Results 1 to 10 of about 23,107 (187)

Systematic study of proton radioactivity of spherical proton emitters within various versions of proximity potential formalisms [PDF]

European Physical Journal A, 2019
In this work we present a systematic study of the proton radioactivity half-lives of spherical proton emitters within the Coulomb and proximity potential model. We investigate 28 different versions of the proximity potential formalisms developed for the description of proton radioactivity, $\mathcal{\alpha}$ decay and heavy particle radioactivity.
Jun-gang Deng, Xiao-hua Li
exaly   +2 more sources

The Role of Radioactivities in Astrophysics [PDF]

In "Astronomy with Radioactivities'', as Chapter2, Eds. Roland Diehl, Dieter H. Hartmann, and Nikos Prantzos, Springer Lect. Notes in Physics, Vol. 218, 2010, 2010
I present both a history of radioactivity in astrophysics and an introduction to the major applications of radioactive abundances to astronomy.
arxiv   +1 more source

Two-proton radioactivity within a generalized liquid drop model [PDF]

, 2020
The generalized liquid drop model (GLDM) is firstly extended to study the two-proton ($2p$) radioactivity half-lives of the ground-state of nuclei. According to the comparison between the calculated half-lives and the experimental data, it is shown that the GLDM describes the $2p$ radioactivity half-lives well.
arxiv   +1 more source

Introduction to Astronomy with Radioactivity [PDF]

Springer Astrophysics and Space Science Library, Vol. 453, as Edition #2 (2018), 2010
In the late nineteenth century, Antoine Henri Becquerel discovered radioactivity and thus the physics of weak interactions, well before atomic and quantum physics was known. The different types of radioactive decay, alpha, beta, and gamma decay, all are different types of interactions causing the same, spontaneous, and time-independent decay of an ...
arxiv   +1 more source

44Ti radioactivity in young supernova remnants: Cas A and SN 1987A [PDF]

New Astron.Rev. 48 (2004) 69-73, 2003
We investigate radioactivity from the decay sequence of 44Ti in young supernova remnants (SNRs), Cassiopeia A (Cas A) and SN 1987A. It is shown by a linear analysis that ionization of 44Ti, a pure electron capture decay isotope, affects the radioactivity contradistinctively in these two SNRs: Ionization of 44Ti to H-like and He-like states enhances its
arxiv   +1 more source

Radioactivities and nucleosynthesis in SN 1987A [PDF]

New Astron.Rev. 46 (2002) 487-492, 2001
The nucleosynthesis and production of radioactive elements in SN 1987A are reviewed. Different methods for estimating the masses of 56Ni, 57Ni, and 44Ti are discussed, and we conclude that broad band photometry in combination with time-dependent models for the light curve gives the most reliable estimates.
arxiv   +1 more source

Theory of the two-proton radioactivity in the continuum shell model [PDF]

Nucl.Phys.A767:13-57,2006, 2005
We develop the microscopic description of the two-nucleon radioactivity in the framework of the Shell Model Embedded in the Continuum. This approach is applied for the description of spontaneous two-proton radioactivity in $^{45}$Fe, $^{48}$Ni and $^{54}$Zn.
arxiv   +1 more source

Synthesis of transactinide nuclei in cold fusion reactions using radioative beams [PDF]

Phys.Rev.C81:067602,2010, 2009
Chances of synthesis of transactinide nuclei in cold fusion reactions (one-neutron-out) reactions using radioactive beams are evaluated. Because intensities of radioactive beams are in most of the cases significantly lower than the ones of the stable beams, reactions with the highest radioactive beam intensities for the particular elements are ...
arxiv   +1 more source

A device to safely perform experiments on radioactivity [PDF]

Phys. Ed. (2018) 53 065018, 2018
This paper describes a cost effective and safe device to perform realistic experiments about the physics of radioactivity in classrooms. It can be used to study both $\alpha-$ and $\beta-$radioactivity as well as $\gamma-$emitters and shows an extremely realistic behaviour.
arxiv   +1 more source

Two-proton radioactivity [PDF]

Rept.Prog.Phys.71:046301,2008, 2007
In the first part of the present review paper, experimental results which lead to the discovery of two-proton radioactivity are reviewed. Beyond two-proton emission from nuclear ground states, we also discuss experimental studies of two-proton emission from excited states populated either by nuclear beta decay or by inelastic reactions.
arxiv   +1 more source