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Forskare har upptäckt en mytisk partikel av Odderon - Geek
Pomerania is the area along the Bay of Pomerania of the Baltic Sea between the rivers Recknitz and Trebel in the west and Vistula in the east. It formerly reached perhaps as far south as the Noteć river, but since the 13th century its southern boundary has been placed further north. What is the definition of POMERON? What is the meaning of POMERON?
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We use Born-level and eikonalized amplitudes. In the Born-level case we estimate the contribution of the double Pomeron exchange, while in the latter case we investigate the role of the eikonalization in both the one- and two-channel models. Pomeron physics and QCD [Elektronisk resurs] / Sandy Donnachie [et al.].
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15 Jan 2019 Combining the Pomeron exchange kernel and the hadron–Pomeron couplings which are obtained from the bottom-up AdS/QCD models, we One Pomeron isthe well-known \hard" BFKL leading singularity, while the new one appears from a shift of the higherconformal spin BFKL singularities from eps large mass. The dashed line shows the cut Pomeron, which describes the production of hadrons (see Fig. 5-a which illustrates this point). 10 Oct 2020 In the QCD the small x evolution of the interacting pomerons and odderons is studied with all conformal spins l taken into account.
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First we take into account the coupling of the pomeron and odderon on the minimal level, introducing all nonlinear terms different from zero but restricting the partial waves for both ϕ and ψ to l = 0 (that is taking the pomeron at L = 0 and odderon at L = 1) The resulting Pomeron ϕ 0 coupled to odderon ψ 0 and the corresponding gluon density turn out to be practically the same as without The use of pomeron/odderon trajectories in central exclusive production is outlined in Sec. 3.
Odderon would be Pomeron like state with an odd charge parity C=-1 instead of C=1.
The discrete pomeron spectrum arises from accounting for the running of the coupling with gluon transverse momentum and the imposition of such phases (see ). It was furthermore shown that the quality of the fit is sensitive to the exact \(\omega \) -plane positions of third and higher Regge poles which are influenced (according to the BFKL equation) by hypothetical heavy particles and their
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Hard. The Pomeron in QCD. In physics, the pomeron is a Regge trajectory — a family of particles with increasing spin — postulated in 1961 to explain the slowly rising cross section of In the high-energy limit, the properties of the ladder have been derived for multi- Regge kinematics and the resulting exchange is called the (hard) BFKL pomeron [ chuk singularity (or, briefly, the pomeron) appears as a bound state of conformal invariance of the pomeron Green's function in lowing Bethe-Salpeter in LLA:. 15 Jan 2019 Combining the Pomeron exchange kernel and the hadron–Pomeron couplings which are obtained from the bottom-up AdS/QCD models, we One Pomeron isthe well-known \hard" BFKL leading singularity, while the new one appears from a shift of the higherconformal spin BFKL singularities from eps large mass.
CJ (2017) 77 :600 A A B j1 j2 B γA γB A A B X j1 j2 PA B γB A A B X j1 j2 PB B γA A A B X j1 j2 PB B Y PA (a) (b) (c) (d)Fig. 1 Dijet production by a photon–photon, b pomeron–photon, c photon–pomeron and d pomeron–pomeron interactions in hadronic collisions
2021-03-16 · At multi-TeV energies, on the other hand, proton interactions are expected to be mediated purely by gluons. In particular, elastic scattering at low-momentum transfer and high energies has long been explained by the exchange of a pomeron – a “colour-neutral” virtual glueball made up of an even number of gluons.
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Rev. D 12 · Model of the bare Pomeron. F. E. Low. Phys. Rev. · Phys. Rev. D 12, 163 – Published 1 July 1975.
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Häftad, 2005. Skickas inom 7-10 vardagar. Köp Pomeron Physics and QCD av Sandy Donnachie på Bokus.com. Pomeron Physics and QCD: 19: Dosch, Gunter (Ruprecht-Karls-Universitat Heidelberg, Germany), Nachtmann, Otto (Ruprecht-Karls-Universitat Heidelberg, title = "Odderon-Pomeron interference",. abstract = "We show that the asymmetry in the fractional energy of charm versus anticharm jets produced in high energy In such double Pomeron exchange processes, we propose to measure dijets and photon-jet final states, and we show that it has the potential to pin down the Soft Pomeron in holographic QCD. A Ballon-Bayona, RC Quevedo, MS Unity of pomerons from gauge/string duality.
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A simple analytic Regge trajectory is presented in Sec. 4. Single and double pole Regge fits to elastic scattering data are described in Sec. 5 and Sec. 6. Pomeron-pomeron and odderon-odderon total cross sections are derived in Sec. 7. Masses and Pomeron which includes the eikonal corrections (or survival probability) and triple-Pomeron and higher order corrections in a Reggeon calculus. We will focus primarily on the \bare Pomeron" sector and will discuss only brie y higher order e ect due to eikonalization.
05/10/2018.