scholarly journals Slow Particle Production in Nucleus-Nucleus Collisions at Relativistic Energies

2016 ◽  
Vol 07 (01) ◽  
pp. 51-64 ◽  
Author(s):  
Mir Hashim Rasool ◽  
Mohammad Ayaz Ahmad ◽  
Shafiq Ahmad
Keyword(s):  
Particle Production ◽  
Slow Particle

Target productions in forward and backward hemispheres in the interactions of 28Si-EM at 14.6A GeV

2015 ◽  
Vol 24 (11) ◽  
pp. 1550084 ◽  
Author(s):  
A. Abdelsalam ◽  
M. S. El-Nagdy ◽  
A. M. Abdalla ◽  
A. Saber
Keyword(s):  
Experimental Data ◽  
Angular Distribution ◽  
Energy Dependence ◽  
Mass Number ◽  
Particle Production ◽  
Charged Particles ◽  
Experimental Results ◽  
Anisotropy Ratio ◽  
Nuclear Emulsions ◽  
Slow Particle

This paper search for the results and properties of slow particle productions, appear as a gray and black tracks in nuclear emulsions, producing secondary charged particles which are emitted from [Formula: see text]Si interactions with emulsion nuclei at 14.6[Formula: see text] GeV. The forward particles emission of interactions, ([Formula: see text]) as well as the backward ones ([Formula: see text]), have been investigated. It includes the effect of both projectile mass number and energy on the production and multiplicities of these particles. The results compared with other experiments for the same target but with different projectiles and energies. The experimental data show that there are two different mechanisms responsible for the production of gray particles for the chosen channels of emission angles and each are energy dependence. This dependence is weakly on the projectile mass number. The same investigations are applied for black tracks producing particles. The experimental results show the production of these particles is purely target fragments independent on both projectile mass number and its energy. The anisotropy ratio of angular distribution (F/B) is applied for both kinds of particles which are found the value for gray particle production depends on the direction of emissions while it is unchanged for black particles.

On slow particle production in hadron-nucleus interactions

1982 ◽  
Vol 198 (3) ◽  
pp. 407-426 ◽  
Author(s):  
Evert Stenlund ◽  
Ingvar Otterlund
Keyword(s):  
Particle Production ◽  
Slow Particle

Slow particle production in interactions of neutrinos with heavy nuclei of photoemulsion

1994 ◽  
Vol 578 (3-4) ◽  
pp. 586-596 ◽  
Author(s):  
P.A. Goritchev ◽  
O.K. Egorov ◽  
E.D. Kolganova ◽  
E.A. Pozharova ◽  
V.V. Shamanov ◽  
...  
Keyword(s):  
Particle Production ◽  
Heavy Nuclei ◽  
Slow Particle

On slow-particle production in 200A GeV16O-emulsion interactions

1995 ◽  
Vol 108 (1) ◽  
pp. 87-96 ◽  
Author(s):  
M. El-Nadi ◽  
M. M. Sherif ◽  
A. Hussien ◽  
A. A. Fakeha ◽  
V. Uzhinskii
Keyword(s):  
Particle Production ◽  
Slow Particle

SLOW PARTICLE PRODUCTION IN THE INTERACTIONS OF 200 A GeV SULPHUR PROJECTILE WITH NUCLEAR EMULSION

2001 ◽  
Vol 16 (28) ◽  
pp. 1801-1809 ◽  
Author(s):  
S. DHAMIJA ◽  
M. M. AGGARWAL ◽  
V. S. BHATIA
Keyword(s):  
Angular Distribution ◽  
Pion Production ◽  
Nuclear Emulsion ◽  
Particle Production ◽  
Similar Data ◽  
Good Resolution ◽  
Collision Process ◽  
Slow Particle ◽  
Experimental Values ◽  
Grey Particle

We report our experimental results on various constituents of grey particles (0.23< β < 0.7), namely pions, kaons, and baryons, emitted in Sulphur-Emulsion interactions at 200 A GeV energy. These particles have been identified with good resolution and their emission angles have also been measured. Comparison has been made with similar data from proton-Em interactions and with predictions from the Modified FRITIOF Code (MFC). We find that the pion production is higher in the case of S-Em interactions as compared to that in p-Em interactions. MFC gives pions in agreement with our experimental value but underpredicts the kaon yield. The angular distribution is related to the amount of rescattering taking place in the target spectator region. The value of rescattering parameter, κ, as deduced from our data, has been found to be significantly smaller in case of pions as compared to that of kaons and baryons. This indicates that pion production involves a greater degree of rescattering of participants, during the collision process, as compared to kaons and baryons. The values of κ for all the three grey particle constituents, as calculated from the Modified FRITIOF Code, are higher than the experimental values. This suggests that there is a need to incorporate a greater degree of rescattering in the model.

Intramitochondrial Viruses of Reptilian Cell Origin

1972 ◽  
Vol 30 ◽  
pp. 318-319
Author(s):  
Philip D. Lunger ◽  
H. Fred Clark
Keyword(s):  
Particle Production ◽  
Outer Zone ◽  
Density Variation ◽  
Core Region ◽  
Mitochondrial Membranes ◽  
Virus Particles ◽  
The Core ◽  
Vipera Russelli ◽  
Maturation Stages ◽  
Type Particle

In the course of fine structure studies of spontaneous “C-type” particle production in a viper (Vipera russelli) spleen cell line, designated VSW, virus particles were frequently observed within mitochondria. The latter were usually enlarged or swollen, compared to virus-free mitochondria, and displayed a considerable degree of cristae disorganization.Intramitochondrial viruses measure 90 to 100 mμ in diameter, and consist of a nucleoid or core region of varying density and measuring approximately 45 mμ in diameter. Nucleoid density variation is presumed to reflect varying degrees of condensation, and hence maturation stages. The core region is surrounded by a less-dense outer zone presumably representing viral capsid.Particles are usually situated in peripheral regions of the mitochondrion. In most instances they appear to be lodged between loosely apposed inner and outer mitochondrial membranes.

Electrospray technique for solid lipid-based particle production

2009 ◽  
Vol 00 (00) ◽  
pp. 090930024652050-8
Author(s):  
M. Trotta ◽  
R. Cavalli ◽  
C. Trotta ◽  
R. Bussano ◽  
L. Costa
Keyword(s):  
Particle Production ◽  
Solid Lipid
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