scholarly journals Differential cross section and analyzing power of thep→p→ppπ0reaction at a beam energy of 390 MeV

2008 ◽  
Vol 77 (4) ◽  
Author(s):  
Y. Maeda ◽  
M. Segawa ◽  
T. Ishida ◽  
A. Kacharava ◽  
M. Nomachi ◽  
...  
2021 ◽  
pp. 14-18
Author(s):  
G.I. Gakh ◽  
M.I. Konchatnij ◽  
N.P. Merenkov ◽  
A.G. Gakh

The differential cross section and some polarization observables have been calculated for the e⁺e¯ → γγ reaction taking into account the contribution of the excited electron. The spin correlation coefficients were calculated for the case when both beams are polarized. We consider two approaches for the excited electron contribution: the eу → γγ contact interaction and the exchange of the excited electron in t- and u-channels. Numerical estimations are given for the excited electron contribution to the differential cross section and spin correlation coefficients for vari-ous values of the electron beam energy and excited electron mass.


1982 ◽  
Vol 385 (3) ◽  
pp. 373-406 ◽  
Author(s):  
W. Tornow ◽  
E. Woye ◽  
G. Mack ◽  
C.E. Floyd ◽  
K. Murphy ◽  
...  

2007 ◽  
Vol 76 (1) ◽  
Author(s):  
Y. Maeda ◽  
H. Sakai ◽  
K. Fujita ◽  
M. B. Greenfield ◽  
K. Hatanaka ◽  
...  

1995 ◽  
Vol 581 (1) ◽  
pp. 93-106 ◽  
Author(s):  
M. Skill ◽  
R. Baumann ◽  
G. Keil ◽  
N. Kniest ◽  
E. Pfaff ◽  
...  

1980 ◽  
Vol 334 (1) ◽  
pp. 21-34 ◽  
Author(s):  
H. Berg ◽  
W. Arnold ◽  
E. Huttel ◽  
H.H. Krause ◽  
J. Ulbricht ◽  
...  

Author(s):  
Yuriy Volkotrub ◽  
Jacek Golak ◽  
Roman Skibiński ◽  
Kacper Topolnicki ◽  
Henryk Witała

We use a correlation matrix of two-nucleon (2N) potential parameters to investigate correlations among three-nucleon (3N) observables for the elastic nucleon-deuteron (Nd) scattering process. We employ the up-to-date 2N semilocal momentum-space regularized chiral interactions and the phenomenological OPE-Gaussian potential and using the Faddeev formalism we calculate 3N observables and their correlations. As an example, we present the correlation between the differential cross section and the deuteron analyzing power T_{20}T20.


1980 ◽  
Vol 93 (3) ◽  
pp. 258-261 ◽  
Author(s):  
E.G. Auld ◽  
R.R. Johnson ◽  
G. Jones ◽  
E.L. Mathie ◽  
P. Walden ◽  
...  

The differential cross section and polarization observables for the elastic reaction induced by deuteron scattering off electrons at rest, are calculated in the one-photon-exchange approximation. The following polarization observables were calculated: 1- the analyzing powers (asymmetries) due to the tensor polarization of the deuteron beam, 2 - the spin correlation coefficients caused by the arbitrarily polarized electron target and the vector polarized deuteron beam, 3 - the coefficients of the polarization transfer from the arbitrarily polarized target electron to the recoil electrons. The differential cross section and polarization observables have been expressed in terms of the deuteron electromagnetic form factors: (charge monopole), (magnetic dipole) and (charge quadrupole). Numerical estimations are given for the analyzing powers (asymmetries) due to the tensor polarization of the deuteron beam. They are calculated as functions of the deuteron beam energy for some values of the scattering angle (the angle between the deuteron beam and the recoil electron momenta). For the numerical calculation we use the existing phenomenological parametrization of the deuteron electromagnetic form factors. It turns out that the analyzing powers (asymmetries) are increasing with the growth of the deuteron beam energy and they have appreciable sensitivity to the value of the scattering angle. The specific interest of this reaction is to investigate the possibility to use this reaction for the measurement of the polarization of the high energy deuteron beams.


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