BRAHMS Collaboration

Arsene, Ionut Cristian; Bearden, Ian Gardner; Beavis, D.; Bekele, S.; Beşliu, C.; Budick, B.; Bøggild, H.; Chasman, C.; Christensen, Christian Holm; Christiansen, P.; Debbe, R.; Gaardhøje, J. J.; Hagel, K.; Ito, H.; Jipa, Al.; Johnson, E.; Jundt, F.; Jørdre, J. I.; Jørgensen, C. E.; Karabowicz, R.; Kim, E.J.; Larsen, T.M.; Lee, J.H.; Lee, Y.K.; Lindahl, S.; Løvhøiden, G.; Majka, Zuzanna; Murray, M.J.; Natowitz, J.; Nielsen, B.S.; Ouerdane, D.; Płaneta, R.; Rami, F.; Ristea, C.; Ristea, O.; Röhrich, D.; Samset, B. H.; Sanders, S.J.; Scheetz, R.A.; Staszel, P.; Tveter, T.S.; Videbæk, F.; Wada, R.; Yang, Hung-Ju; Yin, Z.; Zgura, I. S.

doi:10.1016/j.nuclphysa.2006.07.006

Cited by 133 publications

(278 citation statements)

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“…In Figs. 18 and 19 we show the calculated rapidity distributions and transverse momentum p T spectra of hadrons (π ± , K ± , p,p, Λ + Σ 0 ,Λ +Σ 0 ) for 5% central Au+Au collisions at √ s = 200 GeV in comparison to the experimental data from the BRAHMS [89,90], PHENIX [91] and STAR [92] collaborations.…”

Section: Top Rhic Energymentioning

confidence: 99%

Parton-hadron-quantum-molecular dynamics: A novel microscopic n -body transport approach for heavy-ion collisions, dynamical cluster formation, and hypernuclei production

et al. 2020

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We present the novel microscopic n-body dynamical transport approach PHQMD (Parton-Hadron-Quantum-Molecular-Dynamics) for the description of particle production and cluster formation in heavy-ion reactions at relativistic energies. The PHQMD extends the established PHSD (Parton-Hadron-String-Dynamics) transport approach by replacing the mean-field by density dependent two body interactions in a similar way as in the Quantum Molecular Dynamics (QMD) models. This allows for the calculation of the time evolution of the n-body Wigner density and therefore for a dynamical description of cluster and hypernuclei formation. The clusters are identified with the MST (Minimum Spanning Tree) or the SACA (Simulated Annealing Cluster Algorithm) algorithm which -by regrouping the nucleons in single nucleons and noninteracting clusters -generates the most bound configuration of nucleons and clusters. Collisions among particles in PHQMD are treated in the same way as in PHSD. The PHQMD approach can be used in different modes for the hadron propagation: the mean-field based PHSD mode and the QMD mode based on different density dependent two-body potentials between the nucleons which correspond to the different equationsof-state (EoS). This allows to study the sensitivity of observables on the different descriptions of the potential interactions among nucleons. Here we present the first PHQMD results for general 'bulk' observables such as rapidity distributions and transverse mass spectra for hadrons (π, K,K, p,p, Λ,Λ) from SIS to RHIC energies, as well as for cluster production, including hypernuclei.

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Section: Top Rhic Energymentioning

confidence: 99%

Parton-hadron-quantum-molecular dynamics: A novel microscopic n -body transport approach for heavy-ion collisions, dynamical cluster formation, and hypernuclei production

et al. 2020

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“…Different tube-tube collisions characterized by r ⊥ will produce different rapidity losses y P (r ⊥ , τ ) and different excitation energies M P (r ⊥ , τ ). Once y P (r ⊥ , τ ) and M P (r ⊥ , τ ) have been obtained, the average rapidity loss is readily computed, which is constrained by the experimental data from the BRAHMS collaboration [21,22]. Furthermore, rapidity loss and excitation energy predict the baryon density and energy density that can be achieved.…”

Section: High Baryon and Energy Densities Achievable At Top Rhicmentioning

confidence: 99%

“…The average rapidity loss is computed to be δy ≈ 2.4. The BRAHMS collaboration [21,22] was the only detector at the RHIC that could measure particle production anywhere near the fragmentation regions. The coverage was limited to |y| ≤ 3.1, so the uncertainty in the rapidity loss estimate was large.…”

Section: A Net-baryon Rapidity Distributionmentioning

confidence: 99%

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Large baryon densities achievable in high-energy heavy-ion collisions outside the central rapidity region

Kapusta²

2019

Phys. Rev. C

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Nuclei are nearly transparent to each other when they collide at high energy, but the collisions do produce high energy density matter in the central rapidity region where most experimental measurements are made. What happens to the receding nuclear fireballs? We calculate the energy loss of the nuclei using the color glass condensate model. We then use a simple space-time picture of the collision to calculate the baryon and energy densities of the receding fireballs. For central collisions of large nuclei at the BNL Relativistic Heavy Ion Collider and the CERN Large Hadron Collider we find baryon densities more than ten times that of normal nuclear matter. These results provide initial conditions for subsequent hydrodynamic evolution and could test the equation of state at very high baryon densities.

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“…To date, non-zero A N in forward π 0 production has been measured by many experiments [2][3][4][5]. Non-zero A N has been observed in only the forward-rapidity region, and it has been interpreted based on the perturbative QCD framework.…”

Section: Introductionmentioning

confidence: 99%

Transverse single spin asymmetry for very forward π⁰ production in polarized proton-proton collisions at √s = 510 GeV

et al. 2019

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Transverse single spin asymmetry, A N , of very forward π 0 production from polarized p + p collisions provides new information toward an understanding of its production mechanism. A N of forward π 0 in the pseudorapidity region of 3 < η < 4 has been described by the partonic structure of the proton in the perturbative QCD framework. However, recent data indicates a potential contribution from not only partonic but also diffractive interactions. In order to provide a new insight on the origin of the A N , we measured the very forward π 0 production in the pseudorapidity region of 6 < η from √ s = 510 GeV polarized p + p collisions at RHIC in 2017. We report our measurement of the very forward π 0 over the transverse momentum range of 0 < p T < 1 GeV/c and the preliminary result.

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BRAHMS Collaboration

Cited by 133 publications

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Parton-hadron-quantum-molecular dynamics: A novel microscopic n -body transport approach for heavy-ion collisions, dynamical cluster formation, and hypernuclei production

Parton-hadron-quantum-molecular dynamics: A novel microscopic n -body transport approach for heavy-ion collisions, dynamical cluster formation, and hypernuclei production

Large baryon densities achievable in high-energy heavy-ion collisions outside the central rapidity region

Transverse single spin asymmetry for very forward π⁰ production in polarized proton-proton collisions at √s = 510 GeV

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BRAHMS Collaboration

Cited by 133 publications

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Parton-hadron-quantum-molecular dynamics: A novel microscopic n -body transport approach for heavy-ion collisions, dynamical cluster formation, and hypernuclei production

Parton-hadron-quantum-molecular dynamics: A novel microscopic n -body transport approach for heavy-ion collisions, dynamical cluster formation, and hypernuclei production

Large baryon densities achievable in high-energy heavy-ion collisions outside the central rapidity region

Transverse single spin asymmetry for very forward π0 production in polarized proton-proton collisions at √s = 510 GeV

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Transverse single spin asymmetry for very forward π⁰ production in polarized proton-proton collisions at √s = 510 GeV