Recent progress in some exclusive and semi-exclusive processes in proton-proton collisions
نویسندگان
چکیده
منابع مشابه
Exclusive W + + γ production in proton - antiproton collisions II : results
We present results for total cross sections, single and double differential distributions and correlations between pairs of outgoing particles in the reactions p + ¯ p → W + + γ and p + ¯ p → W + + γ + jet at √ S = 1.8 TeV. Order α S QCD corrections and leading logarithm photon bremsstrahlung contributions are included in the MS mass factorization scheme for three experimental scenarios: 1) 2-b...
متن کاملExclusive Diffractive Final States in Electron-proton Collisions
The diffractive scattering is a process where the colliding particles scatter at very small angles and without any color flux in the final state. This involves a propagator carrying the vacuum quantum numbers, called Pomeron and described, in the soft regime, within the Regge theory. The discovery of a big amount of diffractive events in DIS regime provided a hard scale which can be varied over...
متن کاملDiffraction, Exclusive Processes, and Proton Structure in Three Dimensions *
I briefly review how a three-dimensional picture of parton dynamics is rendered in the impact parameter representation, applied to generalized parton distributions and to the dipole picture of high-energy scattering. 1 The impact parameter representation Processes like deeply virtual Compton scattering, elastic meson production, and hard diffraction tell us about the spatial distribution of qua...
متن کاملO ct 2 00 3 Exclusive φ production in proton - proton collisions in the resonance model
Exclusive φ production in proton-proton collisions in the resonance model. Abstract The exclusive φ meson production in proton-proton reactions is calculated within the resonance model. The considered model was already successfully applied to the description of π, η, ρ, ω, ππ production in proton-proton collisions. The only new parameter entering into the model is the ω − φ mixing angle θ mix w...
متن کاملExclusive φ production in proton-proton collisions in the resonance model
The production of φ mesons is strongly suppressed compared to that of ω mesons. This fact is known under the name “OZI rule”. According to the OZI rule φ mesons can only be produced due to a small admixture of non-strange light quarks in their wave function. The corresponding mixing angle θmix is equal to θmix ≈ 3.7. A naive estimate based on the OZI expectation underestimates the measured rati...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: EPJ Web of Conferences
سال: 2016
ISSN: 2100-014X
DOI: 10.1051/epjconf/201612002007