Holger Frits Bech Nielsen

Holger Frits Bech Nielsen

Emeritus


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  1. Published

    Diphoton decay of the Higgs boson and new bound states of top and antitop quarks

    Froggatt, C. D., Das, C. R., Laperashvili, L. V. & Nielsen, Holger Frits Bech, 30 Jul 2015, In: International Journal of Modern Physics A. 30, 21, 1550132.

    Research output: Contribution to journal › Journal article › Research › peer-review

  2. Published

    Dark energy density in SUGRA models and degenerate vacua

    Froggatt, C. D., Nielsen, Holger Frits Bech, Nevzorov, R. & Thomas, A. W., 20 Jun 2017, In: International Journal of Modern Physics A. 32, 17, 1730013.

    Research output: Contribution to journal › Journal article › Research › peer-review

  3. Published

    Dark matter balls help supernovae to explode

    Froggatt, C. D. & Nielsen, Holger Frits Bech, 30 Nov 2015, In: Modern Physics Letters A. 30, 36, 1550195.

    Research output: Contribution to journal › Journal article › Research › peer-review

  4. Published

    On the smallness of the cosmological constant in SUGRA models inspired by degenerate vacua

    Froggatt, C. D., Nevzorov, R. & Nielsen, Holger Frits Bech, 2009, 17th International Conference on Supersymmetry and  the Unification of Fundamental Interactions (SUSY 09). American Institute of Physics, Vol. 09.

    Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

  5. Published

    Tunguska dark matter ball

    Froggatt, C. D. & Nielsen, Holger Frits Bech, 10 May 2015, In: International Journal of Modern Physics A. 30, 13, 1550066.

    Research output: Contribution to journal › Journal article › Research › peer-review

  6. Published

    On the origin of approximate custodial symmetry in the Two-Higgs Doublet Model

    Froggatt, C. D., Nevzorov, R., Nielsen, Holger Frits Bech & Thompson, D., 10 Dec 2009, In: International Journal of Modern Physics A. 24, 30, p. 5587-5637 50 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  7. Published

    Predicting the SUSY breaking scale in SUGRA models with degenerate vacua

    Froggatt, C. D., Nevzorov, R., Nielsen, Holger Frits Bech & Thomas, A. W., 4 Feb 2020, In: International Journal of Modern Physics A. 35, 1, 14 p., 2050007.

    Research output: Contribution to journal › Journal article › Research › peer-review

  8. Published

    Fermion Masses and the Standard Model Group as a Diagonal Subgroup

    Froggatt, C. D., Lowe, G. & Nielsen, Holger Frits Bech, 1994, In: Nucl. Phys.. B420, p. 3-46

    Research output: Contribution to journal › Journal article › Research

  9. Published

    Neutrino Masses and Mixings from an Anormaly Free SMG X U(!)**2 Model

    Froggatt, C. D., Gibson, M. & Nielsen, Holger Frits Bech, 1999, In: Physics Letters B. Vol. 446, p. 256-266

    Research output: Contribution to journal › Journal article › Research › peer-review

  10. Published

    Origin of symmetries (Monograph)

    Froggatt, C. D. & Nielsen, Holger Frits Bech, 1991, Singapore.

    Research output: Book/Report › Book › Research

  11. Published

    Cosmological constant in SUGRA models and the multiple point principler

    Froggatt, C. D., Laperashvili, L. V., Nevzorov, R. & Nielsen, Holger Frits Bech, 2004, In: Physics of Atomic Nuclei. 67, 3, p. 582-589

    Research output: Contribution to journal › Journal article › Research › peer-review

  12. Published

    Anti-Grand Unification and the Fermion Mass Problem

    Froggatt, C. D., Lowe, G. & Nielsen, Holger Frits Bech, 1994, In: Nucl. Phys.. B414, p. 579-593

    Research output: Contribution to journal › Journal article › Research

  13. Published

    A natural solution to the neutrino mixing problem

    Froggatt, C. D., Gibson, M. I. & Nielsen, Holger Frits Bech, 1998, In: Physics Letters B. 409, 1-4, p. 305-312

    Research output: Contribution to journal › Journal article › Research › peer-review

  14. Published

    The Level Crossing Phenomenon with Yukawa Interactions

    Froggatt, C. D., Lowe, G. & Nielsen, Holger Frits Bech, 1994, In: Nucl. Phys.. B414, p. 53-72

    Research output: Contribution to journal › Journal article › Research

  15. Published

    Hierarchy-problem and a bound state of 6 t and 6 anti- t

    Froggatt, C. D., Nielsen, Holger Frits Bech & Laperashvili, L. V., 2005, In: International Journal of Modern Physics A. 20, 6, p. 1268-1275

    Research output: Contribution to journal › Journal article › Research › peer-review

  16. Published

    The fundamental-electroweak scale hierachy standard model

    Froggatt, C., Laperashvili, L. V. & Nielsen, Holger Frits Bech, 2006, In: Physics of Atomic Nuclei. 69, 1, p. 67-80

    Research output: Contribution to journal › Journal article › Research › peer-review

  17. Published

    Implementation of the multiple point in the two-Higgs doublet model of type ll

    Froggatt, C., Laperashvili, L., Nevzorov, R., Nielsen, Holger Frits Bech & Sher, M., 2006, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 73, 9, p. 095005

    Research output: Contribution to journal › Journal article › Research › peer-review

  18. Published

    Fixed point scenario in the two Higgs doublet model inspired by degenrate vacua

    Froggatt, C., Nevzorov, R. & Nielsen, Holger Frits Bech, 2008, In: Physics Letters B. 657, 1-3, p. 95-102

    Research output: Contribution to journal › Journal article › Research › peer-review

  19. Published

    Cosmological Constant in SUGRA Models with Degenerate Vacua

    Froggatt, C., Nielsen, Holger Frits Bech, Nevzorov, R. & Thomas, A., 22 Oct 2019, In: Universe. 5, 10, 15 p., 214.

    Research output: Contribution to journal › Journal article › Research › peer-review

  20. Published

    Dirac sea and hole theory for bosons II: renormalization approach

    Habara, Y., Nagatani, Y., Nielsen, Holger Frits Bech & Ninomiya, M., 2008, In: International Journal of Modern Physics A. 23, 18, p. 2771-2781

    Research output: Contribution to journal › Journal article › Research › peer-review

  21. Published

    Dirac sea and hole theory for bosons I: a new formulation of quantum field theories

    Habara, Y., Nagatani, Y., Nielsen, Holger Frits Bech & Ninomiya, M., 2008, In: International Journal of Modern Physics A. 23, 18, p. 2733-2769

    Research output: Contribution to journal › Journal article › Research › peer-review

  22. Published

    Dirac sea for bosons also and SUSY for single particles

    Habara, Y., Nielsen, Holger Frits Bech & Ninomiya, M., 2006, In: Progress of Theoretical Physics. Supplement. p. 68-81

    Research output: Contribution to journal › Conference article › Research › peer-review

  23. Published

    Supersymmetric relativistic quantum mechanics

    Habara, Y., Nielsen, Holger Frits Bech & Ninomiya, M., 2006, In: International Journal of Modern Physics A. 21, 6, p. 1333-1340

    Research output: Contribution to journal › Journal article › Research › peer-review

  24. Published

    Physical account of Weyl anomaly from Dirac Sea

    Habara, Y., Nielsen, Holger Frits Bech & Ninomiya, M., 10 Sep 2015, In: International Journal of Modern Physics A. 30, 25, 1550147.

    Research output: Contribution to journal › Journal article › Research › peer-review

  25. Published

    QED with unequal charges. A study of spontaneous Zn symmetry breaking

    Hansson, T. H., Nielsen, Holger Frits Bech & Zahed, I., 1995, In: Nucl. Phys.. B 451, p. 162-173

    Research output: Contribution to journal › Journal article › Research

  26. Published

    Lattice Chern-Simons Gavity via Ponzano-Regge Model

    Kawamoto, N., Nielsen, Holger Frits Bech & Sato, N., 1999, In: Nucl. Phys. B. Vol. 555, p. 629-649

    Research output: Contribution to journal › Journal article › Research › peer-review

  27. Published

    Standard model and graviweak unification with (super) renormalizable gravity. Part I: Visible and invisible sectors of the universe

    Laperashvili, L. V., Nielsen, Holger Frits Bech & Tureanu, A., 30 Mar 2015, In: International Journal of Modern Physics A. 30, 9, 1550044.

    Research output: Contribution to journal › Journal article › Research › peer-review

  28. Published

    New results at LHC confirming the vacuum stability and Multiple Point Principle

    Laperashvili, L. V., Nielsen, Holger Frits Bech & Das, C. R., 20 Mar 2016, In: International Journal of Modern Physics A. 31, 8, 1650029.

    Research output: Contribution to journal › Journal article › Research › peer-review

  29. Published

    'Effective two dimensionality' cases bring a new hope to the Kaluza-Klein(like) theories

    Lukman, D., Borstink, N. S. & Nielsen, Holger Frits Bech, 21 Oct 2011, In: New Journal of Physics. 13, p. 103027

    Research output: Contribution to journal › Journal article › Research › peer-review

  30. Published

    How to generate families of spinors

    Manko'c Bors'tnik, N. & Nielsen, Holger Frits Bech, 2003, In: Journal of Mathematical Physics. 44, 10, p. 4817-4827

    Research output: Contribution to journal › Journal article › Research › peer-review

  31. Published

    Formulation of Complex Action Theory

    Nagao, K. & Nielsen, Holger Frits Bech, 1 Dec 2011, In: Progress of Theoretical Physics. 126, 6, p. 1021-1049

    Research output: Contribution to journal › Journal article › Research › peer-review

  32. Published

    Theory including future not excluded: Formulation of complex action theory II

    Nagao, K. & Nielsen, Holger Frits Bech, 4 Feb 2013, In: Progress of Theoretical and Experimental Physics. 2013, 2, p. 023B04

    Research output: Contribution to journal › Journal article › Research › peer-review

  33. Published

    Theory including future not excluded: Formulation of complex action theory II (vol 2013, 023B04, 2013)

    Nagao, K. & Nielsen, Holger Frits Bech, 1 Mar 2018, In: Progress of Theoretical and Experimental Physics. 2018, 3, 039201.

    Research output: Contribution to journal › Journal article › Research › peer-review

  34. Published

    Formalism of a harmonic oscillator in the future-included complex action theory

    Nagao, K. & Nielsen, Holger Frits Bech, Jul 2019, In: Progress of Theoretical and Experimental Physics. 2019, 7, 36 p., 073B01.

    Research output: Contribution to journal › Journal article › Research › peer-review

  35. Published

    Momentum relation and classical limit in the future-not-included complex action theory

    Nagao, K. & Nielsen, Holger Frits Bech, 1 Jul 2013, In: Progress of Theoretical and Experimental Physics. 2013, 7, 073A03.

    Research output: Contribution to journal › Journal article › Research › peer-review

  36. Published

    Complex action suggests future-included theory

    Nagao, K. & Nielsen, Holger Frits Bech, 23 Nov 2017, In: Progress of Theoretical and Experimental Physics. 2017, 11, 111B01.

    Research output: Contribution to journal › Journal article › Research › peer-review

  37. Published

    Automatic hermiticity for mixed states

    Nagao, K. & Nielsen, Holger Frits Bech, 9 Mar 2023, In: Progress of Theoretical and Experimental Physics. 2023, 3, 11 p., 031B01.

    Research output: Contribution to journal › Journal article › Research › peer-review

  38. Published

    Momentum and hamiltonian in complex action theory

    Nagao, K. & Nielsen, Holger Frits Bech, 2012, In: International Journal of Modern Physics A. 27, 14, p. 1250076 30 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  39. Published

    Erratum: Momentum and Hamiltonian in complex action theory (vol 27, 1250076, 2012)

    Nagao, K. & Nielsen, Holger Frits Bech, 20 Nov 2017, In: International Journal of Modern Physics A. 32, 32, 1792003.

    Research output: Contribution to journal › Journal article › Research › peer-review

  40. Published

    Automatic Hermiticity

    Nagao, K. & Nielsen, Holger Frits Bech, 1 Mar 2011, In: Progress of Theoretical Physics. 125, 3, p. 633-640

    Research output: Contribution to journal › Journal article › Research › peer-review

  41. Published

    Reality from maximizing overlap in the periodic complex action theory

    Nagao, K. & Nielsen, Holger Frits Bech, 18 Aug 2022, In: Progress of Theoretical and Experimental Physics. 2022, 9, 11 p., 091B01.

    Research output: Contribution to journal › Journal article › Research › peer-review

  42. Published

    Reality and hermiticity from maximizing overlap in the future-included complex action theory

    Nagao, K. & Nielsen, Holger Frits Bech, May 2015, In: Progress of Theoretical and Experimental Physics. 2015, 5, 051B01.

    Research output: Contribution to journal › Journal article › Research › peer-review

  43. Published

    Minimal Mixing of Quarks and Leptons in the SU(3) Theory of Flavour

    Nielsen, Holger Frits Bech, 2002, In: Nucl. Phys.. vol. B 626, p. 307

    Research output: Contribution to journal › Journal article › Research › peer-review

  44. Published

    Neutrino Mass Matrix Suppression by Abelian Charges with See-saw Mechanism

    Nielsen, Holger Frits Bech & Takanishi, Y., 2000, In: Nucl. Phys.. B588, p. 281

    Research output: Contribution to journal › Journal article › Research › peer-review

  45. Published

    Bicarbonate attenuates intracellular acidosis

    Nielsen, Holger Frits Bech, Hein, L., Svendsen, L. B., Secher, N. H. & Quistorff, B., 2002, In: Acta Anaesthesiologica Scandinavica. vol. 46, p. 579-584

    Research output: Contribution to journal › Journal article › Research › peer-review

  46. Published

    Baryogenesis via Lepton Number Violation in Anti-Gut Model

    Nielsen, Holger Frits Bech & Takanishi, Y., 2001, In: Phys. Lett.. B507, p. 241-251

    Research output: Contribution to journal › Journal article › Research › peer-review

  47. Published

    Nonexistence of irreversible processes in compact space-time

    Nielsen, Holger Frits Bech & Ninomiya, M., 2008, In: International Journal of Modern Physics A. 22, 32, p. 6227-6241

    Research output: Contribution to journal › Journal article › Research › peer-review

  48. Published

    Electron-electron interactions in the two dimensional electron gas in silicon

    Nielsen, Holger Frits Bech, Kravchenko, S. V., Caulfield, J. M., Singleton, S. & Pudalov, V. M., 1993, In: Physical Review B. Condensed Matter and Materials Physics. 47, p. 12961-12963

    Research output: Contribution to journal › Journal article › Research

  49. Published

    Why Do We Live in 3+1 Dimensions?

    Nielsen, Holger Frits Bech & Rugh, S. E., 1993, Proc. of the XXVI Int.Symp. Ahrenshoop on the Theory of Elementary Particles. DESY-Zeuthen, p. 307-337

    Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research

  50. Published

    Law behind second law of theromodynamics unification with cosmology

    Nielsen, Holger Frits Bech & Ninomiya, M., 2006, In: Journal of High Energy Physics (Online). 3, 057

    Research output: Contribution to journal › Journal article › Research › peer-review

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