Searching for $^4\overline{L}i$ by momentum correlation function of $\overline{p}-^3\overline{H}e$

Xi, Bao-Shan; Zhang, Zheng-Qiao; Zhang, Song; Ma, Yu-Gang

doi:10.48550/arxiv.1909.03157

Cited by 3 publications

(13 citation statements)

References 25 publications

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“…The resonance contribution to the correlation function does not depend on the source radius. However, the computation [32] is not only much oversimplified but the resonance peak is far too narrow and consequently the shape of the correlation function is very different from that shown in our Fig. 8.…”

Section: Resonance Interactioncontrasting

confidence: 65%

“…As noted in the Introduction, the p − 3 He correlation function has been recently computed [32]. However, the resonance interaction has not been taken into account in the correlation function but the p− 3 He pairs coming from the two-body decays of 4 Li have been generated by means of a Monte Carlo method and added to the correlation function which includes the s−wave scattering and Coulomb repulsion as our R 0 (q).…”

Section: Resonance Interactionmentioning

confidence: 99%

“…The correlation function was also measured at relativistic collision energies at AGS and the yield of 4 Li was estimated [31]. Recently a search of 4 Li production at RHIC has been also advocated in [32].…”

Section: Introductionmentioning

confidence: 99%

“…The function has been recently computed[32] but as we explain in Sec. IV the computation is much oversimplified if correct at all.…”

mentioning

confidence: 99%

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Production of $^4{\rm Li}$ and $p\!-\!^3{\rm He}$ correlation function in relativistic heavy-ion collisions

Bazak,

Mrowczynski

2020

Preprint

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Section: Resonance Interactioncontrasting

confidence: 65%

Section: Resonance Interactionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…The function has been recently computed[32] but as we explain in Sec. IV the computation is much oversimplified if correct at all.…”

mentioning

confidence: 99%

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Production of $^4{\rm Li}$ and $p\!-\!^3{\rm He}$ correlation function in relativistic heavy-ion collisions

Bazak,

Mrowczynski

2020

Preprint

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“…In ultra-relativistic nuclear collisions, the first measurement of two-antiproton interaction was realized by analyzing the momentum correlation function between antiprotons, and the scattering length and effective range for the antiproton interactions were quantitatively extracted experimentally [43,44]. The same method was also proposed to search for new exotic hadron candidates (e.g., a possible dibaryon candidate N Ω [45][46][47] and a new antimatter nucleus 4 Li [48]. Furthermore, this method has been applied to study some light nuclei with exotic structures, including proton-rich nuclei ( 22 Mg and 23 Al, etc.…”

Section: Introductionmentioning

confidence: 99%

Two-proton momentum correlation from photodisintegration of α -clustering light nuclei in the quasideuteron region

Huang

Ma²

2020

Phys. Rev. C

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The proton-proton momentum correlation function is constructed in three-body photodisintegration channels from 12 C and 16 O targets in the quasi-deuteron regime within the framework of an extended quantum molecular dynamics model. Using the formula of Lednicky and Lyuboshitz (LL) for the momentum correlation function, we obtain a proton-proton momentum correlation function for the specific three-body photon-disintegration channels of 12 C and 16 O targets, which are assumed to have different initial geometric structures, and extract their respective emission source sizes for the proton-proton pair. The results demonstrate that constructing a proton-proton momentum correlation is feasible in photo-nuclear reactions, and it is sensitive to the initial nuclear structure. For future experimental studies investigating the α-clustering structures of light nuclei, the present work can be used to shed light on the performance and correlation function analysis of (γ,pp) or (e,e pp) reactions.

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Production of $$^4\mathrm{Li}$$ and $$p\!-\!^3\mathrm{He}$$ correlation function in relativistic heavy-ion collisions

Bazak

Mrówczyński

2020

Eur. Phys. J. A

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The thermal and coalescence models both describe well yields of light nuclei produced in relativistic heavy-ion collisions at LHC. We propose to measure the yield of $$^4\mathrm{Li}$$ 4 Li and compare it to that of $$^4\mathrm{He}$$ 4 He to falsify one of the models. Since the masses of $$^4\mathrm{He}$$ 4 He and $$^4\mathrm{Li}$$ 4 Li are almost equal, the yield of $$^4\mathrm{Li}$$ 4 Li is about 5 times bigger than that of $$^4\mathrm{He}$$ 4 He in the thermal model because of different numbers of spin states of the two nuclides. Their internal structures are, however, very different: the alpha particle is well bound and compact while $$^4\mathrm{Li}$$ 4 Li is weakly bound and loose. Consequently, the ratio of yields of $$^4\mathrm{Li}$$ 4 Li to $$^4\mathrm{He}$$ 4 He is significantly smaller in the coalescence model and it strongly depends on the collision centrality. Since the nuclide $$^4\mathrm{Li}$$ 4 Li is unstable and it decays into $$^3\mathrm{He}$$ 3 He and p, the yield of $$^4\mathrm{Li}$$ 4 Li can be experimentally obtained through a measurement of the $$p\!-\!^3\mathrm{He}$$ p - 3 He correlation function. The function carries information not only about the yield of $$^4\mathrm{Li}$$ 4 Li but also about the source of $$^3\mathrm{He}$$ 3 He and allows one to determine through a source-size measurement whether of $$^3\mathrm{He}$$ 3 He is directly emitted from the fireball or it is formed afterwards. We compute the correlation function taking into account the s-wave scattering and Coulomb repulsion together with the resonance interaction responsible for the $$^4\mathrm{Li}$$ 4 Li nuclide. We discuss how to infer information about an origin of $$^3\mathrm{He}$$ 3 He from the correlation function, and finally a method to obtain the yield of $$^4\mathrm{Li}$$ 4 Li is proposed.

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Searching for $^4\overline{L}i$ by momentum correlation function of $\overline{p}-^3\overline{H}e$

Cited by 3 publications

References 25 publications

Production of $^4{\rm Li}$ and $p\!-\!^3{\rm He}$ correlation function in relativistic heavy-ion collisions

Production of $^4{\rm Li}$ and $p\!-\!^3{\rm He}$ correlation function in relativistic heavy-ion collisions

Two-proton momentum correlation from photodisintegration of α -clustering light nuclei in the quasideuteron region

Production of $$^4\mathrm{Li}$$ and $$p\!-\!^3\mathrm{He}$$ correlation function in relativistic heavy-ion collisions

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