Pseudorapidity distributions of fast target protons in 32S-Em collisions at Dubna energy

2020 ◽  
Vol 29 (01) ◽  
pp. 2050002
Author(s):  
S. kamel ◽  
E. El-Falaky ◽  
A. Saber
Keyword(s):  
Angular Distribution ◽  
Statistical Model ◽  
Pseudorapidity Distribution ◽  
Pseudorapidity Distributions ◽  
Fast Protons

In this paper, the possible mechanisms, which are responsible for the production of fast target fragments (gray particles with energy 26 up to 400[Formula: see text]MeV) that were emitted from the interactions of [Formula: see text]S nucleus with emulsion nuclei at energy 3.7[Formula: see text]A[Formula: see text]GeV, are studied by the pseudorapidity distribution. The angular distribution of the fast protons ([Formula: see text]-particles) emitted in the interactions of [Formula: see text]S-Em at 3.7[Formula: see text]A[Formula: see text]GeV is nicely described by exp (0.96 cos [Formula: see text], which was observed in proton-induced interactions up to incident energies of 800[Formula: see text]GeV. The pseudorapidity distributions of the produced [Formula: see text]-particles were investigated in order to study the characteristics of the emitted system of [Formula: see text]-particles for different target sizes (CNO, Em and AgBr groups of events). In all cases, the pseudorapidity distributions were parametrized using Gaussian fits. The temperature of the system emitting [Formula: see text]-particles (hot system) is predicated in the light of the proposed statistical model to be [Formula: see text][Formula: see text]MeV.

MEASUREMENT OF FISSION FRAGMENT ANISOTROPIES FOR PROTON-INDUCED FISSION OF TWO PRE-ACTINIDE NUCLEI AT SEVERAL ENERGIES

2007 ◽  
Vol 22 (05) ◽  
pp. 1027-1037 ◽  
Author(s):  
S. SOHEYLI ◽  
H. NOSHAD ◽  
M. LAMEHI-RACHTI
Keyword(s):  
Angular Distribution ◽  
Statistical Model ◽  
Cross Sections ◽  
Fission Fragment ◽  
Anomalous Behavior ◽  
Surface Barrier ◽  
Mass Asymmetry ◽  
Fission Fragments ◽  
Induced Fission ◽  
Barrier Detectors

The angular distribution of fission fragments has been measured for proton-induced fission of 197 Au and 209 Bi nuclei at several energies between 25 and 30 MeV using surface-barrier detectors. The measured anisotropies are found to be in agreement with the predictions of the standard saddle-point statistical model. The measured anisotropies for neither of the nuclei show any anomalous behavior as a function of both energy and entrance channel mass asymmetry. The fission cross sections of 197 Au and 209 Bi nuclei were also measured and compared with that of the previous works.

Angular distribution of fast protons from the pre-equilibrium process of theHo165(α,p) reaction

1992 ◽  
Vol 45 (2) ◽  
pp. 774-779 ◽  
Author(s):  
Anuradha De ◽  
Tokushi Shibata ◽  
Hiroyasu Ejiri
Keyword(s):  
Angular Distribution ◽  
Equilibrium Process ◽  
Fast Protons

Energy and angular distribution of electrons ejected from helium by fast protons and electrons: Theory and experiment

1975 ◽  
Vol 12 (1) ◽  
pp. 60-79 ◽  
Author(s):  
Steven T. Manson ◽  
L. H. Toburen ◽  
D. H. Madison ◽  
N. Stolterfoht
Keyword(s):  
Angular Distribution ◽  
Fast Protons ◽  
Theory And Experiment

scholarly journals Experimental Study of the Astrophysically Interesting 112Cd(p,γ)113In Reaction

2019 ◽  
Vol 21 ◽  
pp. 188
Author(s):  
E.-M. Asimakopoulou ◽  
E. Malami ◽  
T. J. Mertzimekis ◽  
V. Foteinou
Keyword(s):  
Experimental Study ◽  
Angular Distribution ◽  
Statistical Model ◽  
Total Cross Section ◽  
Cross Section ◽  
Proton Capture ◽  
High Importance ◽  
Validity Test ◽  
Low Energies ◽  
Excited Nuclei

An experimental study of the astrophysically interesting 112Cd(p,γ)113In reaction, conducted at INPP, NCSR “Demokritos”, is presented. The purpose of the experiment was to study the total cross section and the angular distribution of the de-excited nuclei. The experiment aimed at both gaining knowledge of proton capture at low energies and serving as a validity test for the Hauser–Feshbach theory, a statistical model of compound reactions of high importance. Both in–beam and activation techniques were used during the experiment and the results are compared to TALYS calculations.

Study of multiplicity and the pseudorapidity correlation in the forward and backward hemisphere for pions and protons emitted in a 12C – emulsion interaction at 4.5 A ∙ GeV/c

1989 ◽  
Vol 67 (2-3) ◽  
pp. 115-118 ◽  
Author(s):  
Dipak Ghosh ◽  
Jaya Roy ◽  
Ranjan Sengupta
Keyword(s):  
Angular Distribution ◽  
Asymmetry Parameter ◽  
Pseudorapidity Distribution ◽  
Heavy Particles ◽  
Depth Study ◽  
The Asymmetry

The paper presents an in depth study of the forward and backward pseudorapidity correlations for pions and protons produced in a 12C – emulsion interaction at 4.5 A ∙ GeV/c. The angular distribution of protons and the pseudorapidity distribution of pions are pictured. The asymmetry parameter (A) and the forward – backward ratio (F/B) are shown as a function of the number of heavy particles (nh).

Multiplicity and pseudorapidity distribution in high-energy neutrino-emulsion collisions

1999 ◽  
Vol 77 (1) ◽  
pp. 77-83 ◽  
Author(s):  
F H Liu ◽  
J F Sun
Keyword(s):  
Charged Particles ◽  
High Energy ◽  
Pseudorapidity Distribution ◽  
Number Density ◽  
High Energy Neutrino ◽  
High Energies ◽  
Energy Neutrino ◽  
Pseudorapidity Distributions

The multiplicity and pseudorapidity distributions inneutrino-emulsion collisions at high energies are investigated. Themultiplicity distribution of charged particles, the pseudorapiditydistributions of shower particles, as well as the correlation between amean maximum number density of shower particles and multiplicity, are given.PACS No.: 13.85.Hd

Pseudorapidity distribution of shower particles in relativistic nucleus–nucleus collisions

2003 ◽  
Vol 81 (11) ◽  
pp. 1271-1281
Author(s):  
NN Abd Allah
Keyword(s):  
Nuclear Emulsion ◽  
Relativistic Nucleus ◽  
Pseudorapidity Distribution ◽  
Multiplicity Distributions ◽  
Pseudorapidity Distributions

The multiplicity and pseudorapidity distributions of shower particles produced in interactions of the 24Mg at 4.5A GeV/c was studied in nuclear emulsion. The results indicated that the multiplicity distributions of shower particles produced in the collisions depend on the projectile mass. The pseudorapidity distributions are approximately Gaussian in shape. Also, the peaks of the pseudorapidity distributions of shower particles tend to shift towards the lower values of the pseudorapidity with increasing number of the shower particles. PACS Nos.: 25.75.-q, 29.40.Rg

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