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Heavy Ion Fusion

Reaction mechanisms in heavy ion fusion

Reaction mechanisms in heavy ion fusion

... Heavy ion fusion is a subject that has received a great amount of attention in the last four decades, but this field is still quite alive and periodically new phenomena are dis- ...regime, ...

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Evolving theoretical descriptions of heavy-ion fusion: from phenomenological to microscopic approaches

Evolving theoretical descriptions of heavy-ion fusion: from phenomenological to microscopic approaches

... Figure 4 summarizes the current status of theoretical ap- proaches to heavy-ion subbarrier fusion reactions. The coupled-channels approach with the collective model is categorized as a macroscopic ...

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Recent developments in heavy-ion fusion reactions around the Coulomb barrier

Recent developments in heavy-ion fusion reactions around the Coulomb barrier

... is, fusion takes place only by quantum tunneling at energies below the Coulomb barrier, and the subbarrier enhancement of fusion cross sections can be viewed as a consequence of a coupling assisted ...

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Heavy-ion fusion hindrance in systems with positive Q value

Heavy-ion fusion hindrance in systems with positive Q value

... lines will be relatively high (≥ 10%). The background spec- trum will be significant in singles, especially at low beam energies where the 12 C + 12 C fusion cross section is very small. Measurements with ...

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Retarding friction versus white noise in the description of heavy ion fusion

Retarding friction versus white noise in the description of heavy ion fusion

... During last three decades significant efforts had been undertaken in modeling the heavy ion capture process resulting at the energies well above the Coulomb barrier [1-5]. However, we did not manage to find ...

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Smooth transition from sudden to adiabatic states in heavy-ion fusion reactions at deep-subbarrier incident energies

Smooth transition from sudden to adiabatic states in heavy-ion fusion reactions at deep-subbarrier incident energies

... basic ion-ion potential V N (0) , because the di- agonal part of this potential satisfies the conditions (1)-(3) by choosing a suitable neck-formed shape for the one-body system, as has been shown in our ...

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Studies for the effect of the positive Q-value neutron transfers on sub-barrier heavy-ion fusion

Studies for the effect of the positive Q-value neutron transfers on sub-barrier heavy-ion fusion

... near-barrier fusion with heavy-ions, measured by an electro- static deflector ...barrier fusion of 32 S + 90,94,96 Zr, 16 O + 76 Ge, 18 O + 74 Ge, and 16,18 O + 58 Ni are ...

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Dynamical Dipole mode in heavy-ion fusion reactions

Dynamical Dipole mode in heavy-ion fusion reactions

... The present work allows to take a step forward in the study of superheavy element formation, demonstrating that the DD γ radiation, a possible cooling mechanism of the com- posite system along the fusion path, ...

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Present status of coupled-channels calculations for heavy-ion subbarrier fusion reactions

Present status of coupled-channels calculations for heavy-ion subbarrier fusion reactions

... In the coupled-channels approach for heavy-ion fusion reactions, the fol- lowing simplifications are usually employed. Firstly, the model space is restricted only to low-lying collective excitations, ...

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Recent Results on Fusion and Direct Reactions with Weakly Bound Stable Nuclei

Recent Results on Fusion and Direct Reactions with Weakly Bound Stable Nuclei

... In heavy ion fusion studies with stable nuclei, the im- portant observations made in the last few decades are the discovery of sub-barrier fusion enhancement and their the- oretical ...

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Fusion hindrance in light and heavy systems

Fusion hindrance in light and heavy systems

... Heavy-ion fusion reactions near and below the barrier are typical phenomena where the interplay of reaction dynam- ics and nuclear structure leads to a large enhancement of the fusion ...

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Recent STAR heavy-ion results

Recent STAR heavy-ion results

... in heavy-ion collisions at the STAR experiment also extends considerably the range of search for the new ...physics. Heavy quarks (D, J/ψ) provide an exceptional probe in understanding properties of ...

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STAR highlights on heavy ion physics

STAR highlights on heavy ion physics

... Both Heavy Flavor Tracker (HFT) and Muon Telescope Detector (MTD) were fully installed for run14 at RHIC in year ...on heavy quark hadron and heavy quarkonium ...

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Measurements of jets in heavy ion collisions

Measurements of jets in heavy ion collisions

... The history of the definition of jets in particle physics provides some useful lessons for measurements in heavy ion collisions. After years of di ff erent definitions of jets in theory and experiment, the ...

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Jet charge in heavy-ion collisions

Jet charge in heavy-ion collisions

... In heavy-ion collisions, jet charge is a promising observable, which can be used to study the initial-state and final-state ...in heavy nucleus resulting in different fractions of up-quark and down- ...

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Hyperons polarization in heavy-ion collisions

Hyperons polarization in heavy-ion collisions

... We investigated vorticity and hydrodynamical helicity in noncentral heavy-ion collisions in the frame- work of the kinetic Quark-Gluon String Model. We have confirmed our earlier observation that the ...

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Resonance Production in Heavy-Ion Collisions

Resonance Production in Heavy-Ion Collisions

... Abstract. Hadronic resonances are unique probes that allow the properties of heavy- ion collisions to be studied. Topics that can be studied include modification of spectral shapes, in-medium energy loss of ...

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Aspects of heavy-ion collisions at the LHC

Aspects of heavy-ion collisions at the LHC

... of heavy quarkonia in the quark-gluon plasma in PbPb colli- sions with respect to pp at the same LHC energy of ...the heavy Υ meson in its 1 S ground state, and in the 2 S and 3 S excited states that have ...

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Microscopic approach to heavy-ion reactions

Microscopic approach to heavy-ion reactions

... considering fusion reactions by using frozen ground state densities is a useful starting point, most of the time it is not representative of how a fusion reaction should evolve, especially for ...

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Collective Phenomena in Heavy Ion Collisions

Collective Phenomena in Heavy Ion Collisions

... LHC 1 the exploration of systems at higher temperatures and lower baryonic densities will be continued. These conditions existed in the early Universe when it suffered a phase transition from a quark-gluon plasma to ...

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