ENTRY M0609 20130627 M067M060900000001 SUBENT M0609001 20130627 M067M060900100001 BIB 13 38 M060900100002 TITLE Photoprotons from 44Ca, 45Sc and 46Ti. M060900100003 AUTHOR (S.Oikawa,K.Shoda) M060900100004 REFERENCE (J,NP/A,277,301,1977) M060900100005 #doi:10.1016/0375-9474(77)90315-3 M060900100006 INSTITUTE (2JPNTOH) M060900100007 FACILITY (LINAC,2JPNTOH) Tohoku University linear accelerator. M060900100008 INC-SOURCE (VPH) Virtual photons. M060900100009 METHOD (MAGFR) Browne-Buchner type broad-range magnetic M060900100010 spectrometer with 100 Si(Li) solid-state detectors M060900100011 in the focal plane. M060900100012 DETECTOR (SILI) M060900100013 ANALYSIS (LEAST,INTAD) The Cook least-square method for (g,p) M060900100014 reaction differential cross section obtaining from M060900100015 (e,e'p) reaction cross sections measured using the M060900100016 direct proton detection with the following M060900100017 integration over angles. M060900100018 ERR-ANALYS (DATA-ERR) Root-mean-squared errors. M060900100019 COMMENT The cross sections of the (e,e'p) reaction on 44Ca, M060900100020 45Sc and 46Ti have been measured and used to deduce M060900100021 (g,p) cross sections. Together with (g,n) cross M060900100022 sections from others, these data allow to estimate M060900100023 of the T< and T> GDR cross sections. The M060900100024 experimental results seem to be consistent with the M060900100025 theory on the isospin splitting. The (g,p-0) or M060900100026 (g,(p-0)+(p-1)) and (g,a-0) cross sections have been M060900100027 also been measured. The ratio sig(g,p-0)/sig(g,p) M060900100028 indicates a contribution of a statistical nature in M060900100029 the T> gdr region and some additional direct modes M060900100030 in the T> GDR region. The contribution of one (45Sc) M060900100031 or two (46Ti) extra protons is discussed and it is M060900100032 found that the valence nucleons contribute to GDR in M060900100033 an independent way. M060900100034 STATUS (CURVE) Data from the figure 9 (uncertainties from M060900100035 figures 6 - 8). M060900100036 HISTORY (20000314C) Data were compiled at the Russia MSU SINP M060900100037 CDFE by V.Varlamov. M060900100038 (20130627A) Corrected by V.Varlamov: REACTION, M060900100039 ERR-ANALYS, lowercase. M060900100040 ENDBIB 38 0 M060900100041 COMMON 1 3 M060900100042 ANG M060900100043 ADEG M060900100044 90. M060900100045 ENDCOMMON 3 0 M060900100046 ENDSUBENT 45 0 M060900199999 SUBENT M0609002 20130627 M067M060900200001 BIB 4 10 M060900200002 REACTION (20-CA-44(G,X)1-H-1,,DA,,4PI/BRS) M060900200003 Total photoproton production cross section: M060900200004 the sum of (g,p), (g,np) and 2(g,2p) reactions. M060900200005 COMMENT The 20-Ca-44(g,pn) and 20-Ca-44(g,2p) reaction M060900200006 thresholds are 21.8 MeV and 21.6 MeV M060900200007 correspondingly. M060900200008 An isotopic angular distribution was assumed. M060900200009 SAMPLE Self-supporting metal foil of 98 % enriched 44Ca M060900200010 (3.97 mg/cm**2 thick). M060900200011 HISTORY (20130627A) Corrected by V.Varlamov: BRA -> BRS. M060900200012 ENDBIB 10 0 M060900200013 NOCOMMON 0 0 M060900200014 DATA 3 29 M060900200015 EN DATA DATA-ERR M060900200016 MEV MB MB M060900200017 15.66 .676 M060900200018 15.99 1.081 M060900200019 16.32 2.027 M060900200020 16.65 2.36 M060900200021 16.98 2.162 M060900200022 17.31 2.669 M060900200023 17.64 3.041 M060900200024 17.97 3.92 .59 M060900200025 18.3 4.189 M060900200026 18.63 4.865 M060900200027 18.96 5.743 M060900200028 19.29 6.858 M060900200029 19.62 8.446 M060900200030 19.85 9.865 M060900200031 20.28 11.189 .59 M060900200032 20.61 12.162 M060900200033 20.94 13.041 M060900200034 21.27 13.514 M060900200035 21.6 13.851 M060900200036 21.93 13.851 M060900200037 22.26 13.716 M060900200038 22.59 13.514 M060900200039 22.92 13.412 M060900200040 23.25 13.108 M060900200041 23.58 12.905 M060900200042 23.91 12.568 M060900200043 24.24 12.466 M060900200044 24.57 12.162 M060900200045 25.17 11.858 .74 M060900200046 ENDDATA 31 0 M060900200047 ENDSUBENT 46 0 M060900299999 SUBENT M0609003 20130627 M067M060900300001 BIB 4 10 M060900300002 REACTION (21-SC-45(G,X)1-H-1,,DA,,4PI/BRS) M060900300003 Total photoproton production cross section: M060900300004 the sum of (g,p), (g,np) and 2(g,2p) reactions. M060900300005 COMMENT The 21-Sc-45(g,pn) and 21-Sc-45(g,2p) reaction M060900300006 thresholds are 18.0 MeV and 19.1 MeV M060900300007 correspondingly. M060900300008 An isotopic angular distribution was assumed. M060900300009 SAMPLE Self-supporting metal foil of 100 % 45Sc (3.3 M060900300010 mg/cm**2 thick). M060900300011 HISTORY (20130627A) Corrected by V.Varlamov: BRA -> BRS. M060900300012 ENDBIB 10 0 M060900300013 NOCOMMON 0 0 M060900300014 DATA 3 27 M060900300015 EN DATA DATA-ERR M060900300016 MEV MB MB M060900300017 15. 5.333 M060900300018 15.33 5.754 M060900300019 15.66 5.965 M060900300020 15.99 6.667 M060900300021 16.32 8.421 1. M060900300022 16.65 9.192 M060900300023 16.98 9.509 M060900300024 17.31 9.825 M060900300025 17.64 11.228 M060900300026 17.97 12.947 1. M060900300027 18.3 14.386 M060900300028 18.63 15.895 M060900300029 18.96 18.175 M060900300030 19.29 20.105 M060900300031 19.62 22.386 M060900300032 19.85 23.86 M060900300033 20.28 24.491 M060900300034 20.61 24.561 1.32 M060900300035 20.94 24.281 M060900300036 21.27 24.281 M060900300037 21.6 24.175 M060900300038 21.93 24.246 M060900300039 22.26 24. M060900300040 22.59 22.807 M060900300041 23.25 21.404 M060900300042 23.91 19.929 M060900300043 24.57 18.842 2.97 M060900300044 ENDDATA 29 0 M060900300045 ENDSUBENT 44 0 M060900399999 SUBENT M0609004 20130627 M067M060900400001 BIB 4 10 M060900400002 REACTION (22-TI-46(G,X)1-H-1,,DA,,4PI/BRS) M060900400003 Total photoproton production cross section: M060900400004 the sum of (g,p), (g,np) and 2(g,2p) reactions. M060900400005 COMMENT The 22-Ti-46(g,pn) and 22-Ti-46(g,2p) reaction M060900400006 thresholds are 21.7 MeV and 17.2 MeV M060900400007 correspondingly. M060900400008 An isotopic angular distribution was assumed. M060900400009 SAMPLE Self-supporting metal foil of 81.2 % enriched 46Ti M060900400010 (3.98 mg/cm**2 thick). M060900400011 HISTORY (20130627A) Corrected by V.Varlamov: BRA -> BRS. M060900400012 ENDBIB 10 0 M060900400013 NOCOMMON 0 0 M060900400014 DATA 3 26 M060900400015 EN DATA DATA-ERR M060900400016 MEV MB MB M060900400017 15.33 9.333 M060900400018 15.66 11.067 M060900400019 15.99 12.6 M060900400020 16.32 15.733 1.98 M060900400021 16.65 14.667 M060900400022 16.98 16. M060900400023 17.31 18. M060900400024 17.64 19.333 M060900400025 17.97 22.6 M060900400026 18.3 26.667 1.98 M060900400027 18.63 29.6 M060900400028 18.96 31.933 M060900400029 19.29 33.333 M060900400030 19.62 34.533 M060900400031 19.85 35.933 M060900400032 20.28 36.933 M060900400033 20.61 36.8 M060900400034 20.94 35.4 M060900400035 21.27 32.2 2.38 M060900400036 21.93 27.2 M060900400037 22.26 26.667 M060900400038 22.92 27.333 M060900400039 23.58 26. M060900400040 23.91 26.933 M060900400041 24.24 25.32 M060900400042 25.17 21.333 4.69 M060900400043 ENDDATA 28 0 M060900400044 ENDSUBENT 43 0 M060900499999 ENDENTRY 4 0 M060999999999