"Exclusive production of rho^0 rho^0 and mu^+ mu^- pairs in ultrarelativistic heavy ion collisions"
Mariola Kłusek-Gawenda, IFJ
(id #178)
Seminar: NoPoster: Yes
Invited talk: No
Heavy ion is a source for high-energy gamma gamma collisions.
I will present realistic cross section for exclusive
electromagnetic production of
two neutral rho mesons and two charge mu^+ mu^- leptons
in coherent photon-photon processes in ultrarelativistic
heavy-ion collisions.
I will consider (AA \to AA rho^0 rho^0) and (AA \to AA mu^+ mu^-)
reactions for Au-Au and Pb-Pb collisions.
In addidion, to ilustrate the sensitivity of calculations
on detail of the form factor, I will compare results with
realistic charge density with results for monopole form factor.
I will show that inclusion of precise charge densities
in nuclei is essential in realistic evaluating
the nuclear gamma-gamma cross sections.
The cross section is calculated by means of two methods:
in the equivalent photon approximation and
in momentum space.
In the first method, we include vector-dominance-model (VDM)-Regge contribution which
becomes important at large gamma-gamma energy.
We will present the predictions for collaboration:
PHENIX, STAR (at RHIC) and CMS, ALICE (at LHC).
I will present realistic cross section for exclusive
electromagnetic production of
two neutral rho mesons and two charge mu^+ mu^- leptons
in coherent photon-photon processes in ultrarelativistic
heavy-ion collisions.
I will consider (AA \to AA rho^0 rho^0) and (AA \to AA mu^+ mu^-)
reactions for Au-Au and Pb-Pb collisions.
In addidion, to ilustrate the sensitivity of calculations
on detail of the form factor, I will compare results with
realistic charge density with results for monopole form factor.
I will show that inclusion of precise charge densities
in nuclei is essential in realistic evaluating
the nuclear gamma-gamma cross sections.
The cross section is calculated by means of two methods:
in the equivalent photon approximation and
in momentum space.
In the first method, we include vector-dominance-model (VDM)-Regge contribution which
becomes important at large gamma-gamma energy.
We will present the predictions for collaboration:
PHENIX, STAR (at RHIC) and CMS, ALICE (at LHC).
