Studying High Energy Final State Interactions by
                    N/D
                    Method

We propose a model for the antihyperon polarization in high-energy proton-nucleus inclusive reactions, based on the final-state interactions between the antihyperons and other produced particles (predominantly pions). To formulate this idea, we use the previously obtained low-energy pion-(anti-)hyperon interaction using effective chiral Lagrangians, and a hydrodynamic parametrization of the background matter, which expands and decouples at a certain freezeout temperature.1.

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Coulomb Final State Interaction in Heavy Ion Collisions for Lévy Sources

Universe ◽

10.3390/universe5060133 ◽

2019 ◽

Vol 5 (6) ◽

pp. 133 ◽

Cited By ~ 2

Author(s):

Máté Csanád ◽

Sándor Lökös ◽

Márton Nagy

Keyword(s):

Coulomb Interaction ◽

Heavy Ion Collisions ◽

Particle Production ◽

Final State Interaction ◽

Heavy Ion ◽

High Energy ◽

State Interaction ◽

Final State ◽

Ion Collisions ◽

Final State Interactions

Investigation of momentum space correlations of particles produced in high energy reactions requires taking final state interactions into account, a crucial point of any such analysis. Coulomb interaction between charged particles is the most important such effect. In small systems like those created in e + e - - or p + p collisions, the so-called Gamow factor (valid for a point-like particle source) gives an acceptable description of the Coulomb interaction. However, in larger systems such as central or mid-central heavy ion collisions, more involved approaches are needed. In this paper we investigate the Coulomb final state interaction for Lévy-type source functions that were recently shown to be of much interest for a refined description of the space-time picture of particle production in heavy-ion collisions.

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HADRON ATTENUATION AT HERMES BY (PRE)HADRONIC FSI

International Journal of Modern Physics A ◽

10.1142/s0217751x05021944 ◽

2005 ◽

Vol 20 (02n03) ◽

pp. 615-617

Author(s):

K. GALLMEISTER ◽

W. CASSING ◽

T. FALTER ◽

U. MOSEL

Keyword(s):

Transport Model ◽

High Energy ◽

Quantum Mechanical ◽

Hadronic Final State ◽

Initial State ◽

Final State ◽

Quantum Mechanical Treatment ◽

Final State Interactions ◽

Coupled Channel ◽

Hadron Formation

We investigate hadron formation in high energy electroproduction off complex nuclei in the framework of a BUU transport model. Our approach combines a quantum mechanical treatment of the photon's initial state interactions with a semi-classical coupled channel simulation of the (pre)hadronic final-state interactions (FSI). This allows us to study the hadron attenuation observed at HERMES and to get information on the space-time picture of hadron formation separately for π±, π0, K±, p and [Formula: see text].

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