ENTRY A0341 20020627 0000A034100000001 SUBENT A0341001 20020627 0000A034100100001 BIB 11 41 A034100100002 TITLE A New Measurement of the El Amplitude in A034100100003 12C(ALPHA,GAMMA0)160 A034100100004 REFERENCE (J,NP/A,688,254,2001) A034100100005 AUTHOR (L.GIALANELLA, M.ALIOTTA, D.ROGALLA, C.ROIFS, A034100100006 F.SCHUMANN, F.STRIEDER, S.THEIS, H.P.TRAUTVETTER, A034100100007 L.CAMPAJOLA, G.IMBRIANI, V.ROCA, M.ROMANO, A.D'ONOFRIO,A034100100008 C.SABBARESE, F.TERRASI, C.AGODI, R.ALBA, A.DEL ZOPPO, A034100100009 P.FIGUERA, P.SAPIENZA, C.SPITALERI, G.GYURKY, A034100100010 E.SOMORJAI, U.GREIFE) A034100100011 INSTITUTE (2GERBOC) Institut Fur Expsrimentalphysik Iii A034100100012 (2ITYNAP) Dipartimento Di Scienze Fisiche A034100100013 Dell'Universita Di Napoli "Federico Ii", Napoli and A034100100014 Sezione Infn Di Napoli. A034100100015 Dipartimento Di Scienze Ambiehtali Della Seconda A034100100016 Universita Di Napoli. A034100100017 (2ITYLNS) Laboratori Nazionali Del Sud A034100100018 (3HUNDEB) Atomki A034100100019 (1USACSM) Colorado School of Mines A034100100020 COMMENT - Abstract: the E1 Amplitude of the Transition to the A034100100021 Ground State in the 12C(A,GAMMA)16O Capture Reaction A034100100022 Was Measured in the Energy Range E-Cm=1.3 to 3.0 MeV A034100100023 Using an Intense 12-C Beam in Combination with a A034100100024 Windowless 4-He Gas Target and an Array of Six 70% HpgeA034100100025 Detectors. The Detectors were Placed in a Ring-ShapedA034100100026 Geometry Around the Target, at a Distance of 17 Cm on aA034100100027 Plane Perpendicular to the Beam Axis. A Target LengthA034100100028 Of 5.3 Cm was Defined by a 12.5 Cm Thick Lead A034100100029 Shielding. Passive and Active Shielding was Used to A034100100030 Achieve the Necessary Suppression of the Beam Induced A034100100031 And Cosmic Background. The Results of this MeasurementA034100100032 And Their Extrapolation to the Relevant Energy During A034100100033 The Helium Burning Phase in Massive Stars are Reported.A034100100034 SAMPLE Helium Gas Target A034100100035 DETECTOR (HPGE) A034100100036 FACILITY (DYNAM,2GERBOC) A034100100037 METHOD (SITA) A034100100038 (BCINT) A034100100039 (GSPEC) A034100100040 STATUS (CURVE) By CAJAD from Figure 2. A034100100041 HISTORY (20020613C) A034100100042 (20020627U) Last checking has been done. A034100100043 ENDBIB 41 0 A034100100044 NOCOMMON 0 0 A034100100045 ENDSUBENT 44 0 A034100199999 SUBENT A0341002 20020627 0000A034100200001 BIB 4 8 A034100200002 REACTION (2-HE-4(6-C-12,G)8-O-16,EP,SIG,,SFC) A034100200003 It is Reaction of Direct Capture A034100200004 ERR-ANALYS (EN-ERR) Data Point Reader Uncertainty A034100200005 (ERR-T) The Uncertainties are Shown on Figure Without A034100200006 Any Analysis. A034100200007 MISC-COL (MISC) The Sum of Kinetic Energies of Projectile and A034100200008 Target in C-M System. A034100200009 EN-SEC (E-LVL-FIN,8-O-16) A034100200010 ENDBIB 8 0 A034100200011 COMMON 2 3 A034100200012 EN-ERR E-LVL-FIN A034100200013 MEV MEV A034100200014 4.E-02 0. A034100200015 ENDCOMMON 3 0 A034100200016 DATA 4 19 A034100200017 EN DATA ERR-T MISC A034100200018 MEV B*KEV PER-CENT MEV A034100200019 5.29 22. 23. 1.323 A034100200020 5.95 27. 19. 1.488 A034100200021 7.39 26. 12. 1.848 A034100200022 7.75 29. 21. 1.938 A034100200023 8.2 36. 19. 2.05 A034100200024 8.92 59. 15. 2.23 A034100200025 8.99 71. 8. 2.248 A034100200026 9.14 71. 17. 2.285 A034100200027 9.44 82. 11. 2.36 A034100200028 9.55 84. 5. 2.388 A034100200029 9.61 79. 8. 2.403 A034100200030 9.62 67. 10. 2.405 A034100200031 10.05 39. 40. 2.513 A034100200032 10.11 38. 11. 2.528 A034100200033 10.22 19. 30. 2.555 A034100200034 10.38 21. 19. 2.595 A034100200035 11.18 4.4 11. 2.795 A034100200036 11.79 2.4 17. 2.948 A034100200037 11.98 1.42 15. 2.995 A034100200038 ENDDATA 21 0 A034100200039 ENDSUBENT 38 0 A034100299999 ENDENTRY 2 0 A034199999999