Charge Exchange Cross Sections of Hydrogen Particles in Gases at High Energies

Born’s approximation has been used to calculate total elastic and inelastic cross-sections and angular distributions for the scattering of neutrons by deuterons at incident energies of 100, 200 and 300 MeV. The nuclear potential has been taken to be a mixture of central and non-central interactions of the type √ 12 = I 12 (1 - 1/2 g + 1/2 g σ 1 σ 2 + γS 12 ) V(r) , where S 12 = r -2 3σ 1 . rσ 2 . r-σ 1 . σ 2 . Four types of isotopic factor I 12 , giving exchange properties of the neutral, charge exchange, symmetrical and Serber theories, have been investigated. The effect on the scattering of including the D wave of the ground state of the deuteron has been estimated.

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Application of the two state approximation to positronium formation in hydrogen

Canadian Journal of Physics ◽

10.1139/p77-179 ◽

1977 ◽

Vol 55 (16) ◽

pp. 1393-1398 ◽

Cited By ~ 7

Author(s):

V. S. Kulhar ◽

C. S. Shastry

Keyword(s):

Charge Exchange ◽

Cross Sections ◽

Energy Region ◽

Hydrogen Charge ◽

Time Dependent ◽

Quantum Mechanical ◽

High Energies ◽

Mechanical Formalism ◽

State Approximation ◽

Quantum Mechanical Formalism

A generalized form of Band's theory for rearrangement collisions based on the two state approximation in time dependent quantum-mechanical formalism is used to investigate the positron hydrogen charge exchange problem. The formalism takes into account the nonorthogonality of the rearrangement channel. The effect of nonorthogonality is to raise the cross sections from first Born results. At high energies our results approach Born results. Comparison with other calculations is also reported in the energy region 1.5 to 10 Ry.

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Pion-nucleon scattering at high energies

Proceedings of the Royal Society of London Series A - Mathematical and Physical Sciences ◽

10.1098/rspa.1966.0028 ◽

1966 ◽

Vol 289 (1419) ◽

pp. 500-508 ◽

Cited By ~ 5

Keyword(s):

Experimental Data ◽

Cross Section ◽

Charge Exchange ◽

Cross Sections ◽

Scattering Amplitude ◽

Forward Scattering Amplitude ◽

Nucleon Scattering ◽

Total Cross Sections ◽

High Energies ◽

Pion Nucleon

The charge exchange forward scattering amplitude 1.1 1.2 using an interpolation of the total cross sections which includes the results presented by Dr Galbraith at this meeting. From F (-) follows a prediction for the charge exchange forward cross section (c.m. system) 1.3 which will be compared with the experimental data including those presented by Dr Falk-Vairant and Dr Guerriero.

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

Modern Physics Letters A ◽

10.1142/s0217732320500455 ◽

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.

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