Light vector meson photoproduction nucleus
WebSep 5, 2012 · Cross sections of coherent light vector meson photoproduction in ultraperipheral proton-proton and proton-nucleus interactions on the Large Hadron … WebJul 10, 2000 · We consider two coupled problems. We study the dependence on the photon virtuality Q2 for the semihard quasi-elastic photoproduction of neutral vector mesons on …
Light vector meson photoproduction nucleus
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WebApr 17, 2004 · Abstract.We calculate the nuclear cross section for vector meson exclusive photoproduction within the QCD color dipole picture and in the Regge approach. For the … WebThe analysis of light vector meson production by a high-energy electron or photon beam in a particle accelerator provides insight into the composition of the proton, further expanding the fundamental un-derstanding of physics. The electro-production of light vector mesons o of protons happens when a high
WebFeb 28, 2024 · The most studied production mechanism is dark Bremsstrahlung through a vector mediator. In this work, we explore a complementary source of missing energy-momentum signals: Bremsstrahlung photons can convert to hard vector mesons in exclusive photoproduction processes, which then decay to dark matter or other invisible … WebAbstract.We study coherent and incoherent φ-meson photoproduction from nuclei. The available data are analyzed in terms of single- and coupled-channel photoproduction. It is found that the data on coherent photoproduction can be well reproduced within a single-channel optical model and show only little room for ω-φ mixing. These data indicate a …
WebFeb 6, 2024 · In this work, under the definition of the vector meson dominant model, the trace anomaly contribution of the proton is extracted from the experimental data of light vector mesons $$\rho $$ , $$\omega $$ and $$\phi $$ photoproduction at the near-threshold, which are ( $$0.53\pm 0.15$$ ) $$\%$$ , ( $$1.47\pm 0.48$$ ) $$\%$$ and ( … WebAn analysis of light vector meson photoproduction at small Bjorken x ≤ 0.2 is done on the basis of the generalized parton distributions (GPDs). Our results on the cross section and spin density matrix elements (SDME) are in good agreement with experiments. This report is devoted to the study of the vector meson leptoproduction at Bjorken
WebQCD sum rules predict that the change of the strange quark condensate 〈¯ss〉 in hadron matter at finite baryon density causes a shift of the peak position of the di-electron spectra from φ-meson decays. Due to the expansion of hadron matter in heavy-ion collisions, the φ peak suffers a smearing governed by the interval of density in the expanding fireball, …
WebINIS Repository Search provides online access to one of the world's largest collections on the peaceful uses of nuclear science and technology. The International Nuclear Information System is operated by the IAEA in collaboration with over 150 members. eatshoping.shopWebCoherent J/y photoproduction in ultra-peripheral Pb-Pb collisions at √sNN= 2.76 TeV. Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning. Udgivet. 1958 downloads. Light vector meson production in pp collisions at sqrt(s) = 7 TeV. Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt. eat shop do londonWebEnter the email address you signed up with and we'll email you a reset link. eat shop in solon iowaWebJul 15, 2014 · Among many exciting directions of UPC studies, coherent and incoherent photoproduction of light vector mesons on nuclei allow one to investigate soft meson … eat shop localWebWe quantify perturbative and non-perturbative QCD effects in the exclusive -photoproduction cross section, and in the shrinkage of the differential cross section with respect to momentum transfer, . We predict that in … eat shop enjoyWebJul 25, 2024 · We calculate the hard photoproduction of light vector meson from the fragmentation of photon in Pb–Pb col-lisions. Usingthe … eat shop relax mspWebFeb 26, 2024 · We propose a model based on Regge theory to describe photoproduction of light vector mesons. We fit the SLAC data and make predictions for the energy and momentum transfer dependence of the spin-density matrix elements in photoproduction of , and mesons at GeV, which are soon to be measured at Jefferson Lab. Submission history eat shop live wawa