Multiplicity characteristics in relativistic<sup>24</sup>Mg-nucleus collisions

Abdelsalam, A.; Shaat, E. A.; Abou-Moussa, Z.; Badawy, B. M.; Mater, Z. S.

doi:10.1088/1674-1137/37/8/084001

Cited by 8 publications

(21 citation statements)

References 38 publications

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“…This range is less than Hagedorn temperature of the hadronic matter ∼160 MeV. At average impact parameters of 3.7 A GeV 12 C, 28 Si, and 32 S interactions with emulsion nuclei [10] the temperature of the system producing forward emitted pion was predicted by Hagedorn spectrum as ∼112 MeV. This confirms that the forward emitted pion results from a fireball of nuclear matter.…”

Section: Introductionmentioning

confidence: 64%

“…The pion source varies according to the energy, system size, centrality, and emission zone. Our lab group has concerned it [10,[16][17][18][19][20][24][25][26][27][28][29][30][31][32][33]. The present interactions are 3.7 A GeV 4 He, 16 O, and 32 S with emulsion nuclei.…”

Section: Introductionmentioning

confidence: 85%

“…Our lab group has concerned it [10,[16][17][18][19][20][24][25][26][27][28][29][30][31][32][33]. The present interactions are 3.7 A GeV 4 He, 16 O, and 32 S with emulsion nuclei. This energy is the onset of the nuclear limiting fragmentation validity.…”

Section: Introductionmentioning

confidence: 85%

“…In the present experiment the produced shower particle multiplicity is interested as a tool to investigate the final state hadron production. The projectile size effect is examined over a qualitative wide range (A proj =4, 16,32). Nuclear emulsion usage can give a considerable wide range of target size (A T =1 up to 108).…”

Section: Introductionmentioning

confidence: 99%

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System size dependence of final state hadron sources atE_lab= 3.7 A GeV

Abdelsalam

El–Nagdy

Badawy

et al. 2020

J. Phys. G: Nucl. Part. Phys.

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3.7 A GeV 4He, 16O, and 32S beams from Dubna Synchrophasotron interacting in nuclear emulsion are used. The final state hadrons are approached by the produced shower particles. The dependence on the system size is examined. The data are discriminated according to the emission in the forward and backward zones over the 4π space. Minimum biased samples of events corresponding to average impact parameters are selected randomly. The data are compared to a simulation based on the modified FRITIOF event generator, implementing the Lund model string dynamics. The multiplicity characteristics present an overview of the parameters obtained when the distributions are fitted by the multisource thermal model. The forward emitted shower particles are suggested to be created in hadronization system due to multisource superposition. The backward emitted ones mostly result from target nucleus decay source in the framework of the limiting fragmentation hypothesis. Empirical parameterizations based primarily on fitting procedures are undertaken to fulfill the universality of some uniform relationships. Systematic uncertainties are estimated in terms of standard deviation within errors.

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Section: Introductionmentioning

confidence: 64%

Section: Introductionmentioning

confidence: 85%

Section: Introductionmentioning

confidence: 85%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

System size dependence of final state hadron sources atE_lab= 3.7 A GeV

Abdelsalam

El–Nagdy

Badawy

et al. 2020

J. Phys. G: Nucl. Part. Phys.

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“…The angle measurement of projectile fragment (PF) were performed in the narrow forward cone (θ Lab ≤10 0 ) [7,14]. θ p = tan −1 (∆y / ∆x)…”

Section: (B) Angle Measurement Of Projectile Fragmentsmentioning

confidence: 99%

Emission characteristics of the projectile fragments at relativistic energy

et al. 2012

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A projectile ( 84 Kr 36 ) having kinetic energy around 1 A GeV was used to expose NIKFI BR-2 emulsion target. A total of 700 inelastic events are used in the present studies on projectile fragments. The emission angle of the projectile fragments are strongly affected by charge of the other projectile fragments emitted at same time with different emission angle is observed. The angular distribution studies show symmetrical nature for lighter charge projectile fragments. The symmetrical nature decreased with the charge of projectile fragments. At ~4 o of emission angle for double charge projectile fragments, the momentum transfer during interaction is similar for various target species of emulsion were observed. We also observed a small but significant amplitude peaks on both side of the big peak for almost all light charge projectile fragments having different delta angle values. It reflects that there are few percent of projectile fragments that are coming from the decay of heavy projectile fragments or any other process.

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Emission characteristics of fast target protons in ultrarelativistic¹⁶O–nucleus collisions

et al. 2015

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The target fragmentation in 60A and 200A GeV 16O interactions with emulsion nuclei is analyzed. The validity of the nuclear limiting fragmentation hypothesis is confirmed at ultrarelativistic energies. The emission mechanism of the fast target proton (grey particle) is investigated in terms of the multiplicity characteristics. The anisotropy ratio and asymmetry parameter, while found to be independent of the projectile size or incident energy, are dependent on the target size and system centrality. This dependence is insignificant for heavy targets and in more central regions, where constancy exists. In this species, the system of the grey particle emission cannot exhibit the optimum symmetry or asymmetry between the forward and backward hemispheres. It is seen that these target protons originate from two emission sources in the earlier stage of the target fragmentation. One them emits nucleons isotropically in the 4π space. The other is the main emission source, which emits nucleons, in the forward hemisphere only, as a result of the binary nucleon–nucleon collisions and (or) intranuclear cascade.

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Multiplicity characteristics in relativistic²⁴Mg-nucleus collisions

Cited by 8 publications

References 38 publications

System size dependence of final state hadron sources atE_lab= 3.7 A GeV

System size dependence of final state hadron sources atE_lab= 3.7 A GeV

Emission characteristics of the projectile fragments at relativistic energy

Emission characteristics of fast target protons in ultrarelativistic¹⁶O–nucleus collisions

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Multiplicity characteristics in relativistic24Mg-nucleus collisions

Cited by 8 publications

References 38 publications

System size dependence of final state hadron sources atElab= 3.7 A GeV

System size dependence of final state hadron sources atElab= 3.7 A GeV

Emission characteristics of the projectile fragments at relativistic energy

Emission characteristics of fast target protons in ultrarelativistic16O–nucleus collisions

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Resources

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Multiplicity characteristics in relativistic²⁴Mg-nucleus collisions

System size dependence of final state hadron sources atE_lab= 3.7 A GeV

System size dependence of final state hadron sources atE_lab= 3.7 A GeV

Emission characteristics of fast target protons in ultrarelativistic¹⁶O–nucleus collisions