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Average multiplicity of light nuclei produced in different interactions at 4.2A GeVc is studied as a function of centrality. A change in multiplicity is observed with increase in the mass of projectile. In 12CC-interactions an unexpected…

核实验 · 物理学 2015-09-02 Kamal Hussain Khan , M. K. Suleymanov , M. Ajaz , Ali Zaman

The formation of light nuclei can be described as the coalescence of clusters of nucleons into nuclei. In the case of small interacting systems, such as dark matter and $e^+e^-$ annihilations or $pp$ collisions, the coalescence condition is…

高能物理 - 唯象学 · 物理学 2021-06-02 M. Kachelriess , S. Ostapchenko , J. Tjemsland

The production of light anti- and hyper-nuclei provides unique observables to characterise the system created in high energy proton-proton (pp), proton-nucleus (pA) and nucleus-nucleus (AA) collisions. In particular, nuclei and hyper-nuclei…

高能物理 - 唯象学 · 物理学 2019-07-26 Francesca Bellini , Alexander P. Kalweit

Some experimental results on nuclear transparency effect in pC- and dC-interaction at 4.2 A GeV/c (JINR Dubna) are presented. The "half angle" ({\theta}1/2) technique was used and the particles with emission angle greater and less than…

核实验 · 物理学 2012-03-29 M. Ajaz , M. K. Suleymanov , K. H. Khan , A. Zaman

Experimental data on multiplicities and kinematical characteristics of $\pi^-$, $\pi^+$ mesons and protons in the interactions of protons with carbon nucleus at momentum 4.2 GeV/c in a dependence of collision centrality are analyzed.…

高能物理 - 实验 · 物理学 2007-05-23 A. Galoyan , E. N. Kladnitskaya , O. V. Rogachevskii , R. Togoo , V. V. Uzhinskii

Loosely bound light nuclei are produced in abundance in heavy-ion collisions. There are two main possible models to explain their production mechanism - the thermal model and the coalescence model. The thermal model suggests that the light…

核实验 · 物理学 2023-07-25 Rishabh Sharma

We study the production of light nuclei in the coalescence mechanism in Au-Au collisions at midrapidity at $\sqrt{s_{NN}}=3$ GeV. We derive analytic formulas of momentum distributions of two bodies, three bodies and four nucleons coalescing…

高能物理 - 唯象学 · 物理学 2023-10-17 Rui-Qin Wang , Ji-Peng Lv , Yan-Hao Li , Jun Song , Feng-Lan Shao

With the kinetic freeze-out nucleons and antinucleons obtained from the quark combination model, we study the production of light nuclei and antinuclei in the (anti-)nucleon coalescence mechanism in relativistic heavy ion collisions. We…

高能物理 - 唯象学 · 物理学 2022-06-16 Xiang-Yu Zhao , Yan-Ting Feng , Feng-Lan Shao , Rui-Qin Wang , Jun Song

The production of light (anti)nuclei have been investigated using the dynamically constrained phase-space coalescence model based on the final-state hadrons generated by the PACIAE model in Cu+Cu collisions at $\sqrt{s_{\rm{NN}}}=200$GeV…

核理论 · 物理学 2021-02-23 Liu Feng-Xian , Chen Gang , She Zhi-Lei , Zhou Dai-Mei , Xie Yi-Long

The energy densities reached in high-energy hadronic collisions at the LHC allow significant production of light (anti)nuclei. Their production yields have been measured as a function of $p_{\rm T}$ and charged-particle multiplicity in…

核实验 · 物理学 2022-02-16 Chiara Pinto

The measurement of (anti)nuclei production in pp, p-A and A-A collisions at ultrarelativistic energies is important to understand hadronization. The excellent tracking and particle identification capabilities of ALICE make it the most…

核实验 · 物理学 2020-10-07 Chiara Pinto

The nucleon coalescence model is one of the most popular theoretical models for light nuclei production in high-energy heavy-ion collisions. The production of light nuclei $d$, $t$, $^{3}$He, and $^{4}$He is studied using the transport…

核理论 · 物理学 2023-05-05 Yue Xu , Xionghong He , Nu Xu

The yields and ratios of light nuclei in heavy-ion collisions offer a method to distinguish between the thermal and coalescence models. Ratios such as $\rm N_t \times N_p/N_d^2$ and $\rm N_{^3He} \times N_p/N_d^2$ are suggested as potential…

核实验 · 物理学 2024-12-03 Yixuan Jin

The production of (anti-)deuteron and (anti-)$^{3}$He nuclei in Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 2.76 TeV has been studied using the ALICE detector at the LHC. The spectra exhibit a significant hardening with increasing centrality.…

核实验 · 物理学 2016-04-12 ALICE Collaboration

Multiparticle spike-production process is investigated in central C-Cu collisions at 4.5 $A$ Gev/c per nucleon. The study is based on two different hypotheses - stochastic vs. coherent - of the formation of spikes. To observe manifestations…

高能物理 - 唯象学 · 物理学 2007-05-23 G. L. Gogiberidze , L. K. Gelovani , E. K. Sarkisyan

The use of nuclear transparency effect of \pi^{-}-mesons in proton, and deuteron induced interactions with carbon nuclei at 4.2A GeV/c, to get information about the properties of nuclear matter, is presented in this work. Half angle…

核实验 · 物理学 2013-03-25 Muhammad Ajaz , Mais K. Suleymanov , Kamal Hussain Khan , Ali Zaman

The studies of the production of light nuclei, such as deuteron and helium nuclei, in heavy-ion collisions are essential for understanding the dynamics of nuclear matter under extreme conditions. The yields and ratios of light nuclei serve…

核实验 · 物理学 2025-12-17 Yixuan Jin

Experiments involving copper-copper collisions at the RHIC-BNL (USA) at energies $\sqrt{s_{NN}}$ = 22.5, 62 and 200 GeV have produced a vast amount of high-precision data which are to be analysed in the light of various competing models in…

高能物理 - 唯象学 · 物理学 2015-03-13 P. Guptaroy , Goutam Sau , S. K. Biswas , S. Bhattacharyya

A model describing nuclear collisions at intermediate energies is presented and the results are compared with recently measured double differential cross sections in C-C reactions at 95 MeV/nucleon. Results show the key role played by…

核理论 · 物理学 2016-08-24 Jérémie Dudouet , Dominique Durand

Based on nucleons ($p$, $n$) and hyperons ($\Lambda$, $\Omega^-$) formed at kinetic freeze-out from a quark combination model, we systematically study the production of light nuclei and hyper-nuclei in the hadronic coalescence picture. We…

核理论 · 物理学 2026-03-24 Jiang-He Qiao , Jian-Yu Liu , Yan-Ting Feng , Feng-Lan Shao , Rui-Qin Wang
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