Results 21 to 30 of about 120 (104)
The moduli space of quasistable spin curves
Collectanea Mathematica, 2022 We study a compactification of the moduli space of theta characteristics, giving a modular interpretation of the geometric points and describing the boundary stratification. This space is different from the moduli space of spin curves. The modular description and the boundary stratification of the new compactification are encoded by a tropical moduli ...
Abreu, Alex +2 more
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Role of A‐Site Composition in Charge Transport in Lead Iodide Perovskites
Advanced Energy and Sustainability Research, Volume 3, Issue 11, November 2022., 2022 The electronic properties of metal halide perovskites are measured with time‐resolved microwave conductivity, as a function of A‐site composition. It is found that a small percentage of Cs leads to a larger carrier mobility and lifetime and that compositions with a tolerance factor close to 0.9 generally show lower performance than those closer to 0.8 ...
Min Ji Hong, John G. Labram
wiley +1 more source
Breathing Dissipative Soliton Molecule Switching in a Bidirectional Mode‐Locked Fiber Laser
Advanced Photonics Research, Volume 3, Issue 4, April 2022., 2022 The transient switching dynamics of breathing soliton molecules (BSMs) are explored in a bidirectional ultrafast fiber laser, specifically triggered at different parameter spaces of saturable absorption with manipulation polarization. The all‐optical switching of breather molecules of two or three solitons with different binding temporal separation has
Yi Zhou +3 more
wiley +1 more source
Polarimetric Direction of Arrival Estimations Based on Adaptive Linear Time‐Frequency Transforms
Wireless Communications and Mobile Computing, Volume 2022, Issue 1, 2022., 2022 A spatially polarized time‐frequency distribution (SPTFD) based on dual‐polarized double‐fed antenna arrays is adapted to deal with polarization‐unstable signals. A linear time‐frequency (TF) representation was used for an instantaneous frequency (IF) estimate, primarily due to its simplicity and immunity to cross‐interference. Using a set of linear TF
Shao Shuai +4 more
wiley +1 more source
Search for heavy quasistable leptons
Nuclear Physics B, 1973 Negative results of a search for heavy quasistable charged leptons at the IHEP accelerator are reported. For the selection of heavy leptons a system of scintillation and gas Cerenkov counters was used. The upper limit estimations of the differential cross sections for heavy lepton production in pN collisions at Ep = 70 GeV are, for example, d2 σ/dpω (p
Yu.B. Bushnin +8 more
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Search for heavy quasistable leptons
Physics Letters B, 1972 Abstract Negative results of a search for heavy quasistable charge leptons at the IHEP accelerator are reported. For the selection of heavy leptons a system of scintillation and gas Cherenkov counters was used. The upper limit estimation of the differential cross-section for heavy lepton production in pN-collisions at E p = 70 GeV is d 2 δ λ (
S.V. Golovkin +7 more
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Long range trap models on Z and quasistable processes [PDF]
Journal of Theoretical Probability, 2013 Paper accepted for publication in the Journal of Theoretical ...
Barreto-Souza, W., Fontes, L. R. G.
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Are there quasistable strange baryons with anticharm or antibeauty? [PDF]
Journal of Physics G: Nuclear and Particle Physics, 1998 In some models, exotic baryons with strangeness and anticharm or antibeauty should exist and even be stable against strong decay. We consider the stability of such possible exotic baryons, which in the constituent quark picture are called pentaquarks (each is composed of four quarks and an antiquark).
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Quasistable charginos in ultraperipheral proton-proton collisions at the LHC [PDF]
Journal of High Energy Physics, 2020 Abstract We propose a model-independent approach for the search of charged long-lived particles produced in ultraperipheral collisions at the LHC. The main idea is to improve event reconstruction at ATLAS and CMS with the help of their forward detectors.
S. I. Godunov +4 more
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On the mass and width of the -boson and other relativistic quasistable particles [PDF]
Nuclear Physics B, 2000 The ambiguity in the definition for the mass and width of relativistic resonances is discussed, in particular for the case of the Z-boson. This ambiguity can be removed by requiring that a resonance's width $Γ$ (defined by a Breit-Wigner lineshape) and lifetime $τ$ (defined by the exponential law) always and exactly fulfill the relation $Γ= \hbar/τ ...
Bohm, Arno R., Harshman, N. L.
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