scholarly journals Proton-number fluctuations in sNN=2.4 GeV Au + Au collisions studied with the High-Acceptance DiElectron Spectrometer (HADES)

2020 ◽  
Vol 102 (2) ◽  
Author(s):  
J. Adamczewski-Musch ◽  
O. Arnold ◽  
C. Behnke ◽  
A. Belounnas ◽  
A. Belyaev ◽  
...  
Keyword(s):  
Proton Number

scholarly journals Updated calculations of the ionization equilibrium for the non-Maxwellian electron n-distributions in solar flares

2015 ◽  
Vol 11 (S320) ◽  
pp. 243-245
Author(s):  
Elena Dzifčáková ◽  
Jaroslav Dudík
Keyword(s):  
Solar Flares ◽  
Maxwellian Distribution ◽  
Atomic Data ◽  
Ionization Equilibrium ◽  
Proton Number ◽  
Abundance Peak ◽  
Temperature Diagnostics

AbstractThe assumption of an equilibrium (Maxwellian) distribution of electron energies cannot explain observed high intensities of the Si XIId satellite lines relative to the Si XIII allowed lines during the flares. However, the presence of n-distribution with a higher and narrower shape than the Maxwellian one is able to explain this behavior. We calculated the ionization equilibrium for the non-thermal n-distributions using the latest atomic data for each element up to the proton number of 30. Significant changes in the shape and maxima of the ion abundance peak occur and can strongly influence the temperature diagnostics.

Net-proton-number kurtosis and skewness in nuclear collisions: Influence of deuteron formation

2015 ◽  
Vol 92 (6) ◽  
Author(s):  
Zuzana Fecková ◽  
Jan Steinheimer ◽  
Boris Tomášik ◽  
Marcus Bleicher
Keyword(s):  
Nuclear Collisions ◽  
Proton Number

scholarly journals Metal Catalysed Condensation Reaction

1970 ◽  
Vol 42 (1) ◽  
pp. 9-14
Author(s):  
PK Saha ◽  
MH Bahar
Keyword(s):  
Condensation Reaction ◽  
Pure Metal ◽  
Metal Catalyst ◽  
Proton Number ◽  
Diacetone Alcohol

Propanone (acetone) was dimerised to obtain 4-hydroxy-4-methylpentanone-2 (diacetone alcohol) in reasonably good yields in presence of metal catalyst viz aluminium, iron, tin and zinc at different catalytic conditions---pure metal, activated metal and amalgamated metal. Yields of the product was found to decrease exponentially with the increase of proton number of the metal catalyst. Bangladesh J. Sci. Ind. Res. 42(1), 9-14, 2007

Calculation of α half-lives for Z ≥ 94 nuclei by proximity potential with a new universal function

2015 ◽  
Vol 24 (06) ◽  
pp. 1550040 ◽  
Author(s):  
C. L. Guo ◽  
G. L. Zhang ◽  
M. Li
Keyword(s):  
Experimental Data ◽  
Universal Function ◽  
Superheavy Nuclei ◽  
Proximity Potential ◽  
Α Decay ◽  
Proton Number ◽  
Calculation Results

The half-lives of even–even nuclei with proton number Z ≥ 94 are calculated by proximity potential with a new universal function, especially for superheavy nuclei. The calculation results are compared to the experimental data. It is shown that from the presently obtained universal function, the calculated half-lives of α decay can basically keep agreement with the experimental data for most of even–even nuclei. Those of superheavy nuclei are also calculated and discussed.

scholarly journals Effect of secondary protons on baryon and proton number cumulants in event-by-event analysis

2013 ◽  
Vol 87 (4) ◽  
Author(s):  
Hirosato Ono ◽  
Masayuki Asakawa ◽  
Masakiyo Kitazawa
Keyword(s):  
Event Analysis ◽  
Proton Number

scholarly journals Nuclear interactions and net-proton number fluctuations in heavy ion collisions at the SIS18 accelerator

2018 ◽  
Vol 785 ◽  
pp. 40-45 ◽  
Author(s):  
Jan Steinheimer ◽  
Yongjia Wang ◽  
Ayon Mukherjee ◽  
Yunxiao Ye ◽  
Chenchen Guo ◽  
...  
Keyword(s):  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Proton Number ◽  
Ion Collisions ◽  
Nuclear Interactions

scholarly journals Complex geometry of nuclei and atoms

2018 ◽  
Vol 33 (24) ◽  
pp. 1830022
Author(s):  
M. F. Atiyah ◽  
N. S. Manton
Keyword(s):  
Complex Geometry ◽  
Betti Numbers ◽  
Geometrical Model ◽  
Algebraic Surfaces ◽  
Finite Range ◽  
Neutral Atoms ◽  
Proton Number ◽  
Chern Numbers ◽  
Geometrical Constraints ◽  
Hodge Numbers

We propose a new geometrical model of matter, in which neutral atoms are modelled by compact, complex algebraic surfaces. Proton and neutron numbers are determined by a surface’s Chern numbers. Equivalently, they are determined by combinations of the Hodge numbers, or the Betti numbers. Geometrical constraints on algebraic surfaces allow just a finite range of neutron numbers for a given proton number. This range encompasses the known isotopes.

scholarly journals Proton number fluctuations in partial chemical equilibrium

2021 ◽  
Vol 104 (4) ◽  
Author(s):  
Boris Tomášik ◽  
Paula Hillmann ◽  
Marcus Bleicher
Keyword(s):  
Chemical Equilibrium ◽  
Proton Number ◽  
Partial Chemical
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