Pomeron


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Pomeron

[′päm·ə‚rän]
(particle physics)
A Regge pole which is located at + 1 in the angular momentum plane when the momentum transfer in the crossed channel equals zero, corresponding to the fact that total cross sections of reactions are observed to approach constants at high energies. Also known as Pomeranchuk pole.
References in periodicals archive ?
Ostapchenko, "Monte Carlo treatment of hadronic interactions in enhanced Pomeron scheme: QGSJET-II model," Physical Review D: Particles, Fields, Gravitation, and Cosmology, vol.
Bloque Pomeron: ocupa 23.000 kilometros cuadrados del territorio venezolano; dicho Bloque fue entregado en el ano 2012 a la empresa canadiense de exploracion de petroleo y gas, CGX ENERGY INC.
Junto con el Bloque Roraima y Pomeron, comprende la segunda area petrolera mas grande del mundo sin explorar.
Para conciliar la teoria de Regge con los experimentos se hace necesario la existencia de una trayectoria de Regge con intercepto [alfa](0) > 1, a esta trayectoria se le llama Pomeron, la cual hasta el momento no se puede asociar con ninguna particula y es tema de estudio tanto a nivel teorico como experimental.
Ross, Quantum Chromodynamics and the Pomeron (Cambridge University Press, Cambridge, 1997).
Because of the rescattering dynamics, the DDIS amplitude acquires a complex phase from Pomeron and Regge exchange; thus final-state rescattering corrections lead to nontrivial "dynamical" contributions to the measured PDFs; that is, they are a consequence of the scattering process itself [80].
Two types of measurements will be planned to examine with high precision using the AFP [4749]: first, exploratory physics (anomalous couplings between [gamma] and W or Z bosons, exclusive production, etc.) and second, standard QCD physics (double Pomeron exchange, exclusive production in the jet channel, single diffraction, [gamma][gamma] physics, etc.).
The leading order background process comes from QCDinduced reactions (pomeron exchange).
In (24), [[sigma].sub.p] is the Born term given by Pomeron exchange with intercept [[alpha].sub.p](0) = l + [DELTA].
Application to the determination of the gluon content of the Pomeron," Nuclear Instruments and Methods in Physics Research Section A, vol.
A pomeron emitted from one of the incoming proton beams can collide with the other proton's quarks and the same final state particles can take place.
Werner, "Strings, pomerons and the VENUS model of hadronic interactions at ultrarelativistic energies," Physics Reports, vol.