Feynman-diagram approach in heavy-ion interactions

1967 ◽  
Vol 52 (2) ◽  
pp. 570-573 ◽  
Author(s):  
L. Taffara ◽  
V. Vanzani
Keyword(s):  
Feynman Diagram ◽  
Heavy Ion ◽  
Ion Interactions ◽  
Diagram Approach

Evidence of non-thermal phase transition in ultrarelativistic heavy-ion interactions

1998 ◽  
Vol 41 (4) ◽  
pp. 371-376 ◽  
Author(s):  
D Ghosh ◽  
A. K Jafry ◽  
A Deb ◽  
S Sarkar ◽  
R Chattopadhyay ◽  
...  
Keyword(s):  
Phase Transition ◽  
Heavy Ion ◽  
Ion Interactions ◽  
Thermal Phase Transition ◽  
Thermal Phase

The multiplicity characteristics of 7Li-Em interactions as a function of noninteracting projectile nucleons

2020 ◽  
Vol 29 (08) ◽  
pp. 2050063
Author(s):  
M. Mohery ◽  
E. M. Sultan ◽  
N. N. Abdallah ◽  
M. H. Farghaly
Keyword(s):  
Impact Parameter ◽  
Charged Particles ◽  
Heavy Ion ◽  
The Other ◽  
Total Charge ◽  
Secondary Particles ◽  
Ion Interactions ◽  
Charged Secondary ◽  
The Impact ◽  
Relativistic Particles

In this work, the interactions of 7Li nuclei with emulsion at 3 A GeV/c were studied. Multiplicity of the charged secondary particles as well as the charge of the outgoing projectile fragments were measured, while correlations among them are discussed. The values of the total charge of the noninteracting projectile nucleons and the average number of interacting projectile nucleons are estimated. The dependence of the secondary particles on the number of heavily-ionized tracks is analyzed. The results show that interactions of 7Li nuclei with emulsion nuclei exhibit a number of regularities, which had been noted in experiments with lighter nuclei. The absorption of relativistic particles, while increasing the degree of target destruction, is observed. The average multiplicities of the secondary charged particles depend on the impact parameter, as their values increase, while decreasing the impact parameter. The number of secondary charged particles in the heavy-ion interactions depends on the degree of disintegration of the target nuclei. This dependence is not observed in the case of the interaction of hadron with emulsion. The experimental data of the interaction of 7Li are systematically compared with the other interactions at different energies. The results agree with the corresponding results at nearly the same energy.

scholarly journals Causality constraints on hadron production in high energy collisions

2014 ◽  
Vol 23 (04) ◽  
pp. 1450019 ◽  
Author(s):  
Paolo Castorina ◽  
Helmut Satz
Keyword(s):  
Baryon Number ◽  
Heavy Ion ◽  
High Energy ◽  
Hadron Production ◽  
Space Time ◽  
Horizon Problem ◽  
Ion Interactions ◽  
Quantum Numbers ◽  
High Energy Collisions ◽  
Finite Space

For hadron production in high energy collisions, causality requirements lead to the counterpart of the cosmological horizon problem: the production occurs in a number of causally disconnected regions of finite space-time size. As a result, globally conserved quantum numbers (charge, strangeness, baryon number) must be conserved locally in spatially restricted correlation clusters. This provides a theoretical basis for the observed suppression of strangeness production in elementary interactions (pp, e+e-). In contrast, the space-time superposition of many collisions in heavy ion interactions largely removes these causality constraints, resulting in an ideal hadronic resonance gas in full equilibrium.

Rescattering probed by the emission of slow target associated particles in high-energy heavy-ion interactions

1995 ◽  
Vol 363 (4) ◽  
pp. 230-236 ◽  
Author(s):  
M.I Adamovich ◽  
M.M Aggarwal ◽  
Y.A Alexandrov ◽  
R Amirikas ◽  
N.P Andreeva ◽  
...  
Keyword(s):  
Heavy Ion ◽  
High Energy ◽  
Ion Interactions
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