Studying of hypernuclei with nuclotron beams

Averyanov, Alexander; Avramenko, S.A.; Aksinenko, V. D.; Anikina, M.; Bazylev, S. N.; Balandin, V. P.; Batusov, Yu.A.; Belikov, Yu.A.; Borzunov, Yu.T.; Borodina, O.; Golokhvastov, A. I.; Golovanov, L.B.; Granja, Carlos; Иванов, А.; Ivanov, Yu. L.; Isupov, A.; Kohout, Z.; Korotkova, A.; Litvinenko, A.; Lukstiņš, J.; Malakhov, A.; Majling, L.; Majlingová, O.; Manyakov, P.K.; Matyushin, V.T.; Migulina, I. I.; Nikolaevsky, G. P.; Okhrimenko, O.; Parfenov, A.; Parfenova, N. G.; Peresedov, V.; Plyashkevich, S.N.; Pospı́šil, S.; Rukoyatkin, P.; Saitov, I.S.; Salmin, R. A.; Slepnev, V. M.; Slepnev, I. V.; Solar, M.; Sopko, B.; Sopko, V.; Strokovsky, E. A.; Терещенко, В.; Feshchenko, A.; Horažďovský, T.; Chren, D.; Chencov, Yu. A.; Yudin, I.P.

doi:10.1134/s1063778808120119

Cited by 9 publications

(7 citation statements)

References 27 publications

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“…Only for a few isotopes (e.g., 4 He, 8 Li, and 8 Be), we obtain inclusive cross sections slightly different than those predicted by the coalescence model. It is worthwhile to highlight the important differences.…”

Section: Resultscontrasting

confidence: 72%

“…2-4) is that the cross section for formation of 9 Be is large and an order of magnitude higher than those predicted within the coalescence model, and this prediction should be easily verified by future experiments planned at FAIR and MPD/NICA. Finally, we note that the previous experimental data for the production cross sections of 4 H and 3 H hypernuclei [2,4] have been obtained with very light beams (He, Li) at 3.7A GeV (laboratory system) on a carbon fixed target. We cannot study using our approach these light colliding systems, since they are out of the limit of applicability within our phenomenology.…”

Section: Resultsmentioning

confidence: 84%

“…For 1 H, 2 H, 3 H, 3 He, 4 He, 5 He, 5 Li, 6 He, 6 Li, and 6 Be, we use the experimental ground-state energy and no excited states. For atomic mass a > 6, we use the generic formula from Eq.…”

Section: Hn Azh = Hmentioning

confidence: 99%

“…They found that relativistic heavy ion collisions (rHICs) offer the best possibility of creating an exotic finite nuclear system with finite strangeness. However, the experimental results have so far been rather limited due to the short lifetime of hypernuclei [2][3][4], which impedes their detection. Since the mechanism of the heavy ion induced hypernuclear reaction is not well understood, this field of research has attracted mainly theoretical interest; see, e.g., Refs.…”

Section: Introductionmentioning

confidence: 99%

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Model for hypernucleus production in heavy ion collisions

Pop

Gupta

2010

Phys. Rev. C

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We estimate the production cross sections of hypernuclei in projectile like fragment (PLF) in heavy ion collisions. The discussed scenario for the formation cross section of hypernucleus is: (a) Lambda particles are produced in the participant region but have a considerable rapidity spread and (b) Lambda with rapidity close to that of the PLF and total momentum (in the rest system of PLF) up to Fermi motion can then be trapped and produce hypernuclei. The process (a) is considered here within Heavy Ion Jet Interacting Generator HIJING-BBbar model and the process (b) in the canonical thermodynamic model (CTM). We estimate the production cross-sections for light hypernuclei for C + C at 3.7 GeV total nucleon-nucleon center of mass energy and for Ne+Ne and Ar+Ar collisions at 5.0 GeV. By taking into account explicitly the impact parameter dependence of the colliding systems, it is found that the cross section is different from that predicted by the coalescence model and large discrepancy is obtained for 6_He and 9_Be hypernuclei.Comment: 9 pages, 4 figures, 3 tables, revtex4, added reference

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Section: Resultscontrasting

confidence: 72%

Section: Resultsmentioning

confidence: 84%

Section: Hn Azh = Hmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Model for hypernucleus production in heavy ion collisions

Pop

Gupta

2010

Phys. Rev. C

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“…tials V K − based on 1N energy-independent f K − N input consisting of threshold values (Baca, Garcia-Recio, and Nieves, 2000). Such potentials do not penetrate significantly beyond 10% of ρ 0 and also do not provide equally good atomic fits as shown in Fig.…”

Section: Viik-nuclear Interactions and Bound Statesmentioning

confidence: 99%

Strangeness in nuclear physics

2016

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On the initial approximation of charged particle tracks in detectors with linear sensing elements

Belyaev

Avramenko

Agakishiev

et al. 2019

Nuclear Instruments and Methods in Physics Research Section A:

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The search for charged particle tracks in detectors with linear sensing elements, such as wire chambers, strip silicon detectors etc., starts with identification of straight track segments. The latter are deduced by constructing all possible combinations of activated detector elements. In the high multiplicity environment, with many activated detector elements, this causes large combinatorics and significantly reduces the performance of the track finding algorithms. In this report we trace this problem back to determination of the parameters of a straight line build from a number of skew lines (sensing elements of a detector) in space. Based on the intersection points of two hyperbolas, we demonstrate an analytic solution in the case of four skew detector elements.The procedure can also be applied as a first approximation to the more general case of curved track finding.

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Studying of hypernuclei with nuclotron beams

Cited by 9 publications

References 27 publications

Model for hypernucleus production in heavy ion collisions

Model for hypernucleus production in heavy ion collisions

Strangeness in nuclear physics

On the initial approximation of charged particle tracks in detectors with linear sensing elements

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