Results 41 to 50 of about 7,646,725 (219)
What can we learn from neutrinoless double beta decay experiments? [PDF]
Phys.Rev.D70:033012,2004, 2004 We assess how well next generation neutrinoless double beta decay and normal neutrino beta decay experiments can answer four fundamental questions. 1) If neutrinoless double beta decay searches do not detect a signal, and if the spectrum is known to be inverted hierarchy, can we conclude that neutrinos are Dirac particles?
arxiv +1 more source
Asymptotic behavior of a viscoelastic wave equation with a delay in internal fractional feedback [PDF]
Archives of Control SciencesWe consider the viscoelastic wave equation with a time delay term in internal fractional feedback. By employing the energy method along with the Faedo-Galerkin procedure, we establish the global existence of solutions, subject to certain conditions ...
Radhouane Aounallah +3 more
doaj +1 more source
AIMS Mathematics, 2023 In this paper, a quasi-linear viscoelastic Kirchhoff plate equation with logarithmic source and time delay involving free boundary conditions in a bounded domain is considered. The local existence and global existence are proved, respectively.
Zayd Hajjej, Sun-Hye Park
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Can Cosmic Ray Catalysed Vacuum Decay Dominate Over Tunnelling? [PDF]
Nucl.Phys. B513 (1998) 661-678, 1997 We consider the question of whether cosmic ray catalysed false vacuum decay can be phenomenologically more important than spontaneous decay via quantum tunnelling. We extend the zero bubble wall width Landau-WKB analysis of catalysed false vacuum decay to include the leading order effects of finite wall width and derive an expression for the thin-wall ...
arxiv +1 more source
AIMS Mathematics, 2023 In this work, we consider a nonlinear thermoelastic Timoshenko system with a time-dependent coefficient where the heat conduction is given by Coleman-Gurtin [1]. Consequently, the Fourier and Gurtin-Pipkin laws are special cases. We prove that the system
Adel M. Al-Mahdi
doaj +1 more source
Is Radioactive Decay Really Exponential? [PDF]
EPL, 97, 52001, 2012, 2012 Radioactive decay of an unstable isotope is widely believed to be exponential. This view is supported by experiments on rapidly decaying isotopes but is more difficult to verify for slowly decaying isotopes. The decay of 14C can be calibrated over a period of 12,550 years by comparing radiocarbon dates with dates obtained from dendrochronology.
arxiv +1 more source
Open Mathematics, 2021 This article concerns linear one-dimensional thermoelastic Timoshenko system with memory and distributed delay terms where the Cattaneo law governs the heat flux q(x,t)q\left(x,t).
Moumen Abdelkader +4 more
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Spatial decay of multi-solitons of the generalized Korteweg-de Vries and nonlinear Schr{รถ}dinger equations [PDF]
arXiv, 2022 We study pointwise spatial decay of multi-solitons of the generalized Korteweg-de Vries equations. We obtain that, uniformly in time, these solutions and their derivatives decay exponentially in space on the left of and in the solitons region, and prove rapid decay on the right of the solitons.
arxiv
Exploring the simplest purely baryonic decay processes [PDF]
Phys. Rev. D 94, 014027 (2016), 2016 Though not considered in general, purely baryonic decays could shed light on the puzzle of the baryon number asymmetry in the universe by means of a better understanding of the baryonic nature of our matter world. As such, they constitute a yet unexplored class of decay processes worth investigating.
arxiv +1 more source
AIMS Mathematics, 2023 This article examines the joint impacts of microtemperature, nonlinear structural damping, along with nonlinear time-varying delay term, and time-varying coefficient on a thermoelastic laminated beam, where, the equation representing the dynamics of slip
Fatima Siham Djeradi +4 more
doaj +1 more source