ENTRY J1839 20050517 J002J183900000001 SUBENT J1839001 20050517 J002J183900100001 BIB 14 35 J183900100002 TITLE Confirmation of dip-bump structure in backward pi- - d J183900100003 elastic scattering: Possible evidence for dibaryon J183900100004 resonances J183900100005 AUTHOR (M.Akemoto, K.Baba, I.Endo, H.Himemiya, K.Inoue, J183900100006 T.Kawamoto, Y.Maeda, T.Ohsugi, R.Ohtani, Y.Sumi, J183900100007 T.Takeshita, S.Uehara, T.Umeda, T.Maki) J183900100008 INSTITUTE (2JPNHIR) Department of Physics J183900100009 (2JPNKIT) J183900100010 REFERENCE (J,PRL,50,(6),400,198302) Main reference J183900100011 (J,PRL,51,(20),1838,198311) Revised data are given J183900100012 PART-DET (PIN) J183900100013 (D) J183900100014 EN-SEC ANG-CM is polar angle between beam and negative pion J183900100015 in center of mass system J183900100016 INC-SOURCE Beam intensity: Typically 1e4 pions/burst at 500 MeV/c J183900100017 and 1e5 pions/burst at 1 GeV/c J183900100018 SAMPLE - Chemical-form of target is element. J183900100019 - Physical-form of target is liquid. J183900100020 - Target-thickness: 5.5 cm diameter and 20 cm long J183900100021 METHOD (COINC) Detect negative pion and deuteron in J183900100022 coincidence. J183900100023 (TOF) To identify deuteron from two-dimensional plot J183900100024 of momentum versus time of flight J183900100025 FACILITY (SYNCH,2JPNLEP) J183900100026 DETECTOR (MAGSP) To analyze forward scattered deuterons J183900100027 (MWPC) To measure analyzed deuteron position J183900100028 (SCIN) To measure time of flight of forward deuteron J183900100029 (MWPC) To measure direction of backward negative pion J183900100030 ERR-ANALYS (ERR-1) Track reconstruction efficiency J183900100031 (ERR-2) Effect of d-d interactions in the target J183900100032 vessel J183900100033 (ERR-3) Beam contamination mainly due to muons J183900100034 (ERR-4) Empty-target contribution J183900100035 ADD-RES (COMP) Faddeev method J183900100036 HISTORY (20031218C) J183900100037 ENDBIB 35 0 J183900100038 COMMON 6 3 J183900100039 MOM-RSL ANG-CM ERR-1 ERR-2 ERR-3 ERR-4 J183900100040 PER-CENT ADEG PER-CENT PER-CENT PER-CENT PER-CENT J183900100041 1.5 172.0 92.0 15.0 4.0 2.0 J183900100042 ENDCOMMON 3 0 J183900100043 ENDSUBENT 42 0 J183900199999 SUBENT J1839002 20050517 J002J183900200001 BIB 4 9 J183900200002 REL-REF (A,,R.Keller+,J,PR/D,11,(9),2389,197505) J183900200003 (A,,R.Frascaria+,J,PL/B,91,(3-4),345,198004) J183900200004 (A,,B.M.Abramov+,J,NP/A,372,(3),301,198112) J183900200005 REACTION (1-H-2(PIN,EL)1-H-2,,DA) J183900200006 ERR-ANALYS (ERR-S) Statistical error J183900200007 (ERR-SYS) Total systematic error J183900200008 STATUS (TABLE) Data (Fig.2, p401 in reference) taken from the J183900200009 Durham HEP Data bases (AKEMOTO 83) with J183900200010 author's confirmation J183900200011 ENDBIB 9 0 J183900200012 COMMON 1 3 J183900200013 ERR-SYS J183900200014 PER-CENT J183900200015 5.0 J183900200016 ENDCOMMON 3 0 J183900200017 DATA 3 47 J183900200018 MOM DATA-CM ERR-S J183900200019 GEV/C MU-B/SR MU-B/SR J183900200020 0.42 93.15 4.37 J183900200021 0.44 92.30 6.37 J183900200022 0.46 67.97 5.51 J183900200023 0.48 54.70 4.41 J183900200024 0.50 50.92 3.04 J183900200025 0.52 42.36 2.63 J183900200026 0.54 37.45 2.44 J183900200027 0.55 27.25 1.97 J183900200028 0.56 26.59 1.96 J183900200029 0.57 21.37 1.71 J183900200030 0.58 20.15 2.27 J183900200031 0.59 17.70 1.54 J183900200032 0.60 18.05 2.17 J183900200033 0.61 11.79 1.17 J183900200034 0.62 12.68 1.06 J183900200035 0.63 9.68 0.55 J183900200036 0.64 11.47 0.72 J183900200037 0.65 11.01 0.59 J183900200038 0.66 11.59 0.57 J183900200039 0.67 11.53 0.58 J183900200040 0.68 11.71 0.51 J183900200041 0.69 11.43 0.53 J183900200042 0.70 10.22 0.48 J183900200043 0.71 10.35 0.70 J183900200044 0.72 10.09 0.71 J183900200045 0.73 9.56 0.66 J183900200046 0.74 8.05 0.50 J183900200047 0.75 8.05 0.91 J183900200048 0.76 7.46 0.78 J183900200049 0.77 5.63 0.83 J183900200050 0.78 5.23 0.60 J183900200051 0.80 4.93 0.34 J183900200052 0.82 4.56 0.33 J183900200053 0.84 3.74 0.29 J183900200054 0.86 2.56 0.30 J183900200055 0.88 1.26 0.15 J183900200056 0.90 1.29 0.14 J183900200057 0.92 0.82 0.11 J183900200058 0.94 0.80 0.09 J183900200059 0.96 0.57 0.08 J183900200060 0.98 0.67 0.09 J183900200061 1.00 0.78 0.09 J183900200062 1.02 0.60 0.08 J183900200063 1.04 0.89 0.10 J183900200064 1.08 0.88 0.10 J183900200065 1.12 0.84 0.09 J183900200066 1.16 0.75 0.09 J183900200067 ENDDATA 49 0 J183900200068 ENDSUBENT 67 0 J183900299999 ENDENTRY 2 0 J183999999999