Strangeness production in the reaction pp→K+Λp in the threshold region

Bilger, R.; Böhm, A.; Brand, H.; Brand, S.; Brinkmann, K.-Th.; Clement, H.; Dellert, M.; Dennert, H.; Eyrich, W.; Filges, D.; Freiesleben, H.; Fritsch, M.; Geyer, R.; Hassan, A.M.; Hauffe, J.; Herrmann, P.; Hübner, B.; Jahn, P.; Kilian, K.; Kirsch, Matthias; Koch, H.; Kress, J. D.; Krug, J.; Kuhlmann, E.; Lange, J. S.; Metzger, A. E.; Michel, P.; Möller, K.; Moosburger, M.; Morsch, H. P.; Nake, C.; Nann, H.; Naumann, B.; Naumann, L.; Ringe, P.; Roderburg, E.; Rogge, M.; Schamlott, A.; Schönmeier, P.; Schülke, Anett; Sperl, R; Steinke, M.; Stinzing, F.; Turek, P.; Wagner, G. J.; Wirth, S.; Zielinski, U.

doi:10.1016/s0370-2693(97)01573-6

Cited by 83 publications

(56 citation statements)

References 21 publications

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“…A similar expectation has been also confirmed by experimental data on associative strange particle production in N N −collisions, in the near threshold region [25][26][27][28].…”

supporting

confidence: 80%

The reactionΔ+N→N+N+φin ion-ion collisions

Rekalo

Tomasi–Gustafsson

2003

Phys. Rev. C

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We study the threshold φ-meson production in the process ∆ + N → N + N + φ, which appears as a possible important mechanism in high energy nuclei-nuclei collisions. The isotopic invariance of the strong interaction and the selection rules due to P-parity and total angular momentum result in a general and model independent parametrization of the spin structure of the matrix element in terms of three partial amplitudes. In the framework of one-pion exchange model these amplitudes can be derived in terms of the two threshold partial amplitudes for the process π + N → N + φ. We predict the ratio of cross sections for φ−meson production in pp-and ∆N -collisions and the polarization properties of the φ-meson, in ∆ + N → N + N + φ, as a function of a single parameter, which characterizes the relative role of transversal and longitudinal φ-meson polarizations in the process π + N → N + φ.

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“…A similar expectation has been also confirmed by experimental data on associative strange particle production in N N −collisions, in the near threshold region [25][26][27][28].…”

supporting

confidence: 80%

The reactionΔ+N→N+N+φin ion-ion collisions

Rekalo

Tomasi–Gustafsson

2003

Phys. Rev. C

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“…Experimental information on the Λp interaction has been obtained from Λp scattering experiments [1,2], the binding energies of hypernuclei [3,4], and studies of the Λp final state interaction (FSI). The Λp FSI was observed in strangeness transfer reactions [5] and in reactions with associated strangeness production π + + d → K + + (Λp) and p + p → K + + (Λp) [8,9,10,11,12,13,14,15]. The first high resolution study of the reaction p + p → K + + (Λp) was performed at Saclay [11] with proton kinetic energies of 2.3 and 2.7 GeV and missing mass resolutions between 2 and 5 MeV depending on the scattering angle.…”

Section: Introductionmentioning

confidence: 99%

High resolution study of the Λp final state interaction in the reaction p+p→K++(Λp)

Budzanowski

Chatterjee²,

Clement

et al. 2010

Physics Letters B

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The reaction pp → K + + (Λp) was measured at T p = 1.953 GeV and Θ = 0 • with a high missing mass resolution in order to study the Λp final state interaction. The large final state enhancement near the Λp threshold can be described using the standard Jost-function approach. The singlet and triplet scattering lengths and effective ranges are deduced by fitting simultaneously the Λp invariant mass spectrum and the total cross section data of the free Λp scattering.

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“…In contrast to nucleon-nucleon (NN) interactions, where the wealth of experimental data has allowed for the construction of high-precision potentials, the hyperon-nucleon (YN) interactions are only very-approximately known. Experimental information about the YN interaction comes mainly from the study of hypernuclei [1,2], the analysis of associated Λ-kaon and Σ-kaon production in NN collisions near threshold [3,4,5,6,7,8], and hadronic atoms [9]. There are a total of 35 cross-sections measurements [10] of the processes Λp → Λp, Σ − p → Λn, Σ + p → Σ + p, Σ − p → Σ − p and Σ − p → Σ 0 n, and unsurprisingly, the extracted scattering parameters are highly model dependent.…”

Section: A Introductionmentioning

confidence: 99%

Hyperon–nucleon scattering from fully-dynamical lattice QCD

et al. 2007

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We present results of the first fully-dynamical lattice QCD determination of hyperon-nucleon scattering. One s-wave phase shift was determined for nΛ scattering in both spin-channels at pion masses of 350, 490, and 590 MeV, and for nΣ − scattering in both spin channels at pion masses of 490, and 590 MeV. The calculations were performed with domain-wall valence quarks on dynamical, staggered gauge configurations with a lattice spacing of b ∼ 0.125 fm.

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Strangeness production in the reaction pp→K+Λp in the threshold region

Cited by 83 publications

References 21 publications

The reactionΔ+N→N+N+φin ion-ion collisions

The reactionΔ+N→N+N+φin ion-ion collisions

High resolution study of the Λp final state interaction in the reaction p+p→K++(Λp)

Hyperon–nucleon scattering from fully-dynamical lattice QCD

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