ENTRY C2584 20201123 C200C2584 0 1 SUBENT C2584001 20201123 C200C2584 1 1 BIB 10 46 C2584 1 2 TITLE First direct measurement of 22Mg(alpha,p)25Al and C2584 1 3 implications for X-ray burst model-observation C2584 1 4 comparisons C2584 1 5 AUTHOR (J.S.Randhawa,Y.Ayyad,W.Mittig,Z.Meisel,T.Ahn, C2584 1 6 S.Aguilar,H.Alvarez-Pol,D.W.Bardayan,D.Bazin, C2584 1 7 S.Beceiro-Novo,D.Blankstein,L.Carpenter,M.Cortesi, C2584 1 8 D.Cortina-Gil,P.Gastis,M.Hall,S.Henderson,J.J.Kolata, C2584 1 9 T.Mijatovic,F.Ndayisabye,P.O'Malley,J.Pereira, C2584 1 10 A.Pierre,H.Robert,C.Santamaria,H.Schatz,J.Smith, C2584 1 11 N.Watwood,J.C.Zamora) C2584 1 12 INSTITUTE (1USAMSU,1USAOHO,1USANOT,2SPNSAU,3CRORBZ,1USABRK, C2584 1 13 3BZLUSP) C2584 1 14 (1USAUSA) Central Michigan University, Mount Pleasant C2584 1 15 REFERENCE (J,PRL,125,202701,2020) C2584 1 16 FACILITY (CYCTM,1USAMSU) Experiment was carried out using C2584 1 17 coupled cyclotrons at the NSCL East Lansing. This C2584 1 18 facility served to produce 22Mg ions. C2584 1 19 (LINAC,1USAMSU) 22Mg ions were injected into the ReA3 C2584 1 20 reaccelerator and accelerated to 5 MeV/u C2584 1 21 SAMPLE Sample was an Active-Target time projection chamber C2584 1 22 (TPC) filled with mixture of 95% He and 5% CO2 at C2584 1 23 the pressure of 600 torr. The active volume of the C2584 1 24 TPC is cylinder of length 1 m and of a radius 29.2 cm. C2584 1 25 DETECTOR The time projection chamber was at the same time He C2584 1 26 target as well as the detector of reaction products. C2584 1 27 Cylindrical TPC is placed in uniform magnetic field C2584 1 28 of 1.9T produced by solenoidal magnet. The sensor C2584 1 29 plane consisted of approx. 10000 equilateral triangle C2584 1 30 pads which provided x-y information of the particle C2584 1 31 track. Drift time of the electrons provided C2584 1 32 longitudinal z component of the track. C2584 1 33 (IOCH) A thin ionization chamber placed in front of th C2584 1 34 TPC, filled with isobutane at 10 torr was used to C2584 1 35 record the beam intensity aand identified the beam C2584 1 36 contaminants. Signal from ionization chamber was used C2584 1 37 also for time reference of the TPC signals. C2584 1 38 METHOD Inverse kinematics was used. C2584 1 39 INC-SOURCE 22Mg was produced from the fragmentation of a 24Mg C2584 1 40 primary beam accelerated by the coupled cyclotrons C2584 1 41 and selected by the A1900 fragment separator. The C2584 1 42 22Mg fragments were stopped in gas cell and C2584 1 43 transported to electron beam ion source. The ions C2584 1 44 from ion source were injected to ReA3 reaccelerator C2584 1 45 and accelerated to cca 5 MeV/A with average beam C2584 1 46 intensity of 900 pps. C2584 1 47 HISTORY (20201123C) Compiled by S.H. C2584 1 48 ENDBIB 46 0 C2584 1 49 NOCOMMON 0 0 C2584 1 50 ENDSUBENT 49 0 C2584 199999 SUBENT C2584002 20201123 C200C2584 2 1 BIB 3 5 C2584 2 2 REACTION (12-MG-22(A,P)13-AL-25,,SIG) C2584 2 3 ERR-ANALYS (ERR-S) Statistical uncertainty C2584 2 4 (ERR-SYS) Systematic uncertainty C2584 2 5 (ERR-T) Total uncertaity C2584 2 6 STATUS (TABLE) Data taken from tab. 1 of the reference C2584 2 7 ENDBIB 5 0 C2584 2 8 NOCOMMON 0 0 C2584 2 9 DATA 11 5 C2584 2 10 EN DATA ERR-T +ERR-T -ERR-T ERR-SYS C2584 2 11 +ERR-SYS -ERR-SYS ERR-S +ERR-S -ERR-S C2584 2 12 MEV MB MB MB MB MB C2584 2 13 MB MB MB MB MB C2584 2 14 3.2 2.5 2.3 1.8 C2584 2 15 0.9 0.9 2.1 1.6 C2584 2 16 4.8 26. 12. 11.C2584 2 17 6. C2584 2 18 6.6 64. 27. 25.C2584 2 19 10. C2584 2 20 8.6 69. 29. 26.C2584 2 21 11. C2584 2 22 10.6 80. 33. 31.C2584 2 23 12. C2584 2 24 ENDDATA 14 0 C2584 2 25 ENDSUBENT 24 0 C2584 299999 ENDENTRY 2 0 C258499999999