Results 21 to 30 of about 320,134 (341)
The `BRST-invariant' Condensate of Dimension Two in QCD [PDF]
, 2003 The status of the `BRST-invariant' condensate of mass dimension two in QCD is explained. The condensate is only invariant under an `on-shell' BRST symmetry which includes a partial gauge-fixing.
't Hooft +20 more
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Neutrino masses from gauge symmetries [PDF]
Nuclear Physics B, 1995 A very simple extension of the standard model to include an Abelian family symmetry is able to describe the hierarchy of quark and lepton masses and their mixing angles together with the unification of gauge couplings. We consider the implications of this model for neutrino masses and mixing angles and show that they are determined up to a discrete ...
Dreiner, H +4 more
openaire +3 more sources
Gauge symmetry from decoupling
Nuclear Physics B, 2017 Gauge symmetries emerge from a redundant description of the effective action for light degrees of freedom after the decoupling of heavy modes. This redundant description avoids the use of explicit constraints in configuration space.
C. Wetterich
doaj +1 more source
Physical Review Research, 2020 We explore the low-energy dynamics of the four siblings of Lorentz symmetry enriched SU(2) Yang-Mills theories with a theta term at θ=π in (3+1)d. Due to a mixed anomaly between time reversal symmetry and the one-form center symmetry, the low-energy ...
Juven Wang, Yi-Zhuang You, Yunqin Zheng
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Gauge symmetry breaking in gauge theories---In search of clarification [PDF]
, 2011 The paper investigates the spontaneous breaking of gauge symmetries in gauge theories from a philosophical angle, taking into account the fact that the notion of a spontaneously broken local gauge symmetry, though widely employed in textbook expositions ...
Friederich, Simon
core +4 more sources
Geometric phases for mixed states and decoherence [PDF]
, 2006 The gauge invariance of geometric phases for mixed states is analyzed by using the hidden local gauge symmetry which arises from the arbitrariness of the choice of the basis set defining the coordinates in the functional space.
Aharonov +34 more
core +2 more sources
Gauge-Higgs Unification Models in Six Dimensions with S2/Z2 Extra Space and GUT Gauge Symmetry
Advances in High Energy Physics, 2012 We review gauge-Higgs unification models based on gauge theories defined on six-dimensional spacetime with S2/Z2 topology in the extra spatial dimensions. Nontrivial boundary conditions are imposed on the extra S2/Z2 space.
Cheng-Wei Chiang +2 more
doaj +1 more source
Instantons, symmetries and anomalies in five dimensions
Journal of High Energy Physics, 2021 All five-dimensional non-abelian gauge theories have a U(1) I global symmetry associated with instantonic particles. We describe an obstruction to coupling U(1) I to a classical background gauge field that occurs whenever the theory has a one-form center
Pietro Benetti Genolini, Luigi Tizzano
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Gauge Symmetries, Symmetry Breaking, and Gauge-Invariant Approaches
, 2023 Gauge symmetries play a central role, both in the mathematical foundations as well as the conceptual construction of modern (particle) physics theories. However, it is yet unclear whether they form a necessary component of theories, or whether they can be eliminated. It is also unclear whether they are merely an auxiliary tool to simplify (and possibly
Berghofer, Philipp +6 more
openaire +3 more sources
Probing F-theory With Branes [PDF]
, 1996 Last week, A. Sen found an explicit type I string compactification dual to the eight-dimensional F-theory construction with SO(8)^4 nonabelian gauge symmetry.
Argyres +19 more
core +2 more sources