EPJ Web of Conferences
Volume 95, 20153rd International Conference on New Frontiers in Physics
|Number of page(s)||12|
|Published online||29 May 2015|
Charmonium propagation through a dense medium
Departamento de Física, Universidad Técnica Federico Santa María; and Centro Científico-Tecnológico de Valparaíso ; Avda. España 1680, Valparaíso, Chile
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Published online: 29 May 2015
Attenuation of a colourless c̄c dipole propagating with a large momentum through a hot medium originates from two sources, Debye screening (melting), and inelastic collisions with surrounding scattering centres (absorption). The former never terminates completely production of a bound charmonium in heavy ion collisions, even at very high temperatures. The latter, is controlled my the magnitude of the dipole cross section, related to the transport coefficient, which is the rate of transverse momentum broadening in the medium. A novel procedure of Lorentz boosting of the Schrödinger equation is developed, which allows to calculate the charmonium survival probability employing the path-integral technique, incorporating both melting and absorption. A novel mechanism of charmonium regeneration in a dense medium is proposed.
© Owned by the authors, published by EDP Sciences, 2015
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