ENTRY O1131 20040512 0000O113100000001 SUBENT O1131001 20040512 0000O113100100001 BIB 12 49 O113100100002 TITLE The relative cross section for elastic proton-proton O113100100003 scattering between 500- and 600-MeV. O113100100004 AUTHOR (A.Berdoz, B.Favier, F.Foroughi, J.Hoftiezer, O113100100005 G.S.Mutchler, C.Weddigen) O113100100006 INSTITUTE (2SWTNEU) Institut de Physique O113100100007 (2GERKFK) Institut fuer Kernphysik. O113100100008 (2GERKRU) Institut fuer Experimentelle Kernphysik. O113100100009 REFERENCE (J,JP/G,8,1363,1982) O113100100010 HISTORY (20040216C) O113100100011 (20040512U) Last checking has been done. O113100100012 SAMPLE Two small CH(2) targets, 10*10*2.3-mm**3 and O113100100013 10*10*1.5-mm**3, were used for data taking while two O113100100014 corresponding C-targets, 10*10*1-mm**3 and 10*10*0.5- O113100100015 mm*3, were used to find the background contribution. O113100100016 The targets were oriented at an angle of 21-degree O113100100017 with respect to the beam direction to reduce the energyO113100100018 loss of the recoil protons. O113100100019 DETECTOR (TELES,SCIN,SCIN) Two monitor telescope. O113100100020 Two scintillators 5*5-cm**2 and 8*8-cm**2 O113100100021 detected P-P elastic scattering events in coincidence. O113100100022 (MWDC) Two the multi-wire ionization chambers. O113100100023 COMMENT -By authors. Finally the relative cross sections were O113100100024 obtained by dividing by the solid-angle Monte-Carlo O113100100025 corrections, the jacobian and the monitor value. O113100100026 The statistical error on the monitor normalization is O113100100027 less than 0.3%. O113100100028 The relative cross section are given normalized O113100100029 internally with respect to the average 90-degree value.O113100100030 The errors are due only to the statistics of each O113100100031 particular angle, without propagation of the error at O113100100032 90-degree. O113100100033 An absolute normalization of the distribution is O113100100034 available from previous 90-degree studies with the O113100100035 current apparatus providing purely experimental O113100100036 results. O113100100037 ERR-ANALYS (EN-ERR) The uncertainty of beam energy. O113100100038 FACILITY (SYNCY,2SWTVIL) O113100100039 METHOD (EXTB) The used beam originates from 8 degree O113100100040 scattering by a thin Be target of the primary 592 MeV O113100100041 proton beam, which is pulsed at a frequency of 51 MHz. O113100100042 It is focused on a Cu degrader, purified by a O113100100043 deflecting magnet and focused on the target position. O113100100044 To avoid the influence of the beam polarisation (42%) O113100100045 was rotated in a superconducting solenoid from the O113100100046 vertical direction into the horizontal scattering O113100100047 plane. O113100100048 (SITA) O113100100049 (COINC) O113100100050 STATUS (TABLE) O113100100051 ENDBIB 49 0 O113100100052 COMMON 1 3 O113100100053 EN-ERR O113100100054 MEV O113100100055 1.5 O113100100056 ENDCOMMON 3 0 O113100100057 ENDSUBENT 56 0 O113100199999 SUBENT O1131002 20040512 0000O113100200001 BIB 4 7 O113100200002 REACTION (1-H-1(P,EL)1-H-1,,DA,,REL) O113100200003 REL-REF (R,O1132002,P.CHATELAIN+,J,JP/G,8,643,1982) The data O113100200004 were used for normalisation. O113100200005 MISC-COL (MISC) The cross section normalised by cross section atO113100200006 90 degrees from REL-REF. O113100200007 (MISC-ERR) Statistical uncertainty. O113100200008 ERR-ANALYS (ERR-S) Statistical uncertainty. O113100200009 ENDBIB 7 0 O113100200010 NOCOMMON 0 0 O113100200011 DATA 6 21 O113100200012 EN ANG-CM DATA ERR-S MISC MISC-ERR O113100200013 MEV ADEG ARB-UNITS ARB-UNITS MB/SR MB/SR O113100200014 529.4 30. 1.5757 0.0084 5.265 0.028O113100200015 529.4 40. 1.4321 0.0077 4.785 0.026O113100200016 529.4 50. 1.304 0.0065 4.357 0.022O113100200017 529.4 60. 1.1822 0.006 3.934 0.014O113100200018 529.4 70. 1.082 0.0057 3.618 0.013O113100200019 529.4 80. 1.0261 0.0051 3.428 0.017O113100200020 529.4 90. 1.0044 0.0046 3.341 0.009O113100200021 555.9 30. 1.7627 0.0088 5.417 0.019O113100200022 555.9 40. 1.5656 0.0077 4.802 0.024O113100200023 555.9 50. 1.4111 0.0064 4.328 0.02O113100200024 555.9 60. 1.243 0.0053 3.812 0.016O113100200025 555.9 70. 1.1006 0.0046 3.376 0.014O113100200026 555.9 80. 1.0274 0.0042 3.151 0.013O113100200027 555.9 90. 1. 0.0041 3.067 0.013O113100200028 581.8 30. 1.9875 0.0085 5.84 0.018O113100200029 581.8 40. 1.7379 0.0076 5.092 0.016O113100200030 581.8 50. 1.5275 0.0064 4.488 0.019O113100200031 581.8 60. 1.3155 0.0053 3.865 0.016O113100200032 581.8 70. 1.1494 0.0046 3.377 0.014O113100200033 581.8 80. 1.0426 0.0039 3.063 0.011O113100200034 581.8 90. 0.9992 0.0036 2.938 0.007O113100200035 ENDDATA 23 0 O113100200036 ENDSUBENT 35 0 O113100299999 ENDENTRY 2 0 O113199999999