Available Publications:

	F. Kleefeld:
	On a new unitarization scheme inspired by Dalitz and Tuan applied to meson-meson and meson-baryon scattering
	hep-ph/0511096
	PoS(HEP2005)108
	Internal preprint number: FK-2005-8
	Proceedings of the HEP2005 Int. Europhysics Conf. on High Energy Physics, 21.-27.7.2005, Centro Cultural de Belém, Lisbon, Portugal
	F. Kleefeld:
	Coulomb-scattering and eta-eta' mixing angle
	nucl-th/0510017
	Acta Physica Slovaca 56 (2006) 373-380
	Internal preprint number: FK-2005-5
	Proceedings of the Eta'05 Workshop on "Production and Decay of eta and eta' Mesons" of the European Research Network "EtaMesonNet", 16.-18.9.2005, Collegium Maius, Krakow, Poland
	F. Kleefeld:
	Kurt Symanzik: a stable fixed point beyond triviality
	hep-th/0506142
	J. Phys. A: Math. Gen. 39 (2006) L9-L15
	Internal preprint number: FK-2005-3
	F. Kleefeld:
	On (non-hermitian) Lagrangeans in (particle) physics and their dynamical generation
	hep-th/0506140
	Czech. J. Phys. 55 (2005) 1123-1134
	Proceedings of the 3rd Int. Workshop on "Pseudo-Hermitian Hamiltonians in Quantum Physics", 19.-23.6.2005, Koç University, Instambul, Turkey
	Internal preprint number: FK-2005-2
	E. van Beveren, F. Kleefeld, G. Rupp:
	Images in Christmas Balls
	physics/0503069
	Eur. J. Phys. 27 (2006) 337-346
	Internal preprint number: FK-2005-1
	G. Rupp, F. Kleefeld, E. van Beveren:
	Scalar Mesons and Adler Zeros
	hep-ph/0412078
	AIP Conf. Proc. 756 (2005) pp. 360-362
	Proceedings of 6th Int. Conf. on "Quark Confinement and the Hadron Spectrum VI 2004", 21.-25.9.2004, Tanka Village, Villasimius (Cagliari) Sardinia, Italy
	Internal preprint number: FK-2004-5
	Vít Jakubský, Miloslav Znojil, Euclides Augusto Luís, Frieder Kleefeld:
	Trigonometric identities, angular Schrödinger equations and a new family of solvable models
	quant-ph/0410023
	Phys. Lett. A 334 (2005) 154-159
	Internal preprint number: FK-2004-4
	F. Kleefeld:
	The Light and Heavy Scalars in Unitarized Coupled Channel and Lagrangian Approaches
	hep-ph/0310320
	AIP Conf. Proc. 717 (2004) pp. 332-336
	Proceedings of 10th International Conference on "Hadron Spectroscopy" (HADRON '03), 31.8.-6.9.2003, Aschaffenburg, Germany
	Internal preprint number: FK-2003-4
	M.D. Scadron, F. Kleefeld, G. Rupp, E. van Beveren:
	Meson Form Factors in the Quark-Based Linear Sigma Model
	Fizika B 13 (2004) pp. 43-56
	Internal preprint number: FK-2004-2
	F. Kleefeld:
	On Symmetries in (Anti)Causal (Non)Abelian Quantum Theories
	hep-th/0310204
	pp. 1367 - 1374 in Part 3 (ISBN 966-02-3227-6) of Volume 50 (ISBN 966-02-3224-1) of Proceedings of Institute of Mathematics of NAS of Ukraine, Editors A.G. Nikitin, V.M. Boyko, R.O. Popovych and I.A.Yehorchenko, Kyiv, Institute of Mathematics, 2004;
	Proceedings of 5th International Conference on "Symmetry in Nonlinear Mathematical Physics", 23.-29.6.2003, Institute of Mathematics, National Academy of Sciences of Ukraine, Kyiv (Kiev), Ukraine
	Internal preprint number: FK-2003-3
	M.D. Scadron, G. Rupp, F. Kleefeld, E. van Beveren:
	Ground-State Scalar \bar{q}q Nonet: SU(3) Mass Splittings and Strong, Electromagnetic, and Weak Decay Rates
	hep-ph/0309109
	Phys. Rev. D 69 (2004) 014010; Erratum-ibid.: Phys. Rev. D 69 (2004) 059901 (E)
	Internal preprint number: FK-2003-2
	M.D. Scadron, G. Rupp, E. van Beveren, F. Kleefeld:
	SU(3) Mass Splittings for \bar{q}q Mesons and qqq Baryons
	hep-ph/0307003
	AIP Conf. Proc. 688 (2003) pp. 183-190
	Proceedings of High Energy Physics Workshop on "Scalar Mesons: an Interesting Puzzle for QCD", 16.-18.5.2003, SUNY Institute of Technology, Utica, New York, USA
	Internal preprint number: FK-2003-1
	F. Kleefeld:
	Does it make any sense to talk about a Delta-isobar?
	nucl-th/0212008
	Few-Body Systems Suppl. 15 (2003) pp. 201-206
	Proceedings of 2002 CFIF Fall Workshop on "Nuclear Dynamics: from Quarks to Nuclei", 31.10.-2.11.2002, CFIF, IST, Lisboa, Portugal
	Internal preprint number: FK-2002-5
	M.D. Scadron, F. Kleefeld, G. Rupp, E. van Beveren:
	Meson Form Factors and the Quark-Level Linear Sigma Model
	hep-ph/0211275
	Nucl. Phys. A 724 (2003) pp. 391-409
	Internal preprint number: FK-2002-2
	E. van Beveren, G. Rupp, N. Petropoulos, F. Kleefeld:
	The light scalar mesons within quark models
	hep-ph/0211411
	AIP Conf. Proc. 660 (2003) pp. 353-366
	Proceedings of 2nd International Workshop on "Hadron Physics - Effective Theories of Low Energy QCD", 25.9.-29.9.2002, CFT, Univ. Coimbra, Coimbra, Portugal
	(ISBN 0-7354-0120-9)
	Internal preprint number: FK-2002-3
	F. Kleefeld:
	Consistent relativistic Quantum Theory for systems/particles described by non-Hermitian Hamiltonians and Lagrangians
	hep-ph/0211460
	AIP Conf. Proc. 660 (2003) pp. 325-338
	Proceedings of 2nd International Workshop on "Hadron Physics - Effective Theories of Low Energy QCD", 25.9.-29.9.2002, CFT, Univ. Coimbra, Coimbra, Portugal
	(ISBN 0-7354-0120-9)
	Internal preprint number: FK-2002-4
	M.D. Scadron, F. Kleefeld, G. Rupp, E. van Beveren:
	Meson Form Factors in the Quark-Level Linear Sigma Model
	AIP Conf. Proc. 660 (2003) pp. 311-324
	Proceedings of 2nd International Workshop on "Hadron Physics - Effective Theories of Low Energy QCD", 25.9.-29.9.2002, CFT, Univ. Coimbra, Coimbra, Portugal
	(ISBN 0-7354-0120-9)
	Internal preprint number: FK-2002-6
	F. Kleefeld:
	ISI and FSI in NN--> NNX reactions
	nucl-th/0108064
	Proc. of the Symp. on "Threshold meson production in pp and pd interaction", COSY-11 collaboration meeting, Cracow, Poland, June 20-24, 2001,
	Schriften des Forschungszentrums Jülich, Reihe Materie und Material / Matter and Material, Volume 11 (2002) p. 51-86
	Editors P. Moskal and M. Wolke, (c) Forschungszentrum Jülich, 2002
	(ISBN 3-89336-307-6)
	Internal preprint number: FK-2001-2
	E. van Beveren, F. Kleefeld, G. Rupp, M.D. Scadron:
	Remarks on the f_0 (400-1200) scalar meson as the dynamically generated chiral partner of the pion
	hep-ph/0204139
	Mod. Phys. Lett. A, Vol. 17, No. 25 (2002) pp. 1673-1684
	Internal preprint number: FK-2002-1
	F. Kleefeld, E. van Beveren, G. Rupp, M.D. Scadron:
	Identifying the quark content of the isoscalar mesons f_0 (980), f_0 (1370), and f_0 (1500) from weak and electromagnetic processes
	hep-ph/0109158
	Phys. Rev. D 66 (2002) 034007
	Internal preprint number: FK-2001-3
	F. Kleefeld, E. van Beveren, G. Rupp:
	The pionic width of the Omega (782) meson within a well-defined, unitary quantum field theory of (anti-)particles and (anti-)holes
	hep-ph/0101247
	Nucl. Phys. A 694 (2001) p. 470
	Internal preprint number: FK-2001-1
	F. Kleefeld:
	ABSSM - a new field-theoretic method of describing scattering/production processes of composite particles by asymptotic in-/outgoing Bethe-Salpeter states
	nucl-th/0010002
	Nucl. Phys. A 689 (2001) p. 471
	Proceedings of Few-Body "Évora 2000", XVII'th European Conference on "Few-Body Problems in Physics", 11.9.-16.9.2000, Évora, Portugal
	Internal preprint number: FK-2000-2
	F. Kleefeld:
	Consistent Effective Description of Nucleonic Resonances in an Unitary Relativistic Field-Theoretic Way
	nucl-th/9811032
	Proceedings of XIV International Seminar on High Energy Physics Problems (ISHEPP 98), Relativistic Nuclear Physics and Quantum Chromodynamics, 17.8.-22.8.1998, JINR, Dubna, Russia , Volume I, p. 69 - 77
	Editors A.M. Baldin, V.V. Burov, (c) Joint Institute for Nuclear Research, Dubna, 2000
	(Volume I: ISBN 5-85165-570-4; Volume II: ISBN 5-85165-571-2)
	Internal preprint number: FAU-TP3-98 / 11
	F. Kleefeld:
	ISI/FSI in Threshold Meson Production - Onshell Approach and Coulomb Problem
	nucl-th/0005037 v3
	Acta Physica Polonica B, Vol. 31, No. 10-11 (2000) p. 2225
	Proceedings of "MESON 2000", Workshop on Production, Properties and Interaction of Mesons, 19.5.-23.5.2000, Cracow, Poland
	Internal preprint number: FK-2000-1
	F. Kleefeld:
	Threshold Behaviour of Meson-Nucleon-S_11(1535) Vertexfunctions and Determination of the S_11(1535) Mixing Angle
	nucl-th/9910010 v2
	Proceedings of Eighth International Symposium on Meson-Nucleon Physics and the Structure of the Nucleon (MENU 1999), Zuoz, Engadine, Switzerland, 15.-21.8.1999
	piN-NEWSLETTER No. 15 (1999) p. 250 - 253
	Editors D. Drechsel, G. Höhler, W. Kluge, H. Leutwyler, B.M.K. Nefkens, H.-M. Staudenmaier
	(c) 1999, Institut für experimentelle Kernphysik (IEKP), Universität Karlsruhe, and Department of Physics of UCLA (ISSN 0942-4148)
	Internal preprint number: FAU-TP3-99 / 7
	F.J. Bueche, E. Hecht (Translation by F. Kleefeld):
	(Schaum's) Physik (German translation of the 9th edition, 440 pages)
	Editors H. Fuchs, Ch. Kriesi, (c) 1999, McGraw-Hill International (UK) Ltd. (ISBN 3-89028-944-4)
	F. Kleefeld:
	Exklusive Schwellenproduktion von $\pi^0$-, $\eta$- und $K^+$-Mesonen in Proton-Proton-Stößen
	Doctoral Thesis (University of Erlangen-Nürnberg, June 1999)
	(Attention: compressed version: 1505573 Bytes (disert.ps.gz), uncompressed version: 9346640 Bytes (disert.ps))
	Also available: English (short) version of the thesis (Some selected chapters are translated. For the remaining chapters an english abstract is given)
	F. Kleefeld, M. Dillig:
	Protoninduced Pion-, Eta- and Kaon-Production at Threshold
	nucl-th/9811003
	Proceedings of Eighth International Conference on the Structure of Baryons (Baryons '98), University of Bonn, Germany, September 22-26, 1998, p. 613 - 616
	Editors D.W. Menze, B. Metsch, (c) 1999, World Scientific Publishing Co. Pte. Ltd (ISBN 981-02-3865-7)
	Internal preprint number: FAU-TP3-98 / 19
	F. Kleefeld:
	Consistent effective field-theoretic treatment of resonances with non zero width
	nucl-th/9806060 v2
	Acta Physica Polonica B, Vol. 30, No. 4 (1999) p. 981
	Internal preprint number: FAU-TP3-98 / 10
	F. Kleefeld, M. Dillig:
	Protoninduced Pion-, Eta- and Kaon-Production at Threshold (Abstract of the poster contribution and preprint FAU-TP3-98 / 17)
	Contribution to Handbook of the Eighth International Conference on the Structure of Baryons (Baryons '98), University of Bonn, Germany, September 22-26, 1998
	F. Kleefeld:
	Consistent Effective Description of Nucleonic Resonances in an Unitary Relativistic Field-Theoretic Way (Abstract)
	Contribution to the Conference handbook of XIV International Seminar on High Energy Physics Problems (ISHEPP 98), Relativistic Nuclear Physics & Quantum Chromodynamics, 17.8.-22.8.1998, JINR, Dubna, Russia
	(c) 1998, Joint Institute for Nuclear Research, Dubna (ISBN 5-85165-510-0)
	F. Kleefeld, M. Dillig:
	Reinvestigation of $pp\rightarrow pp\pi^0$ and $pp\rightarrow pp\eta$ at threshold
	nucl-th/9806057 v2
	Acta Physica Polonica B, Vol. 29, No. 11 (1998) p. 3059 (Proceedings of the Meson 98 workshop in Cracow, Poland)
	Internal preprint number: FAU-TP3-98 / 9
	F. Kleefeld:
	Protoninduzierte Schwellenproduktion von schweren/seltsamen Mesonen an Protonen und Kernen: Physik im Grenzbereich zwischen effektiven Freiheitsgraden und Quarks.
	Beitrag zum Teilnehmerhandbuch der 29. Herbstschule für Hochenergiephysik, Maria Laach, 9.-19. September 1997
	P. Hasenfratz (Notes by F. Kleefeld and T. Kraus):
	Fascinating Field Theory: Quantum Field Theory, Renormalization Group, and Lattice Regularization in Lectures on QCD - Foundations (Lecture Notes in Physics, Vol. 481, p. 1),
	Editors F. Lenz, H. Grießhammer, D. Stoll, (c) 1997, Springer-Verlag Berlin Heidelberg (ISBN 3-540-62543-7)
	F. Kleefeld, M. Dillig, F. Pilotto:
	Proton induced $K^+$ production and the $s\bar{s}$ content of the proton
	nucl-th/9806059
	Acta Physica Polonica B, Vol. 27, No. 11 (1996) p. 2867 (Proceedings of the Meson 96 workshop in Cracow, Poland)
	Internal preprint number: FAU-TP3-96 / 8
	F. Kleefeld, M. Dillig:
	Contribution to Handbook of the Conference "Physics with GeV-Particle Beams",Jülich, August 22-25, 1994 (Modified version of the contribution to "Few Body XIV"-handbook)
	F. Kleefeld, M. Dillig, B. Michel:
	Bethe-Salpeter Approach to Relativistic Two-Fermion Systems with Nonstatic Interaction.
	Contribution to Handbook of the Conference "Few Body XIV" Amsterdam, August 23-28, 1993
	Editor: L.P. Kok, ISBN 90 5294 080 0
	F. Kleefeld, M. Dillig, B. Michel:
	Bethe-Salpeter-Approach to Relativistic Two-Fermion-Systems with Separable Nonstatic Interaction.
	Poster contribution to the Conference "Few Body XIV" Amsterdam, August 23-28, 1993
	Internal preprint number: FAU-TP3-95 / 1
	F. Kleefeld:
	Die Zwei-Fermion-Bethe-Salpeter-Gleichung mit einem nicht-statischen, separablen, skalar-vektoriell-pseudoskalaren Potentialkern. Anwendungsbeispiel: Elastische Elektron-Deuteron-Streuung in Impulsapproximation.
	Diploma Thesis (University of Erlangen-Nürnberg, May 1993)
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