Production cross sections for heavy-ion fragmentation reactions on a liquid deuterium target at intermediate energies

2006 ◽  
Vol 74 (3) ◽  
Author(s):  
B. T. Roeder ◽  
K. W. Kemper ◽  
N. Aoi ◽  
D. Bazin ◽  
M. Bowen ◽  
...  
Keyword(s):  
Cross Sections ◽  
Production Cross ◽  
Heavy Ion ◽  
Ion Fragmentation ◽  
Intermediate Energies ◽  
Deuterium Target ◽  
Fragmentation Reactions

SIGMA MESON PRODUCTION IN HEAVY ION COLLISIONS AT INTERMEDIATE ENERGIES

2007 ◽  
Vol 22 (32) ◽  
pp. 6219-6226
Author(s):  
PORNRAD SRISAWAD ◽  
YU-MING ZHENG ◽  
CHRISTIAN FUCHS ◽  
AMAND FAESSLER ◽  
YUPENG YAN ◽  
...  
Keyword(s):  
Cross Sections ◽  
Production Cross ◽  
Meson Production ◽  
Heavy Ion ◽  
Mass Shift ◽  
Quantum Molecular Dynamics ◽  
Final State ◽  
Intermediate Energies ◽  
Simulation Results ◽  
Proton Induced Reactions

The production of the sigma (σ) meson is investigated in the quantum molecular dynamics model for the p+A reactions with the nuclei A being 12 C , 40 Ca and 208 Pb at the incident proton energies Ep = 1.50 GeV . The simulation results indicates a distinctive A dependence of the sigma production, that is, the increase of A is followed by an increase of the production cross-sections. The σ meson production in proton induced reactions is strongly medium-dependent, and the produced σ mesons decaying in a denser medium experience a stronger mass shift towards lower masses. This mass shift is an experimentally accessible observable in the final state pion pairs which did not suffer reabsorption by the surrounding nucleons. It is pointed out that the ratio of the simulation results of measurable σ mesons (in the form of two pions) cross-sections as a function of the sigma invariant-mass from various reactions opens the possibility to address experimentally the mass shift of the σ in a dense nuclear environment.

scholarly journals Combined Transport and Statistical Description of Heavy-ion Fragmentation Reactions

2019 ◽  
Vol 12 (3) ◽  
pp. 619
Author(s):  
T.I. Mikhailova ◽  
B. Erdemchimeg ◽  
A.G. Artukh ◽  
M. Di Toro ◽  
H.H. Wolter
Keyword(s):  
Heavy Ion ◽  
Ion Fragmentation ◽  
Fragmentation Reactions

MATRIX EFFECTS ON K-SHELL IONIZATION CROSS SECTIONS IN Al/Si ALLOYS

2002 ◽  
Vol 12 (01n02) ◽  
pp. 1-5
Author(s):  
M. NEKAB ◽  
Ch. HEITZ
Keyword(s):  
Cross Sections ◽  
Matrix Effects ◽  
Production Cross ◽  
Heavy Ion ◽  
Double Scattering ◽  
Scattering Mechanism ◽  
Ionization Cross ◽  
X Ray ◽  
Ionization Cross Sections ◽  
Shell Ionization

Thick targets consisting in Al/Si alloys were bombarded with 1.0 to 5.0 MeV Ar ions. The K X-ray production cross sections were deduced from the measured yields by using the Merzbacher-Lewis formula extended to heavy ion bombardment. The density dependence on the K X-ray production cross sections of Al and Si was observed. This phenomena can be interpreted within the molecular orbital double-scattering mechanism.

Double-differential heavy-ion production cross sections

2004 ◽  
Vol 110 (1-4) ◽  
pp. 53-56 ◽  
Author(s):  
T. M. Miller ◽  
L. W. Townsend
Keyword(s):  
Cross Sections ◽  
Production Cross ◽  
Heavy Ion ◽  
Ion Production
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