scholarly journals Exclusive diffractive production ofπ+π−π+π−via the intermediateσσandρρstates in proton-proton collisions within tensor Pomeron approach

2016 ◽  
Vol 94 (3) ◽  
Author(s):  
Piotr Lebiedowicz ◽  
Otto Nachtmann ◽  
Antoni Szczurek
2019 ◽  
Vol 206 ◽  
pp. 06005 ◽  
Author(s):  
Piotr Lebiedowicz ◽  
Otto Nachtmann ◽  
Antoni Szczurek

We review some selected results of the tensor-pomeron and vectorodderon model of soft high-energy proton-proton scattering and central exclusive production of meson and baryon pairs in proton-proton collisions. We discuss the theoretical aspects of this approach and consider the phenomenological implications in a variety of processes at high energies, comparing to existing experimental data. We consider the diffractive dipion and dikaon production including the continuum and the dominant scalar and tensor resonance contributions as well as the photoproduction processes. The theoretical results are compared with existing CDF experimental data and predictions for planned or current LHC experiments, ALICE, ATLAS, CMS, LHCb are presented.


2020 ◽  
Vol 102 (11) ◽  
Author(s):  
Piotr Lebiedowicz ◽  
Josef Leutgeb ◽  
Otto Nachtmann ◽  
Anton Rebhan ◽  
Antoni Szczurek

2019 ◽  
Vol 199 ◽  
pp. 03005
Author(s):  
Piotr Lebiedowicz ◽  
Antoni Szczurek ◽  
Otto Nachtmann

We discuss central exclusive diffractive production of light mesons in the reactions $pp \to pp{\pi ^ + }{\pi ^ - }$ and $pp \to pp{K^ + }{K^ - }$. The calculation is based on a tensor-pomeron approach. We include a purely diffractive dipion continuum, and the scalar f0(980), f0(1500), f0(1710) and tensor f2(1770), ${f^{\prime}_2}(1525)$ resonances decaying into pseudoscalar meson pairs. We include also photoproduction mechanisms for the nonresonant (Drell-Söding) and the ϕ(1020) resonance contributions. The theoretical results are compared with existing CDF experimental data and predictions for being carried out LHC experiments are presented. The distributions in dimeson invariant mass and in a special "glueball filter variable" including the interference effects of resonance and dimeson continuum are presented.


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