Tensor polarization in a deuterium target of non-uniform spin temperatures

1989 ◽  
Author(s):  
G. D. Wait
2021 ◽  
pp. 2150199
Author(s):  
V. V. Gauzshtein ◽  
E. Darwish ◽  
A. I. Fix ◽  
M. Ya. Kuzin ◽  
M. I. Levchuk ◽  
...  

This paper presents new results for the [Formula: see text]-component of the tensor analyzing power of the reaction [Formula: see text] in the photon energy range of [Formula: see text]. The experimental statistics accumulated in 2013 at the VEPP-3 accelerator-storage complex is used. The reaction events are identified by the coincidence registration of the proton and two [Formula: see text]-quanta from the decay of the neutral pion. To determine the [Formula: see text]-component, the asymmetry of the yields with respect to the change of sign of the tensor polarization of the deuterium target is measured. The experimental results are compared with the theoretical calculations in which the MAID 2007 model is used as the elementary pion–nucleon photoproduction amplitude and contributions from the pion–nucleon and nucleon–nucleon rescattering are taken into account.


1973 ◽  
Vol 28 (9) ◽  
pp. 1385-1388
Author(s):  
S. Hess ◽  
H. Vestner

The correlation function of the tensor polarization relevant for the depolarized Rayleigh line of a gas of rotating linear molecules is calculated for the pressure broadening regime. Point of depar­ture is the Waldmann-Snider equation for the distribution function of the gas. Due to the collisional coupling between the tensor polarization and other moments of the distribution function the cor­relation function turns out to be a sum of exponential functions. Consequently the depolarized Rayleigh line has a non-Lorentzian shape.


2016 ◽  
Vol 40 ◽  
pp. 1660058
Author(s):  
B. Gou

The quasi-free np charge-exchange reaction [Formula: see text] has to be employed to extend the investigations of np scattering at ANKE to the highest energy available at COSY. As the proof-of-principle experiment, the initial research has been conducted at proton energy [Formula: see text] MeV using a polarized Deuterium target. The vector and tensor analyzing powers [Formula: see text] and [Formula: see text] were measured for momentum transfers [Formula: see text] MeV/c. These data connect smoothly with the previous measurements at [Formula: see text] MeV/c performed using a polarized deuteron beam. The reported data are well reproduced by the impulse approximation using the SAID np amplitudes. The results therefore proves that it is possible to continue the np programme at higher energies at ANKE.


2015 ◽  
Vol 741 ◽  
pp. 305-309 ◽  
Author(s):  
B. Gou ◽  
D. Mchedlishvili ◽  
Z. Bagdasarian ◽  
S. Barsov ◽  
J. Carbonell ◽  
...  

1995 ◽  
pp. 241-247
Author(s):  
K. D. Williamson ◽  
J. E. Simmons ◽  
F. J. Edeskuty ◽  
J. H. Fretwell ◽  
J. T. Martin ◽  
...  

1967 ◽  
Vol 97 (1) ◽  
pp. 177-186 ◽  
Author(s):  
M. Ivanovich ◽  
H. Cords ◽  
G.U. Din
Keyword(s):  

1993 ◽  
Author(s):  
V. V. Frolov ◽  
S. I. Mishnev ◽  
D. M. Nikolenko ◽  
S. G. Popov ◽  
I. A. Rachek ◽  
...  

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