Exclusive reactions with light mesons: From low to high energies
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Date
2014
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Institute of Nuclear Physics Polish Academy of Sciences
Abstract
In this Thesis, a theoretical analysis of exclusive production of mesons for various reactions in nucleon-nucleon collisions is presented. Detailed studies of the central exclusive production of the resonance states and the light dimeson pairs (π+π−, K+K−) within the Regge-based framework aswell as the exclusive production of forward neutral particles has been performed in a broad range of collision energy. Different aspects of production mechanism for the considered processes have been discussed, such as the model of soft pomeron, the absorption corrections, the off-shell effects of exchanged mesons. The cross section and many differential distributions were calculated and compared with existing experimental data wherever possible. Predictions for experiments at PANDA, RHIC, Tevatron and LHC energies have been presented. In addition, diffractive and electromagnetic production of the diboson pairs (γγ, W+W−, ZZ) at high energies has been considered in the framework of kt-factorization approach with the formalism of unintegrated gluon distribution functions. The production of technipions in dominant photonphoton channel as complementary possibility of search of particles beyond the Standard Modelat the LHC has been studied.