ENTRY            41564   20140130                             41634156400000001 
SUBENT        41564001   20140130                             41634156400100001 
BIB                 12         49                                 4156400100002 
TITLE      Study of Neutron-Neutron Scattering in nd Breakup      4156400100003 
           Reaction.                                              4156400100004 
AUTHOR     (E.Konobeevski,S.V.Zuyev, M.V.Mordovskoy, S.I.Potashev,4156400100005 
           I.M.Sharapov)                                          4156400100006 
INSTITUTE  (4RUSJIA)                                              4156400100007 
REFERENCE  (J,YF,76,(11),1398,2013)                               4156400100008 
           (J,PAN,76,1398,2013) Engl.translation of J,YF,76 .     4156400100009 
           #doi:10.1134/S1063778813110100                         4156400100010 
           (J,JP/CS,340,012047,2012)                              4156400100011 
           #doi:10.1088/1742-6596/340/1/012047                    4156400100012 
REL-REF    (I,,S.V.Zuyev+,J,IET,51,327,2008)                      4156400100013 
           #doi:10.1134/S0020441208030019                         4156400100014 
               Engl.trans.of PTE,,(3),5,2008                      4156400100015 
FACILITY                   Moscow Meson Factory of the Institute  4156400100016 
           for Nuclear Research.                                  4156400100017 
           (LINAC,4RUSJIA) Beam stop of 200 MeV protons of the    4156400100018 
           linear accelerator.                                    4156400100019 
INC-SOURCE (SPALL) Neutrons produced in the tungsten target (60mm 4156400100020 
           W) are collimated at zero angle at a length of 12 m in 4156400100021 
           order to form a beam with a diameter of about 60 mm at 4156400100022 
           the reaction CD2 target.                               4156400100023 
INC-SPECT   Neutrons incident on the deuterium target have a      4156400100024 
           continuous energy spectrum, with an endpoint energy    4156400100025 
           equal to the proton beam energy. Detection of three    4156400100026 
           particles in coincidence makes it possible to          4156400100027 
           reconstruct the primary neutron energy in the          4156400100028 
           n+d -> p+n+n reaction and obtain data on the reaction  4156400100029 
           yield in a wide range of neutron energies, determined  4156400100030 
           only by the statistics of the experiment.              4156400100031 
DETECTOR   (TELES,SCIN) dE-E telescope consisting of two fast     4156400100032 
           plastic scintillation detectors. For proton detection. 4156400100033 
           The neutron time-of-flight hodoscope consists of       4156400100034 
           several (5-6 at the moment) detectors, located at      4156400100035 
           different angles with respect to the primary neutron   4156400100036 
           direction at a flight distance of 4-5 m from the CD2   4156400100037 
           target,on the left from the incident neutron beam axis.4156400100038 
           The time resolution of all detectors was about 0.6 ns. 4156400100039 
           The angular resolution was defined by the detector     4156400100040 
           cross section size and the time-of-flight distance;    4156400100041 
           it was about +-0.5deg.                                 4156400100042 
SAMPLE     CD2 of 100 mg/cm**2 thickness.                         4156400100043 
METHOD     (TOF)                                                  4156400100044 
           (EDE)                                                  4156400100045 
           (COINC) Three particles in coincidence - proton and two4156400100046 
           neutrons.                                              4156400100047 
HISTORY    (20121003C)  M.M.                                      4156400100048 
           (20140130A) Ref. J,YF,76,(11),1398,2013 and its English4156400100049 
           translation were added.                                4156400100050 
           Data of Subent 002 were updated by last published.     4156400100051 
ENDBIB              49          0                                 4156400100052 
NOCOMMON             0          0                                 4156400100053 
ENDSUBENT           52          0                                 4156400199999 
SUBENT        41564002   20140130                             41634156400200001 
BIB                  5          9                                 4156400200002 
REACTION   (0-NN-1(N,EL)0-NN-1,,AMP)  Neutron scattering length   4156400200003 
METHOD      Experiments have been performed in the final state    4156400200004 
           interaction (FSI) geometry. The neutron-neutron FSI    4156400200005 
           manifests itself as a peak in the reaction yield       4156400200006 
           distribution versus the relative energy of two neutrons4156400200007 
ANALYSIS   Simulation based on the Watson-Migdal approximation.   4156400200008 
ERR-ANALYS (ERR-S) Statistical uncertainty .                      4156400200009 
STATUS     (TABLE) Text,page 1482 of J,YF,76,(11),1398 .          4156400200010 
           Text,page 5 of J,JP/CS,340,012047,2012 -  17.9+-0.9 Fm.4156400200011 
ENDBIB               9          0                                 4156400200012 
NOCOMMON             0          0                                 4156400200013 
DATA                 4          1                                 4156400200014 
EN         EN-ERR     DATA       ERR-S                            4156400200015 
MEV        MEV        FERMI      FERMI                            4156400200016 
40.        5.          -17.9      1.0                             4156400200017 
ENDDATA              3          0                                 4156400200018 
ENDSUBENT           17          0                                 4156400299999 
ENDENTRY             2          0                                 4156499999999