Hard QCD processes and impact-parameter dependence of parton energy losses in ultrarelativistic nuclear collisions

2001 ◽  
Vol 64 (8) ◽  
pp. 1487-1499 ◽  
Author(s):  
I. P. Lokhtin ◽  
A. M. Snigirev
Keyword(s):  
Impact Parameter ◽  
Parameter Dependence ◽  
Energy Losses ◽  
Nuclear Collisions

scholarly journals Impact parameter dependence of the disappearance of transverse flow in nuclear collisions

1996 ◽  
Vol 53 (4) ◽  
pp. R1469-R1472 ◽  
Author(s):  
R. Pak ◽  
W. J. Llope ◽  
D. Craig ◽  
E. E. Gualtieri ◽  
S. A. Hannuschke ◽  
...  
Keyword(s):  
Impact Parameter ◽  
Transverse Flow ◽  
Parameter Dependence ◽  
Nuclear Collisions

Impact-Parameter dependence of inelastic energy losses for He and N ions channeled in Si

1975 ◽  
Vol 31 (1) ◽  
pp. 341-350 ◽  
Author(s):  
Yu. V. Bulgakov ◽  
V. S. Nikolaev ◽  
V. I. Shulga
Keyword(s):  
Impact Parameter ◽  
Parameter Dependence ◽  
Energy Losses ◽  
Inelastic Energy Losses

scholarly journals A note on the relations between elastic and inelastic interactions and increasing ratio σel(s)/σtot(s) at the LHC

2019 ◽  
Vol 34 (32) ◽  
pp. 1950259 ◽  
Author(s):  
S. M. Troshin ◽  
N. E. Tyurin
Keyword(s):  
Elastic Scattering ◽  
Energy Dependence ◽  
Impact Parameter ◽  
Cross Sections ◽  
Parameter Dependence ◽  
Slope Parameter ◽  
Short Notice ◽  
Inelastic Interactions ◽  
The Impact ◽  
Mode A

We comment briefly on relations between the elastic and inelastic cross-sections valid for the shadow and reflective modes of the elastic scattering. Those are based on the unitarity arguments. It is shown that the redistribution of the probabilities of the elastic and inelastic interactions (the form of the inelastic overlap function becomes peripheral) under the reflective scattering mode can lead to increasing ratio of [Formula: see text] at the LHC energies. In the shadow scattering mode, the mechanism of this increase is a different one, since the impact parameter dependence of the inelastic interactions probability is central in this mode. A short notice is also given on the slope parameter and the leading contributions to its energy dependence in both modes.

Impact parameter dependence ofK-shell excitation probabilities in Ar ? Ar-collisions

1982 ◽  
Vol 304 (2) ◽  
pp. 177-183 ◽  
Author(s):  
H. Schmidt-B�cking ◽  
H. Baumann ◽  
K. Bethge ◽  
A. Gruppe ◽  
W. Schadt ◽  
...  
Keyword(s):  
Impact Parameter ◽  
Parameter Dependence

Impact parameter dependence of the probability for K-shell ionization by nuclei

1975 ◽  
Vol 53 (5) ◽  
pp. 419-420 ◽  
Author(s):  
A.K. Kaminsky ◽  
V.S. Nikolaev ◽  
M.I. Popova
Keyword(s):  
Impact Parameter ◽  
Parameter Dependence ◽  
Shell Ionization

scholarly journals Impact Parameter Dependence ofπ-/π+Ratio in Probing the Nuclear Symmetry Energy Using Heavy-Ion Collisions

2016 ◽  
Vol 2016 ◽  
pp. 1-8 ◽  
Author(s):  
Gao-Feng Wei ◽  
Guo-Qiang He ◽  
Xin-Wei Cao ◽  
Yi-Xin Lu
Keyword(s):  
Impact Parameter ◽  
Symmetry Energy ◽  
Heavy Ion Collisions ◽  
Transport Model ◽  
Heavy Ion ◽  
Parameter Dependence ◽  
Central Collisions ◽  
Ion Collisions ◽  
Peripheral Collisions ◽  
The Impact

The impact parameter dependence ofπ-/π+ratio is examined in heavy-ion collisions at 400 MeV/nucleon within a transport model. It is shown that the sensitivity ofπ-/π+ratio on symmetry energy shows a transition from central to peripheral collisions; that is, the stiffer symmetry energy leads to a largerπ-/π+ratio in peripheral collisions while the softer symmetry energy always leads this ratio to be larger in central collisions. After checking the kinematic energy distribution ofπ-/π+ratio, we found this transition of sensitivity ofπ-/π+ratio to symmetry energy is mainly from less energetic pions; that is, the softer symmetry energy gets the less energetic pions to form a smallerπ-/π+ratio in peripheral collisions while these pions generate a largerπ-/π+ratio in central collisions. Undoubtedly, the softer symmetry energy can also lead more energetic pions to form a largerπ-/π+ratio in peripheral collisions. Nevertheless, considering that most of pions are insufficiently energetic at this beam energy, we therefore suggest theπ-/π+ratio as a probe of the high-density symmetry energy effective only in central at most to midcentral collisions, thereby avoiding the possible information of low-density symmetry energy carried inπ-/π+ratio from peripheral collisions.

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