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Publications Influence

Bounds on Universal Extra Dimensions

- T. Appelquist, H. Cheng, B. Dobrescu
- Physics
- 8 December 2000

We show that the bound from the electroweak data on the size of extra dimensions accessible to all the standard model elds is rather loose. These \universal" extra dimensions could have a… Expand

951 44- PDF

Dimensional reduction in quantum gravity

- T. Appelquist
- Physics
- 29 May 2008

The phenomenon of dimensional reduction in quantum theories of gravity is described. The five‐dimensional Kaluza‐Klein model is studied and the one‐loop effective potential, as a function of the… Expand

377 19

Infrared Singularities and Massive Fields

- T. Appelquist, J. Carazzone
- Physics
- 15 May 1975

We examine some problems associated with the low-momentum behavior of gauge theories and other renormalizable field theories. Our main interest is in the infrared structure of unbroken non-Abelian… Expand

824 16

Modern Kaluza-Klein Theories

- T. Appelquist, A. Chodos, P. G. O. Freund
- Physics
- 1987

532 14

The Physical spectrum of conformal SU(N) gauge theories

- T. Appelquist, Francesco Sannino
- Physics
- 18 June 1998

We investigate the physical spectrum of vector-like SU(N) gauge theories with infrared coupling close to but above the critical value for a conformal phase transition. We use dispersion relations,… Expand

137 9- PDF

Nonexotic Neutral Gauge Bosons

- T. Appelquist, B. Dobrescu, A. R. Hopper
- Physics
- 4 December 2002

We study theoretical and experimental constraints on electroweak theories including a new color-singlet and electrically-neutral gauge boson. We first note that the electric charges of the observed… Expand

143 7- PDF

High-temperature Yang-Mills theories and three-dimensional quantum chromodynamics

- T. Appelquist, R. Pisarski
- Physics
- 15 May 1981

We demonstrate that for sufficiently high temperature T the behavior of any four-dimensional gauge theory with small coupling constant a, at distances beyond the electrical Debye screening length… Expand

355 7

Enhanced Global Symmetries and The Chiral Phase Transition

- T. Appelquist, P. Silva, Francesco Sannino
- Physics
- 30 June 1999

We examine the possibility that the physical spectrum of a vectorlike gauge field theory exhibits an enhanced global symmetry near a chiral phase transition. A transition from the Goldstone phase to… Expand

78 7- PDF

The Nonlinear $\sigma$ Model in the Loop Expansion

- T. Appelquist, C. Bernard
- Physics
- 15 January 1981

The nonlinear sigma model in four dimensions is discussed in the context of the loop expansion. Since the model is perturbatively nonrenormalizable, divergences not of the form of the Lagrangian are… Expand

50 6

A new constraint on strongly coupled field theories

- T. Appelquist, A. Cohen, M. Schmaltz
- Physics
- 22 January 1999

We propose a new constraint on the structure of strongly coupled, asymptotically free field theories. The constraint takes the form of an inequality limiting the number of degrees of freedom in the… Expand

115 5- PDF