1. Chap. 19 in Shankar: Scattering theory
PHY 741 Quantum Mechanics
12-12:50 AM MWF Olin 103
Plan for Lecture 31:
Chap. 19 in Shankar: Scattering theory
Scattering cross section in terms of phase shifts
Optical theorem
Born approximation
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PHY 741 Fall Lecture 31

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4. Scattering geometry
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5. Some details:
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8. Imaginary part of forward scattering is proportional to the total scattering cross section.
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PHY 741 Fall Lecture 31

9. The phase shift analysis of scattering theory provides a convenient mechanism to relate experiment to the interaction potential
Example --
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PHY 741 Fall Lecture 31

10. This minimum in s is not seen in e-He and e-Ne scattering.
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PHY 741 Fall Lecture 31

11. Approximate treatment of scattering – Born approximation
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14. Example – screened Coulomb interaction
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15. Example – screened Coulomb interaction -- continued
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PHY 741 Fall Lecture 31

16. Example – spherical well
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PHY 741 Fall Lecture 31

17. Example – spherical well – continued
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PHY 741 Fall Lecture 31

18. Beyond the Born approximation
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PHY 741 Fall Lecture 31