Lambda-to-Kaon Ratio Enhancement in Heavy Ion Collisions at Several TeV
نویسندگان
چکیده
منابع مشابه
Chiral kaon dynamics in heavy ion collisions
The influence of the chiral mean field on the collective motion of kaons in relativistic heavy ion reactions at SIS energies is investigated. We consider three types of collective motion, i.e. the transverse flow, the out-of-plane flow (squeeze-out) and the radial flow. The kaon dynamics is thereby described with a relativistic mean field as it originates form chiral lagrangiens. For the K meso...
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The influence of the chiral mean field on the K transverse flow in heavy ion collisions at SIS energy is investigated within covariant kaon dynamics. For the kaon mesons inside the nuclear medium a quasi-particle picture including scalar and vector fields is adopted and compared to the standard treatment with a static potential. It is confirmed that a Lorentz force from spatial component of the...
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Within the framework of a relativistic transport model (ART) for heavy-ion collisions at AGS energies, we examine the effects of kaon dispersion relation on the transverse flow of kaons and their transverse momentum and azimuthal angle distributions. We find that the transverse flow is the most sensitive observable for studying the kaon dispersion relation in dense medium.
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Above a critical matter density the propagating modes of the neutral kaon system are essentially eigenstates of strangeness, but below it they are almost complete eigenstates of CP. We estimate the real and imaginary parts of the energies of these modes and their mixing at all densities up to nuclear matter density 2×1014 g/cm. In a heavy ion collision the strong interactions create eigenstates...
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The first measurement of kaon phase space densities are presented as a function of mT , √ snn and the number of participants. The kaon phase space density increases with the number of participants from ee to Pb+Pb collisions. However the ratio of the kaon and pion phase space densities at low PT is independent of number of participants for √ snn = 17GeV. This paper is dedicated to Francis Ricca...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2012
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.109.102301