ENTRY A0685 20040716 0000A068500000001 SUBENT A0685001 20040716 0000A068500100001 BIB 13 60 A068500100002 TITLE Elastic scattering of 7-Li+28-Si at near-barrier A068500100003 energies A068500100004 REFERENCE (J,PR/C,69,054602,2004) A068500100005 REL-REF (N,A0686002,A.PAKOU+,J,PL/B,556,21,2003) Elastic A068500100006 scattering of 6Li+28Si at near-barrier energies A068500100007 AUTHOR (A.Pakou, N.Alamanos, G.Doukelis, A.Gillibert, A068500100008 G.Kalyva, M.Kokkoris, S.Kossionides, A.Lagoyannis, A068500100009 A.Musumarra, C.Papachristodoulou, N.Patronis, A068500100010 G.Perdikakis, D.Pierroutsakou, E.C.Pollacco, K.Rusek) A068500100011 INSTITUTE (2GRCIOA) Department of physics. University of A068500100012 Ioannina, A068500100013 (2FR SAC) DSM/DAPNIA CEA, Saclay A068500100014 (2GRCGRC) Technical Educational Institute of Athens. A068500100015 (2GRCATH) National Research Center, Demokritos. A068500100016 (2GRCGRC) National Technical University of Athens. A068500100017 (2ITYCAT) Dipartimento di Metodologie Fisiche e A068500100018 Chimiche per l'Ingegneria. A068500100019 (2ITYITY) INFN Sezione di Napoli. A068500100020 (3POLIPJ) Department of Nuclear Reactions. A068500100021 The Andrzej Soltan Institute for Nuclear Studies. A068500100022 SAMPLE A 210- mug/cm2-thick, self-supported natural silicon A068500100023 target, tilted by +/- 45 degree (depending on the A068500100024 detector position). A liquid-nitrogen cold trap close A068500100025 to the target holder reduced the target contamination A068500100026 on carbon to minimum. A068500100027 MONITOR (14-SI-0(3-LI-7,EL)14-SI-0,,DA) The scattering at +/- A068500100028 15 degree, concerning the present bombarding energies, A068500100029 can be considered as being pure Rutherford. A068500100030 DETECTOR (TELES,SIBAR,SIBAR) The DE silicon detector was 10 A068500100031 micrometers thick, while the E detector was 300 A068500100032 micrometers thick measuring the forward-angle A068500100033 scattering, A068500100034 (SIBAR) A thin, 20- or 25- micrometers - thick siliconA068500100035 detector measuring the backward scattering. The choiceA068500100036 of the thickness of the backward detector was such as A068500100037 to allow light particles, like alphas from breakup A068500100038 transfer and other contaminant reactions (7Li+12C), to A068500100039 go through while Li particles stop in the detector. A068500100040 FACILITY (VDGT,2GRCATH) TN11/25 HVEC 5.5 MV A068500100041 METHOD (EXTB) 7Li2+ and 7Li3+ beams. Beam currents were of A068500100042 the order of 30 nA. A068500100043 (EDE) The alpha group was well discriminated in the A068500100044 forward detectors with the DE-E technique. A068500100045 HISTORY (20040708C) A068500100046 (20040708R) Data tables were recieved from A.Pakou A068500100047 (20040716U) Last checking has been done. A068500100048 STATUS (TABLE) From A.Pakou A068500100049 (APRVD) By A.Pakou A068500100050 ADD-RES (THEO,POT) The results were analyzed in a A068500100051 double-folding model by using the BDM3Y1 interaction. A068500100052 Previous data of 6Li+28Si, 6,7Li +138Ba, and A068500100053 6,7Li+208Pb were also considered in the same A068500100054 theoretical framework, in order to draw meaningful A068500100055 comparisons. An anomalous behavior for both the real A068500100056 and imaginary part of the optical potential develops A068500100057 for the weakly bound nuclei 6,7Li in the vicinity of A068500100058 the barrier, which in total contradicts the A068500100059 conventional threshold anomaly applied to stable A068500100060 systems. This behavior may be described only A068500100061 qualitatively by dispersion relations. A068500100062 ENDBIB 60 0 A068500100063 COMMON 1 3 A068500100064 ANG-RSL A068500100065 ADEG A068500100066 1. A068500100067 ENDCOMMON 3 0 A068500100068 ENDSUBENT 67 0 A068500199999 SUBENT A0685002 20040716 0000A068500200001 BIB 2 2 A068500200002 REACTION (14-SI-28(3-LI-7,EL)14-SI-28,,DA,,RTH) A068500200003 ERR-ANALYS (ERR-S) Statistical uncertainty only. A068500200004 ENDBIB 2 0 A068500200005 NOCOMMON 0 0 A068500200006 DATA 4 140 A068500200007 EN ANG-CM DATA-CM ERR-S A068500200008 MEV ADEG NO-DIM NO-DIM A068500200009 8. 33.517 1.01635 0.00236 A068500200010 8. 37.181 0.96808 0.00292 A068500200011 8. 43.244 0.98431 0.00488 A068500200012 8. 49.247 0.97646 0.00616 A068500200013 8. 55.182 1.01361 0.00703 A068500200014 8. 61.041 1.0169 0.01051 A068500200015 8. 66.817 1.02035 0.01455 A068500200016 8. 72.504 1.01957 0.01652 A068500200017 8. 78.096 0.96433 0.0201 A068500200018 8. 83.587 1.04171 0.02703 A068500200019 8. 88.974 0.95661 0.03 A068500200020 8. 99.421 0.9647 0.0372 A068500200021 8. 104.478 1.01133 0.04172 A068500200022 8. 109.421 0.97888 0.04085 A068500200023 8. 114.253 0.90701 0.03931 A068500200024 8. 118.974 0.93027 0.04459 A068500200025 8. 123.587 0.83452 0.04236 A068500200026 8. 128.096 0.84127 0.0397 A068500200027 8. 132.504 0.78704 0.04673 A068500200028 8. 132.504 0.8298 0.06013 A068500200029 8. 136.817 0.80504 0.0393 A068500200030 8. 141.041 0.80018 0.04915 A068500200031 8. 145.182 0.79208 0.03316 A068500200032 8.5 31.065 1.02238 0.00456 A068500200033 8.5 37.181 0.99188 0.0092 A068500200034 8.5 49.247 1.02022 0.02598 A068500200035 8.5 61.041 0.99343 0.04103 A068500200036 8.5 66.817 1.05061 0.04612 A068500200037 8.5 72.504 1.06384 0.0575 A068500200038 8.5 83.587 0.9222 0.05675 A068500200039 8.5 94.253 0.9686 0.05379 A068500200040 8.5 104.478 0.82916 0.03279 A068500200041 8.5 114.253 0.87042 0.04592 A068500200042 8.5 118.974 0.77396 0.04807 A068500200043 8.5 123.587 0.76168 0.0551 A068500200044 8.5 132.504 0.81389 0.06496 A068500200045 8.5 141.041 0.72677 0.03834 A068500200046 8.5 145.18201 0.56736 0.02229 A068500200047 9. 33.517 0.98526 0.00278 A068500200048 9. 37.181 0.98306 0.00337 A068500200049 9. 43.244 0.99296 0.00405 A068500200050 9. 46.854 1.01454 0.00389 A068500200051 9. 49.247 0.98656 0.00528 A068500200052 9. 50.44 1.01311 0.00432 A068500200053 9. 54.001 1.00514 0.00503 A068500200054 9. 55.182 1.03304 0.00654 A068500200055 9. 57.535 0.96991 0.0062 A068500200056 9. 61.041 0.98559 0.0089 A068500200057 9. 66.817 0.98806 0.01296 A068500200058 9. 72.504 0.99443 0.01635 A068500200059 9. 78.096 0.88687 0.01855 A068500200060 9. 83.587 0.94414 0.02329 A068500200061 9. 88.974 0.86035 0.02536 A068500200062 9. 94.253 0.8008 0.02533 A068500200063 9. 99.421 0.78624 0.03881 A068500200064 9. 104.478 0.72498 0.03011 A068500200065 9. 109.421 0.69743 0.03328 A068500200066 9. 114.253 0.66999 0.03281 A068500200067 9. 118.974 0.62021 0.03218 A068500200068 9. 123.587 0.67222 0.03241 A068500200069 9. 128.096 0.60073 0.02888 A068500200070 9. 132.504 0.54753 0.02488 A068500200071 9. 136.817 0.53692 0.02583 A068500200072 9. 141.041 0.4794 0.02792 A068500200073 9. 145.182 0.51368 0.03436 A068500200074 10. 24.905 1.0347 0.05578 A068500200075 10. 31.065 0.99431 0.00799 A068500200076 10. 37.181 1.04098 0.0088 A068500200077 10. 49.247 1.02184 0.01323 A068500200078 10. 55.182 0.97171 0.0236 A068500200079 10. 61.041 0.92807 0.03157 A068500200080 10. 72.504 0.79482 0.03433 A068500200081 10. 83.587 0.60779 0.03725 A068500200082 10. 94.253 0.508 0.03643 A068500200083 10. 94.253 0.50861 0.0139 A068500200084 10. 104.478 0.45605 0.03911 A068500200085 10. 114.253 0.43051 0.04085 A068500200086 10. 123.587 0.33181 0.04338 A068500200087 10. 128.096 0.27407 0.03068 A068500200088 10. 132.504 0.25975 0.01981 A068500200089 10. 141.041 0.28991 0.03061 A068500200090 10. 145.182 0.19629 0.03326 A068500200091 11. 28.606 0.97453 0.02615 A068500200092 11. 32.292 1.02932 0.05234 A068500200093 11. 35.962 1.06915 0.03652 A068500200094 11. 39.613 1.03643 0.02712 A068500200095 11. 43.244 1.0514 0.03548 A068500200096 11. 49.247 0.91386 0.03476 A068500200097 11. 55.182 0.80448 0.02342 A068500200098 11. 61.041 0.73104 0.01236 A068500200099 11. 72.504 0.55372 0.02209 A068500200100 11. 83.587 0.4072 0.02064 A068500200101 11. 94.253 0.3421 0.03013 A068500200102 11. 94.253 0.34285 0.00886 A068500200103 11. 104.478 0.26735 0.00945 A068500200104 11. 114.253 0.21344 0.0133 A068500200105 11. 123.587 0.17791 0.00941 A068500200106 13. 18.71 0.984 0.03515 A068500200107 13. 21.192 1.07052 0.023 A068500200108 13. 22.431 1.02744 0.05447 A068500200109 13. 23.669 1.10564 0.03205 A068500200110 13. 26.14 1.07194 0.05056 A068500200111 13. 29.836 1.01887 0.05254 A068500200112 13. 31.065 1.02775 0.04472 A068500200113 13. 33.517 1.022 0.04304 A068500200114 13. 37.181 0.98508 0.02466 A068500200115 13. 39.613 0.9299 0.0272 A068500200116 13. 43.244 0.81728 0.02779 A068500200117 13. 49.247 0.65884 0.02767 A068500200118 13. 55.182 0.52713 0.00702 A068500200119 13. 61.041 0.50302 0.0235 A068500200120 13. 66.817 0.40808 0.00985 A068500200121 13. 72.504 0.31349 0.0298 A068500200122 13. 78.096 0.24021 0.01085 A068500200123 13. 83.587 0.20768 0.01214 A068500200124 13. 88.974 0.17023 0.00911 A068500200125 13. 94.253 0.12711 0.00734 A068500200126 13. 99.421 0.12844 0.01835 A068500200127 13. 104.478 0.09744 0.00753 A068500200128 13. 109.421 0.10554 0.01212 A068500200129 13. 114.253 0.08571 0.00909 A068500200130 13. 118.974 0.07678 0.00549 A068500200131 13. 123.587 0.07037 0.01263 A068500200132 13. 128.09599 0.0621 0.01183 A068500200133 15. 12.488 0.9355 0.03062 A068500200134 15. 18.71 1.10368 0.04206 A068500200135 15. 26.14 1.08497 0.03774 A068500200136 15. 29.836 0.98254 0.03935 A068500200137 15. 33.517 0.81227 0.02348 A068500200138 15. 37.181 0.70206 0.01521 A068500200139 15. 43.244 0.59911 0.01716 A068500200140 15. 49.247 0.40799 0.01378 A068500200141 15. 61.041 0.23883 0.01271 A068500200142 15. 72.504 0.13164 0.01355 A068500200143 16. 18.71 1.1308 0.0495 A068500200144 16. 24.905 1.00061 0.05071 A068500200145 16. 37.181 0.56532 0.04656 A068500200146 16. 49.247 0.36825 0.01908 A068500200147 16. 61.041 0.1697 0.01011 A068500200148 16. 72.504 0.0939 0.0089 A068500200149 ENDDATA 142 0 A068500200150 ENDSUBENT 149 0 A068500299999 ENDENTRY 2 0 A068599999999