2013/09/27 by Piotr Lebiedowicz, Roman Pasechnik, Antoni Szczurek · 2 citations
Physics and Astronomy · #Branching fraction #Fusion #High-Energy Particle Collisions Research #Invariant (physics) #Invariant mass #Large Hadron Collider #Mathematical physics #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Scattering cross-section #Technicolor #hep-ex #hep-ph
paper · pdf · doi:10.1016/j.nuclphysb.2014.02.008
20 pages, 12 figures, 1 table
arxiv created 2013/09/27 · openalex publication_date 2014/02/13 · arxiv updated 2015/06/17 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We focus on exclusive production of neutral technipion π˜0 in pp collisions at the LHC, i.e. on pp→ppπ˜0 reaction. The dependence of the cross section on parameters of recently proposed vector-like Technicolor model is studied. Characteristic features of the differential distributions are discussed. For not too large technipion masses the diphoton decay channel has the dominant branching fraction. This is also the main reason for an enhanced production of neutral technipions in γγ-fusion reaction. We discuss potential backgrounds of the QCD and QED origin to the pp→pp(π˜0→γγ) process at large invariant γγ masses. We conclude that compared to inclusive case the signal-to-background ratio in the considered exclusive reaction is very favorable which thereby could serve as a good probe for Technicolor dynamics searches at the LHC.