ENTRY A0707 20070528 A062A070700000001 SUBENT A0707001 20070528 A062A070700100001 BIB 14 65 A070700100002 TITLE Investigation of scattering between mirror nuclei 7-BeA070700100003 and 7-Li. A070700100004 AUTHOR (S.Barua, J.J.Das, A.Jhingan, N.Madhavan, T.Varughese,A070700100005 P.Sugathan, K.Kalita, S.Verma, B.Bhattacharjee, A070700100006 S.K.Datta, K.Boruah) A070700100007 INSTITUTE (3INDIND) Department of physics, Gauhati university. A070700100008 (3INDNSD) Nuclear science center. A070700100009 (3INDDLH) Department of physics and astrophysics A070700100010 REFERENCE (J,PR/C,72,044602,2005) A070700100011 (J,NP/A,746,467,2004) Preliminary results. A070700100012 REL-REF (R,,J.J.DAS+,J,JP/G,24,1371,1998) The radioactive ion A070700100013 beam facility at the Nuclear Science Center. A070700100014 (R,,A.K.SINHA+,J,NIM/A,339,543,1994) Hira-spectrometer.A070700100015 METHOD (EXTB) The intensity of the 7-Be beam was 10000 A070700100016 particles/seconds. The purity of the beam was 99%. A070700100017 (EDE) The scattering events were detected in a compactA070700100018 and efficient delta-E(gas)-E(Si) telescope detector A070700100019 system. All details see in detector and original A070700100020 paper. A070700100021 SAMPLE The 7-Li target was prepared by evaporation of 7-Li A070700100022 material (99.9% pure) on a thin (10 mug/cm2) carbon A070700100023 backing. Special care was taken in preparing the A070700100024 target as 7-Li is highly hygroscopic. A070700100025 PART-DET (3-LI-7) A070700100026 (4-BE-7) A070700100027 DETECTOR (PS,SIBAR) The detector system consisted of two A070700100028 identical position-sensitive Si annular detectors. A070700100029 The front side of the annular detector had 16 rings A070700100030 divided into four quadrants, which gave position A070700100031 (angular) information. A070700100032 The back side of the annular detector was divided intoA070700100033 16 sectors, which provided energy information. A070700100034 The first detector was placed near the target, at a A070700100035 distance of 17mm (from the target). A070700100036 The other one was placed behind a gas ionization A070700100037 chamber, at a distance of 66 mm from the target. A070700100038 (TELES,SI,SI) A pair of deltae-E (Si) detectors was A070700100039 mounted in the production chamber to monitor recoil A070700100040 protons. A070700100041 FACILITY (VDGT,3INDNSD) A070700100042 (SPECM,3INDNSD) The 7-Be beam of energy 20.25 MeV was A070700100043 separated at 0 degree using the recoil mass A070700100044 spectrometer HIRA (Heavy Ion Reaction Analyzer) A070700100045 INC-SOURCE (P-LI7) A 25.0-MeV, pulsed 7-Li beam from a 15ud- A070700100046 pelletron was made to interact with polypropylene foilA070700100047 to produce a 7-Be beam through the inverse kinematic A070700100048 reaction P(7Li,7Be)N. A070700100049 HISTORY (20060810C) A070700100050 (20070528U) Last checking has been done. A070700100051 ERR-ANALYS (EN-ERR) The intrinsic energy spread caused by the A070700100052 energy straggling in the production target. A070700100053 (ANG-ERR) The intrinsic angular spread of the beam. A070700100054 (ERR-1) The uncertainty in target thickness. A070700100055 (ERR-2) The uncertainty in beam current determination. A070700100056 (ERR-3) The uncertainty in solid angle determination. A070700100057 (ERR-T) The total uncertainty, but this may be more A070700100058 because of the uncertainty in energy and angle. A070700100059 ADD-RES (COMP) A070700100060 1. With isospin-dependent and isospin-independent A070700100061 optical model potentials. A070700100062 2. Isospin coupled and isospin noncoupled theoretical A070700100063 fits. A070700100064 3. The charge-exchange contribution in the isospin A070700100065 coupled analysis. A070700100066 (POT) A070700100067 ENDBIB 65 0 A070700100068 COMMON 6 3 A070700100069 EN-ERR ANG-ERR ERR-1 ERR-2 ERR-3 ERR-T A070700100070 MEV ADEG PER-CENT PER-CENT PER-CENT PER-CENT A070700100071 0.5 1. 4. 4. 8. 16.A070700100072 ENDCOMMON 3 0 A070700100073 ENDSUBENT 72 0 A070700199999 SUBENT A0707002 20070528 A062A070700200001 BIB 3 4 A070700200002 REACTION (3-LI-7(4-BE-7,EL)3-LI-7,,DA,,RTH) Figure 4 A070700200003 STATUS (CURVE) By CAJAD. A070700200004 ERR-ANALYS (ANG-ERR-D) Data point reader uncertainty. A070700200005 (DATA-ERR) The uncertainty is shown on figure 4. A070700200006 ENDBIB 4 0 A070700200007 COMMON 1 3 A070700200008 ANG-ERR-D A070700200009 ADEG A070700200010 0.8 A070700200011 ENDCOMMON 3 0 A070700200012 DATA 4 28 A070700200013 EN-CM ANG-CM DATA-CM DATA-ERR A070700200014 MEV ADEG NO-DIM NO-DIM A070700200015 8.87 41.9 0.03 0.09 A070700200016 8.87 45.8 0.19 0.11 A070700200017 8.87 50.2 0.45 0.13 A070700200018 8.87 54.6 0.13 0.27 A070700200019 8.87 57.9 0. 0.4 A070700200020 8.87 61.8 0.1 0.5 A070700200021 8.87 65.6 0.1 0.5 A070700200022 8.87 114.7 0.6 0.3 A070700200023 8.87 118.6 0.8 0.4 A070700200024 8.87 121.9 0.9 0.4 A070700200025 8.87 126.8 0.8 0.5 A070700200026 8.87 130.1 0.8 0.5 A070700200027 8.87 134.6 1.2 0.5 A070700200028 8.87 138.4 1.4 0.5 A070700200029 9.87 42.2 0.16 0.29 A070700200030 9.87 46. 0.16 0.18 A070700200031 9.87 49.8 0.16 0.15 A070700200032 9.87 54.2 0.28 0.13 A070700200033 9.87 58.1 0.34 0.2 A070700200034 9.87 61.9 0.34 0.2 A070700200035 9.87 65.7 0.2 0.4 A070700200036 9.87 113.4 0.71 0.29 A070700200037 9.87 118.3 1.19 0.26 A070700200038 9.87 122.1 1.8 0.26 A070700200039 9.87 126. 1.07 0.26 A070700200040 9.87 130.4 1.32 0.26 A070700200041 9.87 133.1 1. 0.3 A070700200042 9.87 138.6 1.93 0.23 A070700200043 ENDDATA 30 0 A070700200044 ENDSUBENT 43 0 A070700299999 ENDENTRY 2 0 A070799999999