Results 331 to 340 of about 8,871,970 (390)

Flavor-changing decays of fourth-generation quarkonium

Physical Review D, 1989
We evaluate the flavor-changing neutral-current decays {ital S}({ital v{bar v}}){r arrow}{ital c{bar t}},{ital t{bar c}},{ital a{bar t}},{ital t{bar a}} of the {ital S}-wave quarkonium states formed from the {ital Q}={minus}1/3 charge {ital v} quark of a fourth-generation quark doublet ({ital a},{ital v}).
, Barger, , Keung
openaire   +2 more sources

Next-generation nucleon decay experiments

Nuclear Physics B - Proceedings Supplements, 2005
A recent status and future prospect of nucleon decay experiments are summarized. The most stringent limits on proton decays are given by the largest water Cerenkov detector, Super-Kamiokande. A lower limit on the partial lifetime of a proton is set at 5.4 × 1033 years for p → e+π0 at 90% C.L., and 2.2 × 1033 years for p → ν ¯ K + . A next
openaire   +1 more source

General decay synchronization and H∞ synchronization of spatial diffusion coupled delayed reaction-diffusion neural networks.

ISA transactions, 2020
This paper deals with the general decay synchronization (GDS) and general decay H∞ synchronization (GDHS) problems for spatial diffusion coupled delayed reaction-diffusion neural networks (SDCDRDNNs) without and with uncertain parameters respectively ...
Jianmou Lu, Yanli Huang, Shun-Yan Ren
semanticscholar   +1 more source

Well-posedness and general decay of a nonlinear damping porous-elastic system with infinite memory

, 2020
In the present work, we consider a one-dimensional porous-elastic system with infinite memory and a nonlinear damping term. We establish the well-posedness of the system using semigroup theory and show the general decay for the case of nonequal speeds of
H. Khochemane, A. Djebabla, S. Zitouni, L. Bouzettouta   +3 more
semanticscholar   +1 more source

General decay of nonlinear viscoelastic Kirchhoff equation with Balakrishnan‐Taylor damping, logarithmic nonlinearity and distributed delay terms

Mathematical methods in the applied sciences, 2020
In this paper, we consider a nonlinear viscoelastic Kirchhoff equation with the presence of both distributed delay term, Balakrishnan‐Taylor damping, and logarithmic nonlinearity.
A. Choucha, S. Boulaaras, D. Ouchenane, S. Beloul   +3 more
semanticscholar   +1 more source

Growth and decay in generalized thermoelasticity

International Journal of Engineering Science, 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Payne, L. E., Song, J. C.
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New general decay results for a Moore–Gibson–Thompson equation with memory

Applicable Analysis, 2020
In this paper, we consider the Moore–Gibson–Thompson equation with a memory term in the subcritical case, which arises in high-frequency ultrasound applications accounting for thermal flux and molecular relaxation times.
Wenjun Liu, Zhi-Jing Chen, Dongqin Chen
semanticscholar   +1 more source

Rare Decays and the Fourth Generation

Annals of the New York Academy of Sciences, 1989
Rare decays are quite sensitive1 to physics beyond the Standard Model (SM), due to the effects of virtual, new, heavy particles (i.e., a fourth generation, SUSY, charged Higgs, E6 exotic fermions,…). These new contributions can either enhance or suppress (sometimes quite substantially) the rates for rare processes compared to the corresponding SM ...
openaire   +1 more source

General decay rate for a class of weakly dissipative second‐order systems with memory

Mathematical methods in the applied sciences, 2019
In this paper, we study an abstract class of weakly dissipative second‐order systems with finite memory. We establish a new general decay rate for the solution of the system under some appropriate conditions on the memory kernel (relaxation function ...
J. Hassan, S. Messaoudi
semanticscholar   +1 more source

Global existence and general decay for a weak viscoelastic equation with acoustic boundary conditions and a logarithmic source term

Zeitschrift für Angewandte Mathematik und Physik, 2023
F. Tahamtani, M. Shahrouzi, J. Ferreira
semanticscholar   +1 more source