ENTRY M0546 20081110 M047M054600000001
SUBENT M0546001 20081110 M047M054600100001
BIB 13 40 M054600100002
INSTITUTE (2FR SAC,2ITYPAV,2GERMNZ,2GERTUE,4RUSJIA,2GERGOE) M054600100003
REFERENCE (J,PR/C,55,1033,199703) M054600100004
AUTHOR (M.MACCORMICK,J.HABERMANN,J.AHRENS,G.AUDIT,R.BECK, M054600100005
A.BRAGHIERI,G.GALLER,N.D'HOSE,V.ISBERT,P.PEDRONI, M054600100006
T.PINELLI,G.TAMAS,S.WARTENBERG,A.ZABRODIN) M054600100007
TITLE Total photoabsorption cross section for 4He from M054600100008
200 to 800 MeV. M054600100009
FACILITY (MICRT,2GERMNZ) M054600100010
INC-SOURCE (TAGD) Glasgow tagged photon facility at the MAMI M054600100011
continuous wave accelerator of Mainz. M054600100012
SAMPLE The liquid 4he target at 4.25 k and 1050 mbar M054600100013
contained in a mylar cylinder of dimensions 4.3 cm M054600100014
in diameter by 27.5 cm in length. M054600100015
DETECTOR (TELES,MWPC,SCIN) 3.7 PI acceptance detector M054600100016
DAPHNE: a central tracking detector, consisting of M054600100017
three coaxial cylindrical multiwire proportional M054600100018
chambers, surrounded by a segmented cylindrical M054600100019
scintillator ede telescope for charged particle M054600100020
identification and a scintillator-absorber M054600100021
sandwich. M054600100022
METHOD (COINC,EDE) M054600100023
ERR-ANALYS (ERR-S) Statistical errors. M054600100024
(ERR-1) Systematic errors. M054600100025
COMMENT The total photoabsorption cross section for 4He M054600100026
has been measured for the first time over a wide M054600100027
photon energy range (200 - 800 MeV). By using the M054600100028
large acceptance detector DAPHNE at the tagged M054600100029
photon facility of the mami microtron in Mianz M054600100030
high precision results with small systematic M054600100031
errors were obtained. This measurement shows that M054600100032
4He has a behavior similar to heavy nuclei and, M054600100033
in particular, a reduction of the cross section M054600100034
with respect to the lighter nuclei is found for M054600100035
Eg > 600 MeV. M054600100036
STATUS (TABLE) Data from the Table 1. M054600100037
Data were compiled at the USA BNL NNDC by M054600100038
V.V.Varlamov. M054600100039
HISTORY (19990226C) M054600100040
(20081110A) Corrected by V.Varlamov: ENTRY N2 M054600100041
shifted, lowercase. M054600100042
ENDBIB 40 0 M054600100043
NOCOMMON 0 0 M054600100044
ENDSUBENT 43 0 M054600199999
SUBENT M0546002 19990226 0000M054600200001
BIB 1 1 M054600200002
REACTION (2-HE-4(G,ABS),,SIG) M054600200003
ENDBIB 1 0 M054600200004
NOCOMMON 0 0 M054600200005
DATA 4 56 M054600200006
EN DATA ERR-S ERR-1 M054600200007
MEV MICRO-B MICRO-B MICRO-B M054600200008
204. 722. 2. 23. M054600200009
216. 879. 3. 25. M054600200010
228. 1010. 3. 27. M054600200011
240. 1139. 3. 30. M054600200012
252. 1263. 3. 32. M054600200013
264. 1374. 4. 35. M054600200014
276. 1461. 4. 37. M054600200015
288. 1543. 4. 39. M054600200016
300. 1583. 4. 40. M054600200017
312. 1620. 4. 41. M054600200018
324. 1610. 4. 41. M054600200019
336. 1610. 4. 41. M054600200020
348. 1563. 4. 39. M054600200021
360. 1521. 4. 38. M054600200022
371. 1462. 4. 37. M054600200023
383. 1410. 4. 36. M054600200024
407. 1269. 4. 32. M054600200025
419. 1194. 4. 31. M054600200026
430. 1154. 4. 30. M054600200027
442. 1095. 4. 28. M054600200028
453. 1064. 4. 28. M054600200029
465. 1013. 4. 27. M054600200030
476. 995. 4. 26. M054600200031
488. 950. 4. 25. M054600200032
499. 949. 4. 25. M054600200033
510. 920. 4. 25. M054600200034
521. 905. 4. 25. M054600200035
532. 901. 4. 25. M054600200036
543. 897. 5. 25. M054600200037
554. 865. 4. 24. M054600200038
564. 862. 5. 25. M054600200039
575. 852. 5. 24. M054600200040
585. 847. 5. 25. M054600200041
595. 870. 5. 25. M054600200042
605. 855. 5. 25. M054600200043
615. 839. 5. 25. M054600200044
625. 859. 5. 26. M054600200045
635. 855. 5. 26. M054600200046
644. 851. 5. 26. M054600200047
654. 842. 5. 26. M054600200048
663. 836. 5. 26. M054600200049
672. 831. 5. 26. M054600200050
681. 839. 5. 26. M054600200051
690. 834. 5. 26. M054600200052
699. 823. 5. 26. M054600200053
707. 814. 5. 26. M054600200054
715. 824. 5. 27. M054600200055
723. 823. 5. 27. M054600200056
731. 814. 5. 27. M054600200057
739. 795. 5. 26. M054600200058
747. 789. 5. 26. M054600200059
756. 775. 5. 26. M054600200060
765. 778. 5. 26. M054600200061
774. 737. 5. 25. M054600200062
782. 751. 5. 25. M054600200063
789. 756. 6. 25. M054600200064
ENDDATA 58 0 M054600200065
ENDSUBENT 64 0 M054600299999
ENDENTRY 2 0 M054699999999