ENTRY L0289 20250806 L028900000001 SUBENT L0289001 20250806 20251001 L028900100001 BIB 12 49 L028900100002 TITLE Deviations from the Porter-Thomas Distribution due to L028900100003 Nonstatistical gamma Decay below the 150Nd Neutron L028900100004 Separation Threshold L028900100005 AUTHOR (O.Papst,J.Isaak,V.Werner,D.Savran,N.Pietralla, L028900100006 G.Battaglia,T.Beck,M.Beuschlein,S.W.Finch, L028900100007 U.Friman-Gayer,K.E.Ide,R.V.F.Janssens,M.D.Jones, L028900100008 J.Kleemann,B.Loher,M.Scheck,M.Spieker,W.Tornow, L028900100009 R.Zidarova,A.Zilges) L028900100010 REFERENCE (J,PRL,135,052501,2025) Main reference. L028900100011 #doi:10.1103/n6zw-zhz2 L028900100012 (T,PAPST,2024) L028900100013 #doi:10.26083/tuprints-00011437 L028900100014 Oliver Papst, Dr. Thesis, Technische Universitat L028900100015 Darmstadt L028900100016 INSTITUTE (2GERTHD,2GERGSI,1USADKE,1USATNL,1USANCA,1USAMSU, L028900100017 2GERKLN) L028900100018 (2UK UK) University of Strathclyde, Glasgow G4 0NG, L028900100019 United Kingdom L028900100020 (2UK UK) School of Computing, Engineering, and L028900100021 Physical Sciences, University of the West of Scotland, L028900100022 Paisley PA1 2BE, United Kingdom L028900100023 (2UK UK) The Scottish Universities Physics Alliance, L028900100024 Glasgow G12 8QQ, United Kingdom L028900100025 FACILITY (ESTRG,1USATNL) The Triangle Universities Nuclear L028900100026 Laboratory (TUNL) High Intensity gamma-ray L028900100027 Source (HIgS). L028900100028 INC-SOURCE (LCS) The facility provides quasimonochromatic photon L028900100029 beams from laser-Compton backscattering (LCB) in the L028900100030 MeV range. The machine was operated in a new L028900100031 high-resolution mode. It reduces the spectral L028900100032 bandwidth of the photon beam to about 1.8% by L028900100033 optimizing the electron beam parameters and using L028900100034 narrower apertures for the Compton-scattering L028900100035 geometry at the expense of photon-flux intensity. L028900100036 DETECTOR (HPGE,SCIN) Four high-purity germanium (HPGe) L028900100037 detectors, four lanthanum bromide (LaBr3) detectors. L028900100038 SAMPLE (60-ND-150,ENR=0.936) Target composed of 11.583(1) g L028900100039 of Nd2O3 enriched to 93.60(2)% of 150Nd. L028900100040 METHOD Nuclear resonance fluorescence (NRF) experiment with L028900100041 quasimonochromatic linearly polarized photon beams L028900100042 below particle separation thresholds. The measured L028900100043 experimental average cross sections sigmaexp are the L028900100044 sum of nonresonant elastic scattering processes and L028900100045 NRF processes. L028900100046 ERR-ANALYS (DATA-ERR) No details on sources of uncertainties. L028900100047 CORRECTION The correction of the detector response into a single L028900100048 optimization procedure per energy setting, taking L028900100049 into account data from all detectors. L028900100050 HISTORY (20250806C) BP L028900100051 ENDBIB 49 0 L028900100052 NOCOMMON 0 0 L028900100053 ENDSUBENT 52 0 L028900199999 SUBENT L0289002 20250806 20251001 L028900200001 BIB 3 8 L028900200002 REACTION (60-ND-150(G,EL)60-ND-150,EP,SIG) Partial cross L028900200003 sections for E1 transitions L028900200004 ANALYSIS The photo scattering cross section sigmagg only L028900200005 corresponds to ground-state decays and is also given L028900200006 as a decomposition into E1 and M1 contributions. L028900200007 STATUS (DEP,L0289004) L028900200008 (TABLE,,O.Papst+,J,PRL,135,052501,2025) Table - I L028900200009 Supplemental material. L028900200010 ENDBIB 8 0 L028900200011 COMMON 1 3 L028900200012 POLAR L028900200013 NO-DIM L028900200014 1. L028900200015 ENDCOMMON 3 0 L028900200016 DATA 6 43 L028900200017 EN EN-RSL DATA DATA-ERR +DATA-ERR -DATA-ERR L028900200018 MEV KEV MB MB MB MB L028900200019 2.95 100. 0.088 0.017 L028900200020 3.11 109. 0.03 0.014 L028900200021 3.22 87. 0.068 0.015 L028900200022 3.31 109. 0.064 0.016 L028900200023 3.41 112. 0.075 0.016 L028900200024 3.52 115. 0.08 0.016 L028900200025 3.62 116. 0.31 0.033 L028900200026 3.71 119. 0.35 0.04 L028900200027 3.81 124. 0.078 0.017 L028900200028 3.9 128. 0.165 0.024 L028900200029 4.02 102. 0.32 0.03 L028900200030 4.1 106. 0.254 0.029 L028900200031 4.22 104. 0.225 0.027 L028900200032 4.31 108. 0.244 0.029 L028900200033 4.39 110. 0.15 0.022 L028900200034 4.5 114. 0.216 0.027 L028900200035 4.6 109. 0.3 0.03 0.04L028900200036 4.7 113. 0.237 0.028 L028900200037 4.79 122. 0.235 0.027 L028900200038 4.89 117. 0.11 0.10 L028900200039 5. 100. 0.34 0.04 L028900200040 5.1 98. 0.37 0.04 L028900200041 5.21 103. 0.49 0.05 L028900200042 5.31 109. 0.47 0.05 L028900200043 5.4 104. 0.54 0.05 L028900200044 5.51 106. 0.85 0.07 L028900200045 5.61 109. 0.66 0.06 L028900200046 5.71 115. 0.72 0.07 L028900200047 5.78 125. 0.83 0.07 L028900200048 5.81 120. 0.94 0.08 L028900200049 5.91 120. 0.76 0.07 L028900200050 6.02 109. 0.92 0.08 L028900200051 6.06 154. 1.05 0.09 L028900200052 6.12 115. 0.85 0.07 L028900200053 6.2 118. 0.7 0.06 L028900200054 6.3 121. 0.69 0.06 L028900200055 6.4 117. 0.5 0.05 L028900200056 6.5 114. 0.61 0.06 L028900200057 6.59 128. 0.6 0.06 L028900200058 6.69 141. 0.48 0.05 L028900200059 6.79 134. 0.47 0.05 L028900200060 6.89 130. 0.45 0.05 L028900200061 6.99 131. 0.39 0.04 L028900200062 ENDDATA 45 0 L028900200063 ENDSUBENT 62 0 L028900299999 SUBENT L0289003 20250806 20251001 L028900300001 BIB 3 8 L028900300002 REACTION (60-ND-150(G,EL)60-ND-150,MP,SIG) Partial cross L028900300003 sections for M1 transitions L028900300004 ANALYSIS The photo scattering cross section sigmagg only L028900300005 corresponds to ground-state decays and is also given L028900300006 as a decomposition into E1 and M1 contributions. L028900300007 STATUS (DEP,L0289004) L028900300008 (TABLE,,O.Papst+,J,PRL,135,052501,2025) Table - I L028900300009 Supplemental material. L028900300010 ENDBIB 8 0 L028900300011 COMMON 1 3 L028900300012 POLAR L028900300013 NO-DIM L028900300014 1. L028900300015 ENDCOMMON 3 0 L028900300016 DATA 4 43 L028900300017 EN EN-RSL DATA DATA-ERR L028900300018 MEV KEV MB MB L028900300019 2.95 100. 0.57 0.04 L028900300020 3.11 109. 0.433 0.034 L028900300021 3.22 87. 0.238 0.019 L028900300022 3.31 109. 0.207 0.018 L028900300023 3.41 112. 0.133 0.012 L028900300024 3.52 115. 0.114 0.011 L028900300025 3.62 116. 0.113 0.011 L028900300026 3.71 119. 0.205 0.017 L028900300027 3.81 124. 0.176 0.016 L028900300028 3.9 128. 0.142 0.014 L028900300029 4.02 102. 0.09 0.009 L028900300030 4.1 106. 0.137 0.012 L028900300031 4.22 104. 0.085 0.008 L028900300032 4.31 108. 0.089 0.009 L028900300033 4.39 110. 0.174 0.016 L028900300034 4.5 114. 0.069 0.008 L028900300035 4.6 109. 0.052 0.006 L028900300036 4.7 113. 0.07 0.007 L028900300037 4.79 122. 0.058 0.006 L028900300038 4.89 117. 0.23 0.016 L028900300039 5. 100. 0.056 0.007 L028900300040 5.1 98. 0.055 0.007 L028900300041 5.21 103. 0.045 0.006 L028900300042 5.31 109. 0.049 0.006 L028900300043 5.4 104. 0.05 0.007 L028900300044 5.51 106. 0.046 0.007 L028900300045 5.61 109. 0.052 0.007 L028900300046 5.71 115. 0.038 0.007 L028900300047 5.78 125. 0.053 0.007 L028900300048 5.81 120. 0.044 0.009 L028900300049 5.91 120. 0.053 0.007 L028900300050 6.02 109. 0.061 0.009 L028900300051 6.06 154. 0.082 0.011 L028900300052 6.12 115. 0.078 0.009 L028900300053 6.2 118. 0.069 0.008 L028900300054 6.3 121. 0.054 0.007 L028900300055 6.4 117. 0.064 0.007 L028900300056 6.5 114. 0.045 0.007 L028900300057 6.59 128. 0.058 0.008 L028900300058 6.69 141. 0.042 0.006 L028900300059 6.79 134. 0.065 0.008 L028900300060 6.89 130. 0.11 0.04 L028900300061 6.99 131. 0.057 0.009 L028900300062 ENDDATA 45 0 L028900300063 ENDSUBENT 62 0 L028900399999 SUBENT L0289004 20250806 20251001 L028900400001 BIB 2 3 L028900400002 REACTION (60-ND-150(G,EL)60-ND-150,,SIG) L028900400003 STATUS (TABLE,,O.Papst+,J,PRL,135,052501,2025) Table - I L028900400004 Supplemental material. L028900400005 ENDBIB 3 0 L028900400006 NOCOMMON 0 0 L028900400007 DATA 4 43 L028900400008 EN EN-RSL DATA DATA-ERR L028900400009 MEV KEV MB MB L028900400010 2.95 100. 0.66 0.06 L028900400011 3.11 109. 0.46 0.05 L028900400012 3.22 87. 0.306 0.032 L028900400013 3.31 109. 0.271 0.03 L028900400014 3.41 112. 0.209 0.026 L028900400015 3.52 115. 0.194 0.025 L028900400016 3.62 116. 0.42 0.04 L028900400017 3.71 119. 0.56 0.05 L028900400018 3.81 124. 0.254 0.029 L028900400019 3.9 128. 0.31 0.03 L028900400020 4.02 102. 0.41 0.04 L028900400021 4.1 106. 0.39 0.04 L028900400022 4.22 104. 0.311 0.033 L028900400023 4.31 108. 0.33 0.04 L028900400024 4.39 110. 0.325 0.034 L028900400025 4.5 114. 0.285 0.032 L028900400026 4.6 109. 0.35 0.04 L028900400027 4.7 113. 0.31 0.03 L028900400028 4.79 122. 0.293 0.032 L028900400029 4.89 117. 0.36 0.04 L028900400030 5. 100. 0.4 0.04 L028900400031 5.1 98. 0.42 0.04 L028900400032 5.21 103. 0.54 0.05 L028900400033 5.31 109. 0.52 0.05 L028900400034 5.4 104. 0.59 0.06 L028900400035 5.51 106. 0.9 0.08 L028900400036 5.61 109. 0.71 0.06 L028900400037 5.71 115. 0.76 0.07 L028900400038 5.78 125. 0.89 0.08 L028900400039 5.81 120. 0.99 0.08 L028900400040 5.91 120. 0.81 0.07 L028900400041 6.02 109. 0.98 0.08 L028900400042 6.06 154. 1.13 0.01 L028900400043 6.12 115. 0.93 0.08 L028900400044 6.2 118. 0.77 0.07 L028900400045 6.3 121. 0.74 0.07 L028900400046 6.4 117. 0.56 0.05 L028900400047 6.5 114. 0.65 0.06 L028900400048 6.59 128. 0.66 0.06 L028900400049 6.69 141. 0.52 0.05 L028900400050 6.79 134. 0.54 0.05 L028900400051 6.89 130. 0.57 0.06 L028900400052 6.99 131. 0.45 0.04 L028900400053 ENDDATA 45 0 L028900400054 ENDSUBENT 53 0 L028900499999 SUBENT L0289005 20250806 20251001 L028900500001 BIB 2 2 L028900500002 REACTION (60-ND-150(G,0),,EN) L028900500003 STATUS (TABLE,,O.Papst,T,PAPST,2024) Table - 5.1 L028900500004 ENDBIB 2 0 L028900500005 NOCOMMON 0 0 L028900500006 DATA 2 37 L028900500007 DATA DATA-ERR L028900500008 KEV KEV L028900500009 3989.5 0.5 L028900500010 4033.21 0.26 L028900500011 4043.3 0.7 L028900500012 4071.9 0.9 L028900500013 4080.4 0.6 L028900500014 4105.3 0.6 L028900500015 4193.1 0.8 L028900500016 4239.5 0.7 L028900500017 4251.63 0.31 L028900500018 4265.4 0.7 L028900500019 4312.8 0.5 L028900500020 4322.7 0.5 L028900500021 4490.34 0.27 L028900500022 4552.4 0.7 L028900500023 4564.4 0.24 L028900500024 4589.6 0.7 L028900500025 4610.5 0.6 L028900500026 4637.3 0.35 L028900500027 4643.1 0.4 L028900500028 4662.5 0.8 L028900500029 4701.3 0.6 L028900500030 4714. 0.4 L028900500031 4742.78 0.29 L028900500032 4805.7 0.7 L028900500033 4952.21 0.31 L028900500034 5114.5 0.7 L028900500035 5124. 0.6 L028900500036 5188.2 0.4 L028900500037 5205.5 0.5 L028900500038 5323.6 0.6 L028900500039 5351.1 0.4 L028900500040 5401.56 0.35 L028900500041 5438.6 0.4 L028900500042 5475. 0.1 L028900500043 5505.85 0.2 L028900500044 5523.6 0.5 L028900500045 5662.1 0.6 L028900500046 ENDDATA 39 0 L028900500047 ENDSUBENT 46 0 L028900599999 ENDENTRY 5 0 L028999999999