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vector meson production

Exclusive Production of Phi Vector Meson During HERA-II

Exclusive Production of Phi Vector Meson During HERA-II

... To really understand this process, additional cross sections as a function of multiple variables is necessary. The next step in the analysis is the calculation of systematic errors arising from each of the cuts made to ...

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Exclusive vector mesons at high energies: from photon-proton to proton-proton and nucleus-nucleus collisions

Exclusive vector mesons at high energies: from photon-proton to proton-proton and nucleus-nucleus collisions

... heavy vector mesons (es- pecially its energy dependence) is a sensitive probe of the gluon distribution distribution, let us turn to proton-(anti)proton collisions, where in fact very high energy photoproduction ...

7

Searching saturation effects in inclusive and exclusive eA processes

Searching saturation effects in inclusive and exclusive eA processes

... and vector meson production demonstrated that the energy dependence of the differential cross sections are strongly modified with the increasing of the atomic mass number and that coherent cross ...

8

Subthreshold ϕ meson production in nucleus-nucleus collisions

Subthreshold ϕ meson production in nucleus-nucleus collisions

... Nucleus-nucleus collisions offer a unique possibility of studying the properties of particles in hot and dense hadronic environment. At beam energies of about 1-2A GeV, accessible at the SIS 18 synchrotron in GSI, ...

5

Selected HERMES results on semi-inclusive meson production

Selected HERMES results on semi-inclusive meson production

... transverse to the virtual-photon three-momentum in the plane spanned by the three-momenta of the virtual photon and hadron (hadron-production plane), and x the x-Bjorken variable. The experimen- tally extracted ...

6

Photoproduction of vector mesons: from ultraperipheral to semi-central heavy ion collisions

Photoproduction of vector mesons: from ultraperipheral to semi-central heavy ion collisions

... As in previous figures, Fig. 5 shows contributions from double-scattering, the low-energy bump and the high-energy VDM-Regge γγ fusion contributions [6] but now as a function of four-pion in- variant mass. The left panel ...

6

Exclusive meson pair production in proton-proton collisions

Exclusive meson pair production in proton-proton collisions

... central diffractive contribution mediated by Pomeron and Reggeon exchanges and new diffractive mechanism of emission of pions/kaons from the proton lines. We include ab- sorption effects due to proton-proton interaction ...

5

Exploratory studies for the position-space approach to hadronic light-by-light scattering in the muon g - 2

Exploratory studies for the position-space approach to hadronic light-by-light scattering in the muon g - 2

... correlation function i Π ˆ . The first test is the π 0 -pole contribution in a vector-meson dominance model for the transition form factor, and the second is a lepton loop. We reproduce the known analytic ...

7

GPDs in heavy meson production and Compton scattering

GPDs in heavy meson production and Compton scattering

... heavy meson production case, high energy resummation techniques are suggested as a tool to provide reliable the- oretical predictions in this kinematical ...

7

Meson production in hadron- and photon-induced reactions

Meson production in hadron- and photon-induced reactions

... Any meson-exchange DCC model such as the present one should, in principle, have built in the con- straints of ...into meson-exchange models is one of the major improvements needed for these ...

6

Eta Meson Production in Proton-Deuteron Collisions

Eta Meson Production in Proton-Deuteron Collisions

... η meson in the center-of-mass system are presented in arbitrary units including statistical uncertainties and systematic uncertainties except contributions from the overall normaliza- ...

6

Constraints on atmospheric charmed-meson production from IceCube

Constraints on atmospheric charmed-meson production from IceCube

... charm production has been described in many ways and with di ff erent complexity, from intrinsic charm [24] to the inclusion of di ff ractive components in perturbative QCD ...

5

Magnetic structure of vector mesons in lattice QCD

Magnetic structure of vector mesons in lattice QCD

... charged vector ρ meson the magnetic polarizability and hyperpolarizability have been calculated depending on the spin projection on the the magnetic ...

8

Global analysis of charge exchange meson production at high energies

Global analysis of charge exchange meson production at high energies

... Since the Regge picture has been well established for πN scattering and π and η (0) photoproduction off the proton, in this work, we proceed to examine the Regge pole model in a global analysis of several quasi-two-body ...

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Chiral symmetry restoration in σ-meson production in hadronic processes

Chiral symmetry restoration in σ-meson production in hadronic processes

... if such scalar meson exists. However, from the phase-shift analysis derived from CERN-Munich experiment of 1974 [4] one observed a rather smooth behavior of the 0 0 phase in scattering up to invariant mass M = ...

5

Hadronic properties of the photon

Hadronic properties of the photon

... Abstract. Currently it is no doubt that high energy photons (real or virtual) have a hadronic component leading to photon shadowing in its interaction with nuclei. We shortly consider the difficulties appeared in the ...

5

Coupled channels approach to photo-meson production on the nucleon

Coupled channels approach to photo-meson production on the nucleon

... Understanding the dynamics of eta-meson production and, vice versa, the decay of nucleon resonances into the nucleon-eta exit channel is of ongoing interest in hadron spectroscopy. The η-meson ...

12

Single and double charmed meson production at the LHC

Single and double charmed meson production at the LHC

... Recently, the relative importance of the conventional and single-ladder-splitting DPS processes has been studied in Ref. [15], for various processes whose production is dominated by gluon-gluon fusion. In this ...

6

Tensor pomeron, vector odderon and diffractive production of meson and baryon pairs in proton-proton collisions

Tensor pomeron, vector odderon and diffractive production of meson and baryon pairs in proton-proton collisions

... tensor, vector, and scalar, with current experimental data on polarised pp elastic scattering ...the vector-pomeron case a big problem arise if we consider pp and ¯ pp ...a vector pomeron ...

11

Vector Meson Photoproduction with a Linearly Polarized Beam

Vector Meson Photoproduction with a Linearly Polarized Beam

... the vector meson de- cay products ...tor meson SDMEs were performed at SLAC [10], result- ing in the following qualitative conclusions: the natural exchanges contributing to ρ 0 , ω and φ ...

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