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K(892)*resonance production in Au+Au andp+pcollisions atAdams1, Aggarwal2, Ahammed3 et al. 2005Phys. Rev. C

“…system energy. In addition, the statistical model prediction of K * /K of 0.33 ± 0.01 [7,17,56] is considerably larger (in a 2-σ effect) than than our measurement of 0.23 ± 0.05 in 0-10% Au+Au. The K * 0 regeneration depends on σ Kπ whereas the rescattering of the daughter particles depends on σ ππ and σ πp , which are considerably larger (factor ∼5) than σ Kπ [22,23].…”

“…Distortions of the line shape of ρ 0 have also been observed at RHIC in p + p and peripheral Au+Au collisions [12]. Dynamical interactions with the surrounding matter [7,8,13], interference between various scattering channels [14], phase-space distortions [7,8,13,[15][16][17][18][19][20], and Bose-Einstein correlations [7,8,15,[18][19][20] are possible explanations for the apparent modification of resonance properties.…”

“…In a hot and dense system, resonances are in close proximity with other strongly interacting hadrons. The in-medium effect related to the high density and/or high temperature of the medium can modify various resonance properties, such as masses, widths, and even the mass line shapes [6][7][8]. Thus, measurements of various resonance properties can provide detailed information about the interaction dynamics in relativistic heavy-ion collisions [9,10].…”

Hadronic resonance production ind+Aucollisions atsNN=200Abelev1, Aggarwal2, Ahammed3 et al. 2008Phys. Rev. C635210View full textAdd to dashboardCite

“…The in-medium effects related to the high density and/or high temperature of the medium can modify the properties of short-lived resonances, such as their masses, widths, and even their spectral shapes [14][15][16]. Thus, resonances provide a unique tool for studying various properties of interaction dynamics in relativistic heavy-ion collisions [17,18].…”

Mass of the ρ0 meson in ultra-relativistic heavy-ion collisions

“…The overall change in the mass of the peak of the invariant π + π − distribution should contain also the effects of phase-space distortions due to thermal motion of the decay products as well as the effect due to the change in the intrinsic ρ width [4,18].…”