Csaba Csaki

Top and Bottom: a Brane of Their Own (2005)

We present a simple mechanism which can mimic dark energy with an equation of state w < -1 as deduced from the supernova data. We imagine that the universe is accelerating under the control of a...

Cacciapaglia, Giacomo, Csaki, Csaba, Grojean, Christophe, Reece, Matthew, Terning, John

We consider extra dimensional descriptions of models where there are two separate strongly interacting sectors contributing to electroweak symmetry breaking (``topcolor'' type models). In the extra...

Warped Domain Wall Fermions (2005)

Bhattacharya, Tanmoy, Csaki, Csaba, Martin, Matthew R., Shirman, Yuri, Terning, John

We consider Kaplan's domain wall fermions in the presence of an Anti-de Sitter (AdS) background in the extra dimension. Just as in the flat space case, in a completely vector-like gauge theory...

Higgsless Electroweak Symmetry Breaking (2004)

We discuss the possibility of breaking the electroweak symmetry in theories with extra dimensions via boundary conditions, without a physical Higgs scalar in the spectrum. In these models the...

Exorcising w < -1 (2004)

Curing the Ills of Higgsless Models: the S Parameter and Unitarity (2004)

We show that the combined dimming of Type Ia supernovae induced by both a cosmological constant and the conversion of photons into axions in extra-galactic magnetic fields can impersonate dark energy...

Cacciapaglia, Giacomo, Csaki, Csaba, Grojean, Christophe, Terning, John

We consider various constraints on Higgsless models of electroweak symmetry breaking based on a bulk SU(2)_L x SU(2)_R x U(1)_{B-L} gauge group in warped space. First we show that the S parameter...

TASI Lectures on Extra Dimensions and Branes (2004)

Gauge Theories on an Interval: Unitarity Without a Higgs Boson (2004)

This is a pedagogical introduction into theories with branes and extra dimensions. We first discuss the construction of such models from an effective field theory point of view, and then discuss...

Csaki, Csaba, Grojean, Christophe, Murayama, Hitoshi, Luigi, Pilo, Terning, John

A Mixed Phase of SUSY Gauge Theories from a-Maximization (2004)

Csaki, Csaba, Meade, Patrick, Terning, John

We study N=1 supersymmetric SU(N) gauge theories with an antisymmetric tensor and F flavors using the recent proposal of a-maximization by Intriligator and Wecht. This theory had previously been...

Oblique Corrections from Higgsless Models in Warped Space (2004)

Cacciapaglia, Giacomo, Csaki, Csaba, Grojean, Christophe, Terning, John

We calculate the tree-level oblique corrections to electroweak precision observables generated in higgless models of electroweak symmetry breaking with a 5D SU(2)_L x SU(2)_R x U(1)_{B-L} gauge group...

Towards a Realistic Model of Higgsless Electroweak Symmetry Breaking (2003)

Csaki, Csaba, Grojean, Christophe, Pilo, Luigi, Terning, John

We present a 5D gauge theory in warped space based on a bulk SU(2)_L x SU(2)_R x U(1)_(B-L) gauge group where the gauge symmetry is broken by boundary conditions. The symmetry breaking pattern and...

Super-GZK Photons from Photon-Axion Mixing (2003)

Csaki, Csaba, Kaloper, Nemanja, Peloso, Marco, Terning, John

We show that photons with energies above the GZK cutoff can reach us from very distant sources if they mix with light axions in extragalactic magnetic fields. The effect which enables this is the...

Standard Model Higgs from Higher Dimensional Gauge Fields (2002)

Csaki, Csaba, Grojean, Christophe, Murayama, Hitoshi

We consider the possibility that the standard model Higgs fields may originate from extra components of higher dimensional gauge fields. Theories of this type considered before have had problems...

Seiberg-Witten Description of the Deconstructed 6D (0,2) Theory (2002)

Csaki, Csaba, Erlich, Joshua, Terning, John

It has recently been suggested that, in a large N limit, a particular four dimensional gauge theory is indistinguishable from the six dimensional CFT with (0,2) supersymmetry compactified on a torus....

Constraints on the SU(3) Electroweak Model (2002)

Csaki, Csaba, Erlich, Joshua, Kribs, Graham D., Terning, John

We consider a recent proposal by Dimopoulos and Kaplan to embed the electroweak SU(2)_L X U(1)_Y into a larger group SU(3)_W X SU(2) X U(1) at a scale above a TeV. This idea is motivated by the...

The Effective Lagrangian in the Randall-Sundrum Model and Electroweak Physics (2002)

Csaki, Csaba, Erlich, Joshua, Terning, John

We consider the two-brane Randall-Sundrum (RS) model with bulk gauge fields. We carefully match the bulk theory to a 4D low-energy effective Lagrangian. In addition to the four-fermion operators...

Effects of the Intergalactic Plasma on Supernova Dimming via Photon-Axion Oscillations (2001)

Dimming Supernovae without Cosmic Acceleration (2001)

We have recently proposed a mechanism of photon-axion oscillations as a way of rendering supernovae dimmer without cosmic acceleration. Subsequently, it has been argued that the intergalactic plasma...

Asymmetrically Warped Spacetimes (2001)

We present a simple model where photons propagating in extra-galactic magnetic fields can oscillate into very light axions. The oscillations may convert some of the photons departing a distant...

4D Models of Scherk-Schwarz GUT Breaking via Deconstruction (2001)

We investigate spacetimes in which the speed of light along flat 4D sections varies over the extra dimensions due to different warp factors for the space and the time coordinates (``asymmetrically...

Csaki, Csaba, Kribs, Graham D., Terning, John

We examine new classes of GUT models where the GUT gauge group is broken by a 4D analogue of the Scherk-Schwarz mechanism. These models are inspired by ``deconstructed'' 5D Scherk-Schwarz orbifold...

Gravitational Lorentz Violations and Adjustment of the Cosmological Constant in Asymmetrically Warped Spacetimes (2000)

Csaki, Csaba, Erlich, Joshua, Grojean, Christophe

We investigate spacetimes in which the speed of light along flat 4D sections varies over the extra dimensions due to different warp factors for the space and the time coordinates (``asymmetrically...

Radion Dynamics and Electroweak Physics (2000)

Csaki, Csaba, Graesser, Michael L., Kribs, Graham D.

The dynamics of a stabilized radion in the Randall-Sundrum model (RS) with two branes is investigated, and the effects of the radion on electroweak precision observables are evaluated. The radius is...

General Properties of the Self-tuning Domain Wall Approach to the Cosmological Constant Problem (2000)

Csaki, Csaba, Erlich, Joshua, Grojean, Christophe, Hollowood, Timothy

We study the dynamics of brane worlds coupled to a scalar field and gravity, and find that self-tuning of the cosmological constant is generic in theories with at most two branes or a single brane...

Holographic RG and Cosmology in Theories with Quasi-Localized Gravity (2000)

Csaki, Csaba, Erlich, Joshua, Hollowood, Timothy J., Terning, John

We study the long distance behaviour of brane theories with quasi-localized gravity. The 5D effective theory at large scales follows from a holographic renormalization group flow. As intuitively...

Graviton Propagators, Brane Bending and Bending of Light in Theories with Quasi-Localized Gravity (2000)

Csaki, Csaba, Erlich, Joshua, Hollowood, Timothy J.

We derive the graviton propagator on the brane for theories with quasi-localized gravity. In these models the ordinary 4D graviton is replaced by a resonance in the spectrum of massive Kaluza-Klein...

Quasi-Localization of Gravity by Resonant Modes (2000)

Csaki, Csaba, Erlich, Joshua, Hollowood, Timothy J.

We examine the behaviour of gravity in brane theories with extra dimensions in a non-factorizable geometry. We find that for metrics which are asymptotically flat far from the brane there is a...

Black Diamonds at Brane Junctions (2000)

Chamblin, Andrew, Csaki, Csaba, Erlich, Joshua, Hollowood, Timothy J.

We discuss the properties of black holes in brane-world scenarios where our universe is viewed as a four-dimensional sub-manifold of some higher-dimensional spacetime. We consider in detail such a...

Universal Aspects of Gravity Localized on Thick Branes (2000)

Csaki, Csaba, Erlich, Joshua, Hollowood, Timothy J., Shirman, Yuri

We study gravity in backgrounds that are smooth generalizations of the Randall-Sundrum model, with and without scalar fields. These generalizations include three-branes in higher dimensional spaces...

Cosmology of Brane Models with Radion Stabilization (1999)

Csaki, Csaba, Graesser, Michael, Randall, Lisa, Terning, John

We analyze the cosmology of the Randall-Sundrum model and that of compact brane models in general in the presence of a radius stabilization mechanism. We find that the expansion of our universe is...

Brane Junctions in the Randall-Sundrum Scenario (1999)

Csaki, Csaba, Shirman, Yuri

We present static solutions to Einstein's equations corresponding to branes at various angles intersecting in a single 3-brane. Such configurations may be useful for building models with localized...

Cosmology of One Extra Dimension with Localized Gravity (1999)

Csaki, Csaba, Graesser, Michael, Kolda, Christopher, Terning, John

We examine the cosmology of the two recently proposed scenarios for a five dimensional universe with localized gravity. We find that the scenario with a non-compact fifth dimension is potentially...

Beta Functions of Orbifold Theories and the Hierarchy Problem (1999)

Csaki, Csaba, Skiba, Witold, Terning, John

We examine a class of gauge theories obtained by projecting out certain fields from an N=4 supersymmetric SU(N) gauge theory. These theories are non-supersymmetric and in the large N limit are known...

Glueball Mass Spectrum from Supergravity (1999)

Csaki, Csaba, Terning, John

We review the calculation of the spectrum of glueball masses in non-supersymmetric Yang-Mills theory using the conjectured duality between supergravity and large N gauge theories. The glueball masses...

Late Inflation and the Moduli Problem of Sub-Millimeter Dimensions (1999)

Csaki, Csaba, Graesser, Michael, Terning, John

We consider a recent model with sub-millimeter sized extra dimensions, where the field that determines the size of the extra dimensions (the radion) also acts as an inflaton. The radion is also a...

Supergravity Models for 3+1 Dimensional QCD (1999)

Csaki, Csaba, Russo, Jorge, Sfetsos, Konstadinos, Terning, John

The most general black M5-brane solution of eleven-dimensional supergravity (with a flat R^4 spacetime in the brane and a regular horizon) is characterized by charge, mass and two angular momenta. We...

Large N QCD from Rotating Branes (1998)

Csaki, Csaba, Oz, Yaron, Russo, Jorge, Terning, John

We study large N SU(N) Yang-Mills theory in three and four dimensions using a one-parameter family of supergravity models which originate from non-extremal rotating D-branes. We show explicitly that...

New Confining N=1 Supersymmetric Gauge Theories (1998)

The Confining N=1 Supersymmetric Gauge Theories: a Review (1998)

We examine N=1 supersymmetric gauge theories which confine in the presence of a tree-level superpotential. We show the confining spectra which satisfy the 't Hooft anomaly matching conditions and...

Glueball Mass Spectrum From Supergravity (1998)

We give a classification and overview of the confining N=1 supersymmetric gauge theories. For simplicity we consider only theories based on simple gauge groups and no tree-level superpotential....

Csaki, Csaba, Ooguri, Hirosi, Oz, Yaron, Terning, John

We calculate the spectrum of glueball masses in non-supersymmetric Yang-Mills theory in three and four dimensions, based on a conjectured duality between supergravity and large N gauge theories. The...

't Hooft Anomaly Matching for Discrete Symmetries (1998)

Instantons in Partially Broken Gauge Groups (1998)

We show how to extend the 't Hooft anomaly matching conditions to discrete symmetries. We check these discrete anomaly matching conditions on several proposed low-energy spectra of certain strongly...

Gauge Theories with Tensors from Branes and Orientifolds (1998)

We discuss the effects of instantons in partially broken gauge groups on the low-energy effective gauge theory. Such effects arise when some of the instantons of the original gauge group G are no...

Csaki, Csaba, Schmaltz, Martin, Skiba, Witold, Terning, John

We present brane constructions in Type IIA string theory for N=1 supersymmetric SO and Sp gauge theories with tensor representations using an orientifold 6-plane. One limit of these set-ups...

Classification of the N=1 Seiberg-Witten Theories (1998)

Csaki, Csaba, Skiba, Witold

We present a systematic study of N=1 supersymmetric gauge theories which are in the Coulomb phase. We show how to find all such theories based on a simple gauge group and no tree-level...

Discrete Anomaly Matching (1997)

Duality in Sp and SO Gauge Groups from M Theory (1997)

We extend the well-known 't Hooft anomaly matching conditions for continuous global symmetries to discrete groups. We state the matching conditions for all possible anomalies which involve discrete...

Csaki, Csaba, Skiba, Witold

We describe fivebrane configurations in M theory whose 4-d spacetime contains N=1 supersymmetric Sp or SO gauge fields and fundamentals of these groups. We show how field-theory dualities for Sp and...

Composite Intermediary and Mediator Models of Gauge-Mediated Supersymmetry Breaking (1997)

Csaki, Csaba, Randall, Lisa, Skiba, Witold

We discuss gauge-mediated models which employ a tree-level mass term in the superpotential. We give explicit composite realizations in which the mass terms are not fundamental. Instead, they arise as...

N=1 Supersymmetric Product Group Theories in the Coulomb Phase (1997)

Csaki, Csaba, Erlich, Joshua, Freedman, Daniel, Skiba, Witold

We study the low-energy behavior of N=1 supersymmetric gauge theories with product gauge groups SU(N)^M and M chiral superfields transforming in the fundamental representation of two of the SU(N)...

Self-Dual N=1 SUSY Gauge Theories (1997)

Csaki, Csaba, Schmaltz, Martin, Skiba, Witold, Terning, John

We present a large set of new self-dual N=1 SUSY gauge theories. Examples include SU(N) theories with tensors and SO(N) theories with spinors. Using these dualities as starting points, new...

Confinement in N=1 SUSY Gauge Theories and Model Building Tools (1996)

Csaki, Csaba, Schmaltz, Martin, Skiba, Witold

We develop a systematic approach to confinement in N=1 supersymmetric theories. We identify simple necessary conditions for theories to confine without chiral symmetry breaking and to generate a...

Are the Supersymmetric Higgs Particles Pseudo-Goldstone Bosons? (1996)

A Systematic Approach to Confinement in N=1 Supersymmetric Gauge Theories (1996)

A promising solution to the doublet-triplet splitting problem of SUSY GUT's is the Higgs as pseudo-Goldstone boson mechanism. We present two models which naturally implement this idea and extend one...

Csaki, Csaba, Schmaltz, Martin, Skiba, Witold

We give necessary criteria for N=1 supersymmetric theories to be in a smoothly confining phase without chiral symmetry breaking and with a dynamically generated superpotential. Using our general...

Exact Results and Duality for SP(2N) SUSY Gauge Theories with an Antisymmetric Tensor (1996)

Csaki, Csaba, Skiba, Witold, Schmaltz, Martin

We study supersymmetric Sp(2N) gauge theories with matter in the antisymmetric tensor representation and F fundamentals. For F=6 we solve the theory exactly in terms of confined degrees of freedom...

Supersymmetry Breaking Through Confining and Dual Theory Gauge Dynamics (1996)

Csaki, Csaba, Randall, Lisa, Skiba, Witold, Leigh, Robert

We show that theories in the confining, free magnetic, and conformal phases can break supersymmetry through dynamical effects. To illustrate this, we present theories based on the gauge groups...

The Minimal Supersymmetric Standard Model (MSSM) (1996)

More Dynamical Supersymmetry Breaking (1996)

The structure of the MSSM is reviewed. We first motivate the particle content of the theory by examining the quantum numbers of the known standard model particles and by the requirement of anomaly...

Csaki, Csaba, Randall, Lisa, Skiba, Witold

In this paper we introduce a new class of theories which dynamically break supersymmetry based on the gauge group SU(n)xSU(3)xU(1) for even n. These theories are interesting in that no dynamical...

Phenomenological Constraints on the Higgs as Pseudo-Goldstone Boson Mechanism in Supersymmetric GUT Theories (1995)

Csaki, Csaba, Randall, Lisa

There are few robust solutions to the doublet-triplet splitting problem in supersymmetric GUT theories. One of the more promising solutions is the Higgs as pseudo-Goldstone boson mechanism. In its...

Could the Supersymmetric Higgs Particles Naturally be Pseudo-Goldstone Bosons? (1995)

Berezhiani, Zurab, Csaki, Csaba, Randall, Lisa

The doublet-triplet splitting problem is perhaps the most problematic aspect of supersymmetric grand unified theories. It can be argued that the most natural reason for the Higgs doublets to be light...

The ACCMM Model and the Heavy Quark Expansion (1993)

Csaki, Csaba, Randall, Lisa

The ACCMM model predicts the lepton spectrum from $B$ meson decay by assuming the meson disintegrates into a spectator quark of definite mass and momentum distribution and an off shell $b$ quark...

Reforma agraria y reestructuración del sector agrario en los antiguos países socialistas de Europa (1993)

Csaki, Csaba, Lerman, Zvi

Los agricultores no se apresuran a abandonar las grandes estructuras para crear su propia explotación agraria en tierras privadas. Antes bien, las grandes explotaciones agrarias se reorganizan en...

La utilización de la tierra y el desarrollo agrario: el caso de Hungria (1986)

Una perspectiva de la evolución de la oferta y la demanda en los países del Comecon (1985)

Status of Agricultural Reforms in Lithuania: 1995 - 1997

En este trabajo se presenta el Modelo Agrícola COMECON, diseñado para analizar y predecir la evolución futura de las principales producciones agrarias de los países del COMECON. El modelo se...

Csaki, Csaba, Meyers, William H., Kazlauskiene, Natalija

Land policies and evolving farm structures in transition countries

Lerman, Zvi, Csaki, Csaba, Feder, Gershon

The authors review the role of land policies in the evolving farm structure of transition countries in Central and Eastern Europe (CEE) and the Commonwealth of Independent States (CIS). They show how...

Agriculture and the transition to the market

Brooks, Karen M., Guasch, Jose Luis, Braverman, Avishay, Csaki, Csaba

Agricultural sectors in Eastern and Central Europe are large so that changes in producer prices, farm employment, and land ownership affect substantial numbers of people. In the past, food in the...

Transformation of agriculture in central Eastern Europe andthe former USSR : major policy issues and perspectives

The changing farming structure in Russia: status and potential solutions

The author surveys agricultural reform to date, identifies key policy issues, and outlines potential scenarios for the transformation of agriculture in Bulgaria, Czechoslovakia, the former German...

Economic management and organization of Hungarian agriculture

Agricultural higher education in transforming Central and Eastern Europe