Rudolf Martin (Tino) Ahrens
Professor Emeritus

 

Ph.D. in Physics, Washington University, St. Louis 1952
A.B. in Physics, Washington University, St. Louis, 1949
Heidelberg University, Germany, 1946-47

EMail: tinoahrens [at] gmail.com

 

■ Notable Publications■

T. Ahrens and E. Feenberg, First Forbidden Beta-Decay Matrix Elements, Phys. Rev. 86, 64 (1952)

T. Ahrens, C. P. Frahm  and B. D. Quang, On the Existence of Weakly Interacting Charge Retention Currents, Nuc. Phys. 78, 641 (1966)

Tino Ahrens and Lawrence Gallaher, Cross-Section Calculations for

ν̅ + d → n + p + ν̅ , Phys. Rev. D 20, 2714 (1979)

■ Research Interests■

Symmetries and Group Theory, Weak Interactions, Reactors and Shielding, Electromagnetism, Relativity and Gravitation

■ Publications ■

1. “First-Forbidden Beta-Decay Matrix Elements”, with E. Feenberg, Phys. Rev. 86, 54 (1952).

2. “First-Forbidden Beta Transitions”, Phys. Rev. 86, 609A (1952)
   

3. “Pseudoscalar Interaction in the Theory of Beta-Decay”, with E. Feenberg and H. Primakoff, Phys. Rev. 87, 663 (1952)

4. “Pseudoscalar Interaction in the Theory of Beta-Decay II”, Phys. Rev. 90, 974 (1953). The research leading to these four publications was assisted by the Joint Program of the ONR and AEC 

5. “Note on a Green's Function Treatment of the Two-Group-Method”, J. of Reactor Science a. Technology (Sept. 15, 1953). Declassified.
   

6. “Estimating Differential Scattering-Cross-Sections in Gases”, J. of Appl. Phys. 25, 505 (1954)
   

7. “Matrix Element Relations in Beta-Decay Theory and Nuclear Forces”, Phys. Rev. 100, 974A (1955)
   

8. “The Possibility of Interpreting Beta-Decay Spectra in Terms of Nuclear Forces”, with M. M. Miller, Phys, Rev 100, 974A (1955)
   

9. “Nuclear Matrix Element Relations in the Fermi Theory of Beta-Decay”, Progress of Theoret. Phys. 18, 381 (1957)
   

10. “The Aether Concept versus Special Relativity”, Am. J. of Phys. 30, 34 (1962)
    

11. “Some Input Functions of Transport Theory for Anisotropic Neutron Scattering”, with W. M. Pritchard, Nuc. Science a. Engineering, 22, 248 (1965)

12. “Weak Interactions as Determined by Permutation Symmetry in Iso-Space”, Progress of Theoret. Phys. 34, 867 (1965). Supported by NSF.

13. “On the Existence of Weakly Interacting Charge-Retention Currents”, with C. P. Frahm and B. D. Quang, Nuc. Phys. 78, 641 (1966). Supported by NSF

14. “Cross-Section Computations for Charge-Retention Scattering of High Energy Neutrinos”, Il Nuovo Cim. 43A, 1158 (1966)
    

15. “Special Permutation Invariants of Four SU3 Octets”, Phys. Rev. 157, 1458 (1967). Supported by NSF
    

16. “Weak Charge-Retention Processes and CP-Nonconservation”, Il Nuovo Cim. 69A, 444 (1970)

17. “Deuteron Disintegration, Neutral Currents and Antineutrino Spectra from Fission, with T. P. Lang, Phys. Rev. 3, 979 (1971)
    

18. “The Weak Neutral Current: A Reactor Neutrino Experiment to Determine the Axial Vector Coupling Constant”, with T. P. Lang, principal author, F. T. Avignone, S. M. Blankenship, D. S. Harmer, J. R. House and M. H. Wood,  Neutrinos 78, Proceedings of the International Conference on Neutrino Physics and Astrophysics, Purdue University, edited by E. C. Fowler, Purdue University
    Press, West Lafayette, Indiana (1978).Supported by NSF
    

19. “Cross-Section Calculations for ν̅ + d → n + p + ν̅ “, with Lawrence Gallaher, Phys. Rev. D, 2714 (1979). Supported by NSF
    

20. “Lorentz Invariance, the Approach to Helicity, and Gauge Transformations for Spin-1”, Interntl. J. of Theoret. Phys. 23, No. 2, 185 (1984).

21. “Group Theoretic Derivation of Equations for Massive and Massless Spin-One and Spin-One-Half Fields”, Il Nuovo Cim. 98A, 25 (1987)
    

22. “On a Generalization of the Weyl Equations”, Nuc. Phys. B  (Proc. Suppl.) 6, 124 (1989). Supported by the Eppley Foundation for Research.

23. “Massive Photons and Monopoles”, Bell's Theorem, Quantum Theory and Conceptions of the Universe”, 223, M. Kafatos, editor, Kluwer Academic Publishers (1989)

24. “Are Massive Photons and Monopoles Mutually Exclusive ?” Il Nuovo Cim. 103A, 1139 (1990) The last two publications were supported by the Eppley Foundation for Research and the Georgia Tech Foundation.

Selected List of Reports under Government Contract :

1. “Radiation Effects Reactor Safeguards”, Lockheed Aircraft Corporation, Marietta, Georgia, for the U.S.A.F. (January 1958).
2. "Research Memorandum NR1-B and NR1-C”, with R. W. King, Advanced Research Corp., West Lafayette, Indiana (1962). "Weak Neutral Current Experiments: the Excitation of Fluorine 19 and the Disintegration of the Deuteron.”
3. “Bremsstrahlung Production Cross-Sections for Shielding against Electrons in Space”, Advanced Research Corp., Atlanta. For Marshall Space Flight Center, NAS-11083 (May 1965)

Prizes:          

“Monie A. Ferst Research Award for Faculty”, 1st prize, Ga Tech 1971

Books Published:

1. “From Dirac to Neutrino Oscillations”, Kluwer Academic Publishers, Boston/ Dortrecht/London, 2000
2. “Twelve Years”, Author House, Bloomington, Indiana, 2008    

 

■ Employment History■

• Senior Engineer. Reactors and Shielding, CONVAIR, Ft. Worth, Texas, 1952-54
• Lecturer, Texas Christian University, Ft. Worth and Southern Methodist University, Dallas, Texas
• Staff Specialist. Shielding and Operations Research, Lockheed, Marietta, Georgia, 1954-55
• Staff Scientist. Reactors, Shielding and Aircraft Performance, Lockheed, Burbank, California, 1955-56
• Manager, Nuclear Analysis Department. Applied Nuclear Physics Group, Radiation Control Group and Mathematical Support Group, Lockheed, Marietta, Georgia, 1956-57
• Associate Professor of Physics, Georgia Institute of Technology, 1957-66
• Visiting Scientist, Max Planck Institut fur Physik, Munich, 1959-60, Research Advisor: Werner Heisenberg
• Vice President, Advanced Research Corporation, West Lafayette, Indiana and Atlanta, 1962-64
• Consultant, Advanced Research Corporation, Atlanta, 1964-71
  
• Professor of Physics, Georgia Institute of Technology, 1966-92, Emeritus 1992
• Visiting Professor, University of South Carolina, 1967-68
• Visiting Professor, Frankfurt University., Frankfurt, West Germany, 1978