ENTRY            O1399   20090312                             O038O139900000001 
SUBENT        O1399001   20090312                             O038O139900100001 
BIB                 14         64                                 O139900100002 
TITLE      Activation measurement of the He-3(He4,g)Be-7 cross    O139900100003 
           section at low energy.                                 O139900100004 
AUTHOR     (D.Bemmerer, F.Confortola, H.Costantini, A.Formicola,  O139900100005 
           Gy.Gyurky, R.Bonetti, C.Broggini, P.Corvisiero,        O139900100006 
           Z.Elekes, Zs.Fulop, G.Gervino, A.Guglielmetti,         O139900100007 
           C.Gustavino, G.Imbriani, M.Junker, M.Laubenstein,      O139900100008 
           A.Lemut, B.Limata, V.Lozza, M.Marta, R.Menegazzo,      O139900100009 
           P.Prati,  V.Roca, C.Rolfs, C.Rossi-Alvarez, E.Somorjai,O139900100010 
           O.Straniero, F.Strieder, F.Terrasi, H.P.Trautvetter)   O139900100011 
INSTITUTE  (2ITYPAD)                                              O139900100012 
           (2ITYGVA)                                              O139900100013 
           (2ITYLGS)                                              O139900100014 
           (3HUNDEB)                                              O139900100015 
           (2ITYMIL)                                              O139900100016 
           (2ITYTUR)                                              O139900100017 
           (2ITYNAP)                                              O139900100018 
           (2GERBOC)                                              O139900100019 
           (2ITYOAC)                                              O139900100020 
           (2ITYFSN)                                              O139900100021 
REFERENCE  (J,PRL,97,122502,2006)                                 O139900100022 
           (J,NP/A,814,144,2008) O1709                            O139900100023 
           (J,PR/C,75,065803,2007) O1516                          O139900100024 
REL-REF    (N,O1195001,G.IMBRIANI+,J,EPJ/A,25,455,2005) Results   O139900100025 
            of LUNA group.                                        O139900100026 
           (N,O1268001,B.N.SINGH+,J,PRL,93,262503,2004) Results   O139900100027 
           of He-3(a,g)Be-7 reaction at GSPEC-method.             O139900100028 
SAMPLE     Enriched He-3 gas, isotopic purity more than 99.95%,   O139900100029 
           pressure 0.7-mbar, target thickness 9-10 keV, was used.O139900100030 
DETECTOR   (SOLST) A 100-mum thick silicon detector detects       O139900100031 
           projectiles that have been elastically scattered first O139900100032 
           in the target gas and subsequently in a movable 15-    O139900100033 
           mug/cm**2 carbon foil.                                 O139900100034 
           (HPGE) The number of Be-7 nuclei is determined by      O139900100035 
           measuring the Be-7 activity on a Cu-catcher.           O139900100036 
FACILITY   (ACCEL,2ITYLGS) The 400 kV LUNA accelerator.           O139900100037 
           The beam energy is obtained from a precision resistor  O139900100038 
           chain and have 5 eV/hour long-term stability.          O139900100039 
METHOD     (ACTIV)                                                O139900100040 
COMMENT    *By authors*.The present data are the first activation O139900100041 
           results at energies directly relevant to Big-Bang      O139900100042 
           Li-7 production.                                       O139900100043 
ERR-ANALYS (ERR-1).The error in Be-7 counting efficiency is 1.8%. O139900100044 
           (ERR-2).The error in beam intensity is 1.5%.           O139900100045 
           (ERR-3).The error in beam heating effect is 1.3%.      O139900100046 
           (ERR-4).The error in target pressure and temperature   O139900100047 
            without beam is 0.6%.                                 O139900100048 
           (ERR-5).The error in Be-7 backscattering is 0.5%.      O139900100049 
           (ERR-6).The error in incomplete Be-7 collection is     O139900100050 
            0.4%.                                                 O139900100051 
           (ERR-7).The error in Be-7 distribution in catcher is   O139900100052 
            0.4%.                                                 O139900100053 
           (ERR-8).The error in 478-keV gamma-ray branching is    O139900100054 
            0.4%.                                                 O139900100055 
           (EN-ERR,0.5,0.8).The error in effective energy is      O139900100056 
            0.5-0.8%.                                             O139900100057 
           (ERR-SYS).The total systematics errors is 3%. See      O139900100058 
            above.                                                O139900100059 
           (ERR-S).The errors due to statistics-activity          O139900100060 
           measurements.                                          O139900100061 
MONITOR    (13-AL-27(P,G)14-SI-28,,SIG) Catcher Al for back-      O139900100062 
            scattered Be-7.                                       O139900100063 
HISTORY    (20070123C)                                            O139900100064 
           (20090312A) New referene was added.                    O139900100065 
STATUS     (TABLE)                                                O139900100066 
ENDBIB              64          0                                 O139900100067 
COMMON               8          6                                 O139900100068 
ERR-1      ERR-2      ERR-3      ERR-4      ERR-5      ERR-6      O139900100069 
ERR-7      ERR-8                                                  O139900100070 
PER-CENT   PER-CENT   PER-CENT   PER-CENT   PER-CENT   PER-CENT   O139900100071 
PER-CENT   PER-CENT                                               O139900100072 
        1.8        1.5        1.3        0.6        0.5        0.4O139900100073 
        0.4        0.4                                            O139900100074 
ENDCOMMON            6          0                                 O139900100075 
ENDSUBENT           74          0                                 O139900199999 
SUBENT        O1399002   20090312                             O038O139900200001 
BIB                  3          6                                 O139900200002 
REACTION  1(2-HE-3(A,G)4-BE-7,,SIG,,SFC)                          O139900200003 
          2(2-HE-3(A,G)4-BE-7,,SIG,,,DERIV)                       O139900200004 
COMMENT    *By authors*.The effective center mass energy is       O139900200005 
           calculated assuming a constant S-factor over the targetO139900200006 
           length.                                                O139900200007 
STATUS     (SPSDD,O1709002)                                       O139900200008 
ENDBIB               6          0                                 O139900200009 
NOCOMMON             0          0                                 O139900200010 
DATA                 5          3                                 O139900200011 
EN-CM      DATA      1ERR-S     1ERR-SYS   1DATA      2           O139900200012 
KEV        B*KEV      PER-CENT   PER-CENT   MB                    O139900200013 
      126.5      0.514         2.         3.   1.87E-06           O139900200014 
      147.7      0.499        1.7        2.9   4.61E-06           O139900200015 
      168.9      0.482         2.        2.9   9.35E-06           O139900200016 
ENDDATA              5          0                                 O139900200017 
ENDSUBENT           16          0                                 O139900299999 
ENDENTRY             2          0                                 O139999999999