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Hong, B.; Herrmann, N.; Ritman, J.; Best, D.; Gobbi, A.; Hildenbrand, K. D.; Kirejczyk, M.; Leifels, Y.; Pinkenburg, C.; Reisdorf, W.; Schüll, D.; Sodan, U.; Wang, G. S.; Wienold, T.; Alard, J. P.; Amouroux, V.; Bastid, N.; Belyaev, I.; Berek, G.; Biegansky, J.; Buţă, A.; Coffin, J. P.; Crochet, P.; Schauenburg, B. de; Donà, R.; Dupieux, P.; Eskef, M.; Fintz, P.; Fodor, Z.; Fraysse, L.; Genoux‐Lubain, A.; Goebels, G.; Guillaume, G.; Häfele, E.; Jundt, F.; Kecskeméti, J.; Korolija, M.; Kötte, R.; Kuhn, C.; Lebedev, A.; Legrand, I.; Maazouzi, C.; Manko, V.; Mösner, J.; Mohren, S.; Neubert, W.; Pelte, D.; Petrovici, M.; Pras, P.; Rami, F.; Roy, C.; Seres, Z.; Sikora, B.; Simion, V.; Siwek‐Wilczyńska, K.; Somov, A.; Tizniti, L.; Trzaska, M.; Vasiliev, M. A.; Wagner, P.; Wohlfarth, D.; Zhilin, A.

doi:10.1103/physrevc.57.244

Cited by 73 publications

(42 citation statements)

References 34 publications

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“…Baryonic matter created in nucleus-nucleus collisions in SIS18 energy regime is compressed to about 2-3 times the normal nuclear matter density (ρ 0 ) and heated up to temperatures around 100 MeV [1] [2]. Under these conditions several non-trivial in-medium effects such as partial restoration of chiral symmetry, modification of meson-baryon coupling and nucleon potentials are predicted.…”

Section: Introductionmentioning

confidence: 99%

Modification of hadron properties in compressed nuclear matter: Recent results from the FOPI collaboration

Zinyuk¹

2014

Proceedings of 52 International Winter Meeting on Nuclear Physics — PoS(Bormio2014)

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Strange particles produced sub-or close-to-production threshold allow to probe the properties of hot and dense baryonic matter. Hadron properties like cross sections, width and effective mass are believed to alter under these conditions and influence the production and propagation of hadrons in nuclear medium. In this review we report on the flow observables for p, K + -and K − mesons in 58 Ni+ 58 Ni collisions and on the phase space population of K + -and K − mesons in pion induced reactions.

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Section: Introductionmentioning

confidence: 99%

Modification of hadron properties in compressed nuclear matter: Recent results from the FOPI collaboration

Zinyuk¹

2014

Proceedings of 52 International Winter Meeting on Nuclear Physics — PoS(Bormio2014)

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“…For fixed collision geometry (system size and centrality) at lower energy (SIS, AGS, and SPS) it was observed that δy is proportional to the projectile rapidity. For central collisions between heavy nuclei (Pb, Au), δy ∼ 0.58 · y p [5,6,7].Bjorken assumed that sufficiently high energy collisions are "transparent", thus the mid-rapidity region is approximately net-baryon free [8]. The energy density early in the collision, ǫ, can then be related in a simple way to the final particle production.…”

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confidence: 99%

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confidence: 99%

Nuclear Stopping inAu+AuCollisions atsNN=2

Bearden¹,

Beavis²,

Beşliu³

et al. 2004

Phys. Rev. Lett.

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204

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Transverse momentum spectra and rapidity densities, dN/dy, of protons, anti-protons, and netprotons (p −p) from central (0-5%) Au+Au collisions at √ sNN = 200 GeV were measured with the BRAHMS experiment within the rapidity range 0 ≤ y ≤ 3. The proton and anti-proton dN/dy decrease from mid-rapidity to y = 3. The net-proton yield is roughly constant for y < 1 at dN/dy ∼ 7, and increases to dN/dy ∼ 12 at y ∼ 3. The data show that collisions at this energy exhibit a high degree of transparency and that the linear scaling of rapidity loss with rapidity observed at lower energies is broken. The energy loss per participant nucleon is estimated to be 73 ± 6 GeV. PACS numbers: 25.75 Dw.The energy loss of colliding nuclei is a fundamental quantity determining the energy available for particle production (excitation) in heavy ion collisions. This deposited energy is essential for the possible formation of a deconfined quark-gluon phase of matter (QGP). Because baryon number is conserved, and rapidity distributions are only slightly affected by rescattering in late stages of the collision, the measured net-baryon (B −B) distribution retains information about the energy loss and allows the degree of nuclear stopping to be determined. Such measurements can also distinguish between different proposed phenomenological mechanisms of initial coherent multiple interactions and baryon transport [1,2,3] .The average rapidity loss, δy = y p − y [23], is used to quantify stopping in heavy ion collisions [4,5]. Here, y p is rapidity of the incoming projectile and y is the mean net-baryon rapidity after the collision :where N part is the number of participating nucleons in the collision. The two extremes correspond to full stopping, where initial baryons lose all kinetic energy ( δy = y p ) and full transparency, where they lose no kinetic energy ( δy = 0). For fixed collision geometry (system size and centrality) at lower energy (SIS, AGS, and SPS) it was observed that δy is proportional to the projectile rapidity. For central collisions between heavy nuclei (Pb, Au), δy ∼ 0.58 · y p [5,6,7].Bjorken assumed that sufficiently high energy collisions are "transparent", thus the mid-rapidity region is approximately net-baryon free [8]. The energy density early in the collision, ǫ, can then be related in a simple way to the final particle production. At RHIC it has been estimated that ǫ ∼ 5 GeV/fm 3 , well above the lattice QCD prediction (ǫ crit ∼ 1GeV/fm 3 [9]) for the hadron gas to QGP phase transition.In this letter, results on proton and anti-proton production, and baryon stopping in Au + Au collisions at √ s N N = 200 GeV are presented. The data

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“…It also predicts characteristic changes of the final-state phase-space distributions of kaons and antikaons [10]. [12,13]. Here, we…”

mentioning

confidence: 99%

Direct comparison of phase-space distributions of K- and K+ mesons in heavy-ion collisions at SIS energies -- evidence for in-medium modifications of kaons?

Wiśniewski¹,

Crochet²,

Herrmann³

et al. 2000

Eur Phys J A

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The ratio of K − to K + meson yields has been measured in the systems show, for the first time in this energy regime, the ratio of K − to K + meson yields in the backward hemisphere. We extract the ratio across a relatively wide region of phase space, which provides high sensitivity to the dynamics of the propagation of kaons through the medium. We observe that the phase-space distributions of K − and K + mesons differ and discuss the origin of this effect.An ensemble of events biased to small impact parameters has been selected by requiring high charged-particle multiplicity in the polar-angle range 7• < Θ Lab < 30• on the trigger level. For the Ni+Ni experiment, 4.7·10 6 events were selected, corresponding to the centralmost 11% of the total geometrical cross section. Since no difference in strangeness production was found between the Ru+Ru and Ru+Zr systems [14], the accumulated statistics was combined for a total of 7.7·10 6 events, corresponding to the centralmost 14% of the geometrical cross section.

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Stopping and radial flow in central58Ni+58Nicollisions between
B. Hong¹,
N. Herrmann²,
J. Ritman³
et al.

Cited by 73 publications

References 34 publications

Modification of hadron properties in compressed nuclear matter: Recent results from the FOPI collaboration

Modification of hadron properties in compressed nuclear matter: Recent results from the FOPI collaboration

Nuclear Stopping inAu+AuCollisions atsNN=2

Direct comparison of phase-space distributions of K- and K+ mesons in heavy-ion collisions at SIS energies -- evidence for in-medium modifications of kaons?

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Stopping and radial flow in central58Ni+58Nicollisions betweenB. Hong1, N. Herrmann2, J. Ritman3 et al.

Cited by 73 publications

References 34 publications

Modification of hadron properties in compressed nuclear matter: Recent results from the FOPI collaboration

Modification of hadron properties in compressed nuclear matter: Recent results from the FOPI collaboration

Nuclear Stopping inAu+AuCollisions atsNN=2

Direct comparison of phase-space distributions of K- and K+ mesons in heavy-ion collisions at SIS energies -- evidence for in-medium modifications of kaons?

Contact Info

Product

Resources

About

Stopping and radial flow in central58Ni+58Nicollisions between
B. Hong¹,
N. Herrmann²,
J. Ritman³
et al.