ENTRY M0552 20190524 M100M055200000001 SUBENT M0552001 20190524 M100M055200100001 BIB 12 48 M055200100002 TITLE Compton scattering from the proton. M055200100003 AUTHOR (E.L.Hallin,D.Amendt,J.C.Bergstrom,H.S.Caplan, M055200100004 R.Igarashi,D.M.Skopik,E.C.Booth,D.Delli Carpini, M055200100005 J.P.Miller,F.J.Federspiel,B.E.MacGibbon, A.M.Nathan) M055200100006 REFERENCE (J,PR/C,48,1497,1993) M055200100007 INSTITUTE (1CANSAS,1USAUI) + Boston.Univ. of Saskatchewan, M055200100008 Saskatoon. M055200100009 FACILITY (LINAC,1CANSAS) Linac of the Saskatchewan accelerator M055200100010 laboratory, USA. M055200100011 INC-SOURCE (BRST) M055200100012 SAMPLE Liquid hydrogen target was a 10.2 cm-diam by M055200100013 12.7 cm-long cylinder made of 35-mg/cm**2 Mylar. M055200100014 METHOD (EXTB) M055200100015 DETECTOR (NAICR) The high resolution total absorption NaI(Tl) M055200100016 scintillation counter. M055200100017 ERR-ANALYS (ERR-S) Statistical errors. M055200100018 (ERR-SYS) Systematic errors: M055200100019 (ERR-1) 3 % error in the calibration of quantameter; M055200100020 (ERR-2) 2 % uncertainty in target thickness due to M055200100021 bubbling in the liquid-hydrogen target; M055200100022 (ERR-3) 0.3% error in the determination of the overall M055200100023 detection efficiency; M055200100024 (ERR-4) 0.3 % error in solid angle. M055200100025 COMMENT The proton Compton effect has been studied in the M055200100026 region between the threshold for pion photoproduction M055200100027 and the delta(1232). The measurements were performed M055200100028 using bremsstrahlung from the high duty factor M055200100029 electron beam available at the Saskatchewan M055200100030 Accelerator Laboratory. Elastically scattered photons M055200100031 were detected with an energy resolution of M055200100032 approximately 1.5 % using a large NaI total M055200100033 absorption scintillation detector. Differential cross M055200100034 sections were measured for photon energies in the M055200100035 range Eg = 136 - 289 MeV and for angles in the range M055200100036 theta-lab = 25 - 135 deg. The angular distributions M055200100037 and the excitation functions derived from these data M055200100038 are in agreement with recent theoretical analysis. M055200100039 The results were interpreted within a formalism based M055200100040 in part on dispersion relations to obtain M055200100041 model-dependent estimates of the electric and M055200100042 magnetic polarizabilities. M055200100043 HISTORY (19990304C) Data were compiled at the USA BNL NNDC by M055200100044 V.V.Varlamov. M055200100045 (20190524A) Corrected by SD and VV: ERR-ANALYS, ERR-1 M055200100046 ->ERR-SYS, REACTION (BRS -> BRA), major corrections M055200100047 in SUBENTs, SUBENTS 002 - 005 merged in 002, SUBENTS M055200100048 003 - 005 deleted, SUBENTS 006 - 017 merged in SUBENT M055200100049 006, SUBENTS 007 - 017 deleted, lowercase. M055200100050 ENDBIB 48 0 M055200100051 COMMON 4 3 M055200100052 ERR-1 ERR-2 ERR-3 ERR-4 M055200100053 PER-CENT PER-CENT PER-CENT PER-CENT M055200100054 3. 2. 0.3 0.3 M055200100055 ENDCOMMON 3 0 M055200100056 ENDSUBENT 55 0 M055200199999 SUBENT M0552002 20190524 M100M055200200001 BIB 3 4 M055200200002 REACTION (1-H-1(G,EL)1-H-1,,DA,,BRS) M055200200003 STATUS (TABLE) Table 1 from Phys.Rev.,C48(1993)1497 M055200200004 HISTORY (20190524A) Corrected by SD and VV: STATUS, DATA-ERR-> M055200200005 ERR-S, ERR-1-> ERR-SYS, DATA substituted. M055200200006 ENDBIB 4 0 M055200200007 NOCOMMON 0 0 M055200200008 DATA 5 21 M055200200009 EN ANG-CM DATA-CM ERR-S ERR-SYS M055200200010 MEV ADEG NB/SR NB/SR NB/SR M055200200011 149. 51. 6.06 0.60 0.23 M055200200012 149. 67. 7.94 1.38 0.29 M055200200013 149. 91. 13.1 0.5 0.5 M055200200014 149. 140. 27.4 1.0 1.0 M055200200015 182. 31. 13.5 2.2 0.5 M055200200016 182. 60. 17.2 1.0 0.6 M055200200017 182. 90. 24.4 1.4 0.9 M055200200018 182. 114. 34.5 1.4 1.3 M055200200019 182. 141. 46.4 1.6 1.7 M055200200020 230. 30. 52.0 5.5 1.9 M055200200021 230. 54. 53.2 4.2 2.0 M055200200022 230. 89. 55.6 3.3 2.1 M055200200023 230. 119. 72.3 3.1 2.7 M055200200024 230. 140. 96.0 3.4 3.6 M055200200025 230. 142. 88.4 3.0 3.2 M055200200026 286. 31. 217. 38. 8. M055200200027 286. 49. 183. 20. 7. M055200200028 286. 72. 160. 9. 6. M055200200029 286. 91. 163. 11. 6. M055200200030 286. 123. 188. 11. 7. M055200200031 286. 144. 228. 11. 9. M055200200032 ENDDATA 23 0 M055200200033 ENDSUBENT 32 0 M055200299999 NOSUBENT M0552003 20190524 M100M055200300001 NOSUBENT M0552004 20190524 M100M055200400001 NOSUBENT M0552005 20190524 M100M055200500001 SUBENT M0552006 20190524 M100M055200600001 BIB 4 9 M055200600002 REACTION (1-H-1(G,EL)1-H-1,,DA,,BRS) M055200600003 FLAG (1.) Result of interpolation using cubic spline M055200600004 interpolation, in order to fill in the gaps in M055200600005 excitation functions, where this can be done in a M055200600006 sufficiently accurate and reliable way. M055200600007 STATUS (TABLE) Table 2 from Phys.Rev.,C48(1993)1497 M055200600008 HISTORY (20190524A) Corrected by SD and VV: STATUS updated. M055200600009 DATA-ERR -> ERR-S, ERR-1 -> ERR-SYS, DATA M055200600010 substituted. M055200600011 ENDBIB 9 0 M055200600012 NOCOMMON 0 0 M055200600013 DATA 6 83 M055200600014 ANG-CM EN DATA ERR-S ERR-SYS FLAG M055200600015 ADEG MEV NB/SR NB/SR NB/SR NO-DIM M055200600016 31. 176. 6.0 3.8 0.2 M055200600017 31. 181. 12.9 4.1 0.5 M055200600018 31. 186. 15.7 5.2 0.6 M055200600019 31. 192. 17.1 6.0 0.7 M055200600020 31. 227. 40. 9. 2. M055200600021 31. 232. 47. 10. 2. M055200600022 31. 237. 56. 15. 2. M055200600023 31. 285. 241. 50. 9. M055200600024 31. 290. 198. 74. 8. M055200600025 49. 284. 174. 26. 7. M055200600026 49. 290. 223. 33. 9. M055200600027 51. 135. 7.09 1.58 0.30 M055200600028 51. 140. 6.79 1.24 0.29 M055200600029 51. 146. 6.54 1.16 0.28 M055200600030 51. 151. 4.80 0.97 0.21 M055200600031 51. 157. 6.71 1.26 0.29 M055200600032 51. 162. 7.08 1.83 0.31 M055200600033 51. 180. 16.2 2.2 0.6 1. M055200600034 51. 186. 16.8 2.3 0.8 1. M055200600035 51. 192. 18.0 2.5 1.1 1. M055200600036 51. 238. 76. 10. 4. 1. M055200600037 51. 282. 171. 28. 8. 1. M055200600038 51. 291. 223. 34. 10. 1. M055200600039 54. 226. 41.5 7.3 1.6 M055200600040 54. 232. 43.2 7.1 1.6 M055200600041 54. 237. 77.7 9.6 3.0 M055200600042 60. 174. 15.1 2.1 0.6 M055200600043 60. 180. 17.3 1.7 0.7 M055200600044 60. 186. 17.5 1.8 0.7 M055200600045 60. 192. 19.4 2.4 0.8 M055200600046 60. 197. 12.8 5.3 0.6 M055200600047 67. 138. 7.4 4.0 0.3 M055200600048 67. 144. 4.2 3.0 0.2 M055200600049 67. 149. 8.1 2.8 0.3 M055200600050 67. 150. 7.5 2.6 0.3 M055200600051 67. 155. 9.8 2.2 0.4 M055200600052 67. 156. 9.3 2.7 0.4 M055200600053 67. 161. 12.4 1.9 0.5 M055200600054 67. 162. 7.2 3.2 0.3 M055200600055 67. 167. 17.4 2.2 0.7 M055200600056 67. 168. 14.1 5.1 0.6 M055200600057 67. 173. 14.2 3.1 0.6 M055200600058 67. 178. 12.2 8.4 0.6 M055200600059 72. 283. 152. 11. 6. M055200600060 72. 290. 181. 15. 7. M055200600061 90. 132. 12.2 1.2 0.5 M055200600062 90. 139. 12.8 1.1 0.5 M055200600063 90. 145. 11.3 0.9 0.4 M055200600064 90. 152. 13.9 0.8 0.5 M055200600065 90. 158. 16.7 0.9 0.7 M055200600066 90. 165. 22.8 1.6 0.9 M055200600067 90. 172. 21.8 2.7 0.8 M055200600068 90. 179. 22.1 2.6 0.9 M055200600069 90. 186. 24.6 2.6 1.0 M055200600070 90. 192. 31.2 3.1 1.2 M055200600071 90. 223. 48.4 4.7 1.8 M055200600072 90. 230. 52.8 5.0 2.0 M055200600073 90. 238. 81.5 7.3 3.2 M055200600074 90. 282. 152. 12. 6. M055200600075 90. 289. 196. 17. 8. M055200600076 113. 171. 27.0 2.3 1.0 M055200600077 113. 179. 31.7 2.2 1.2 M055200600078 113. 186. 38.5 2.4 1.5 M055200600079 113. 194. 46.6 3.6 1.8 M055200600080 119. 222. 53.4 3.5 2.0 M055200600081 119. 231. 72.4 4.2 2.8 M055200600082 119. 239. 128. 9. 5. M055200600083 122. 281. 172. 9. 7. M055200600084 122. 291. 239. 16. 10. M055200600085 141. 130. 22.0 1.7 0.8 M055200600086 141. 138. 25.3 1.6 1.0 M055200600087 141. 146. 24.1 1.6 0.9 M055200600088 141. 154. 29.8 1.8 1.1 M055200600089 141. 162. 40.8 2.4 1.6 M055200600090 141. 170. 56.0 2.4 2.1 M055200600091 141. 179. 44.2 2.3 1.7 M055200600092 141. 188. 46.4 2.7 1.8 M055200600093 141. 196. 68.6 6.4 2.8 M055200600094 141. 222. 73.0 3.4 2.8 M055200600095 141. 222. 71.7 3.1 2.7 M055200600096 141. 232. 99.3 4.3 3.8 M055200600097 141. 232. 96.3 3.9 3.6 M055200600098 141. 282. 193. 9. 8. M055200600099 ENDDATA 85 0 M055200600100 ENDSUBENT 99 0 M055200699999 NOSUBENT M0552007 20190524 M100M055200700001 NOSUBENT M0552008 20190524 M100M055200800001 NOSUBENT M0552009 20190524 M100M055200900001 NOSUBENT M0552010 20190524 M100M055201000001 NOSUBENT M0552011 20190524 M100M055201100001 NOSUBENT M0552012 20190524 M100M055201200001 NOSUBENT M0552013 20190524 M100M055201300001 NOSUBENT M0552014 20190524 M100M055201400001 NOSUBENT M0552015 20190524 M100M055201500001 NOSUBENT M0552016 20190524 M100M055201600001 NOSUBENT M0552017 20190524 M100M055201700001 ENDENTRY 17 0 M055299999999