We find a low energy effective action for N = 4 strings manifestly invariant under the full O(6,22,Z) internal duality group. That theory is uniquely specified by its gauge symmetry, which turns out to be an infinite dimensional general Kac-Moody algebra. On any string background the Higgs mechanism leaves only finitely many light fields. The corresponding mass spectrum is studied, and shown to agree with string theory. Orbifold truncations to N = 1, 2 theories are discussed.
|Original language||American English|
|Number of pages||7|
|Journal||Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics|
|State||Published - 23 Aug 1990|
Bibliographical noteFunding Information:
This work was supported in part by the Director, Office of Energy Research, Office of High Energy and Nuclear Physics, Division of High Energy Physics of the US Department of Energy under Contract DE-AC03-76SF00098, and in part by the National Science Foundation under Research Grant No. PHY85-15857. Supported in part by a Chaim Weizmann fellowship. E-mail address: GIVEON@LBL.bitnet. On leave of absence from INFN, Sezione di Pisa, I-56100 Pisa, Italy. E-mail address: PORRATI@LBL.bitnet.