ENTRY 20022 20190117 22742002200000001 SUBENT 20022001 20190117 22742002200100001 BIB 12 39 2002200100002 TITLE High precision n-p total cross section in the energy 2002200100003 range 0.5 to 7.0 MeV 2002200100004 AUTHOR (A.Langsford, P.J.Clements) 2002200100005 INSTITUTE (2UK HAR) 2002200100006 REFERENCE (P,AERE-PR/NP-16,39,1969) The result of a series of 2002200100007 measurements in the following references. 2002200100008 (P,AERE-PR/NP-15,33,1969) - short issue 2002200100009 (P,AERE-PR/NP-14,50,1968) - determination of the 2002200100010 singlet n-p effective range parameter 2002200100011 (P,AERE-PR/NP-11,28,1967) - analysis of uncertainties 2002200100012 FACILITY (SYNCY,2UK HAR) Harwell synchrocyclotron. 2002200100013 INC-SOURCE No information available. 2002200100014 SAMPLE Different hydrocarbon liquid, the ratio of 2002200100015 hydrogen to carbon in the samples was varied such as 2002200100016 toluene, cyclohexane and 2-2-4 trimethyl pentane, 2002200100017 carbon sample. 2002200100018 METHOD (TOF) Time of flight. The cross sections were 2002200100019 determined from a series of measurements of the rela- 2002200100020 tive transmission of a neutron beam through carbon 2002200100021 and hydrocarbon samples, in which both the mass of 2002200100022 material in the beam and the ratio of hydrogen to 2002200100023 carbon in the samples were varied. 2002200100024 COMMENT The authors conclude that the present measurement 2002200100025 affords no evidence for an oscillatory term in the 2002200100026 n-p total cross section of the type reported by 2002200100027 Gy.Hrehuss and T.Czibok greater than about 6 mb, 2002200100028 (Phys.Lett.28B,585(1968)). 2002200100029 ERR-ANALYS (ERR-S) Statistical uncertainty. 2002200100030 (ERR-SYS) Systematical uncertainty, where the most 2002200100031 significant contribution comes from the uncertainty 2002200100032 in the resolving time of the coincidence system used 2002200100033 in the detection of neutrons ( about +- 7 mb). 2002200100034 In this uncertainty is also included the contribution2002200100035 from background correction (about 0.03 to 0.2%). 2002200100036 STATUS (TABLE) Tbl.I on p.40 of AERE-PR/NP-16,39,1969 2002200100037 HISTORY (19710201C) 2002200100038 (19810309A) ERR-ANALYS corrected. 2002200100039 (20190117A) SD:Updated to new date formats,lower case. 2002200100040 Data were restored from archive. 2002200100041 ENDBIB 39 0 2002200100042 NOCOMMON 0 0 2002200100043 ENDSUBENT 42 0 2002200199999 SUBENT 20022002 20190117 22742002200200001 BIB 3 5 2002200200002 REACTION (1-H-1(N,TOT),,SIG) 2002200200003 STATUS (SPSDD,21497002) - final data 2002200200004 HISTORY (19810309A) 2002200200005 (20190117S) SD: Data were restored from archive. 2002200200006 SYAYUS updated. ERR-1 -> ERR-SYS 2002200200007 ENDBIB 5 0 2002200200008 NOCOMMON 0 0 2002200200009 DATA 4 10 2002200200010 EN DATA ERR-S ERR-SYS 2002200200011 MEV B B B 2002200200012 0.841 4.691 0.005 0.008 2002200200013 1.161 3.947 0.004 0.007 2002200200014 1.453 3.493 0.004 0.008 2002200200015 1.750 3.155 0.003 0.007 2002200200016 2.045 2.893 0.004 0.008 2002200200017 2.346 2.674 0.004 0.007 2002200200018 2.719 2.439 0.003 0.007 2002200200019 3.324 2.163 0.003 0.007 2002200200020 4.375 1.796 0.003 0.005 2002200200021 5.858 1.455 0.003 0.004 2002200200022 ENDDATA 12 0 2002200200023 ENDSUBENT 22 0 2002200299999 ENDENTRY 2 0 2002299999999