Results 51 to 60 of about 1,339 (163)
Universal Entanglement and an Information‐Complete Quantum Theory
Advanced Physics Research, EarlyView.This Perspective summarize an informationcomplete quantum theory which describes a fully quantum world without any classical systems and concepts. Here spacetime/gravity, having to be a physical quantum system, universally entangles matter (matter fermions and their gauge fields) as an indivisible trinity, and encodes information‐complete physical ...
Zeng‐Bing Chen
wiley +1 more source
Proton decay from quark and lepton compositeness
Journal of High Energy Physics, 2022 Within a chiral SU(15) gauge theory in which the Standard Model fermions are bound states of massless preons, we show that proton-decay operators are likely induced at the compositeness scale, Λpre.
Benoît Assi, Bogdan A. Dobrescu
doaj +1 more source
Contributions to Plasma Physics, EarlyView.ABSTRACT The properties of plasmas in the low‐density limit are described by virial expansions. Analytical expressions are known for the lowest virial coefficients from Green's function approaches. Recently, accurate path‐integral Monte Carlo (PIMC) simulations were performed for the hydrogen plasma at low densities by Filinov and Bonitz (Phys. Rev.
Gerd Röpke +3 more
wiley +1 more source
Top-philic scalar Dark Matter with a vector-like fermionic top partner
Journal of High Energy Physics, 2016 We consider a simple extension of the Standard Model with a scalar top-philic Dark Matter (DM) $S$ coupling, apart from the Higgs portal, exclusively to the right-handed top quark $t_R$ and a colored vector-like top partner $T$ with a Yukawa coupling $y_{ST}$ which we call the topVL portal. When the Higgs portal is closed and $y_{ST}$ is perturbative $
Baek, Seungwon, Ko, Pyungwon, Wu, Peiwen
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$SU(5)\times{U(1)'}$ models with a vector-like fermion family
, 2021 Motivated by experimental measurements indicating deviations from the Standard Model predictions we discuss F-theory inspired models, which, in addition to the three chiral generations contain a vector-like complete fermion family. The analysis takes place in the context of $SU(5)\times U(1)'$ GUT embedded in an $E_8$ covering group which is associated
Karozas, A. +2 more
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Asymptotically Safe Standard Model via Vectorlike Fermions [PDF]
Physical Review Letters, 2017 5 pages, 3 figures, typos ...
Mann, R. B. +5 more
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Journal of High Energy Physics, 2022 In a simple extension of the standard model (SM), a pair of vector like lepton doublets (L 1 and L 2) and a SU(2) L scalar doublet (η) have been introduced to help in accommodating the discrepancy in determination of the anomalous magnetic moments of the
Bibhabasu De +3 more
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Topological Photonic Devices and Circuits at Terahertz Frequencies
Laser &Photonics Reviews, EarlyView.This review examines how 3D topological insulators and emerging topological photonic phases enable robust, low‐loss and defect‐immune terahertz devices. Fundamental properties, device implementations and topological transport mechanisms are surveyed, revealing new opportunities for reconfigurable, high‐performance THz components and scalable ...
Samane Kalhor +3 more
wiley +1 more source
Vector-like fermions could enhance the B− mixing
Physics Letters B, 1989 Abstract The possibility of enhancing the B− b mixing without a large top mass is proposed within the context of theories which enlarge the standard model by new heavy down quarks, isosinglets under SU(2) × U(1). A model which realizes this idea is shown.
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Constraining models with vector-like fermions from FCNC in K and B physics [PDF]
Nuclear Physics B, 2001 In this work, we update the constraints on tree level FCNC couplings in the framework of a theory with n isosinglet vector-like down quarks. In this context, we emphasize the sensitivity of the B -> J/psi K_S CP asymmetry to the presence of new vector-like down quarks. This CP asymmetry, together with the rare decays B -> X_{s,d} l bar{l} and K -&
Barenboim Szuchman, Gabriela Alejandra +2 more
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