The Particle Theory Group at the University of Chicago, part of the Enrico Fermi Institute, carries out research on a wide range of theoretical topics in formal and phenomenological particle physics, including field theory, string theory, supersymmetry, the standard model, cosmology, and mathematical physics. There are strong ties to the Fermilab Theoretical Physics Group, the Argonne Theoretical High Energy Group, and the High Energy Experiment group at Chicago. Among the many current research topics are dualities in string theory, D-branes, non-commutative geometry, large extra dimensions, the AdS/CFT correspondence, inflationary cosmology, the cosmological constant problem, CP violation, B physics, baryogenesis, and supersymmetric model building.
Ph.D., Vienna, 1960.
Professor Emeritus, Dept. of Physics, Enrico Fermi Institute, and the College.
Theoretical physics, particle physics, field theory.
From my work on the number-theoretic features of string theory connected with the algebraic geometry of the strings' world-sheets, I have been led to the study of certain two-dimensional integrable models which exhibit similar number-theoretic features. This has yielded new results on scattering processes in two-dimensional integrable quantum field theories. It has long been known that in such theories there is no particle production and the scattering of two particles determines the scattering of three or more particles. In a very large class of such theories, it turns out that even the input two-particle scattering is determined by simple considerations of quantum-geometry.
Geometries involving direct products of 4-dimensional anti-de Sitter (AdS) space with a 7-dimensional compact Einstein manifold, and of 7-dimensional AdS space with a 4-dimensional compact Einstein manifold which have appeared in the context of solutions of 11-dimensional supergravity found with M. Rubin, have recently been connected by Maldacena with conformal field theory in 3 and 6 dimensions. For certain cases this connection (and similar connections in other dimensions) have been studied in quite some detail by many authors. I am considering certain solutions of this type involving minimal supersymmetry or no supersymmetry at all.
We have constructed gravitational analogs of Born's nonlinear electrodynamics. In a very different vein we studied the implications of discrete scale invariance in certain rupture phenomena such as stock market crashes.
- Dynamics of Dimensional Reduction. P.G.O. Freund and M. Rubin. Phys. Lett. B 97, 233, 1980.
- Superstrings from 26 Dimensions? P.G.O. Freund. Phys. Lett. B 151, 387, 1985.
- p-adic Numbers in Physics. L. Brekke and P.G.O. Freund. Phys. Reports 233, 1, 1993.
- The Spectral Problem for the q-Knizhnik-Zamolodchikov Equation and Continuous q-Jacobi Polynomials. P.G.O. Freund. Comm. Math. Phys. 173, 17, 1995.
- Discrete Scale Invariance in Stock Markets Before Crashes. J.A. Feigenbaum and P.G.O. Freund. Int. J. Modern Phys. 10, 3737, 1996.
- Gravitational Analogs of Nonlinear Born Electrodynamics. J.A. Feigenbaum, P.G.O. Freund and M. Pigli. Phys. Rev. D 57, 4738, 1998.
updated 1/98 or later
Ph.D., Cal. Tech., 1981
Enrico Fermi Distinguished Service Professor, Dept. of Physics, Enrico Fermi Institute,
and the College.
Theoretical physics, particle physics, quantum field theory, superstring theory.
Prof. Harvey has a home page.
Much of the success of particle physics is based on situations where there is a small parameter (such as the fine
structure constant in QED) and quantities of physical interest can be expanded in a perturbative series in terms of this
small parameter. However there are many interesting problems for which this is not the case. These include confinement
and chiral symmetry breaking in QCD and probably the questions of supersymmetry breaking and the choice of vacuum in
string theory. There has been recent progress in these "non-perturbative" problems by using ideas based on supersymmetry
and duality. Duality often allows one to reformulate non-perturbative questions in terms of a dual, weakly coupled description.
My current research focuses on using ideas of string duality to study the structure of QCD, the theory of the strong
interactions. I am particularly interested in the structure of chiral symmetry breaking and the restoration of chiral symmetry
at finite temperature and its possible experimental manifestations at the Relativistic Heavy Ion Collider.
I am also interested in many other topics in particle physics, cosmology and string theory. These include the structure
of solitons such as magnetic monopoles, the development of techniques for better understanding M theory, the uses of
anomalies in field theory and string theory, and the possibility of a non-commutative structure to spacetime at small distance scales.
- Chiral Symmetry Breaking from Intersecting D-Branes. E. Antonyan, J.A. Harvey, D. Kutasov . EFI-06-18, Aug 2006. 29 pp. ** Temporary entry ** e-Print Archive: hep-th/0608177.
- The Gross-Neveu Model from String Theory. E. Antonyan, J.A. Harvey, D. Kutasov . EFI-06-11, Aug 2006. 32 pp. ** Temporary entry ** e-Print Archive: hep-th/0608149.
- NJL and QCD from string theory. E. Antonyan, J.A. Harvey, S. Jensen, D. Kutasov (Chicago U., EFI & Chicago U.) . EFI-06-05, Apr 2006. 31 pp. e-Print Archive: hep-th/0604017.
- The M2-M5 brane system and a generalized Nahm's equation. Anirban Basu, Jeffrey A. Harvey (Chicago U., EFI & Chicago U.) . EFI-04-41, Dec 2004. 18 pp. Published in Nucl. Phys. B 713:136-150 (2005); e-Print Archive: hep-th/0412310.
- Noncommutative field theory and Lorentz violation. Sean M. Carroll, Jeffrey A. Harvey (Chicago U., EFI) , V.Alan Kostelecky (Indiana U.) , Charles D. Lane (Colby Coll.) , Takemi Okamoto (Chicago U., EFI) . EFI-01-12, IUHET-433, May 2001. 4pp. Published in Phys. Rev. Lett. 87:141601 (2001); e-Print Archive: hep-th/0105082.
- Komaba lectures on noncommutative solitons and D-branes. Jeffrey A. Harvey (Chicago U., EFI & Chicago U.). EFI-01-05, Feb 2001. 43 pp. Lectures presented at Komaba 2000 Workshop: Non-perturbative Dynamics in String Theory, Komaba, Japan, 14-16 Nov 2000. e-Print Archive: hep-th/0102076.
updated 8/2006
Ph.D., Weizmann Institute, Israel, 1989.
Professor, Dept. of Physics, Enrico Fermi Institute, and the College.
Theoretical physics, quantum field theory, string theory.
My main research focus in recent years was on a number of questions in field and string theory. One is the dynamics of strongly coupled field theories such as Quantum Chromodynamics, and in particular qualitative phenomena such as confinement and chiral symmetry breaking. String theory appears to be a very fruitful source of ideas for tackling these problems, and I have been involved in exploring their consequences.
Some other topics in string theory I have been studying are the evolution of black holes into highly excited strings as their mass decreases, the physics associated with cosmological singularities such as the big bang, the study of time dependent backgrounds that involve branes accelerating in an external gravitational field, holography in different types of backgrounds, infrared instabilities, and low dimensional toy models of string theory.
Generally speaking, I am interested in developing better tools for analyzing the consequences of string theory in various situations, which seems to be the main obstacle for making predictions about nature. I am also interested in using the dynamical mechanisms that were discovered in string and field theory in recent years to explain potential new results in particle physics experiments and cosmology.
- "Holography for Non-Critical Superstrings'', A. Giveon, D. Kutasov and O. Pelc, hep-th/9907178,
J. High Energy Phys. 9910 (1999) 035.
- "Some Exact Results on Tachyon Condensation in String Field Theory'', D. Kutasov, M. Marino and G. Moore, hep-th/0009148, JHEP 0010 (2000) 045.
- "A Matrix Model for the Two Dimensional Black Hole'', V. Kazakov, I. Kostov and D. Kutasov, hep-th/0101011, Nucl. Phys. B622 (2002) 141.
- ``From Big Bang to Big Crunch and Beyond'', S. Elitzur, A. Giveon, D. Kutasov, E. Rabinovici, hep-th/0204189, JHEP 0206 (2002) 017.
- "A New Hat For The c=1 Matrix Model,'' M. R. Douglas, I. R. Klebanov, D. Kutasov, J. Maldacena, E. Martinec, N. Seiberg, hep-th/0307195.
- "New Results on the 'a-theorem' in Four Dimensional Supersymmetric Field Theory,'' D. Kutasov, hep-th/0312098.
- "D-Brane Dynamics Near NS5-Branes,'' D. Kutasov, hep-th/0405058.
- "Accelerating Branes and the String/Black Hole Transition,'' D. Kutasov, hep-th/0509170.
- "NJL and QCD from String Theory,'' E. Antonyan, J.A. Harvey, S. Jensen, D. Kutasov, hep-th/0604017.
updated 8/2006
Ph.D., Cornell, 1984.
Professor, Dept. of Physics, Enrico Fermi Institute, and the College.
Theoretical physics, string theory, quantum field theory, elementary particles.
Prof. Martinec has a home page.
My work aims at uncovering the structural foundations of string theory
(now often called M-theory), which attempts to unify the basic forces.
The theoretical underpinnings of the subject are finally taking shape,
due to the discovery of nonperturbative dualities between different
descriptions of the theory. The spacetime manifold on which particles
and waves propagate is being replaced by a more "stringy" notion of geometry
at short distances and/or in strong fields.
One issue of interest to me is how string theory incorporates
black holes as quantum states. This problem has turned out to be
a rather sensitive probe of the theory, and will likely lead us
to new notions of space, time, and dynamics. Cosmology also requires
an understanding of the resolution of gravitational singularities,
and I am investigating whether techniques used in the resolution of
black hole singularities can be applied there.
- Black Holes and the Phases of Brane Thermodynamics. Lectures given at NATO Advanced Study Institute: TMR Summer School on Progress in String Theory and M-Theory (Cargese 99), Cargese, Corsica, France, 24 May - 5 Jun 1999. Published in *Cargese 1999, Progress in string theory
and M-theory* 117-145. e-Print Archive hep-th/9909049.
- Defects, decay, and dissipated states. Lectures given at NATO Advanced Study Institute and EC Summer School on Progress in String, Field and Particle Theory, Cargese, Corsica, France, 25 Jun - 11 Jul 2002. Published in *Cargese 2002, Progress in string, field and particle theory* 225-262
e-Print Archive: hep-th/0210231.
- Closed string tachyon condensation and world sheet inflation.
Bruno Carneiro Da Cunha, Emil J. Martinec. Published in Phys.Rev.D 68 063502 (2003).
e-Print Archive: hep-th/0303087.
- A New hat for the c=1 matrix model.
M.R. Douglas, I.R. Klebanov, D. Kutasov, J. Maldacena, E. Martinec, N. Seiberg.
In *Shifman, M. (ed.) et al.: From fields to strings, vol. 3* 1758-1827.
e-Print Archive: hep-th/0307195.
- Toward the end of time.
Emil J. Martinec, Daniel Robbins, Savdeep Sethi;
e-Print Archive: hep-th/0603104.
updated 8/2006
Sc.D., Tokyo, Japan, 1952.
Harry Pratt Judson Distinguished Service Professor Emeritus, Dept. of Physics and Enrico Fermi Institute.
Theoretical physics, particle physics, field theory.
I have always been interested in the problem of mass hierarchy of particles.
In this connection I have been exploring certain new aspects of spontaneous symmetry breaking. In 2002 I discovered a theorem on an anomaly in the number and the properties of Nambu-Goldstone bosons. This has led me to speculate on the possible violations of Lorentz invariance in free space. I also found that such “quasiparticles”, when regarded as classical particles, have peculiar non-Newtonian behavior that the effective mass can go negative (v and p in opposite directions) in a certain range of momentum, and the initial position and velocity of a particle do not uniquely determine its motion. In a more recent development, I have found a formulation of the so-called BEC-BCS crossover phenomenon, and I am looking into its general implications in physics.
Hagedorn-Rumer phenomena. It is well known in hadron multiple production (according to the so-called Hagedorn fireball model) as well as in string theory that the density of states increases exponentially with energy and
competes with the Boltzmann factor so that thermodynamic equilibrium cannot be maintained above a certain limiting temperature. I have been interested in this as part of my search for phenomena that defy thermodynamics. The entropy of the black hole is of a similar but more drastic nature, and has been the subject of intense study in string theory lately. In classical physics I have found two simple examples of exponential density of states. One is a particle in a logarithmic potential, which had already been pointed out by Y. Rumer in 1960. The other is a particle under gravity and placed in a vessel whose
horizontal cross section grows exponentially upwards. I suspect this is a rather general phenomenon which might eventually become relevant to biology as well as cosmological problems.
- A Dynamical Model of Elementary Particles based on an Analogy with Superconductivity I, (with G. Jona-Lasinio),
Phys. Rev. 122, 345 (1961).
- Fermion-Boson Relations in BCS Type Theories, Physica D 15, 173 (1985).
- Symmetry Breaking, Chiral Dynamics, and Fermion Masses, Nuc. Phys. A 629 (1998) 3c.
- Three Stages, Three Modes, and Beyond, Proc. XX Nishinomiya-Yukawa Symposium, 1996
(World Scientific, 97) p.1.
- Aharonov-Bohm Problem Revisited, Nucl. Phys. B 579 (2000) 590. CPT, SSB, Ether, and All THAT, Proceedings of CPT01, Indiana University, (World Scientific, 2002), p.1.
- Spontaneous Breaking of Lie and Current Algebras, J. Stat. Phys. 115 (2004) 7.
- Some Anomalies Related to Spontaneous Symmetry Breaking, Proceedings of CPT04, Indiana University,
(World Scientific, 2005), p.1.
updated 8/2006
Ph.D., Goettingen, 1951.
Professor Emeritus, Dept. of Physics and Enrico Fermi Institute.
Theoretical physics, particle physics, field theory.
The confinement of gluons and quarks is a fundamental problem in non-
perturbative quantum chromodynamics. Some time ago, we have obtained results
about the phase structure of ordinary and SUSY gauge field theories on the
basis of superconvergence relations and the BRST cohomology. Now we find that,
for SUSY theories, our conclusions agree with those obtained more recently on
the basis of duality. In contrast to duality, our methods are applicable to
non-SUSY theories.
As a general method of imposing restrictions on quantum field theories with
several parameters, we have introduced a theory of reduction of couplings.
This method is based upon the renormalization group, and is more general than the
imposition of symmetries. There are solutions of the reduction equations
which do not correspond to additional symmetries, but may be related to aspects of superstring theories. Our reduction theory is finding a wide range of applications. A
comprehensive article for Physics Reports is in preparation
Previously, in connection with our introduction and our proof of dispersion
relations for hadron scattering, we have discussed effects of possible violations of
locality and Lorentz invariance (see, for example, our article in the Wentzel
Festschrift). With string theory, and with field theories on non-commutative spaces, there are now more explicit models, and we are studying their implications. In
addition to the absorptive thresholds and the composite structure cuts,
there appear new singularities. My interest in violations of locality goes back to
discussions with Werner Heisenberg about a "smallest length". This was around 1950 in
Goettingen, when I was his doctoral student.
In 1956, we formulated and proved what we called the "Edge of the Wedge
Theorem" ("Keilkanten Theorem"). It is a fundamental theorem in the theory
of several complex variables, and it has been widely used in mathematics and
physics. It provides the initial domains for the construction of envelopes of
holomorphy, a completely geometric process. For theories with broken Lorentz
invariance, our theorem can be used to proof that microcausality and energy positivity imply Lorentz invariant energy-momentum relations for single particle
contributions as well as boundaries of continua (see also Borchers, Ann. Henry Poincare 3 (2002) and references there).
Prof. Oehme has a home page.
- Charge Conjugation Non-Conservation. R. Oehme. Letter to C.N. Yang, April 7, 1956. Reprinted in C.N. Yang, Selected Papers, p.32.
- Remarks on Possible Noninvariance under Time Reversal and Charge Conjugation. T.D. Lee, R. Oehme, and C.N. Yang. Phys. Rev. 106, 340, 1957. Reprinted in C.N.Yang,: Selected Papers 1945-1980, p.199, and in CP-Violation, L. Wolfenstein, p.8.
- Proof of Dispersion Relations in Quantized Field Theory (Edge of the
Wedge Theorem). H.J. Bremermann, R. Oehme and J.G. Taylor Phys. Rev, 109, 2178, 1957; Colloquium presented at Palmer Hall, Princeton University, by R.
Oehme, Winter 56/57.
- The Compound Structure of Elementary Particles. R. Oehme. In Werner Heisenberg und die Physik unserer Zeit, Heisenberg Festschrift, Verlag Friedrich Vieweg und Sohn, Braunschweig, 1961, p.240.
- Forward Dispersion Relations and Microcausality. R. Oehme. In Quanta, Wentzel Festschrift, Univ. of Chicago Press, Chicago, 1970, p.309
- Relations Between Effective Couplings for Asymptotically Free Models.
R. Oehme and W. Zimmermann. Comm. Math. Phys., 97, 586, 1985.
- Reduction of Dual Theories. R. Oehme.Phys. Rev., 97, 586, 1985.
- Reduction and Reparametrization of Quantum Field Theories. R. Oehme,
CERN-TH-4245/85, Nambu Festschrift, Prog.Theor.Phys.Suppl., 86, 251 1986.
- Renormalization Group, BRST Cohomology and the Problem of Confinement.
R.Oehme, Phys.Rev., D42, 4209, 1990.
- The Edge of the Wedge Theorem, Microcausality and Violations of Lorentz
Invariance. Prepared for the Mexican School of Particles and Fields, Playa
del Carmen, 2002.
- Reduction in the Number of Coupling Parameters. R. Oehme, W. Zimmermann
and G. Zoupanos, Physics Reports, (in preparation, 2003).
updated 2/2003
Ph.D., Princeton, 1965.
Professor, Dept. of Physics, Enrico Fermi Institute, and the College.
Theoretical physics, particle physics, field theory.
Prof. Rosner has a home page.
Recent experiments at Fermilab and CERN and some non-accelerator experiments
(including measurements of parity violation in atoms) have permitted tests of
the theory of electroweak interactions with unprecedented accuracy. Studies
are in progress to determine how these experiments shed light on new physics in
the mass range of 100 GeV to several TeV.
A parallel line of investigation deals with the weak couplings of quarks to one
another, as parametrized by the Cabibbo-Kobayashi-Maskawa (CKM) matrix. Various
ways of learning these couplings more precisely are being studied. A key role
is played by experiments on decays of mesons containing the "charm" and "bottom"
(or "beauty") quarks. Present data on the violation of CP symmetry (the
combination of charge and space inversion) in decays of these mesons are used
to sharpen information on magnitudes and phases of CKM matrix elements and to
search for new physics if and when inconsistencies are encountered.
Other topics being investigated include properties of systems involving one or
more charm and bottom quarks, the nature of dark matter, the possibility that
quarks and leptons have a composite structure, the role of neutrino masses in
understanding fermion masses and couplings, the possibility of detecting new
quarks and leptons with unusual quantum numbers as predicted in certain unified
theories of the electroweak and strong interactions, and the experimental
signatures of gauge theories beyond the standard SU(3) X SU(2) X U(1)
electroweak-strong theory.
Rosner has performed an experiment to search for and study radio-frequency (RF)
pulses accompanying cosmic ray air showers. He hopes to use experience in
these studies to instrument the proposed Northern Hemisphere Auger Giant Air
Shower Detector with the capability of RF pulse detection. Since 2003 he has
been a member of the CLEO Collaboration studying electron-positron collisions
at Cornell, with particular focus on the spectroscopy of heavy charm-anticharm
and bottom-antibottom mesons.
- Resource Letter: The Standard Model and Beyond, Enrico Fermi Institute Report
02-89, arXiv: hep-ph/0206176, Am. J. Phys. 71, 302-318 (2003).
- A Prototype System for Detecting the RF Pulse Associated With Cosmic Ray Air
Showers, Kevin Green, Jonathan L. Rosner, Denis Suprun, and J. F. Wilkerson,
Enrico Fermi Institute Report No. 2000-14, arXiv: astro-ph/0205046, Nucl.
Instr. Meth. A 498, 256-288 (2003).
- First Observation of an Upsilon(1D) State, G. Bonvicini et al.
[CLEO Collaboration], Cornell University Report No. CLNS 04/1866, arXiv:
hep-ex/0404021, Phys. Rev. D 70, 032001 (2004).
- Status of the CKM Matrix, invited talk presented at 5th Rencontres
du Vietnam, Hanoi, August 6--11, 2004, Enrico Fermi Institute Report 04-37,
arXiv: hep-ph/0410281, to be published in the Proceedings.
- Observation of the hc(1P1) State of Charmonium, J. L. Rosner et al. [CLEO
Collaboration], Cornell University Report No. CLNS-05-1919, CLEO-05-11, arXiv:
hep-ex/0505073, Phys. Rev. Lett. 95, 102003 (2005).
- Hadronic Spectroscopy - A 2005 Snapshot, Enrico Fermi Institute Report 05-10,
arXiv: hep-ph/0508155, published in XXV Physics in Collision (Proceedings of
the XXV International Conference on Physics in Collision, Prague, Czech
Republic, 5-9 July 2005), edited by V. Simak et al., AIP Conference
Proceedings No. 815 (AIP, Melville, New York, 2006), pp. 218-232.
- Dark Matter in Many Forms, Enrico Fermi Institute Report 05-13, arXiv:
astro-ph/0509196, presented at 2005 ALCPG & ILC Workshops, Snowmass, Colorado,
August 14-27, 2005, published in the Proceedings.
- Symmetry Relations in Charmless B -> PPP Decays, Michael Gronau and Jonathan
L. Rosner, Enrico Fermi Institute Report 05-14, arXiv: hep-ph/0509155,
Phys. Rev. D 72, 094031 (2005).
- Suppression of Flavor Symmetry Breaking in B Decay Sum Rules,
Michael Gronau, Yuval Grossman, and Jonathan L. Rosner, Enrico Fermi Institute
Report No. 06-01, arXiv: hep-ph/0601129, Phys. Lett. B 635, 207-212 (2006).
- Isospin in B Decays and the (B0 B0-bar)/(B+ B-) Production Ratio, Michael
Gronau, Yuval Grossman, Guy Raz, and Jonathan L. Rosner, Enrico Fermi Institute
Report No. 06-02, arXiv: hep-ph/0601136, Phys. Rev. D 73, 057501 (2006).
updated 8/2006
Ph.D., Harvard, 1996.
Associate Professor, Dept. of Physics, Enrico Fermi Institute, and the College.
Theoretical physics, quantum field theory, string theory, particle physics.
Prof. Sethi has a home page.
To answer basic questions about the nature of space and time and the origin of the universe, we require a quantum theory of gravity. The most promising candidate for such a theory is string theory which attempts to unify all the forces of nature in a single consistent framework. String has grown much richer over the past few years, and is no longer simply a theory of weakly interacting strings. Rather it contains membranes and other higher-dimensional objects which all appear to originate from a unique eleven-dimensional theory known as M-theory. Uncovering the structure of M-theory is very likely to radically change our understanding of space, time and gravity.
My research centers on understanding various aspects of M-theory, string theory and field theory. Specifically, my recent work has focused on constructing models of the Big Bang where the physics near the Big Bang is actually under control via the use of holography. In such models, gravity and space-time are emergent phenomena. In addition to this area, I have long standing interests in string compactifications like those that involve fluxes or novel vacua that involve triples of commuting connections, and in supersymmetric field theory.
- Toward the end of time. Emil J. Martinec, Daniel Robbins, and Savdeep Sethi. JHEP 0608:025 (2006).
- Effective dynamics of the matrix big bang. Ben Craps, Arvind Rajaraman and Savdeep Sethi. Phys. Rev. D 73, 106005 (2006).
- A Matrix big bang. Ben Craps, Savdeep Sethi, and Erik Verlinde. JHEP 0510:005 (2005).
- Triples, fluxes, and strings. J. de Boer, R. Dijkgraaf, K. Hori, A. Keurentjes, J. Morgan, D. R. Morrison and S. Sethi.
- Saltatory relaxation of the cosmological constant. J.L. Feng, J. March-Russell, S. Sethi and F. Wilczek.
- The Structure of the D0-D4 Bound State. S. Sethi and M. Stern. Nucl. Phys. B 578, 163, 2000.
- M Theory, Orientifolds and G-Flux. K. Dasgupta, G. Rajesh and S. Sethi. JHEP 9908, 023, 1999.
- Supersymmetry Constraints on Type IIB Supergravity. M.B. Green and S. Sethi. Phys. Rev. D59, 046006, 1999.
- A Relation Between N=8 Gauge Theories in Three Dimensions. S. Sethi. JHEP 9811, 003, 1998.
- Constraints on Low-Dimensional String Compactifications. S. Sethi, C. Vafa and E. Witten. Nucl. Phys. B480, 213, 1999.
updated 8/2006
Ph. D., University of Hamburg, 1989.
Physicist, High Energy Physics, Argonne National Lab.; Professor (part-time), Dept. of Physics and Enrico Fermi Institute.
Theoretical physics, elementary particles, supersymmetric theories.
Prof. Wagner has a home page.
Among the most relevant open questions in particle physics are the ones
related to the origin of mass and to the existence of matter in the
Universe. The answer to the first question relies on the mechanism of
electroweak symmetry breaking, which can be tested through the corresponding
Higgs physics at high energy collider facilities. The answer to the
second question is more difficult, since the understanding of the origin of
ordinary matter, the building blocks of atoms, and of dark matter, visible
only via its gravitational interactions, demands new
physics, beyond the current Standard Model description. One ambitious
goal would be to find a scenario that led to an answer to all these
questions in a natural way. Supersymmetric extensions of the standard
model seem to provide the best framework to achieve such a goal, while
allowing the possibility of a unified description of all particle
interactions. For these reasons, my research activities focus on such
supersymmetric extensions, putting emphasis on Higgs physics and on
the possible experimental tests of these theories. Moreover, I investigate
the possibility of generating all matter by physics at low energies, that
may be testable at current experiments, or at those planned in the near
future. One of the findings of my work is that this possibility may
be realized in minimal supersymmetric extensions of the Standard Model,
if some specific conditions are fulfilled. These conditions will be
tested at the Tevatron collider, which is operating at the Fermilab
Laboratory in the Chicago area, as well as the LHC collider at CERN,
which will start operation by the end of the year 2007.
- On the Unification of Couplings in the Minimal Supersymmetric Standard Model. M. Carena, S. Pokorski, C.E.M. Wagner. Nucl. Phys. B 406, 59,1993.
- Electroweak Symmetry Breaking and Bottom - Top Yukawa Unification. M. Carena, M. Olechowski, S. Pokorski, C.E.M. Wagner. Nucl. Phys. B 426, 269,1994.
- Effective Potential Methods and the Higgs Mass Spectrum in the MSSM. M. Carena, M. Quiros, C.E.M. Wagner. Nucl. Phys. B 461, 407, 1996.
- Opening the Window for Electroweak Baryogenesis, M. Carena, M. Quiros and C.E.M. Wagner,
Phys. Lett. B 380 (1996) 81.
- Higgs Bosons in the Minimal Supersymmetric Standard Model with
Explicit CP Violation, A. Pilaftsis and C.E.M. Wagner, Nucl. Phys. B 553 (1999) 3.
- Branes and orbifolds are opaque, M. Carena, T. M. P. Tait and C. E. M. Wagner,
Acta Phys.Polonica B 33 (2002) 2325.
- Beautiful Mirrors and Precision Electroweak Data, D. Choudhury, T.M.P. Tait and C.E.M. Wagner,
Phys. Rev. D 65:053002, 2002.
- Improved results in supersymmetric electroweak baryogenesis, M. Carena, M. Quiros, M. Seco and C. E. M. Wagner, Nucl. Phys. B 650 (2003) 24.
- Electroweak baryogenesis and dark matter in the nMSSM, A. Menon, D.E. Morrissey and C.E.M. Wagner, 70:035005, 2004.
- Warped fermions and precision tests, M. Carena, A. Delgado, E. Ponton, T.M.P. Tait and C.E.M. Wagner, Phys. Rev.D 71:015010, 2005.
- The Supersymmetric Origin of Matter, M. Carena, C. Balazs, A. Menon, D. Morrissey and C.E.M. Wagner, Phys. Rev. D 71:075002, 2005.
updated 8/2006
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