Results 11 to 20 of about 424,992 (282)

Symmetry and symmetry breaking in science and arts

open access: yesProceedings (European Academy of Sciences and Arts), 2022
In this review article, symmetry and symmetry breaking are considered as complementary principles in science and arts. It starts with symmetry and symmetry breaking in early world views of nature and art.
Klaus Mainzer
doaj   +1 more source

Breaking Symmetries [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2010
A well-known result by Palamidessi tells us that πmix(the π-calculus with mixed choice) is more expressive than πsep(its subset with only separate choice). The proof of this result analyses their different expressive power concerning leader election in symmetric networks.
Peters, Kirstin, Nestmann, Uwe
openaire   +8 more sources

Bottom quark and tau lepton masses in a toy $$\textrm{SU}(6)$$ SU ( 6 ) model

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
We study a toy $$\textrm{SU}(6)$$ SU ( 6 ) model with the symmetry breaking pattern of the extended 331 symmetry of $$\textrm{SU}(3)_c \otimes \textrm{SU}(3)_W \otimes \textrm{U}(1)_X$$ SU ( 3 ) c ⊗ SU ( 3 ) W ⊗ U ( 1 ) X .
Ning Chen, Ying-nan Mao, Zhaolong Teng
doaj   +1 more source

Effects of symmetry-breaking on electromagnetic backscattering

open access: yesScientific Reports, 2021
Systems with a discrete rotational symmetry $$2\pi /n$$ 2 π / n where $$n\ge 3$$ n ≥ 3 that also have electromagnetic duality symmetry exhibit zero backscattering.
Mohamed Ismail Abdelrahman   +3 more
doaj   +1 more source

Semaphorin Breaks Symmetry [PDF]

open access: yesNeuron, 2011
Axon-dendrite polarity is likely instructed by extrinsic cues in the developing nervous system, though the mechanisms governing this process remain to be fully elucidated. In this issue of Neuron, Shelly et al. show that the axon guidance cue Semaphorin 3A can promote dendrite growth by inhibiting axon specification.
Howell, Audrey S., Shen, Kang
openaire   +2 more sources

Selection rules for breaking selection rules

open access: yesNew Journal of Physics, 2021
Floquet systems often exhibit dynamical symmetries (DS) that govern the time-dependent dynamics and result in selection rules. When a DS is broken, selection rule deviations are expected.
Matan Even Tzur   +3 more
doaj   +1 more source

Division algebraic symmetry breaking

open access: yesPhysics Letters B, 2022
Reframing certain well-known particle models in terms of normed division algebras leads to two new results for BSM physics.(1) We identify a sequence of complex structures which induces a cascade of breaking symmetries: Spin(10) ↦ Pati-Salam ↦ Left-Right
N. Furey, M.J. Hughes
doaj   +1 more source

Magnetoexcitons Break Antiunitary Symmetries [PDF]

open access: yesPhysical Review Letters, 2017
We show analytically and numerically that the application of an external magnetic field to highly excited Rydberg excitons breaks all antiunitary symmetries in the system. Only by considering the complete valence band structure of a direct band gap cubic semiconductor, the Hamiltonian of excitons leads to the statistics of a Gaussian unitary ensemble ...
Schweiner, Frank   +2 more
openaire   +3 more sources

Symmetry Breaking Revisited [PDF]

open access: yesConstraints, 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

Are supersymmetric models with minimal particle content under tension for testing at LHC?

open access: yesPhysics Letters B, 2016
In supersymmetric models with minimal particle content and without large left-right squarks mixing, the conventional knowledge is that the Higgs Boson mass around 125 GeV leads to top squark masses O(10) TeV, far beyond the reach of colliders.
Abhijit Samanta   +2 more
doaj   +1 more source

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