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The Institute of Physics ( IOP ) по журналам "Journal of High Energy Physics"

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  • Glenn Barnich (1998-12-01)
    In the context of algebraic renormalization, the extended antifield formalism is used to derive the general forms of the anomaly consistency condition and of the Callan-Symanzik equation for generic gauge theories. A ...
  • Daniel Arnaudon (1997-12-01)
    We construct two quantum spin chains hamiltonians with quantum sl(2|1) invariance. These spin chains define variants of the Hubbard model and describe electron models with pair hoppings. A cubic algebra that ...
  • Achim Posthaus; Peter Overmann (1998-02-01)
    We propose a new method to measure the electroweak mixing angle in Z decays to tau leptons. For various tau decay channels optimal observables are constructed which yield the largest possible signal-to-noise ratio. These ...
  • Roberto Casalbuoni; Daniele Dominici; Stefania De Curtis; Aldo Deandrea; Raoul Gatto; John F. Gunion (1999-08-01)
    The procedures for studying a single narrow s-channel resonance or nearly degenerate resonances at a lepton collider, especially a muon collider, are discussed. In particular, we examine four methods for determining the ...
  • Horatiu Stefan Nastase; Warren Siegel (2000-10-01)
    We consider a geometric zero-radius limit for strings on AdS5S5, where the Anti-de Sitter hyperboloid becomes the projective lightcone. In this limit the fifth dimension becomes non dynamical, yielding a different ``holographic'' ...
  • Fred A. Dilkes; Dennis G.C. McKeon; Christian Schubert (1999-03-01)
    We further develop the new approach, proposed in part I, to computing the heat kernel associated with a Fermion coupled to vector and axial vector fields. We first use the path integral representation obtained for the ...
  • Gary T. Horowitz; Donald Marolf (1998-07-01)
    We discuss quotients of Anti-de Sitter (AdS) spacetime by a discrete group in light of the AdS-CFT correspondence. Some quotients describe closed universes which expand from zero volume to a maximum size and then contract. ...
  • Probir Roy; K. Sridhar (1999-07-01)
    An unambiguous identification of glueballs in experiments will be of great significance, because their existence is an important test of QCD. The proposal, advanced here, is to experimentally search for glueballs as peaks ...
  • Massimo Bianchi; Jose F. Morales (2000-03-01)
    We show that massless RR tadpoles in vacuum configurations with open and unoriented strings are always related to anomalies. RR tadpoles arising from sectors of the internal SCFT with non-vanishing Witten index are in ...
  • Constantin P. Bachas; Michael R. Douglas; Michael B. Green (1997-07-01)
    In certain circumstances when two branes pass through each other a third brane is produced stretching between them. We explain this phenomenon by the use of chains of dualities and the inflow of charge that is required ...
  • Björn Andreas; Gottfried Curio; Ruben Minasian (2000-09-01)
    Tadpole cancellation in F-theory on an elliptic Calabi-Yau fourfold XB3 demands some spacetime-filling three-branes (points in B3). If moved to the discriminant surface, which supports the gauge group, and dissolved into ...
  • Luis E. Ibáñez; Fernando Quevedo (1999-10-01)
    We consider the most general generation-independent U(1) gauge symmetry consistent with the presence of Yukawa couplings for all quarks and leptons in the SUSY version of the Standard Model. This U(1) has generically mixed ...
  • Tom Banks; Lubos Motl (2000-03-01)
    We construct the matrix description for a twisted version of the IIA string theory on S1 with fermions antiperiodic around a spatial circle. The result is a 2+1-dimensional U(N) U(N) nonsupersymmetric Yang-Mills theory ...
  • Björn Andreas (1998-12-01)
    We study a class of four dimensional, anisotropic string backgrounds and analyse their expansion and singularity structure. We will see how O(3,3) duality acts on this class and in particular realizes the Brandenberg ...
  • Nathan Seiberg (2000-09-01)
    Using the construction of D-branes with nonzero B field in the matrix model we give a physical interpretation of the known background independence in gauge theories on a noncommutative space. The background independent ...
  • Sonia Stanciu (2000-10-01)
    We show that a D-brane in a group manifold given by a (twisted) conjugacy class is characterised by a gauge invariant two-form field determined in terms of the matrix of gluing conditions. Using a quantisation ...
  • Ashoke Sen (1997-09-01)
    Two different mechanisms exist in non-perturbative String / M- theory for enhanced SU(N) (SO(2N)) gauge symmetries. It can appear in type IIA string theory or M-theory near an AN1 (DN) type singularity where membrnes wrapped ...
  • Michael Gutperle (1999-05-01)
    In the note a simple calculation of one loop threshold corrections for the SO(32) heterotic string is performed. In particular the compactification on T2 with a Wilson line breaking the gauge group to SO(16) SO(16) ...
  • Adi Armoni (2000-03-01)
    We suggest that orbifold field theories which are obtained from non-commutative = 4 SYM are UV finite. In particular, non-supersymmetric orbifold truncations might be finite even at finite values of Nc.
  • Sumit R. Das; Bahniman Ghosh (2000-06-01)
    A class of supergravity backgrounds have been proposed as dual descriptions of strong coupling large-N non-commutative Yang-Mills (NCYM) theories in 3+1 dimensions. However calculations of correlation functions in supergravity ...