Average Multiplicity of Unresolved Photon Cascades in the De-excitation of Highly Excited Compound Nuclei

1974 ◽  
Vol 33 (10) ◽  
pp. 596-600 ◽  
Author(s):  
E. der Mateosian ◽  
O. C. Kistner ◽  
A. W. Sunyar
Keyword(s):  
Average Multiplicity

Features of relativistic charged particles produced in catastrophic destruction of heavy emulsion nuclei at 4.5 A GeV

1998 ◽  
Vol 76 (7) ◽  
pp. 559-566 ◽  
Author(s):  
P Singh ◽  
M S Khan ◽  
H Khushnood
Keyword(s):  
Poisson Distribution ◽  
Linear Dependence ◽  
Charged Particles ◽  
Average Multiplicity ◽  
Average Value ◽  
Multiplicity Distributions ◽  
Good Agreement ◽  
Fireball Model

Total disintegration events produced in 4.5 A GeV/c 12C--AgBr reactions are analysed to investigate the characteristics of secondary charged particles produced in such collisions. The results reveal that multiplicity distributions of grey, black, and relativistic charged particles agree with the Poisson distribution. The average multiplicity of grey particles is found to increase with the increasing mass of projectile, while the average value of black particles is found to decrease with the increasing mass of projectile. This result is in good agreement with the prediction of fireball model. Finally, the linear dependence of grey and compound multiplicities on black, heavy, and relativistic charged particles is also observed. PACS No.: 25.70

Possible relationship between the ratioπ+π−and the average multiplicity

1974 ◽  
Vol 9 (9) ◽  
pp. 2505-2512 ◽  
Author(s):  
Alexander Wu Chao ◽  
Chen Ning Yang
Keyword(s):  
Average Multiplicity

NEW AMY AND DELPHI MULTIPLICITY DATA AND THE LOGNORMAL DISTRIBUTION

1991 ◽  
Vol 06 (03) ◽  
pp. 245-257 ◽  
Author(s):  
R. SZWED ◽  
G. WROCHNA ◽  
A.K. WRÓBLEWSKI
Keyword(s):  
Energy Dependence ◽  
Lognormal Distribution ◽  
Scaling Function ◽  
Average Multiplicity ◽  
Linear Functions ◽  
The Mean ◽  
Multiplicity Distributions ◽  
The Scaling Function ◽  
Skewness And Kurtosis

Multiplicity distributions for e+e−→ hadrons recently reported by the AMY and DELPHI collaborations are compared with the data obtained at lower energies. It is proven that the new data obey the KNO-G scaling and the scaling function can be described by the lognormal distribution. The dispersions are linear functions of the mean as for the data measured at lower energies and the standardized moments (such as skewness and kurtosis) are independent of the energy. The energy dependence of the average multiplicity is described by <nch>=β sα−1.

Characteristics of the total disintegration of AgBr nuclei by 24Mg and 32S nuclei at 4.5 A GeV/c

2000 ◽  
Vol 78 (10) ◽  
pp. 915-927 ◽  
Author(s):  
N N Abd-Allah
Keyword(s):  
Free Path ◽  
Incident Energy ◽  
Charged Particles ◽  
Mean Free Path ◽  
Average Multiplicity ◽  
Multiplicity Distributions ◽  
Inelastic Mean Free Path ◽  
Good Agreement ◽  
Fireball Model

The interactions of 4.5 A GeV/c 24Mg and 32S nuclei with emulsion were studied. The experimental inelastic mean free path for these interactions is compared with theoretically calculated values. The average multiplicities of the emitted secondary charged particles for total disintegration were investigated. Total disintegration events are analysed to investigate the characteristics of secondary charged particles produced in such collisions. The results show that the multiplicity distributions of relativistic charged particles agree with the Gaussion distribution. The average multiplicity of grey and black particles is in good agreement with the prediction of the fireball model. The probabilty of total disintegration of Ag(Br) nuclei by different projectiles is nearly independent of the incident energy. PACS No.: 25.70

Growth of the average multiplicity of particles in high-energy collisions

1993 ◽  
Vol 47 (9) ◽  
pp. 4150-4153 ◽  
Author(s):  
Saul Barshay ◽  
Patrick Heiliger
Keyword(s):  
High Energy ◽  
Average Multiplicity ◽  
High Energy Collisions

Average multiplicity at high energies and renormalization group

1976 ◽  
Vol 33 (1) ◽  
pp. 195-204 ◽  
Author(s):  
W. Ernst ◽  
I. Schmitt
Keyword(s):  
Renormalization Group ◽  
Average Multiplicity ◽  
High Energies

scholarly journals Systematic study of the de-excitation of neutron-rich nuclei produced in different fission reactions

2021 ◽  
Vol 256 ◽  
pp. 00012
Author(s):  
Andreas Oberstedt ◽  
Angélique Gatera ◽  
Alf Göök ◽  
Matthieu Lebois ◽  
Stephan Oberstedt ◽  
...  
Keyword(s):  
Energy Release ◽  
Systematic Study ◽  
Time Window ◽  
Spectral Characteristics ◽  
Average Energy ◽  
Average Multiplicity ◽  
Fast Neutrons ◽  
Fission Reactions ◽  
Timing Resolution ◽  
Prompt Fission

In this paper we present results from two recent studies, both related to the emission of prompt fission γ rays. Firstly, we have analyzed data from the reaction 235U(n, f) induced by fast neutrons of average energy E̅n = 1.7 MeV. The deduced spectral characteristics are an average multiplicity M̅γ = 7.11 ± 0.44 γ rays per fission and an average total γ-ray energy release in fission E̅γ,tot = 5.51 ± 0.46 MeV, corresponding to an average γ-ray energy ɛ̅γ = 0.77 ± 0.08 MeV. Secondly, we have addressed – and answered – the question how those characteristics in general depend on the width of the chosen prompt time window and the timing resolution, determined by the employed detectors and electronics. The conclusion is that once this is known, it is possible to compare results from different experiments in a more meaningful way.

scholarly journals Lightning environment in the vicinity of the CN tower during major storms

2021 ◽  
Author(s):  
Norhan Mansour
Keyword(s):  
Measurement System ◽  
North American ◽  
Electromagnetic Interference ◽  
Current Measurement ◽  
Average Multiplicity ◽  
Network Data ◽  
Return Stroke ◽  
The North ◽  
Lightning Detection ◽  
Intense Storm

Based on the North American Lightning Detection Network data and the return-stroke currents recorded at the CN Tower, the lightning environment within 100 km from the CN Tower is thoroughly investigated, especially while the tower was struck with major storms in 2011 and 2005. On Aug 24, 2011, video records showed that the tower was struck with 52 flashes within about 84 minutes, pointing out to the most intense storm that has ever been observed at the tower. During this most intense storm, the tower’s current measurement system recorded 32 flashes, containing 161 return strokes, resulting in an average flash multiplicity of 5, which is 80% higher than the average multiplicity of flashes occurring in the vicinity of the tower. Since the tower is repeatedly hit by lightning and its flashes produce markedly higher number of strokes, then it definitely poses an electromagnetic interference risk to nearby sensitive installations, including those in downtown Toronto.

Sign in / Sign up

Export Citation Format

Share Document