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相关论文: Odderon induced Pion-Photoproduction at e+e- Colli…

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We study photoproduction of jets and single-inclusive hadrons in a polarized ep collider mode of HERA at sqrt(s)=300 GeV, examining the sensitivity of the cross sections and their asymmetries to the proton's polarized gluon distribution and…

高能物理 - 唯象学 · 物理学 2007-05-23 W. Vogelsang

Evaluating the H(x, s; pp) scaling function of elastic proton-proton (pp) collisions from recent TOTEM data at sqrt(s) = 8 TeV and comparing it with the same function of elastic proton-antiproton (pp-) data of the D0 collaboration at…

高能物理 - 唯象学 · 物理学 2024-06-27 T. Csörgő , T. Novák , R. Pasechnik , A. Ster , I. Szanyi

Elastic and proton-dissociative photoproduction of $\rho^0$, $\phi$ and $J/\psi$ vector mesons ($\gamma p\to Vp$, $\gamma p\to VN$, respectively) have been measured in e^+p interactions at HERA up to -t=3 GeV$^2$, where t is the…

高能物理 - 实验 · 物理学 2012-08-27 ZEUS Collaboration

Theory and phenomenology of the eta_c photo- and electroproduction is developed from the point of view of probing the odderon singularity in QCD which corresponds to the three gluon exchange mechanism. This mechanism leads to the…

高能物理 - 唯象学 · 物理学 2009-10-30 J. Czyzewski , J. Kwiecinski , L. Motyka , M. Sadzikowski

The proton-proton and proton-antiproton inelasticity profiles in the impact parameter display very interesting and sensitive features which cannot be deduced solely from the current large body of high-energy scattering data. In particular,…

高能物理 - 唯象学 · 物理学 2018-10-24 Wojciech Broniowski , László Jenkovszky , Enrique Ruiz Arriola , István Szanyi

Using the QCD color dipole picture to study exclusive vector meson and inclusive jet/open meson photoproduction, we calculate the ratio of elastic meson production to inclusive hadron production cross sections for ultraperipheral heavy ion…

高能物理 - 唯象学 · 物理学 2026-05-15 Joao Vitor C. Lovato , Edgar Huayra , Magno V. T. Machado

Production of ultra-high-energy (UHE) particles in astrophysics should not be different from the hadron production at the contemporary proton colliders. LHC experiments are providing us with the proton spectra at very high energy (VHE) that…

高能物理 - 唯象学 · 物理学 2023-12-06 O. I. Piskounova

We have observed the reactions p+pbar --> p+X+pbar, with X being a centrally produced J/psi, psi(2S) or chi_c0, and gamma+gamma --> mu+mu-, in proton- antiproton collisions at sqrt{s} = 1.96 TeV using the Run II Collider Detector at…

高能物理 - 实验 · 物理学 2009-07-09 CDF Collaboration , T. Aaltonen

Differential cross sections of the elastic pion-proton scattering are investigated at very small momentum transfer in a holographic QCD model, considering both the strong and Coulomb interaction in the Regge regime. The strong interaction…

高能物理 - 唯象学 · 物理学 2024-03-26 Yu-Peng Zhang , Xun Chen , Xiao-Hua Li , Akira Watanabe

We discuss central-exclusive production (CEP) of photons via different fusion processes in the reaction $pp \to pp \gamma$ at high energies, available at RHIC and LHC, within the tensor-pomeron model. We consider two types of processes, the…

高能物理 - 唯象学 · 物理学 2023-04-26 Piotr Lebiedowicz , Otto Nachtmann , Antoni Szczurek

A novel model-independent L\'evy imaging method is employed for reconstruction of the elastic $pp$ and $p\bar p$ scattering amplitudes at low and high energies. The four-momentum transfer $t$ dependent elastic slope $B(t)$, the nuclear…

高能物理 - 唯象学 · 物理学 2019-10-08 T. Csörgő , R. Pasechnik , A. Ster

An earlier developed model for vector meson photoproduction, based on a dipole Pomeron exchange, is extended to electroproduction. Universality of the non linear Pomeron trajectory is tested by fitting the model to ZEUS and H1 data as well…

高能物理 - 唯象学 · 物理学 2011-03-23 R. Fiore , L. L. Jenkovszky , F. Paccanoni , A. Prokudin

The analysis on the hadron-hadron scattering at high energies in the framework of holographic QCD is presented. Combining the Pomeron exchange kernel and the hadron-Pomeron couplings which are obtained from the bottom-up AdS/QCD models, we…

高能物理 - 唯象学 · 物理学 2020-01-08 Akira Watanabe

We consider the contribution of the Odderon to diffractive $pp$ and $p\bar p$ elastic scattering at large center of mass energy. We identify the Odderon and Pomeron with the Reggeized $1^{\pm-}$ and $2^{++}$ glueballs in the bulk,…

高能物理 - 唯象学 · 物理学 2024-02-29 Florian Hechenberger , Kiminad A. Mamo , Ismail Zahed

Different models for the odderon-proton coupling are considered and their effects on the differential cross section in the dip region in elastic p p and p pbar scattering are investigated. An allowed range for the size of a possible diquark…

高能物理 - 唯象学 · 物理学 2009-11-07 V. Schatz

Hadron production in single and central diffraction dissociation is studied in a model which includes soft hadron interaction as controlled by a supercritical pomeron parametrization and hard diffraction. Within this model, particle…

高能物理 - 唯象学 · 物理学 2007-05-23 R. Engel , J. Ranft

We study the single-inclusive production of prompt photons in electron proton collisions, $ep \to \gamma X $, for kinematics relevant at the Electron-Ion Collider (EIC). We perform a perturbative calculation of the differential cross…

高能物理 - 唯象学 · 物理学 2024-07-31 Daniel Rein , Marc Schlegel , Werner Vogelsang

We present a model which describes proton scattering data from ISR to Tevatron energies, and which can be applied to collimation n high energy accelerators, such as the LHC and FCC. Collimators remove beam halo particles, so that they do…

高能物理 - 唯象学 · 物理学 2016-10-12 R. B. Appleby , R. J. Barlow , J. G Molson , M. Serluca , A. Toader

We present a study of the central exclusive $\pi^{+} \pi^{-}$ production via the photoproduction mechanism in nucleon-nucleon collisions. The photon-pomeron/reggeon and pomeron/reggeon-photon exchanges both for the $\rho^{0}$ resonance…

高能物理 - 唯象学 · 物理学 2015-05-20 Piotr Lebiedowicz , Otto Nachtmann , Antoni Szczurek

Using a model calculation of dihadron fragmentation functions, we fit the spin asymmetry recently extracted by HERMES for the semi-inclusive pion pair production in deep-inelastic scattering on a transversely polarized proton target. By…

高能物理 - 唯象学 · 物理学 2009-03-12 Alessandro Bacchetta , Federico A. Ceccopieri , Asmita Mukherjee , Marco Radici