Measurement of charged-pion production by 7.28-Gev nitrogen ions

1975 ◽  
Vol 11 (7) ◽  
pp. 1743-1755 ◽  
Author(s):  
Kirby G. Vosburgh ◽  
Walter Schimmerling ◽  
Karl Koepke ◽  
Walter D. Wales
Keyword(s):  
Pion Production ◽  
Charged Pion ◽  
Nitrogen Ions

Measurement of Charged-Pion Production by 7.28-GeV Nitrogen Ions

1974 ◽  
Vol 33 (19) ◽  
pp. 1170-1173 ◽  
Author(s):  
Walter Schimmerling ◽  
Kirby G. Vosburgh ◽  
Karlheinz Koepke ◽  
Walter D. Wales
Keyword(s):  
Pion Production ◽  
Charged Pion ◽  
Nitrogen Ions

Experimental Study of Double-Charged Pion Production in (π−,p) Collisions at 900 MeV

1963 ◽  
Vol 130 (1) ◽  
pp. 357-361 ◽  
Author(s):  
Derek C. Colley ◽  
Joseph T. Ratau
Keyword(s):  
Experimental Study ◽  
Pion Production ◽  
Charged Pion

Charged pion production in e+e− annihilation at 14, 22 and 34 GeV CM energy

1982 ◽  
Vol 113 (1) ◽  
pp. 98-104 ◽  
Author(s):  
R. Brandelik ◽  
W. Braunschweig ◽  
K. Gather ◽  
F.J. Kirschfink ◽  
K. Lübelsmeyer ◽  
...  
Keyword(s):  
Pion Production ◽  
Charged Pion

scholarly journals Charged pion production in fixed-target Pb + Pb collisions at 158 GeV/nucleon

1999 ◽  
Vol 1 ◽  
pp. 23-23 ◽  
Author(s):  
◽  
G Ambrosini ◽  
R Arsenescu ◽  
C Baglin ◽  
J Beringer ◽  
...  
Keyword(s):  
Pion Production ◽  
Charged Pion ◽  
Fixed Target

Collision centrality dependencies of charged pion production in 12C+ 181 Ta collisions at 4.2 A GeV/c

2018 ◽  
Vol 27 (11) ◽  
pp. 1850092 ◽  
Author(s):  
Akhtar Iqbal ◽  
Khusniddin K. Olimov ◽  
Kosim Olimov ◽  
Mushtaq Ahmad ◽  
Sh. Z. Kanokova ◽  
...  
Keyword(s):  
Simple Model ◽  
Pion Production ◽  
Charged Pion ◽  
Heavy Ion ◽  
Emission Angle ◽  
Collision System ◽  
High Energies ◽  
Collision Centrality ◽  
Ion Collisions ◽  
Charged Pions

The collision centrality dependencies of the average kinematical characteristics of the negative and positive pions, produced in [Formula: see text] collisions at [Formula: see text], were investigated. The ratio [Formula: see text] proved to be [Formula: see text], [Formula: see text] and [Formula: see text] in the peripheral, semicentral, and central [Formula: see text] collision events, respectively, decreasing noticeably with increasing collision centrality. The suppression (decrease) of the ratio [Formula: see text] was observed in the semicentral and central [Formula: see text] collisions as compared to the ratio [Formula: see text], estimated using the simple model for [Formula: see text] collision system. The ratio [Formula: see text] estimated using the simple model agreed well with the corresponding ratio [Formula: see text], estimated for [Formula: see text] collisions at [Formula: see text] based on the Wounded Nucleon Model (WNM). Comparison of the emission angle as well as momentum distributions of the charged pions in the peripheral and central [Formula: see text] collisions revealed the significant decrease of the fraction of the relatively fast charged pions (with smaller emission angles) and increase of the fraction of the relatively slow charged pions (with larger emission angles) with an increase in collision centrality. The results of the present analysis can be useful for analysis of the centrality dependence of the charged pion production in heavy ion collisions at high energies.

scholarly journals Coulomb Interaction Effects on Pion Production in Au+Au Collisions at Relativistic Energies

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Catalin Ristea ◽  
Oana Ristea ◽  
Alexandru Jipa
Keyword(s):  
Transverse Momentum ◽  
Coulomb Interaction ◽  
Beam Energy ◽  
Pion Production ◽  
Charged Pion ◽  
Centrality Dependence ◽  
Central Collisions ◽  
Momentum Spectra ◽  
Transverse Momentum Spectra ◽  
Coulomb Effects

Coulomb effects on charged pion transverse momentum spectra measured in Au+Au collisions at RHIC-BES energies are investigated. From these spectra the π-/π+ ratios as a function of transverse momentum are obtained and used to extract the “Coulomb kick”, pc (a momentum change due to the Coulomb interaction), and initial pion ratio for three different collision energies and various centrality classes. The Coulomb kick shows a decrease with the increase of beam energy and a clear centrality dependence, with larger values for the most central collisions. The results are connected with the kinetic freeze-out dynamics.

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