Results 11 to 20 of about 110,537 (343)
Weyl fermions in a non-abelian gauge background and trace anomalies [PDF]
Journal of High Energy Physics, 2019 We study the trace and chiral anomalies of Weyl fermions in a non-abelian gauge background in four dimensions. Using a Pauli-Villars regularization we identify the trace anomaly, proving that it can be cast in a gauge invariant form, even in the presence
Fiorenzo Bastianelli, Matteo Broccoli
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Gauge-independent trace anomaly for gravitons [PDF]
Physical Review D, 1995 We show that the trace anomaly for gravitons calculated using the usual effective action formalism depends on the choice of gauge when the background spacetime is not a solution of the classical equation of motion, that is, when off-shell. We then use the gauge independent Vilkovisky-DeWitt effective action to restore gauge independence to the off ...
H. T. Cho, R. Kantowski
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8d gauge anomalies and the topological Green-Schwarz mechanism
Journal of High Energy Physics, 2017 String theory provides us with 8d supersymmetric gauge theory with gauge algebras suN,so2N,spN,e6,e7ande8 $$ \mathfrak{s}\mathfrak{u}(N),\mathfrak{s}\mathfrak{o}(2N),\mathfrak{s}\mathfrak{p}(N),{\mathfrak{e}}_6,{\mathfrak{e}}_7\kern0.5em \mathrm{and ...
Iñaki García‐Etxebarria +4 more
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Z-string global gauge anomaly and Lorentz non-invariance [PDF]
, 1998 Certain (3+1)-dimensional chiral non-Abelian gauge theories have been shown to exhibit a new type of global gauge anomaly, which in the Hamiltonian formulation is due to the fermion zero-modes of a Z-string-like configuration of the gauge potential and ...
F.R. Klinkhamer
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Quantization of anomaly coefficients in 6D N=1,0 $$ \mathcal{N}=\left(1,\;0\right) $$ supergravity
Journal of High Energy Physics, 2018 We obtain new constraints on the anomaly coefficients of 6D N=10 $$ \mathcal{N}=\left(1,0\right) $$ supergravity theories using local and global anomaly cancellation conditions.
Samuel Monnier +2 more
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Dark matter in anomaly-free gauge extensions [PDF]
SciPost Physics, 2018 A consistent model for vector mediators to dark matter needs to be anomaly-free and include a scalar mode from mass generation. For the leading U(1) extensions we review the structure and constraints, including kinetic mixing at loop level.
Martin Bauer +4 more
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Comments on QCD3 and anomalies with fundamental and adjoint matter
Journal of High Energy Physics, 2022 ’t Hooft anomaly matching is powerful for constraining the low energy phases of gauge theories. In 3d one common anomaly is the parity anomaly in a T-symmetric theory where one cannot gauge the global symmetry group without breaking the time-reversal ...
Nakarin Lohitsiri, Tin Sulejmanpasic
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Noncommutative supersymmetric gauge anomaly [PDF]
Physics Letters B, 2001 14 pages, plain Latex, no ...
Grisaru, MT, PENATI, SILVIA
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Note on discrete gauge anomalies [PDF]
Physical Review D, 1992 We consider the probem of gauging discrete symmetries. All valid constraints on such symmetries can be understood in the low energy theory in terms of instantons. We note that string perturbation theory often exhibits global discrete symmetries, which are broken non-perturbatively.
Banks, T., Dine, M.
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Discrete anomaly matching for the Pouliot type dualities
Nuclear Physics B, 2022 We compute the 't Hooft anomalies of discrete symmetries in the Pouliot type dual theories and check their anomaly matching conditions. The Pouliot type dual theories we will consider in this paper are two dual pairs; the dual pair of N=1 supersymmetric ...
Teruhiko Kawano
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