Results 31 to 40 of about 155 (122)

Are there quasistable strange baryons with anticharm or antibeauty? [PDF]

open access: yesJournal 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).
openaire   +2 more sources

Quasistable charginos in ultraperipheral proton-proton collisions at the LHC [PDF]

open access: yesJournal 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
openaire   +4 more sources

Dual‐Mode Oscillations in SiOx‐Based Threshold Switching Devices for Unconventional Probabilistic Computing

open access: yesAdvanced Intelligent Discovery, Volume 2, Issue 3, June 2026.
To enable versatile unconventional computing, a single SiOx threshold switching device is engineered to exhibit controllable dual‐mode oscillation. By modulating the input voltage, the device selectively provides stable full oscillation for oscillatory neural networks and stochastic probabilistic oscillation for probabilistic bits and true random ...
Hyeonsik Choi   +3 more
wiley   +1 more source

Revealing Two Operation Modes of Perovskite Light‐Emitting Diodes Through Overshoot Pulses

open access: yesAdvanced Photonics Research, Volume 7, Issue 1, January 2026.
Short, high‐intensity overshoot pulses (OSPs) may be generated by perovskite light‐emitting diodes (PeLEDs) depending on electrical pump pulse parameters, offset and afterpulse voltages. OSPs reveal two PeLED operation modes: the recombination mode, favorable for the conventional EL but preventing OSPs, and the accumulation mode, enabling the formation
Rokas Gegevičius   +6 more
wiley   +1 more source

Qualitative stability of linear systems [PDF]

open access: yes, 1987
This paper provides a finitely computable graph-theoretic answer to the following question concerning linear dynamical systems: When, given only the signs of entries (+, -, or 0) in a real square matrix A, can one be certain that all positive ...
Jeffries, Clark   +2 more
core   +1 more source

Coherence and quasistable states in a strong infrared field

open access: yesPhysical Review A, 2016
We study the quasistability of UV-pulse-train-excited H atoms in a strong infrared (IR) laser as a function of the phase delay of the UV pulse train relative to the IR laser. The UV pulse train contains two frequency components. When the two components have frequencies separated by two IR photons, the population of surviving electrons is modulated by ...
Changchun Zhong, F. Robicheaux
openaire   +2 more sources

Method for Characterizing the Development State and Spatiotemporal Evolution of Mining‐Induced Overburden Fractures

open access: yesAdvances in Civil Engineering, Volume 2026, Issue 1, 2026.
Mining‐induced coal seam extraction causes deformation and fracturing of the overburden, leading to the development of fractures, which pose significant threats to mine safety, surface structures, and natural ecosystems. To address the challenge of quantitatively characterizing overburden fractures caused by coal seam mining, this study, taking the 12 ...
Wei Zhu   +9 more
wiley   +1 more source

Some New Investigations on the Dynamic Biocompetitive Ecological Model (DBEM): A Nonautonomous Framework for Planetary Overshoot

open access: yesComplexity, Volume 2026, Issue 1, 2026.
Seven of nine planetary boundaries have been transgressed and anthropogenic mass now exceeds all living biomass, yet existing collapse models assume ecological regeneration—contradicting tipping‐point evidence—while integrated assessment models rely on smooth damage functions that preclude irreversibility.
Rishav Jha   +6 more
wiley   +1 more source

Clifford representatives via the uniform algebraic rank

open access: yesJournal of the London Mathematical Society, Volume 111, Issue 6, June 2025.
Abstract In this paper, we introduce the uniform algebraic rank of a divisor class on a finite graph. We show that it lies between Caporaso's algebraic rank and the combinatorial rank of Baker and Norine. We prove the Riemann–Roch theorem for the uniform algebraic rank, and show that both the algebraic and the uniform algebraic rank are realized on ...
Myrla Barbosa   +2 more
wiley   +1 more source

On stability and quasi-stability of a vector lexicographic quadratic boolean programming problem

open access: yesJournal of Numerical Analysis and Approximation Theory, 2001
We consider a vector Boolean programming problem with the linear-quadratic partial criteria. Formulas of radiuses of two types of stability, necessary and sucient conditions of stability are found.
V.A. Emelichev, V. Nikulin
doaj   +2 more sources

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