Veneziano model for low-energy nucleon-nucleon phase-shifts and high-energy charge-exchange cross-sections

1973 ◽  
Vol 18 (3) ◽  
pp. 427-444 ◽  
Author(s):  
K. S. Stowe ◽  
D. Y. Wong
Keyword(s):  
Charge Exchange ◽  
Cross Sections ◽  
Energy Charge ◽  
Nucleon Nucleon ◽  
High Energy ◽  
Phase Shifts ◽  
Low Energy ◽  
Veneziano Model

Charge exchange reactions on medium and heavy mass targets at intermediate energies

2019 ◽  
Vol 35 (08) ◽  
pp. 2050045
Author(s):  
Pardeep Singh ◽  
Monika Singh ◽  
Neha Rani
Keyword(s):  
Charge Exchange ◽  
Cross Sections ◽  
Energy Charge ◽  
Impulse Approximation ◽  
Mass Region ◽  
Intermediate Energy ◽  
Exchange Reactions ◽  
Plane Wave Impulse Approximation ◽  
Text Type ◽  
Intermediate Energies

The nuclear isotopic structure can be understood easily via the intermediate-energy charge exchange reactions of (p, n) and [Formula: see text]He, [Formula: see text] type. In the current contribution, we present some results for charge exchange reactions induced by 3He on targets lying in mass region [Formula: see text] within the theoretical framework of plane wave impulse approximation (PWIA) and distorted wave impulse approximation (DWIA). Here, the recoil effects in PWIA have also been considered. Particularly, the angular distributions and the unit cross-sections have been calculated and compared with the available data. Further, the importance of inclusion of the exchange contribution in these reactions is also considered, which eventually enhance the matching with data.

Lorentz-Pole Model and Polarization in High-Energy Charge-Exchange Pion-Nucleon Scattering

1968 ◽  
Vol 175 (5) ◽  
pp. 1757-1761 ◽  
Author(s):  
N. G. Antoniou ◽  
S. R. Komy ◽  
C. D. Palev ◽  
M. Samiullah
Keyword(s):  
Charge Exchange ◽  
Energy Charge ◽  
High Energy ◽  
Pole Model ◽  
Nucleon Scattering ◽  
Pion Nucleon

Nucleon-antinucleon interaction in the new Tamm-Dancoff approximation

1960 ◽  
Vol 257 (1288) ◽  
pp. 59-73
Keyword(s):  
Integral Equation ◽  
Wave Function ◽  
Cross Sections ◽  
Nucleon Nucleon ◽  
Phase Shifts ◽  
Exchange Term ◽  
Total Cross Sections ◽  
Nucleon Wave Function ◽  
Usual Manner ◽  
Order Of Magnitude

The nucleon-antinucleon ( N-N ) problem is formulated in the new Tamm-Dancoff (NTD) approximation in the lowest order, and the integral equation for N-N̅ scattering derived, taking account of both the exchange and annihilation interactions. It is found convenient to represent the N-N̅ wave-function as a 4 x 4 matrix, rather than the usual 16 x 1 matrix for the nucleon-nucleon wave-function, and a complete correspondence is established between these two representations. The divergences associated with the annihilation interaction and their renormalization are discussed in detail in the following paper (Mitra & Saxena 1960; referred to as II). The integral equation with the exchange interaction alone, is then separated into eigenstates of T, J, L and S in the usual manner and the various phase shifts obtained. The results of II for the contribution of the annihilation term are then used to calculate the complete phase shifts from which the various cross-sections (scattering and charge exchange) are derived. The results indicate that while the exchange term alone gives too small values for the total cross-sections versus energy, inclusion of the annihilation interaction without renormalization effects makes the cross-sections nearly three times larger than those observed. On the other hand, inclusion of the finite effects of renormalization (which manifest themselves essentially as a suppression of the virtual meson propagator) brings down these cross-sections to the order of magnitude of the observed ones.

scholarly journals High-Energy Deuteron Cross Sections: Charge-Exchange Effects

1967 ◽  
Vol 156 (5) ◽  
pp. 1685-1697 ◽  
Author(s):  
R. J. Glauber ◽  
Victor Franco
Keyword(s):  
Charge Exchange ◽  
Cross Sections ◽  
High Energy ◽  
Exchange Effects
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