نتایج جستجو برای: nuclear decay theory

تعداد نتایج: 1070122  

2004
N. G. Kelkar K. P. Khemchandani

The framework to describe natural phenomena at their basics being quantum mechanics, there exist a large number of common global phenomena occurring in different branches of natural sciences. One such global phenomenon is spontaneous quantum decay. However, its long time behaviour is experimentally poorly known. Here we show, that by combining two genuine quantum mechanical results, it is possi...

Journal: :Physical review letters 2010
Nicolas Sisourat Hendrik Sann Nikolai V Kryzhevoi Přemysl Kolorenč Tilo Havermeier Felix Sturm Till Jahnke Hong-Keun Kim Reinhard Dörner Lorenz S Cederbaum

The interatomic electronic decay after inner-valence ionization of a neon atom by a single photon in a neon-helium dimer is investigated. The excited neon atom relaxes via interatomic Coulombic decay and the excess energy is transferred to the helium atom and ionizes it. We show that the decay process is only possible if the dimer's bond stretches up to 6.2 Å, i.e., to more than twice the equil...

1999
S. J. Sanders

A review of the characteristic features found in fully energy-damped, binarydecay yields from light heavy-ion reactions with 20 ≤ Atarget+Aprojectile ≤ 80 is presented. The different aspects of these yields that have been used to support models of compound-nucleus (CN) fission and deep-inelastic dinucleus orbiting are highlighted. Cross section calculations based on the statistical phase space ...

2002

1 Energy release in alpha-decay 2 Consider a nucleus which is stable against decay by proton or neutron emission { the least bound nucleon still has (say) several MeV of binding energy. This nucleus may nevertheless still be able to decay by using the fact that if it can emit an alpha-particle (2He), it can use the binding energy of the alpha to supply the energy needed for the escape. That is,...

2011
M. Lee M. C. Cassidy C. Ramanathan C. M. Marcus

M. Lee,1 M. C. Cassidy,2 C. Ramanathan,3 and C. M. Marcus1,* 1Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA 2School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, USA 3Department of Physics and Astronomy, Dartmouth College, Hanover, New Hampshire 03755, USA (Received 21 March 2011; revised manuscript received 23 May 2011...

The emergence of nuclear weapons as a new actor in international relations has introduced a new area in the international security arena. Since the appearance of these weapons, there have been increasing efforts to limit and destroy them in order to achieve global peace in the framework of disarmament and centered around the Treaty on the Non-Proliferation of Nuclear Weapons. Along with the eme...

1998
B. L. Graham B. F. Phlips J. D. Kurfess

A Monte Carlo technique for modeling background in space-based gamma-ray telescopes has been developed. The major background components included in this modeling technique are the diffuse cosmic gamma-ray flux, the Earth's atmospheric flux, the decay of nuclei produced by spallation of cosmic rays, trapped protons and their secondaries, the decay of nuclei produced by neutron capture, and the d...

Journal: :Journal of Mathematical Analysis and Applications 2023

In this article, we present a sufficient condition for the exponential exp⁡(−f) to have tail decay stronger than any Gaussian, where f is defined on locally convex space X and grows faster squared seminorm X. particular, our result proves that exp⁡(−p(x)2+ε+αq(x)2) integrable all α,ε>0 w.r.t. Radon Gaussian measure nuclear X, if p q are continuous seminorms with compatible kernels. This can be ...

Journal: :American journal of physiology. Cell physiology 2002
Christine M Misquitta James Mwanjewe Lin Nie Ashok K Grover

Stomach smooth muscle (SSM) and left ventricular muscle (LVM) express the sarco(endo)plasmic reticulum Ca(2+)-ATPase (SERCA) pump gene SERCA2. Alternative splicing yields two major isoforms, SERCA2a in LVM and slow twitch muscle and SERCA2b in SSM and most other tissues. The splices have different 3'-untranslated regions (UTR) and also encode proteins that differ slightly in their COOH-terminal...

سید محمد زبرجد, , محسن بیگدلی, ,

  In this paper, we calculate Hydrogen hyperfine splitting (HFS) at the order a4 by using NRQED as an effective field theory. We also show the leading-order contribution of nuclear size to the energy correction of Hydrogen atom . 

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