-ERR-DIG E O091800500026 MEV KEV O091800500027 4.E-03 871. O091800500028 ENDCOMMON 3 0 O091800500029 DATA 4 42 O091800500030 EN NUMBER DATA DATA-ERR O091800500031 MEV NO-DIM NO-DIM NO-DIM O091800500032 2.005 2. 0.32 0.1 O091800500033 2.007 4. -0.16 0.09 O091800500034 2.055 2. 0.31 0.08 O091800500035 2.057 4. -0.19 0.07 O091800500036 2.1 2. 0.32 0.07 O091800500037 2.103 4. -0.08 0.07 O091800500038 2.153 4. -0.14 0.06 O091800500039 2.156 2. 0.36 0.07 O091800500040 2.203 4. -0.12 0.07 O091800500041 2.204 2. 0.35 0.07 O091800500042 2.254 4. -0.09 0.07 O091800500043 2.257 2. 0.3 0.07 O091800500044 2.304 4. -0.13 0.06 O091800500045 2.311 2. 0.33 0.06 O091800500046 2.355 2. 0.28 0.05 O091800500047 2.355 4. -0.08 0.06 O091800500048 2.4 4. -0.14 0.06 O091800500049 2.406 2. 0.27 0.06 O091800500050 2.454 2. 0.32 0.06 O091800500051 2.456 4. -0.16 0.06 O091800500052 2.501 2. 0.27 0.06 O091800500053 2.504 4. -0.12 0.06 O091800500054 2.548 4. -0.18 0.07 O091800500055 2.552 2. 0.34 0.07 O091800500056 2.595 2. 0.37 0.07 O091800500057 2.605 4. -0.11 0.07 O091800500058 2.65 4. -0.16 0.06 O091800500059 2.653 2. 0.29 0.06 O091800500060 2.7 4. -0.15 0.06 O091800500061 2.701 2. 0.37 0.06 O091800500062 2.753 4. -0.16 0.06 O091800500063 2.754 2. 0.34 0.06 O091800500064 2.799 2. 0.31 0.06 O091800500065 2.801 4. -0.15 0.06 O091800500066 2.843 4. -0.16 0.06 O091800500067 2.85 2. 0.31 0.06 O091800500068 2.897 2. 0.3 0.06 O091800500069 2.903 4. -0.11 0.07 O091800500070 2.948 2. 0.26 0.06 O091800500071 2.956 4. -0.08 0.06 O091800500072 2.99 4. -0.1 0.05 O091800500073 2.998 2. 0.27 0.06 O091800500074 ENDDATA 44 0 O091800500075 ENDSUBENT 74 0 O091800599999 ENDENTRY 5 0 O091899999999