Faddeev–Yakubovsky calculations for light ΛΛ hypernuclei

Filikhin, I.; Gal, A.

doi:10.1016/s0375-9474(02)01008-4

Cited by 115 publications

(308 citation statements)

References 58 publications

(189 reference statements)

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“…We conclude that ΛΛ interactions with 1/a 0 ≤ −0.8 fm −1 and r eff ≥ 3 fm are favored by the recent ΛΛ correlation preliminary data in high-energy heavy-ion collisions at RHIC by STAR collaboration [28]. These results are consistent with the analysis of the Nagara event, which is based on NSC97 interactions [19,20]. A more recent Nijmegen interaction, ESC08 [29], has a similar scattering parameters to fss2, and it is also in the above mentioned range.…”

Section: Exotic Interaction From Heavy Ion Collisions -λλ Interaction -supporting

confidence: 89%

Exotic hadrons and hadron–hadron interactions in heavy-ion collisions

et al. 2013

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We discuss the exotic hadron structure and hadron-hadron interactions in view of heavy ion collisions. First, we demonstrate that a hadronic molecule with a large spatial size would be produced more abundantly in the coalescence model compared with the statistical model result. Secondly, we constrain the ΛΛ interaction by using the recently measured ΛΛ correlation data. We find that the RHIC-STAR data favor the ΛΛ scattering parameters in the range 1/a 0 ≤ −0.8 fm −1 and r eff ≥ 3 fm.

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Section: Exotic Interaction From Heavy Ion Collisions -λλ Interaction -supporting

confidence: 89%

Exotic hadrons and hadron–hadron interactions in heavy-ion collisions

et al. 2013

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“…In Table III [27] and then confirmed and explained in [40]. The origin of this difference is charge symmetry breaking ΛN interaction.…”

Section: Resultsmentioning

confidence: 51%

Hyperonic mixing in five-baryon double-strangeness hypernuclei in a two-channel treatment

Lanskoy

Yamamoto

2004

Phys. Rev. C

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Properties of hypernuclei 5ΛΛ H and 5 ΛΛ He are studied in a two-channel approach with explicit treatment of coupling of channels 3 Z + Λ + Λ and α + Ξ. Diagonal ΛΛ and coupling ΛΛ − ΞN interactions are derived within G-matrix procedure from Nijmegen meson-exchange models. Bond energy ∆BΛΛ in 5 ΛΛ He exceeds significantly that in 5 ΛΛ H due to the channel coupling. Diagonal Ξα attraction amplifies the effect, which is sensitive also to Λ-core interaction. The difference of the ∆BΛΛ values can be an unambiguous signature of the ΛΛ − ΞN coupling in ΛΛ hypernuclei. However, improved knowledge of the hyperon-nucleus potentials is needed for quantitative extraction of the coupling strength from future data on the ΛΛ hypernuclear binding energies.

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“…For more details please refer [21], where the shaded band represents the systematic error and the other filled points are fit to STAR data from K. Morita, T. Furumoto and A. Ohnishi [26]. Also, the Λ − Λ interaction parameters which reproduce the NAGARA event are shown as astrisk [27,28]. The interaction parameters from pp,pp, pn singlet (s) and triplet (t) states, and from nn, pΛ (s) and pΛ (t) states are shown as open markers [29,30].…”

Section: λ − λ Correlation Functionmentioning

confidence: 99%

Study of Hyperon Interaction from Heavy-Ion Collisions using STAR Detector at RHIC

Shah¹

2017

Proceedings of the 12th International Conference on Hypernuclear and Strange Particle Physics (HYP2015)

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Hyperon interactions are of fundamental interest in nuclear physics and nuclear astrophysics. For example, the hyperon-nucleon and the hyperon-hyperon (YY) interaction plays an important role in attempts to understand the structure of neutron stars. The YY interaction is also closely related to the possible existence of many exotic states. A direct YY scattering experiment is not feasible in a laboratory. An alternative possibility to access the information on the YY interactions has been explored in the relativistic heavy-ion collisions, where the hyperon-hyperon correlation function is used to study the interaction potential between the hyperons in the final-state at the last stage of the evolution. We discuss the recent studies on the YY interactions from the STAR experiment, focusing on the first high statistics measurement of the Λ − Λ correlation function and the future of this program.

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Faddeev–Yakubovsky calculations for light ΛΛ hypernuclei

Cited by 115 publications

References 58 publications

Exotic hadrons and hadron–hadron interactions in heavy-ion collisions

Exotic hadrons and hadron–hadron interactions in heavy-ion collisions

Hyperonic mixing in five-baryon double-strangeness hypernuclei in a two-channel treatment

Study of Hyperon Interaction from Heavy-Ion Collisions using STAR Detector at RHIC

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