WJNST  Vol.2 No.4 , October 2012
Correlations in Nuclear Interactions between ECM/u and Unexplained Experimental Observables
Abstract: A new concept is introduced for the classification of “unresolved problems” in the understanding of interactions in thick targets irradiated with relativistic ions: The centre-of-mass energy per nucleon of a hypothetical compound nucleus from a primary interaction, ECM/u, is calculated and correlated with experimental observations in thick target irradia- tions. One observes in various reactions of relativistic primary ions with thick targets that there appears to be a thresh- old energy for reactions leading to “unresolved problems” which lies around ECM/u ~ 150 MeV. All “unresolved prob- lems” are exclusively observed above this threshold, whereas below this threshold no “unresolved problems” are found. A similar threshold at 158 ± 3 MeV exists for massive pion production in nuclear interactions. Hagedorn had proposed this threshold decades ago and it is known as the Hagedorn limit. In this paper we will only mention, but not elaborate on Hagedorn’s theoretical concept any further. Some considerations will be presented and further studies in this field are suggested.
Cite this paper: W. Westmeier, R. Brandt, R. Hashemi-Nezhad, R. Odoj, W. Ensinger, M. Zamani-Valasiadou and A. Sosnin, "Correlations in Nuclear Interactions between ECM/u and Unexplained Experimental Observables," World Journal of Nuclear Science and Technology, Vol. 2 No. 4, 2012, pp. 125-132. doi: 10.4236/wjnst.2012.24018.

[1]   R. Brandt, V. A. Ditlov, K. K. Dwivedi, W. Ensinger, E. Ganssauge, S.-L. Guo, M. Haiduc, S. R. Hashemi-Nezhad, H. A. Khan, M. I. Krivopustov, R. Odoj, E. A. Pozharova, V. A. Smirnitzki, A. N. Sosnin, W. Westmeier and M. Zamani-Valasiadou, “Interactions of Relativistic Heavy Ions in Thick Heavy Element Targets—and Some Unresolved Problems,” Physics of Elementary Particles and Nuclei, Vol. 39, No. 2, 2008, pp. 507-526 (original), reprinted in Physics of Particles and Nuclei, Vol. 39, No. 2, pp. 259-285. doi:1

[2]   S. R. Hashemi-Nezhad, M. Zamani-Valasiadou, M. I. Krivopustov, R. Brandt, W. Ensinger, R. Odoj and W. Westmeier, “Neutron Production in Thick Targets Irradiated with High Energy Ions,” Physics Research International, Vol. 2011, Article ID: 128429, 12 pages. doi:10.1155/2011/128429

[3]   G. Dersch, “Kernchemische Studien zum Anomalonenph?nomen bei Kernreaktionen mit Relativistischen Schwerionen,” PhD Dissertation, Philipps Universit?t, Marburg, 1986.

[4]   P. B. Price, “Overview of a Conference (23rd International Conference on SSNTDs, Beijing, September 2006),” Radiation Measurements, Vol. 43, 2008, pp. 662664.

[5]   R. C. Barber, H. G?ggeler, P. J. Karol, H. Nakahara, E. Vardaci and E. Vogt, “Discovery of the Element with Atomic Number 112 (IUPAP Technical Report),” Pure and Applied Chemistry, Vol. 81, No. 7, 2009, pp. 13311343. doi:10.1351/PAC-REP-08-03-05

[6]   I. Hartmann and R. Brandt, “Noise between ASAT and SAT,” In: Dr. P. Gschwind and B. Hugiweg, Eds., A Model for Nuclear Phenomena, Called Anomalons, Mathematisch-Physikalische Korrespondenz, Dornach, 2009, pp. 3-35.

[7]   E. R?ssle, E. Schopper, “Absorptionsanalyse der Sternausl?senden Komponenten der Ultrastrahlung,” Zeitschrift für Naturforschung Teil A, Vol. 9, 1954, pp. 837-851.

[8]   S. R. Hashemi-Nezhad, R. Brandt, W. Westmeier, V. P. Bamblevski, M. I. Krivopustov, B. A. Kulakov, A. N. Sosnin, J.-S. Wan and R. Odoj, “Monte Carlo Analysis of Accelerator Driven Systems: Studies on Spallation Neutron Yield and Energy Gain,” Kerntechnik, Vol. 66, No. 1-2, 2001, pp. 47-53

[9]   L. Lerman, “On the Symmetry of Nuclear Identity between Relativistic Primary and Secondary Nuclei,” PhD Dissertation, Philipps-Universit?t, Marburg, 2002.

[10]   M. Ochs, “Experimente zur Neutronenfreisetzung durch Spallationsreaktionen in Massiven Kupferund Bleitargets,” PhD Dissertation, Philipps-Universit?t, Marburg, 1997.

[11]   W. Westmeier, et al., (in preparation).

[12]   K. Aleklett, R. Brandt, G. Dersch, G. Feige, E. M. Friedlander, E. Ganssauge, G. Haase, D. C. Hoffmann, J. Herrmann, B. Judek, W. Loveland, P. L. McGaughey, N. T. Porile, W. Schulz and G. T. Seaborg, “Unusual Behaviour of Projectile Fragments Produced by the Interactions of Relativistic Ar Ions with Copper,” Physical Review C, Vol. 38, 1988, pp. 1658-1673 and Erratum: Physical Review C, Vol. 44, No. 1, 1991, p. 566. doi:10.1103/PhysRevC.44.566

[13]   M. Ochs, I. G. Abdullaev, J. Adam, J. C. Adloff, I. G. Bersina, V. Bradnova, R. Brandt, M. Bognitzki, V. S. Butsev, M. Debeauvais, K. K. Dwivedi, F. Fernandez, S.-L. Guo, M. I. Krivopustov, B. A. Kulakov, E.-J. Langrock, G. Modolo, R. Odoj, V. P. Perelygin, A. N. Premyshev, V. S. Pronskikh, Th. Schmidt, A. N. Sosnin, V. I. Stegailov, R. Sudowe, P. Vater, J.-S. Wan, M. Zamani and V. M. Tsoupko-Sitnikov, “SSNTD and Radiochemical Studies on the Transmutation of Nuclei Using Relativistic Ions,” Radiation Measur

[14]   D. B. Pelowitz, J. S. Hendricks, J. W. Durkee, M. R. James, M. L. Fensin, G. W. McKinney, S. G. Mashnik and L. S. Waters, “MXNPX 2.7A Extensions,” Report LA-UR-08-07182, Los Alamos National Laboratory, 2008.

[15]   R. Hagedorn, “Statistical Thermodynamics of Strong Interactions at High Energies,” Supplemento Al Nuovo Cimento, Vol. III, 1965, pp. 147-186.

[16]   E. M. Friedlander and H. H. Heckmann, “Relativistic Heavy Ion Collisions,” In: D. A Bromley, Ed., Heavy Ion Science, Plenum Press, New York, 1983.

[17]   R. Brandt, G. Dersch, E. M. Friedlander, G. Haase, W. S. Butsev, M. I. Krivopustov, B. A. Kulakov, E. Ganssauge, W. Schulz, E. J. Langrock and F. Pille, “Untersuchung des Anormalen Verhaltens Relativistischer Fragmente aus Schwerionenreaktionen (Russian),” Isotopenpraxis, Vol. 25, 1989, pp. 433-438.

[18]   R. Brandt, V. S. Butsev, H. H. Cui, G. Dersch, E. M. Friedlander, E. Ganssauge, G. Haase, M. Heck, M. I. Krivopustov, B. A. Kulakov, E.-J. Langrock and F. Pille, “Enhanced Production of 24Na by Wide-Angle Secondaries Produced in the Interaction of Relativistic Carbon Ions with Copper,” Physical Review C, Vol. 45, No. 3, 1992, pp. 1194-1208. doi:10.1103/PhysRevC.45.1194

[19]   G. Alexander, R. H. W. Johnston and C. O’Ceallaigh, “The Relative Frequencies of the Decay Modes of Positive K-Mesons and the Decay Spectra of Modes Kμ3, τ’ and Kβ,” Physics and Astronomy, Vol. 6, No. 3, 1957, pp. 478-500. doi:10.1007/BF02781355

[20]   E. Ganssauge, “Der Experimentelle Stand der AnomalonenForschung,” Annalen der Physik, 7, Folge, 11, 1987, pp. 202-246. and “The Experimental Status of the Anomalon Research,” Nuclear Tracks and Radiation Measurement, Vol. 15, No. 1-4, 1988, pp. 371-379. doi:10.1016/1359-0189(88)90169-0