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Reggeon Field Theory and the phases of QCD

Description: We propose a Reggeon Field Theory phase diagram involving Sub-critical and Super-critical Pomeron behavior and the Expanding Disc. We describe the derivation of Reggeon Field Theory from QCD using infra-red analysis of the reggeon diagrams of the spontaneously broken theory. Matching the Reggeon Field Theory phase-diagram to that of lattice QCD with many fermions has significant implications for the chiral properties of continuum QCD when the number of flavors is less than the maximum allowed by asymptotic freedom. 19 refs., 7 figs.
Date: July 21, 1987
Creator: White, A.R.
Partner: UNT Libraries Government Documents Department

Diffractive dissociation and new quarks

Description: We argue that the chiral limit of QCD can be identified with the strong (diffractive dissociation) coupling limit of reggeon field theory. Critical Pomeron scaling at high energy must then be directly related to an infra-red fixed-point of massless QCD and so requires a large number of flavors. This gives a direct argument that the emergence of diffraction-peak scaling, KNO scaling etc. at anti p-p colliders are evidence of a substantial quark structure still to be discovered.
Date: April 1, 1983
Creator: White, A.R.
Partner: UNT Libraries Government Documents Department

Diffraction theory in QCD and beyond

Description: A study of the Pomeron in QCD is briefly outlined. Implications for the production of W/sup +/W/sup -/ and Z/sup 0/Z/sup 0/ pairs are described and the possibility that the electroweak scale is a major strong-interaction threshold discussed. The application of Pomeron phase-transition theory to SU(5) dynamical symmetry breaking is suggested and the related ''strong-interaction'' properties of the photon briefly mentioned.
Date: December 11, 1987
Creator: White, A.R.
Partner: UNT Libraries Government Documents Department

QCD diffraction: a critical phenomenon reflecting both confinement and chiral-symmetry breaking

Description: Arguments are presented for studying soft diffractive physics at anti p-p colliders in terms of Critical Pomeron Reggeon Field Theory. It is emphasized that both confinement and chiral-symmetry breaking play a vital role in the occurrence of the Critical Pomeron in QCD. SU(3) is the unique strong-interaction gauge group giving the Critical Pomeron and the maximum number of quarks allowed by asymptotic freedom is required for criticality.
Date: July 1, 1982
Creator: White, A.R.
Partner: UNT Libraries Government Documents Department

The QCD vacuum at infinite momentum

Description: We outline how ''topological confinement'' can be seen by the analysis of Regge limit infra-red divergences. We suggest that it is a necessary bridge between conventional confinement and the parton model at infinite momentum. It is produced by adding a chiral doublet of color sextet quarks to conventional QCD. An immediate signature of the resultant electroweak symmetry breaking would be large cross-sections for W/sup +/W/sup /minus// and Z/sup 0/Z/sup 0/ pairs at the CERN and Fermilab /bar p/p colliders. 24 refs.
Date: November 18, 1988
Creator: White, A.R.
Partner: UNT Libraries Government Documents Department

Need to plan for a full-scale lns-physics program at the SSC

Description: Arguments for a full lns physics program at the SSC are enumerated and elaborated on. They are: first - the inadequacy of data from a minimal program, second - the potential fundamental significance of a high-energy soft physics collective phenomenon and third - the possible diffractive production of much of the interesting new physics that will be searched for.
Date: March 1, 1984
Creator: White, A.R.
Partner: UNT Libraries Government Documents Department

A unique SU(5) and SO(10) unification with complete dynamical symmetry breaking

Description: A unique asymptotically free, anomaly-free, SU(5) gauge theory is proposed as a possible complete unification of the standard model in which all symmetry-breaking is dynamical. The asymptotic freedom constraint is saturated, removing renormalon divergences and leaving well-defined instanton interactions as the only non-perturbative ingredient of the theory. Consequently, it is argued, topological vacuum polarization of a very heavy, unconventional quantum number, quark sector dominates the dynamics, producing SU(5) symmetry breaking and a three generation low energy spectrum. Electroweak symmetry breaking is due to a chiral condensate of color sextet quarks. The embedding of the theory in a single SO(10) representation is used for the dynamical analysis and may also have physical significance. 22 refs., 5 figs., 2 tabs.
Date: August 1, 1986
Creator: Kang, Kyungsik & White, A.R.
Partner: UNT Libraries Government Documents Department

Chiral symmetry breaking in gauge theories from Reggeon diagram analysis

Description: It is argued that reggeon diagrams can be used to study dynamical properties of gauge theories containing a large number of massless fermions. SU(2) gauge theory is studied in detail and it is argued that there is a high energy solution which is analogous to the solution of the massless Schwinger model. A generalized winding-number condensate produces the massless pseudoscalar spectrum associated with chiral symmetry breaking and a trivial'' S-Matrix.
Date: December 16, 1991
Creator: White, A.R.
Partner: UNT Libraries Government Documents Department

The supercritical pomeron in QCD.

Description: Deep-inelastic diffractive scaling violations have provided fundamental insight into the QCD pomeron, suggesting a single gluon inner structure rather than that of a perturbative two-gluon bound state. This talk outlines a derivation of a high-energy, transverse momentum cut-off, confining solution of QCD. The pomeron, in first approximation, is a single reggeized gluon plus a ''wee parton'' component that compensates for the color and particle properties of the gluon. This solution corresponds to a super-critical phase of Reggeon Field Theory.
Date: June 29, 1998
Creator: White, A. R.
Partner: UNT Libraries Government Documents Department

The anomaly and reggeon field theory in QCD

Description: The appearance of the U(1) anomaly in the interactions of reggeized gluons is described. Also discussed is the crucial role the anomaly can play in providing the non-perturbative properties necessary for a transition from gluon and quark reggeon diagrams to hadron reggeons and a reggeon field theory description of the pomeron.
Date: September 14, 2000
Creator: White, A. R.
Partner: UNT Libraries Government Documents Department

The triangle anomaly in the tripple-regge limit

Description: The U(l) triangle anomaly is present, as an infra-red divergence, in the six-reggeon triple-regge interaction vertex obtained from a maximally non-planar Feynman diagram in the full triple-regge limit of three-to-three quark scattering.
Date: November 22, 1999
Creator: White, A. R.
Partner: UNT Libraries Government Documents Department

Solving QCD via multi-Regge theory.

Description: To solve QCD at high-energy the authors must simultaneously find the hadronic states and the exchanged pomeron (IP) giving UNITARY scattering amplitudes. Experimentally, the IP {approximately} a Regge pole at small Q{sup 2} and a single gluon at larger Q{sup 2}. (F{sub 2}{sup D}-H1, dijets-ZEUS). In the solution which the author describes, these non-perturbative properties of the IP are directly related to the non-perturbative confinement and chiral symmetry breaking properties of hadrons.
Date: November 4, 1998
Creator: White, A. R.
Partner: UNT Libraries Government Documents Department

Solving QCD using multi-regge theory.

Description: This talk outlines the derivation of a high-energy, transverse momentum cut-off, solution of QCD in which the Regge pole and ''single gluon'' properties of the pomeron are directly related to the confinement and chiral symmetry breaking properties of the hadron spectrum. In first approximation, the pomeron is a single reggeized gluon plus a ''wee parton'' component that compensates for the color and particle properties of the gluon. This solution corresponds to a supercritical phase of Reggeon Field Theory.
Date: July 13, 1998
Creator: White, A. R.
Partner: UNT Libraries Government Documents Department

Solving QCD via multi-Regge theory.

Description: A high-energy, transverse momentum cut-off, solution of QCD is outlined. Regge pole and single gluon properties of the pomeron are directly related to the confinement and chiral symmetry breaking properties of the hadron spectrum. This solution, which corresponds to a supercritical phase of Reggeon Field Theory, may only be applicable to QCD with a very special quark content.
Date: November 4, 1998
Creator: White, A. R.
Partner: UNT Libraries Government Documents Department

Light quarks and small X physics

Description: The significance of the low k{perpendicular} part of the Lipatov equation for the QCD soft Pomeron is discussed. It is then argued that light quarks are essential for the emergence of confinement and a Pomeron with the right physical properties. The implications for small {times} parton distributions are considered.
Date: June 15, 1992
Creator: White, A. R.
Partner: UNT Libraries Government Documents Department

Higher-order Lipatov kernels and the QCD Pomeron

Description: Three closely related topics are covered. The derivation of O(g{sup 4}) Lipatov kernels in pure glue QCD. The significance of quarks for the physical Pomeron in QCD. The possible inter-relation of Pomeron dynamics with Electroweak symmetry breaking.
Date: August 12, 1994
Creator: White, A. R.
Partner: UNT Libraries Government Documents Department

New strong interactions above the electroweak scale

Description: Theoretical arguments for a new higher-color quark sector, based on Pomeron physics in QCD, are briefly described. The electroweak symmetry-breaking, Strong CP conservation, and electroweak scale CP violation, that is naturally produced by this sector is also outlined. A further consequence is that above the electroweak scale there will be a radical change in the strong interaction. Electroweak states, in particular multiple W`s and Z`s, and new, semi-stable, very massive, baryons, will be commonly produced. The possible correlation of expected phenomena with a wide range of observed Cosmic Ray effects at and above the primary spectrum knee is described. Related phenomena that might be seen in the highest energy hard scattering events at the Fermilab Tevatron, some of which could be confused with top production, are also briefly discussed.
Date: August 9, 1994
Creator: White, A. R.
Partner: UNT Libraries Government Documents Department

The Pomeron and QCD with many light quarks

Description: An outline is given of the physics relating the Pomeron phase transition to the anomaly in QCD with many massless quarks. Implications for the existence of a further quark sector and its relation to dynamical electroweak symmetry breaking are described.
Date: August 26, 1993
Creator: White, A. R.
Partner: UNT Libraries Government Documents Department

t-Channel unitarity construction of small-x kernels

Description: In the leading-log approximation, the small-x behavior of parton distributions in QCD is derived from the BFKL evolution equation. The authors describe the ion as a reggeon Bethe-Salpeter equation and discuss the use of reggeon diagrams to obtain 2-2 and 2-4 reggeon interactions at O(g{sup 4}). They then outline the dispersion theory basis of multiparticle j-plane analysis and describe how a gauge theory can be studied by combining Ward identity constraints with the group structure of reggeon interactions. Gluon reggeization, the O(g{sup 2}) BFKL kernel and O(g{sup 4}) corrections to it, are derived within this formalism. They give an explicit expression for the O(g{sup 4}) forward ``parton`` kernel in terms of logarithms and evaluate the eigenvalues. A separately infra-red finite component with a holomorphically factorizable spectrum is shown to be present and conjectured to be a new leading-order partial-wave amplitude. A comparison is made with Kirschner`s discussion of O(g{sup 4}) contributions from the multi-Regge effective action.
Date: 1994-12~
Creator: Coriano, C. & White, A. R.
Partner: UNT Libraries Government Documents Department

Gauge theory high-energy behavior from J-plane unitarity

Description: In a non-abelian gauge theory the t-channel multiparticle unitarity equations continued in the complex j-plane can be systematically expanded around j = 1. The combination of Ward identity constraints with unitarity is sufficient to produce directly many results obtained by Regge limit leading-log and next-to-leading log momentum space calculations. The O(g{sup 2}) BFKL kernel is completely determined. O(g{sup 4}) contributions to the kernel are also determined, including the leading contribution of a new partial-wave amplitude--previously identified as a separate forward component with a holomorphically factorizable spectrum. For this amplitude the only scale ambiguity is the overall normalization and it is anticipated to be a new conformally invariant kernel. The results suggest that all conformally invariant reggeon interactions are determined by t-channel unitarity.
Date: December 31, 1995
Creator: Coriano, C. & White, A.R.
Partner: UNT Libraries Government Documents Department

Excess cross-sections at the electroweak scale in the sextet quark {open_quotes}standard model{close_quotes}

Description: If dynamical electroweak symmetry breaking is due to a flavor doublet of color sextet quarks, enhanced electroweak scale QCD instanton interactions may produce a large top mass, raise the {eta}{sub 6} axion mass, and also explain the excesses in the DIS cross-section at HERA and jet cross-sections at the Tevatron.
Date: June 30, 1997
Creator: White, A.R.
Partner: UNT Libraries Government Documents Department

The Pomeron beyond BFKL

Description: Conformally invariant reggeon interactions derived from t-channel unitarity are discussed and progress towards understanding the {open_quotes}physical Pomeron{close_quotes}, via massless quark reggeon interactions, is briefly out-lined.
Date: May 12, 1997
Creator: White, A. R.
Partner: UNT Libraries Government Documents Department

The hard gluon component of the QCD Pomeron

Description: The authors argue that deep-inelastic diffractive scaling provides fundamental insight into the QCD Pomeron. The logarithmic scaling violations seen experimentally are in conflict with the scale-invariance of the BFKL Pomeron and with phenomenological two-gluon models. Instead the Pomeron appears as a single gluon at short-distances, indicating the appearance of a Super-Critical phase of Reggeon Field Theory. That the color compensation takes place at a longer distance is consistent with the Pomeron carrying odd color charge parity.
Date: October 20, 1996
Creator: White, A.R.
Partner: UNT Libraries Government Documents Department

Deep-inelastic diffraction and the pomeron as a single gluon

Description: Deep-inelastic diffractive scaling provides fundamental insight into the QCD pomeron. It is argued that single gluon domination of the structure function, together with the well-known Regge pole property, determines that the pomeron carries color-change parity C{sub c} = {minus}1 and, at short distances, is in a super-critical phase of Reggeon Field Theory. The main purpose of the talk is to describe the relationship of the super-critical pomeron to QCD.
Date: September 3, 1997
Creator: White, A.R.
Partner: UNT Libraries Government Documents Department