Tensor analyzing power Ayy in deuteron inclusive breakup at large Pt and spin structure of deuteron at short internucleonic distances

The Ayy data for deuteron inclusive breakup off hydrogen and carbon at a deuteron momentum of 9.0 GeV/c and large Pt of emitted protons are presented. The large values of Ayy independent of the target mass reflect the sensitivity of the data to the deuteron spin structure. The data obtained at fixed $x$ and plotted versus Pt clearly demonstrate the dependence of the deuteron spin structure at short internucleonic distances on two variables. The data are compared with the calculations using Paris, CD-Bonn and Karmanov's deuteron wave functions.Comment: 4 pages, 2 figures, talk given at the SPIN2004 Conf., 10-16 Oct. 2004, Triest, Ital

Measurement of the tensor Ayy and vector Ay analyzing powers of the deuteron inelastic scattering off berillium at 5.0 GeV/c and 178 mr

Tensor Ayy and vector Ay analyzing powers in the inelastic scattering of deuterons with the momentum of 5.0 GeV/c on beryllium at an angle of 178 mr in the vicinity of the excitation of baryonic resonances with masses up to 1.8 GeV/c^2 have been measured. The Ayy data are in a good agreement with the previous data obtained at 4.5 and 5.5 GeV/c. The results of the experiment are compared with the predictions of the plane wave impulse approximation and \omega-meson exchange models.Comment: 18 pages, 9 figure

Tensor Ayy and vector Ay analyzing powers in the H(d,d')X and ^{12}C(d,d')X reactons at initial deuteron momenta of 9 GeV/c in the region of baryonic resonances excitation

The angular dependence of the tensor Ayy and vector Ay analyzing powers in the inelastic scattering of deuterons with a momentum of 9.0 GeV/c on hydrogen and carbon have been measured. The range of measurements corresponds to the baryonic resonance excitation with masses 2.2--2.6 GeV/c^2. The Ayy data being in good agreement with the previous results demonstrate an approximate $t$ scaling up to -1.5 (GeV/c)^2. The large values of A_y show a significant role of the spin-dependent part of the elementary amplitude of the NN->NN* reaction. The results of the experiment are compared with model predictions of the plane-wave impulse approximation.Comment: 7 pages, 7 figures. submitted to Yad.Fi

Intermediate-energy polarimeter for the measurement of the deuteron and proton beam polarization at the JINR synchrophasotron

The vector polarization of the deuteron beam (2.5 <= P sub d <= 9.0 GeV/c) of the JINR synchrophasotron was measured and monitored by the pp beam polarimeter. Considering the deuteron beam as a beam of weakly bound protons and neutrons, the asymmetries of scattering of protons from deuterons on thin polyethylene and carbon targets were determined. The polarimeter is described, and the values of the vector polarization of the deuteron beam and of the CH sub 2 analyzing power are give

Calibration of the beam polarimeter at the JINR synchrophasotron

The results of calibration of the polarimeter for the measurement of the vector component of the polarization of the deuteron beam at the JINR Synchrophasotron are presented. The data of the analyzing power of the elastic pp scattering at an angle of 14 deg (lab. syst.) in the range of proton momenta from 1.18 to 3.46 GeV/c and on the effective analyzing power of the proton scattering on polyethylene target at proton momenta between 1.48 and 2.79 GeV/c are given. The data obtained were used to measure the deuteron beam polarization during experiment on the measurement of the total cross section difference DELTA sigma sub L in np transmissio