ENTRY 22983 20180831 22702298300000001 SUBENT 22983001 20180831 22702298300100001 BIB 14 100 2298300100002 TITLE .Differential cross section and analyzing power 2298300100003 measurement for n,d elastic scattering at 248 MeV. 2298300100004 AUTHOR (Y.Maeda, H.Sakai, K.Fujita, M.B.Greenfield,K.Hatanaka,2298300100005 M.Hatano, J.Kamiya, T.Kawabata, H.Kuboki, H.Okamura, 2298300100006 J.Rapaport, T.Saito, Y.Sakemi, M.Sasano, K.Sekiguchi, 2298300100007 Y.Shimizu, K.Suda, Y.Tameshige, A.Tamii, T.Wasaka, 2298300100008 K.Yako, J.Blomgren, P.Mermod, A.Oehrn, M.Oesterlund, 2298300100009 H.Witala, A.Deltuva, A.C.Fonseca, P.U.Sauer, 2298300100010 W.Gloeckle, J.Golak, H.Kamada, A.Nogga, R.Skibinski, 2298300100011 S.Sakoda, H.Kato, N.Uchigashima, D.Hirooka, Y.Kitamura,2298300100012 N.Sakamoto, T.Ikeda, K.Itoh, Y.Sato) 2298300100013 COMMENT .Authors after R,Skibinski - from the 2nd reference 2298300100014 REFERENCE (J,PR/C,76,014004,2007) Main reference, data tables 2298300100015 are given 2298300100016 (J,NP/A,790,430C,2007) Graphs. 2298300100017 (J,MPL/A,18,298,2003) Preliminary results as graphs. 2298300100018 INSTITUTE (2JPNTOK) Center for Nuclear Study, The University 2298300100019 of Tokyo, Japan// Y.Maeda, Corresponding author: 2298300100020 yukie@kutl.kyushu-u.ac.jp; K.Suda, T.Kawabata. 2298300100021 .Department of Physics, The University of Tokyo// 2298300100022 H.Kuboki, H.Sakai, K.Yako, M.Hatano, M.Sasano, 2298300100023 T.Saito, S.Sakoda, H.Kato, A.Tamii, N.Uchigashima 2298300100024 (2JPNIPC) RIKEN, Institute of Physical and Chemical 2298300100025 Research, Wako Saitama 351-0198, Japan// H.Sakai, 2298300100026 K.Sekiguchi, Y.Shimizu, K.Yako. 2298300100027 (2JPNOSA) Research Center for Nuclear Physics, Osaka 2298300100028 University, Ibaraki, Osaka, Japan// H.Okamura, 2298300100029 K.Fujita, K.Hatanaka, Y.Sakemi, Y.Shimizu, 2298300100030 Y.Tameshige, A.Tamii. Y.Kitamura, N.Sakamoto 2298300100031 D.Hirooka. 2298300100032 (2JPNICU) International Christian University, Mitaka, 2298300100033 Tokyo, Japan// M.B.Greenfield, 2298300100034 (2JPNJAE) Japan Atomic Energy Agency, Tokai, Ibaraki, 2298300100035 Japan// J.Kamiya. 2298300100036 (2JPNKYU) Department of Physics, Kyushu University, 2298300100037 Higashi, Japan// T.Wakasa. 2298300100038 (2JPNJPN) Department of Physics,Faculty of Engineering,2298300100039 Kyushu Institute of Technology, Kitakyushu, Japan// 2298300100040 H.Kamada, 2298300100041 (2JPNSUU) Saitama University, Urawa, Saitama, Japan.// 2298300100042 T.Ikeda, K.Itoh, K.Suda 2298300100043 (2SWDUPP) Department of Neutron Research, Uppsala 2298300100044 University, Sweden// A.Ohrn, J.Blomgren, M.Oesterlund2298300100045 P.Mermod, 2298300100046 (2JPNTIT) Department of Physics, Tokyo Institute of 2298300100047 Technology, Tokyo, Japan// Y.Sato. 2298300100048 (2PRTLIS) Centro de Fisica Nuclear da Universidade de 2298300100049 Lisboa, Lisboa, Portugal// A.Deltuva, A.C.Fonseca. 2298300100050 (2GERUH ) Institut fuer Theoretische Physik, Univers. 2298300100051 Hannover, Germany// P.U.Sauer. 2298300100052 (2GERBOC) Institut fuer Theoretische Physik II, Ruhr- 2298300100053 Universitaet Bochum, Germany// W.Gloeckle. 2298300100054 (2GERJUL) Institut fuer Kernphysik, Forschungszentrum 2298300100055 Juelich, Germany// A.Nogga. 2298300100056 (1USAOHO) Department of Physics, Ohio University, 2298300100057 Athens, Ohio, USA// J.Rapaport. 2298300100058 (3POLUJK) Institute of Physics, Jagiellonian Univ., 2298300100059 Cracow, Poland// J.Golak, R.Skibin'ski, H.Witala, 2298300100060 REL-REF (R,C0518001,T.N.Taddeucci+,J,PR/C,41,2548,1990) 2298300100061 Differential c-s (37.4+-1.1 mb/sr, lab.sys.) 2298300100062 for Li-7(p,n) reaction at angle O degrees. 2298300100063 Differential c-s for Li-7(p,n)Be-7(G.S+0.43MeV) in 2298300100064 center-of-mass system at angle 0 degrees 2298300100065 (27.0+-0.8 mb/sr). 2298300100066 (R,,T.Wakasa+,J,PR/C,51,R2871,1995) 2298300100067 Polarization transfer coefficient (DNN = -0.28+-0.005)2298300100068 for Li-7(p,n) reaction at angle O degrees. 2298300100069 FACILITY (CYCLO,2JPNOSA) 2298300100070 -(N,P) facility in West RCNP experimental hall. 2298300100071 Azimuthally Varying Field cyclotron, radio frequency 2298300100072 14.496 MHz, beam pulse period 69.0 nsec. 2298300100073 And 2298300100074 -NTOF facility. Ring cyclotron accelerating protons 2298300100075 to 250 MeV. Beam pulse device to reduce slow neutrons 2298300100076 from preceding beam pulses. Beam pulse interval 2298300100077 207 nsec. Included Swinger magnet to sweep out 2298300100078 proton beam. 2298300100079 INC-SOURCE (P-LI7) Polarized protons of energy 250 MeV. 2298300100080 Proton beam polarization was monitored by beamline 2298300100081 polarimeter. 2298300100082 INC-SPECT (EN-RSL-FW) Quasi-mono-energetic polarized neutron beam2298300100083 248 MeV energy, FWHM= 2 MeV. 2298300100084 METHOD (TOF) 70 m flight path in TOF tunnel. Outgoing 2298300100085 deuterons and protons were identified by using the 2298300100086 particle TOF through the spectrometer. 2298300100087 BACKWARD and FORWARD scattering measurements. 2298300100088 Determination of neutron TOF, particle identification 2298300100089 in active targets, 2298300100090 CORRECTION -For background subtraction. 2298300100091 ANALYSIS Absolute values of N,D elastic scattering cross 2298300100092 sections were deduced by normalizing data to 2298300100093 np scattering cross sections as given by NN phase 2298300100094 shift analysis program SAID. 2298300100095 ERR-ANALYS (ERR-S) Statistical error (from 3 to 25%). 2298300100096 (ERR-SYS) Systematic error. 2298300100097 HISTORY (20071025C) M.M. 2298300100098 (20071119A) Last corrections have been done - SM 2298300100099 (20090906A) M.M. Reference J,NP/A,790,430C,2007 was 2298300100100 added. Misprint in authors' list was corrected. 2298300100101 (20180831U) SD: ERR-S updated in ERR-ANALYS. 2298300100102 ENDBIB 100 0 2298300100103 COMMON 2 3 2298300100104 EN EN-RSL-FW 2298300100105 MEV MEV 2298300100106 248. 2. 2298300100107 ENDCOMMON 3 0 2298300100108 ENDSUBENT 107 0 2298300199999 SUBENT 22983002 20071026 21902298300200001 BIB 9 49 2298300200002 REACTION 1(1-H-2(N,EL)1-H-2,,DA) Measured in 2003 year. 2298300200003 2(1-H-2(N,EL)1-H-2,,DA) Measured in 2001 year. 2298300200004 EXP-YEAR 1(2003) 2298300200005 2(2001) 2298300200006 FACILITY . facility. Azimuthally Varying Field cyclotron 2298300200007 INC-SOURCE .Li-7 target mounted in vacuum neutron production 2298300200008 chamber.Clearing magnet for sweeping the primary beam.2298300200009 Neutron beam passes through vacuum window of 2298300200010 10 microm-thick aramid film at end of vacuum chamber 2298300200011 and then through veto counter. 2298300200012 INC-SPECT Produced neutrons corresponding to transitions to both2298300200013 ground and 1st excited (0.43MeV) states were selected.2298300200014 Resulting neutron beam of 30mm width and 20 mm high, 2298300200015 2.E+6 1/s intensity , polarization Pn=0.2. 2298300200016 DETECTOR (COMPL) Two beamline polarimeters for beam polarization2298300200017 monitoring. Polyethylene films as hydrogen targets.2298300200018 (SCIN) Pair of plastic scintillators(Angl-lab= 17. and 2298300200019 70.9 degrees) to detect in coincidence the scattered 2298300200020 and recoiled protons. 2298300200021 Four sets of detectors were placed in left, right,2298300200022 up and down directions. 2298300200023 Analyzing power of polarimeter at Ep=250 MeV and 2298300200024 Angle-lab=17.0degrees was measured to be 0.362+-0.003.2298300200025 Veto counter made of 1mm thick plastic scintillator 2298300200026 of size 40cm x 34 cm. 2298300200027 (SPEC) Large acceptance spectrometer (LAS). 2298300200028 Intrinsic energy resolution of LAS better 100. keV 2298300200029 for 250 MeV protons.Momentum bite pmax=1.3pmin with 2298300200030 angular acceptance 20msr.Angular range was covered 2298300200031 of +-3.5 degrees (lab.system) in one setting. 2298300200032 (MWDC) Two multiwire drift chamber boxes. 2298300200033 Mixture of argon(50%) and ethane (50%) as counter gas.2298300200034 (DRFTC) Focal plane detectors consisted of pair of 2298300200035 vertical drift chambers and two planes of deltaE 2298300200036 plastic scintillation counters. 2298300200037 SAMPLE Segmented target System. 2298300200038 Four films of self-supporting deuterated polyethylene 2298300200039 (CD2) of 100-220 mg/ cm**2 thickness. 2298300200040 Polyethylene (CH2) films of 90-190 mg/cm**2 thickness 2298300200041 as proton targets for np measurements. 2298300200042 Graphite targets for carbon background subtraction. 2298300200043 ERR-ANALYS (ERR-1) .Error of np diff. c-s obtained from SP03 2298300200044 phase-shift solution. 2298300200045 (ERR-2) .Error due to assumption that detector solid 2298300200046 angle is the same for nd and np experiments. 2298300200047 (ERR-3) .Error of nd events number counting. 2298300200048 (ERR-4) .Error of np events number counting. 2298300200049 (ERR-5) .Error of target thicknesses. 2298300200050 STATUS (TABLE) From Table I of main reference 2298300200051 ENDBIB 49 0 2298300200052 COMMON 6 3 2298300200053 ERR-SYS ERR-1 ERR-2 ERR-3 ERR-4 ERR-5 2298300200054 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 2298300200055 11. 3. 5. 8. 6. 2. 2298300200056 ENDCOMMON 3 0 2298300200057 DATA 5 26 2298300200058 ANG-CM DATA-CM 1ERR-S 1DATA-CM 2ERR-S 2 2298300200059 ADEG MB/SR MB/SR MB/SR MB/SR 2298300200060 63.5 0.310 0.014 2298300200061 66.5 0.287 0.013 2298300200062 67.0 0.251 0.016 2298300200063 70.5 0.209 0.008 2298300200064 74.5 0.157 0.008 2298300200065 75.5 0.135 0.008 2298300200066 79.5 0.115 0.006 2298300200067 83.5 0.115 0.008 2298300200068 84.5 0.112 0.008 0.097 0.005 2298300200069 88.5 0.091 0.006 0.094 0.004 2298300200070 92.5 0.076 0.006 0.079 0.005 2298300200071 94.5 0.076 0.006 2298300200072 98.5 0.072 0.004 2298300200073 104.5 0.073 0.005 2298300200074 118.5 0.072 0.003 2298300200075 122.5 0.080 0.004 2298300200076 135.0 0.102 0.005 2298300200077 139.0 0.119 0.005 2298300200078 145.0 0.133 0.005 2298300200079 149.0 0.154 0.005 2298300200080 155.5 0.184 0.007 2298300200081 159.5 0.199 0.007 2298300200082 163.5 0.223 0.011 2298300200083 169.5 0.249 0.007 0.256 0.009 2298300200084 174.0 0.272 0.010 0.276 0.014 2298300200085 178.0 0.289 0.013 2298300200086 ENDDATA 28 0 2298300200087 ENDSUBENT 86 0 2298300299999 SUBENT 22983003 20071026 21902298300300001 BIB 7 45 2298300300002 REACTION (1-H-2(N,EL)1-H-2,,DA) 2298300300003 FACILITY .NTOF facility. Ring cyclotron to 250 MeV. 2298300300004 SAMPLE Deuterated liquid scintillator BC537 as an active 2298300300005 deuteron target. Contained in 1 mm thick aluminum 2298300300006 cylinder of 9 cm diameter and 6 cm length. Located 2m 2298300300007 downstream from Li-7 target at angle 0 degrees to 2298300300008 incident proton beam.Scattering angle was varied by 2298300300009 moving positions of Li-7 target. 2298300300010 .NE213 liquid scintillator as proton target to measure 2298300300011 N,P elastic scattering for normalization. 2298300300012 DETECTOR (COMPL) Beamline polarimeter for beam polarization 2298300300013 monitoring. 2298300300014 (SCIN) VETO counter of plastic scintillator of 70 cm 2298300300015 wide, 90 cm high, 0,1cm thickness.Positioned 10cm 2298300300016 upstream of active target.To reject events due to 2298300300017 charged particles. 2298300300018 Neutron detector NPOL II consist of six planes of 2298300300019 two-dimensionally position-sensitive neutron detectors.2298300300020 (PSSCN) Upstream four planes - BC519 liquid 2298300300021 scintillator counters of size 1m x 1m x 0.1m. 2298300300022 (PSSSD) Other two planes - BC408 plastic scintillator 2298300300023 counters of size 1m x 1m x 0.1m. 2298300300024 (SCIN) Three sets (left,middle,right) of thin plastic 2298300300025 scintillators of size 102cm x 35 cm x 0.5cm, placed in2298300300026 front of each neutron detector. 2298300300027 Neutron detection efficiency was determined by 2298300300028 Li-7(n,p)Be-7(g.s.+0.43MeV) reaction differential 2298300300029 cross-section at angle 0 degrees (27.0+-0.8) mb/sr 2298300300030 in center-of-mass system from REL-REF. 2298300300031 Total efficiency (25.0 +- 0.8)% for six planes of 2298300300032 neutron detectors. 2298300300033 METHOD (COINC) Coincidence measurements of neutrons and 2298300300034 protons to reduce background events. 2298300300035 (PSD) to remove background from gamma-rays the neutron-2298300300036 gamma discrimination was introduced on base of 2298300300037 difference between pulse shapes for different types 2298300300038 of radiation. 2298300300039 ERR-ANALYS Statistical error (from 5 to 9%, 25% for angle 2298300300040 60 degrees). 2298300300041 (ERR-1) Error of nd events number counting. 2298300300042 (ERR-2) Error of np events number counting. 2298300300043 (ERR-3) Error of np diff. c-s obtained from SP03 2298300300044 phase-shift solution. 2298300300045 (ERR-4) Error of target thicknesses. 2298300300046 STATUS (TABLE) From Table II of main Ref. 2298300300047 ENDBIB 45 0 2298300300048 COMMON 5 3 2298300300049 ERR-SYS ERR-1 ERR-2 ERR-3 ERR-4 2298300300050 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 2298300300051 15. 8. 6. 6. 8. 2298300300052 ENDCOMMON 3 0 2298300300053 DATA 3 5 2298300300054 ANG-CM DATA-CM ERR-S 2298300300055 ADEG MB/SR MB/SR 2298300300056 11.1 11.15 0.78 2298300300057 20.6 6.18 0.33 2298300300058 29.9 2.68 0.16 2298300300059 39.2 1.64 0.14 2298300300060 58.6 0.81 0.20 2298300300061 ENDDATA 7 0 2298300300062 ENDSUBENT 61 0 2298300399999 SUBENT 22983004 20071026 21902298300400001 BIB 4 7 2298300400002 REACTION 1(1-H-2(N,EL)1-H-2,,POL/DA,,ANA) 2298300400003 2(1-H-2(N,EL)1-H-2,,POL/DA,,ANA) 2298300400004 FACILITY .N,P facility 2298300400005 EXP-YEAR 1(2003) 2298300400006 2(2000) 2298300400007 STATUS (TABLE) Table III of main reference. 2298300400008 (COREL,22983002) Exp.details-see SUBENT 22983.002 . 2298300400009 ENDBIB 7 0 2298300400010 COMMON 1 3 2298300400011 ERR-SYS 2298300400012 PER-CENT 2298300400013 18. 2298300400014 ENDCOMMON 3 0 2298300400015 DATA 5 11 2298300400016 ANG-CM DATA 1ERR-S 1DATA 2ERR-S 2 2298300400017 ADEG NO-DIM NO-DIM NO-DIM NO-DIM 2298300400018 63.5 -0.28 0.15 2298300400019 79.5 -0.44 0.14 2298300400020 86.5 -0.44 0.12 2298300400021 88.5 -0.55 0.18 2298300400022 98.5 -0.18 0.18 2298300400023 118.5 -0.090 0.12 2298300400024 139.0 0.12 0.11 2298300400025 149.0 0.15 0.11 2298300400026 159.5 0.17 0.11 2298300400027 169.5 0.032 0.060 0.11 0.12 2298300400028 176. -0.040 0.10 2298300400029 ENDDATA 13 0 2298300400030 ENDSUBENT 29 0 2298300499999 SUBENT 22983005 20071026 21902298300500001 BIB 3 4 2298300500002 REACTION (1-H-2(P,EL)1-H-2,,POL/DA,,ANA) 2298300500003 FACILITY .NTOF facility 2298300500004 STATUS (TABLE) Table IV of main reference. 2298300500005 (COREL,22983003) Exp.details-see SUBENT 22983.003 . 2298300500006 ENDBIB 4 0 2298300500007 COMMON 1 3 2298300500008 ERR-SYS 2298300500009 PER-CENT 2298300500010 18. 2298300500011 ENDCOMMON 3 0 2298300500012 DATA 3 3 2298300500013 ANG-CM DATA-CM ERR-S 2298300500014 ADEG NO-DIM NO-DIM 2298300500015 20.6 0.68 0.11 2298300500016 29.9 0.73 0.17 2298300500017 39.2 0.60 0.16 2298300500018 ENDDATA 5 0 2298300500019 ENDSUBENT 18 0 2298300599999 ENDENTRY 5 0 2298399999999