Martin Schumacher Professor (i.R.) at the University of Göttingen
e-mail: mschuma3@gwdg.de; alias: martin.schumacher@phys.uni-goettingen.de
II. Physikalisches Institut der Universität
Friedrich-Hund-Platz 1
D-37077 Göttingen
1964 - 1984: Experimental research in nuclear physics, atomic physics, and quantum electrodynamics. The experimental work was carried out in Göttingen, Philadelphia (USA), Grenoble (France), Mol (Belgium), Jülich, and Karlsruhe.
Overview: "The present status of Delbrück scattering" A.I. Milstein and M. Schumacher Physics Reports 243 (1994) 183. "Compton scattering by nuclei" M.-Th. Hütt, A.I. L'vov, A.I. Milstein, M. Schumacher, Physics Reports 323 (2000) 457.
1984 - 2002: Experimental research in low-energy particle physics at the high duty-factor electron accelerators in Mainz, Bonn, and Lund (Sweden).
Overview: "Perspectives on Photon Interactions with Hadrons and Nuclei" Proceedings, Göttingen conference 1990, M. Schumacher, G. Tamas (Eds.) Lecture Notes in Physics 365. Springer Verlag. "Polarizability of the Nucleon and Compton Scattering" Martin Schumacher, Prog. Part. Nucl. Phys. 55 (2005) 567.
From 2002: Theoretical studies on Compton scattering by the nucleon and related processes. Structure of the constituent quark and its relevance for the fundamental structure constants of the nucleon and the structure of the nucleon.
Recent publications:
[1] "Structure of the σ-meson and diamagnetism of the nucleon", M.I. Levchuk, A.I. L'vov, A.I. Milstein, M. Schumacher, Proceedings of the Workshop on the Physics of Excited Nucleons, NSTAR 2005, p. 389; arXiv:hep-ph/0511193.
[2] "Electromagnetic polarizabilities of the nucleon and properties of the σ-meson pole contribution" Eur. Phys. J. A 30, 413 (2006);ERRATUM: Eur. Phys. J. A 32, 121 (2007); [hep-ph/0609040].
[3] "Electromagnetic polarizabilities and the excited states of the nucleon" Eur. Phys. J. A 31, 327 (2007) [hep-ph/0704.0200].
[4] "Properties of the π0, η, η', σ, f0(980) and a0(980) mesons and their relevance for the polarizabilities of the nucleon" M. Schumacher, Eur. Phys. J. A 34, 293 (2007) [ hep-ph/0712.1417].
[5] "Scalar mesons and polarizabilities of the nucleon" M. Schumacher, AIP Conference Proceedings 1030, 129 (2008), arXiv:0803.1074 [hep-ph].
[6] "Note on the magnetic moment of the nucleon" M. Schumacher, arXiv:0805.2823 [hep-ph].
[7] "Polarizabilities of the nucleon and spin dependent photo-absorption" M. Schumacher, Nucl. Phys. A 826 (2009) 131, arXiv:0905.4363 [hep-ph].
[8] "Observation of the Higgs Boson of strong interaction via Compton scattering by the nucleon" M. Schumacher, Eur. Phys. J. C 67, 283 (2010), arXiv:1001.0500 [hep-ph].
[9] "Structure of the nucleon and spin-polarizabilities" Martin Schumacher, M.I. Levchuk, Nucl. Phys. A 858 (2011) 48-66, doi:10.1016/j.nuclphys.2011.04.002; arXiv:1104.3721 [hep-ph].
[10] "Structure of scalar mesons and the Higgs sector of strong interaction" Martin Schumacher, Journal of Physics G: Nucl. Part. Phys. 38 (2011) 083001; arXiv:1106.1015 [hep-ph]
[11] "Conference Report: Structure of scalar mesons and the Higgs sector of strong interaction" Martin Schumacher, XIV International Conference on Hadron Spectroscopy, Munich, Germany 13 - 17 June 2011, arXiv:1107.4226 [hep-ph]
[12] "Dispersion theory of nucleon Compton scattering and polarizabilities" Martin Schumacher , Michael D. Scadron, Fortschr. Phys. 61, 703 (2013), arXiv:1301.1567 [hep-ph]
[13] "Dispersion theory of nucleon polarizabilities and outlook on chiral effective field theory", Martin Schumacher, arXiv:1307.2215 [hep-ph].
[14] "Nambu's Nobel Prize, the meson and the mass of visible matter", Martin Schumacher, Ann. Phys. (Berlin) 526, 215 (2014), arXiv:1403.7804 [hep-phys].
[15] "Mass generation via the Higgs boson and the quark condensate of the QCD vacuum" Martin Schumacher, PRAMANA - J. Phys. (2016) 87:44;arXiv:1506.00410 [hep-ph].