Asymptotic gluon density within the color dipole picture in light of HERA high-precision data
نویسندگان
چکیده
We present an analysis of the most precise set HERA data within color dipole formalism, by using analytical gluon density, based on double-logarithm approximation DGLAP equations in asymptotic limit scaling variable, $\sigma=\log{(1/x)}\log{(\log{(Q^2/Q_ 0^2)})}\rightarrow \infty$. Fits to data, including charm and bottom quarks are performed demonstrate efficiency model describing reduced cross section, $\sigma_{r}$, wide range $Q^2:(1.5,500)$ GeV$^2$ for two models parton saturation effects. also give predictions $F_{2}^{c\bar{c}}$ , $F_{2}^{b\bar{b}}$ $F_{L}$, all reasonably well $Q^2:(2.5,120)$ GeV$^2$. Total sections exclusive photoproduction $J/\psi$ $\rho$ calculated successfully compared recent measurements at LHCb.
منابع مشابه
Exclusive diffractive processes at HERA within the dipole picture
We present a simultaneous analysis, within an impact parameter dependent saturated dipole model, of exclusive diffractive vector meson (J/ψ, φ and ρ) production, deeply virtual Compton scattering and the total γ∗p cross section data measured at HERA. Various cross sections measured as a function of the kinematic variables Q2, W and t are well described, with little sensitivity to the details of...
متن کاملromantic education:reading william wordsworths the prelude in the light of the history of ideas
عصر روشنگری زمان شکل گیری ایده های مدرن تربیتی- آموزشی بود اما تاکید بیش از اندازه ی دوشاخه مهم فلسفی زمان یعنی عقل گرایی و حس گرایی بر دقت و وضوح، انسان عصر روشنگری را نسبت به دیگر تواناییهایش نابینا کرده و موجب به وجود آمدن افرادی تک بعدی شد که افتخارعقلانیتشان، تاکید شان بر تجربه فردی، به مبارزه طلبیدن منطق نیاکانشان وافسون زدایی شان از دنیا وتمام آنچه با حواس پنجگانه قابل درک نبوده و یا در ...
Small-x neutrino-hadron structure functions in charged current DIS within the QCD color dipole picture
We present an exploratory QCD analysis of the neutrino structure functions in charged current DIS using the color dipole formalism. The corresponding dipole cross sections are taken from recent phenomenological/theoretical studies in deep inelastic inclusive production. The theoretical predictions are compared to the available experimental results in the small-x region. In particular, the behav...
متن کاملColor dipole phenomenology of diffractive electroproduction of light vector mesons at HERA
We develop the color dipole phenomenology of diffractive photoand electroproduction γ∗ N → V (V ′)N of light vector mesons (V (1S) = φ0, ω0, ρ0) and their radial excitations (V ′(2S) = φ′, ω′, ρ′). The node of the radial wave function of the 2S states in conjunction with the energy dependence of the color dipole cross section is shown to lead to a strikingly different Q2 and ν dependence of dif...
متن کاملheterogeneity within the orientalist discourse: representation of the orient in womens travelogues and mens paintings
from 1950s onward, new theories and critical approaches burgeoned across humanities. these theories were context-oriented; as a result, the analysis of discursive practices gained significance. thus, social, political, historical and cultural discourses that have been hitherto marginalized and considered inferior to literary texts, were introduced as important texts to be analyzed by critics. o...
ذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical review
سال: 2023
ISSN: ['0556-2813', '1538-4497', '1089-490X']
DOI: https://doi.org/10.1103/physrevd.107.014004