Publications (36)
The production of K+K- pairs in proton-proton collisions at 2.83 GeV
Q. J. Ye, M. Hartmann, Y. Maeda +30
Differential and total cross sections for the pp -> ppK+K- reaction have been measured at a proton beam energy of 2.83 GeV using the COSY-ANKE magnetic spectrometer. Detailed model…
Analysing powers and spin correlations in deuteron-proton charge exchange at 726 MeV
S. Dymov, T. Azaryan, Z. Bagdasarian +36
The charge exchange of vector polarised deuterons on a polarised hydrogen target has been studied in a high statistics experiment at the COSY-ANKE facility at a deuteron beam energ…
Inclusive K^+ meson production in proton-nucleus interactions
M. Büscher, V. Koptev, M. Nekipelov +11
The production of K^+ mesons in pA (A = D, C, Cu, Ag, Au) collisions has been investigated at the COoler SYnchrotron COSY-Jülich for beam energies T_p = 1.0 - 2.3 GeV. Double diff…
The Near-Threshold Production of Phi Mesons in pp Collisions
M. Hartmann, Y. Maeda, I. Keshelashvilli +23
The pp->pp phi reaction has been studied at the Cooler Synchrotron COSY-Juelich, using the internal beam and ANKE facility. Total cross sections have been determined at three exces…
The pp->K+ n Sigma+ reaction near threshold
Yu. Valdau, V. Koptev, S. Barsov +11
Inclusive K+ production in proton-proton collisions has been measured at a beam energy of 2.16 GeV using the COSY-ANKE magnetic spectrometer. The resulting spectrum, as well as tho…
Polarizing a stored proton beam by spin flip?
D. Oellers, L. Barion, S. Barsov +66
We discuss polarizing a proton beam in a storage ring, either by selective removal or by spin flip of the stored ions. Prompted by recent, conflicting calculations, we have carried…
Coherent pion production in proton-deuteron collisions
S. Dymov, V. Shmakova, D. Mchedlishvili +36
Values of the proton analysing power in the reactions at 350-360~MeV per nucleon were obtained by using a polarised proton beam…
Kaon Pair Production in Proton--Proton Collisions
Y. Maeda, M. Hartmann, I. Keshelashvili +23
The differential and total cross sections for kaon pair production in the pp->ppK+K- reaction have been measured at three beam energies of 2.65, 2.70, and 2.83 GeV using the ANKE m…
Excitation of the Delta(1232) isobar in deuteron charge exchange on hydrogen at 1.6, 1.8, and 2.3 GeV
D. Mchedlishvili, S. Barsov, J. Carbonell +42
The charge-exchange break-up of polarised deuterons pol{d}p -> {pp}n, where the final {pp} diproton system has a very low excitation energy and hence is mainly in the 1S0 state, is…
Measurement of the pn -> dK^+K^- total cross section close to threshold
Y. Maeda, M. Hartmann, I. Keshelashvili +20
Measurements of the pn -> p_spec dK^+K^- reaction, where p_spec is a spectator proton, have been undertaken at the Cooler Synchrotron COSY-Juelich by detecting a fast deuteron in c…
Study of omega-meson production in pp collisions at ANKE
S. Barsov, M. Büscher, M. Hartmann +26
The production of omega-mesons in the pp->pp omega reaction has been investigated with the COSY-ANKE spectrometer for excess energies of 60 and 92MeV by detecting the two final pro…
Deuteron analysing powers in deuteron-proton elastic scattering at 1.2 and 2.27 GeV
D. Mchedlishvili, Z. Bagdasarian, S. Barsov +31
The vector and tensor analysing powers in deuteron-proton elastic scattering have been measured in the forward hemisphere at deuteron kinetic energies of 1.2 GeV and 2.27 GeV using…
Kaon pair production in proton-nucleus collisions at 2.83 GeV kinetic energy
Yu. T. Kiselev, M. Hartmann, A. Polyanskiy +23
The production of non-phi K+K- pairs by protons of 2.83 GeV kinetic energy on C, Cu, Ag, and Au targets has been investigated using the COSY-ANKE magnetic spectrometer. The K- mome…
Measurement of the analysing power in proton-proton elastic scattering at small angles
Z. Bagdasarian, D. Chiladze, S. Dymov +36
The proton analysing power in elastic scattering has been measured at small angles at COSY-ANKE at 796 MeV and five other beam energies between 1.6 and 2.4 GeV using a p…
Resonance-like coherent production of a pion pair in the reaction in the GeV region
V. I. Komarov, D. Tsirkov, T. Azaryan +27
The reaction was studied at 0.8-2.0 GeV proton beam energies with the ANKE magnetic spectrometer at the COSY synchrotron storage ring. The proton-deut…
Measurement of the Spin-Dependence of the pbar-p Interaction at the AD-Ring
C. Barschel, U. Bechstedt, J. Dietrich +106
We propose to use an internal polarized hydrogen storage cell gas target in the AD ring to determine for the first time the two total spin-dependent pbar-p cross sections sigma_1 a…
The neutron-proton charge-exchange amplitudes measured in the dp -> ppn reaction
D. Mchedlishvili, S. Barsov, J. Carbonell +41
The unpolarised differential cross section and the two deuteron tensor analysing powers A_{xx} and A_{yy} of the pol{d}p -> (pp)n charge-exchange reaction have been measured with t…
Measurement of the Analyzing Power in \\with a Fast Forward --Diproton
S. Yaschenko, S. Dymov, V. Komarov +28
A measurement of the analyzing power of the reaction was carried out at beam energies of 0.5 and 0.8 GeV by detection of a fast forward proton pair of…
Measurement of the analyzing powers in pd elastic and pn quasi-elastic scattering at small angles
S. Barsov, Z. Bagdasarian, S. Dymov +30
The analyzing powers in proton-deuteron elastic and proton-neutron quasi-elastic scattering have been measured at small angles using a polarized proton beam at the COSY storage rin…
Study of the charge-exchange reaction using a polarised deuterium target
B. Gou, D. Mchedlishvili, Z. Bagdasarian +38
The vector and tensor analysing powers, and , of the charge-exchange reaction have been measured at a beam energy of 600 MeV at the COSY-AN…
The energy dependence of the pp->K+ n Sigma+ reaction close to threshold
Yu. Valdau, S. Barsov, M. Büscher +20
The production of the Sigma+ hyperon through the pp->K+nSigma+ reaction has been investigated at four energies close to threshold, 1.826, 1.920, 1.958, and 2.020 GeV. At low energi…
Measurement of the absolute differential cross section of proton-proton elastic scattering at small angles
D. Mchedlishvili, D. Chiladze, S. Dymov +38
The differential cross section for proton-proton elastic scattering has been measured at a beam energy of 1.0 GeV and in 200 MeV steps from 1.6 to 2.8 GeV for centre-of-mass angles…
Near-threshold production of omega mesons in the pn -> d omega reaction
S. Barsov, I. Lehmann, R. Schleichert +21
The first measurement of the p n -> d omega total cross section has been achieved at mean excess energies of Q = 28 and 57 MeV by using a deuterium cluster-jet target. The momentum…
Total and differential cross sections of the reaction at excess energies between 1 and 15 MeV
C. Fritzsch, S. Barsov, I. Burmeister +23
New high precision total and differential cross sections are reported for the reaction close to threshold. The measurements were performed using the mag…
Precision measurement of the quasi-free pn->dphi reaction close to threshold
Y. Maeda, M. Hartmann, I. Keshelashvili +21
The quasi-free pn->dphi reaction has been studied at the Cooler Synchrotron COSY-Juelich, using the internal proton beam incident on a deuterium cluster-jet target and detecting a…
Absence of spin dependence in the final state interaction of the d(pol) p --> 3He eta reaction
M. Papenbrock, S. Barsov, I. Burmeister +27
The deuteron tensor analysing power t_{20} of the d(pol) p --> 3He eta reaction has been measured at the COSY-ANKE facility in small steps in excess energy Q up to Q = 11 MeV. Desp…
Toward polarized antiprotons: Machine development for spin-filtering experiments
C. Weidemann, F. Rathmann, H. J. Stein +54
The paper describes the commissioning of the experimental equipment and the machine studies required for the first spin-filtering experiment with protons at a beam kinetic energy o…
First measurements of spin correlations in the np -> d pi^0 reaction
V. Shmakova, D. Mchedlishvili, S. Dymov +32
The transverse spin correlations Axx and Ayy in the np-> d pi^0 reaction have been measured for the first time in quasi-free kinematics at the COSY-ANKE facility using a polarised…
New determination of the mass of the eta meson at COSY-ANKE
P. Goslawski, A. Khoukaz, S. Barsov +23
A value for the mass of the eta meson has been determined at the COSY-ANKE facility through the measurement of a set of deuteron laboratory beam momenta and associated 3He center-o…
Spectator detection for the measurement of proton neutron interactions at ANKE
I. Lehmann, S. Barsov, R. Schleichert +11
A telescope of three silicon detectors has been installed close to the internal target position of the ANKE spectrometer, which is situated inside the ultra-high vacuum of the COSY…
Experimental and theoretical study of deuteron-proton elastic scattering for proton kinetic energies between and
C. Fritzsch, S. Barsov, I. Burmeister +24
New precise unpolarised differential cross sections of deuteron-proton elastic scattering have been measured at 16 different deuteron beam momenta between $p_d = 3120.17\;\textrm{M…
Differential cross section and analysing power of the quasi-free pn -> {pp}_s pi- reaction at 353 MeV
S. Dymov, T. Azaryan, S. Barsov +36
In order to establish links between p-wave pion production in nucleon-nucleon collisions and low energy three-nucleon scattering, an extensive programme of experiments on pion prod…
Determination of Deuteron Beam Polarizations at COSY
D. Chiladze, A. Kacharava, F. Rathmann +44
The vector and tensor polarizations of a deuteron beam have been measured using elastic deuteron-carbon scattering at 75.6 MeV and deuteron-proton scattering at 270 MeV. After acce…
Technical Design Report of the Spin Physics Detector at NICA
The SPD Collaboration, V. Abazov, V. Abramov +411
The Spin Physics Detector collaboration proposes to install a universal detector in the second interaction point of the NICA collider under construction (JINR, Dubna) to study the…
Measurement of spin observables in the quasi-free np-> {pp}_s pi- reaction at 353 MeV
S. Dymov, V. Shmakova, T. Azaryan +54
The transverse spin correlations A_{x,x} and A_{y,y} have been measured in the pol{d} pol{p} -> p_spec {pp}_s pi- reaction at COSY-ANKE at 353 MeV per nucleon. Here {pp}_s denotes…
Comparison of inclusive K+ production in proton-proton and proton-neutron collisions
Yu. Valdau, V. Koptev, S. Barsov +13
The momentum spectra of K+ produced at small angles in proton-proton and proton-deuteron collisions have been measured at four beam energies, 1.826, 1.920, 2.020, and 2.650 GeV, us…