Color Transparency in Semi-Inclusive Electroproduction of rho Mesons

Abstract

We study the electroproduction of rho mesons in nuclei at intermediate energies, deriving a treatment of the energy lost by the rho in each step of multiple-scattering. This enables a close match between calculations and the experimental kinematic conditions. A standard Glauber calculation is presented, and then the effects of color-transparency are included. The influence of poor experimental resolution on the extracted transparency is assessed. The effects of $\rho$ meson decay inside the nucleus are examined, and are typically about 5 percent at most. This effect disappears rapidly as $Q^2$ increases from about 1 to 3 GeV${}^2$, causing a rise in the transparency that is not attributable to color transparency. The size of color transparency effects for C and Fe nuclei is studied for values of $Q^2$ up to 10 GeV${}^2$. The detailed results depend strongly on the assumed value of the $\rho N$ cross section. The overall effects of color transparency are greater than about 10 % for both nuclear targets if $Q^2$ is greater than about 5 GeV${}^2$.

arXiv comment20 pages, 19 figures replacement adds references

References in corpus (19)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• Factorization for hard exclusive electroproduction of mesons in QCD
• Diffractive Leptoproduction of Vector Mesons in QCD
• Coherent Nuclear Diffractive Production of Minijets - Illuminating Color Transparency
• HERA Collider Physics
• The Geometrical Color Optics Of Coherent High Energy Processes
• A-dependence of nuclear transparency in quasielastic A(e,e'p) at high Q^2
• Observation of color-transparency in diffractive dissociation of pions
• Color Transparency versus Quantum Coherence in Electroproduction of Vector Mesons off Nuclei
• Measurement of Nuclear Transparency for the A(e,e' pi^+) Reaction
• Nuclear Transparency in 90 Degree c.m. Quasielastic A(p,2p) Reactions
• Pionic Color Transparency
• Realistic Hadronic Matrix Element Approach to Color Transparency
• Coherent QCD phenomena in the Coherent Pion-Nucleon and Pion-Nucleus Production of Two Jets at High Relative Momenta
• Color transparency and short-range correlations in exclusive pion photo- and electroproduction from nuclei
• Natural Color Transparency in High Energy (p,pp) Reactions
• Perturbative Pion Wave function in Coherent Pion-Nucleon Di-Jet Production
• Color Transparency at Low Energies: Predictions for JLAB
• Incoherent rho^0 electroproduction off nuclei

Cited by in corpus (16)

• Physics Opportunities with the 12 GeV Upgrade at Jefferson Lab
• Color Transparency: past, present and future
• Evidence for the Onset of Color Transparency in ${\rho }^0$ Electroproduction off Nuclei
• Faddeev and Glauber Calculations at Intermediate Energies in a Model for n+d Scattering
• Color transparency in hadronic attenuation of rho0 mesons
• Strong Interaction Physics at the Luminosity Frontier with 22 GeV Electrons at Jefferson Lab
• Nuclear rho transparencies in a relativistic Glauber model
• Color transparency in ${\pi }^{-}$-induced dilepton production on nuclei
• Color transparency in the reaction nuclear rho production by virtual photons
• Nuclear transparency of the charged hadron produced in the inclusive electronuclear reaction
• Searching for an Enhanced Signal of the onset of Color Transparency in Baryons with D(e,e'p)n scattering
• Color transparency in $\bar{p}d\to {\pi }^{-}{\pi }^{0}p$ reaction
• Studying Short-Range Correlations with Real Photon Beams at GlueX
• Color transparency of $K^{+}$ meson produced in the inclusive $(e,e^{\prime })$ reaction on nuclei
• Transparency of the $\gamma (n,p){\pi }^{-}$ reaction in nuclei
• The search for the onset of Color Transparency: a status report