Results 11 to 20 of about 34,391 (232)
Light charged fermions in quantum gravity [PDF]
Physics Letters B, 2021 We study the impact of quantum gravity on a system of chiral fermions that are charged under an Abelian gauge group. Under the impact of quantum gravity, a finite value of the gauge coupling could be generated and in turn drive four-fermion interactions ...
Gustavo P. de Brito +2 more
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Charged fermions below 100 GeV
Journal of High Energy Physics, 2018 How light can a fermion be if it has unit electric charge? We revisit the lore that LEP robustly excludes charged fermions lighter than about 100 GeV.
Daniel Egana-Ugrinovic +2 more
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Fermion damping in a fermion-scalar plasma [PDF]
Physical Review D, 1999 In this article we study the dynamics of fermions in a fermion-scalar plasma. We begin by obtaining the effective in-medium Dirac equation in real time which is fully renormalized and causal and leads to the initial value problem. For a heavy scalar we find the novel result that the decay of the scalar into fermion pairs in the medium leads to damping ...
Boyanovsky, D. +4 more
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Displacement Transformations as a Tool to Study Many-Body Localization
Frontiers in Physics, 2021 We obtain eigenstates of interacting disorder Hamiltonians using unitary displacement transformations that rotate the state of the system. The method generates excited states if the strength of these transformations is chosen to optimize the energy ...
Pablo Serna +2 more
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Fermion number conservation isn't fermion conservation [PDF]
Nuclear Physics B - Proceedings Supplements, 1994 A nonperturbative regularization of the Standard Model may have a superficially undesirable exact global U(1) symmetry corresponding to exact fermion number conservation. We argue that such a formulation can still have the desired physics of fermion nonconservation, i.e. fermion particle creation and annihilation by sphaleron transitions. We illustrate
Bock, W., Hetrick, J.E., Smit, J.
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Sarrazola-j-i/Relic-Abundance-Dark-Fermions-Anihilation: Dark Matter.
, 2022 Relic abundace dark fermions anihilation in Z' masive gauge ...
Sarrazola J. I.
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Fermions coupled to skyrmions on S**3 [PDF]
, 2003 This paper discusses Skyrmions on the 3-sphere coupled to fermions. The resulting Dirac equation commutes with a generalized angular momentum G. For G = 0 the Dirac equation can be solved explicitly for a constant Skyrme configuration and also for a SO(4)
Krusch, Steffen
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Fermions without Fermion Fields [PDF]
Physical Review Letters, 2005 It is shown that an arbitrary Fermion hopping hamiltonian can be represented by a system with no fermion fields, generalising earlier results by M. Levin & X.G. Wen [Phys Rev B 67, 245316 (2003)]. All the operators in the hamiltonian of resulting description obey the principle of locality, that operators associated with different sites commute ...
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Multilocal Fermionization [PDF]
Letters in Mathematical Physics, 2012 18 pages.
Rehren, Karl-Henning, Tedesco, Gennaro
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Fermions, Skyrmions and the 3-sphere [PDF]
, 2009 This paper investigates a background charge one Skyrme field chirally coupled to light fermions on the 3-sphere. The Dirac equation for the system commutes with a generalized angular momentum or grand spin.
Stephen W. Goatham +3 more
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