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Titolo:
Global conformal anomaly in N=2 string - art. no. 026001
Autore:
Chalmers, G; Siegel, W;
Indirizzi:
Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA Argonne NatlLab Argonne IL USA 60439 Energy Phys, Argonne, IL 60439 USA SUNY Stony Brook, CN Yang Inst Theoret Phys, Stony Brook, NY 11794 USA SUNY Stony Brook Stony Brook NY USA 11794 Phys, Stony Brook, NY 11794 USA
Titolo Testata:
PHYSICAL REVIEW D
fascicolo: 2, volume: 6402, anno: 2001,
pagine: 6001 -
SICI:
0556-2821(20010715)6402:2<6001:GCAINS>2.0.ZU;2-8
Fonte:
ISI
Lingua:
ENG
Soggetto:
SELF-DUAL GRAVITY; YANG-MILLS THEORY; GAUGE-THEORIES; HELICITY AMPLITUDES; MULTIPLE BREMSSTRAHLUNG; EXTENDED SUPERSYMMETRY; SIMPLIFYING ALGEBRA; GLUON AMPLITUDES; FEYNMAN GRAPHS; LOOP;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
--discip_EC--
Citazioni:
66
Recensione:
Indirizzi per estratti:
Indirizzo: Chalmers, G Argonne Natl Lab, Div High Energy Phys, 9700 S Cass Ave, Argonne, IL 60439USA Argonne Natl Lab 9700 S Cass Ave Argonne IL USA 60439 60439USA
Citazione:
G. Chalmers e W. Siegel, "Global conformal anomaly in N=2 string - art. no. 026001", PHYS REV D, 6402(2), 2001, pp. 6001

Abstract

We show the existence of a global anomaly in the one-loop graphs of N=2 string theory, defined by sewing tree amplitudes, unless spacetime supersymmetry is imposed. The anomaly is responsible for the non-vanishing maximally helicity violating amplitudes. The supersymmetric completion of the N=2 string spectrum is formulated by extending the previous cohomological analysiswith an external spin factor; the target space-time spin-statistics of these individual fields in a self-dual background are compatible with previouscohomological analysis as fields of arbitrary spin may be bosonized into one another. We further analyze duality relations between the open and closed string amplitudes and demonstrate this in the supersymmetric extension ofthe target space-time theory through the insertion of zero-momentum operators.

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Documento generato il 15/07/20 alle ore 05:34:12