Multiparticle scattering theory and inclusive cross sections in nuclear collisions

1995 ◽  
Vol 51 (3) ◽  
pp. 1120-1126 ◽  
Author(s):  
Gy. Bencze ◽  
Colston Chandler
Keyword(s):  
Cross Sections ◽  
Scattering Theory ◽  
Nuclear Collisions ◽  
Multiparticle Scattering

Zur biologischen Wirksamkeit elastischer Kernstöße

1965 ◽  
Vol 20 (8) ◽  
pp. 764-772 ◽  
Author(s):  
H. Jung
Keyword(s):  
Energy Loss ◽  
Enzymatic Activity ◽  
Cross Section ◽  
Cross Sections ◽  
Proton Energy ◽  
Nuclear Collision ◽  
Thin Layers ◽  
Elastic Collisions ◽  
Nuclear Collisions ◽  
Sharp Minimum

Extremely thin layers of ribonuclease were irradiated with slow protons and the differential inactivation cross section determined for various proton energies in the range from 0.8 to 60 keV. At higher proton energies the inactivation cross section is not strongly dependent on energy but with decreasing proton energy it decreases rapidly, reaches a sharp minimum at 1.2 keV and increases again at still smaller energies. By comparing the experimentally determined inactivation cross sections with the cross sections for energy loss in elastic nuclear collisions and in ionizations, respectively, elastic collisions were demonstrated to destroy, in fact, the enzymatic activity of ribonuclease. The energy required for an inactivation by nuclear collision is only one fourth of the energy necessary for an inactivation by ionization.

ELASTIC SCATTERING OF DEUTERONS ON α-CLUSTER NUCLEI

1995 ◽  
Vol 10 (38) ◽  
pp. 2915-2921 ◽  
Author(s):  
V.P. MIKHAILYUK
Keyword(s):  
Experimental Data ◽  
Elastic Scattering ◽  
Cross Sections ◽  
Differential Cross ◽  
Scattering Theory ◽  
Cluster Model ◽  
Differential Cross Sections ◽  
Diffraction Scattering ◽  
Multiple Diffraction

The differential cross-sections for elastic scattering of deuterons on 12 C and 16 O nuclei at 700 MeV are calculated on the basis of multiple diffraction scattering theory and the α-cluster model with dispersion. For d−12 C scattering it was shown that the results of the calculations by the model, when the effects related with the deuteron structure included via deuteron-α amplitude are in better agreement with the experimental data than those by the model, in which incident deuteron is considered as composed of neutron and proton.

scholarly journals Self-similarity approach for prediction and analysis of experiments at the accelerator complex NICA

2019 ◽  
Vol 204 ◽  
pp. 07003
Author(s):  
Elina G. Baldina ◽  
Anton A. Baldin
Keyword(s):  
Cross Sections ◽  
Quantitative Estimation ◽  
Production Cross ◽  
Meson Production ◽  
Accelerator Complex ◽  
Heavy Nuclei ◽  
Self Similarity ◽  
Nuclear Collisions ◽  
Relativistic Nuclear Collisions ◽  
The Given

The given functional self-similarity solution quantitatively describes angular, energy and A-dependences of inclusive production cross sections for hadrons in relativistic nuclear collisions. It is applied to quantitative estimation of D, as well as φ and J/ψ meson production in collider experiment at the NICA accelerator complex with heavy nuclei. The results can be used for optimization of kinematically registered parameters for investigation of collective phenomena.

A NEW PROBE FOR COHERENT MANY-BODY DYNAMICS: NONERGODIC MOLECULES IN CONTINUUM

2002 ◽  
Vol 11 (04) ◽  
pp. 273-280 ◽  
Author(s):  
S. YU. KUN ◽  
A. V. VAGOV ◽  
L. T. CHADDERTON ◽  
W. GREINER
Keyword(s):  
Cross Sections ◽  
Reaction Dynamics ◽  
Polyatomic Molecules ◽  
Many Body ◽  
Physical Explanation ◽  
Energy Redistribution ◽  
Nuclear Collisions ◽  
Nuclear Molecules ◽  
Body Dynamics ◽  
New Type

We present a simple physical explanation that measurements of the collision cross-sections with pure energy resolution can provide information on the reaction dynamics equivalent to that obtained using real-time methods of femtochemistry. For nuclear collisions, the method provides a time resolution of ~ 10-21 sec. The method is sensitive enough to distinguish between the different scenarios of rotational dephasing for the highly-excited nuclear molecules, with strongly overlapping resonances, formed in 12C + 24Mg scattering. We find that the dephasing is much slower than the intra-molecular energy redistribution. This reveals unusual states — nonergodic molecules in continuum. Anomalously long dephasing times observed in highly-excited polyatomic molecules may reflect this new type of nonergodicity.

A unified description of spectroscopic interferences in predissociation

1977 ◽  
Vol 55 (1) ◽  
pp. 1-22 ◽  
Author(s):  
Jean-Pierre Laplante ◽  
André D. Bandrauk ◽  
Cosmo Carlone
Keyword(s):  
General Theory ◽  
Cross Sections ◽  
Scattering Theory ◽  
Bound States ◽  
Total Absorption ◽  
Photon Scattering ◽  
Simple Method ◽  
Complex Eigenvalues ◽  
Unified Description

A general theory of spectroscopic interferences for predissociating systems is developed using scattering theory. The introduction of complex bound states with complex eigenvalues results in a simple method for the derivation of total absorption, predissociation, and photon scattering (Raman) cross sections. The validity of other formalisms for these interferences, including Fano lineshapes, is examined and cases of spectroscopic interest are pointed out.

scholarly journals Transverse Mass Distribution Characteristics of π0 Production in 208Pb-Induced Reactions and the Combinational Approach

2003 ◽  
Vol 18 (20) ◽  
pp. 1383-1396 ◽  
Author(s):  
Bhaskar De ◽  
S. Bhattacharyya
Keyword(s):  
Mass Distribution ◽  
Cross Sections ◽  
Transverse Mass ◽  
Distribution Characteristics ◽  
Multiple Production ◽  
Nuclear Collisions ◽  
High Energies ◽  
Transverse Mass Distribution ◽  
Simulation Based ◽  
Standard Models

The nature of invariant cross-sections and multiplicities in some 208Pb-induced reactions and some important ratio behaviors of the invariant multiplicities for various centralities of the collision will be dealt with here in the light of a combinational approach which has been built up recently by us. Next, the results would be compared with the outcome of some of the simulation-based standard models for multiple production in nuclear collisions at high energies. Finally, the implications of all this would be discussed.

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