Nuclear rho transparencies in a relativistic Glauber model

Abstract

[Background] The recent Jefferson Lab data for the nuclear transparency in ${\rho }^0$ electroproduction have the potential to settle the scale for the onset of color transparency (CT) in vector meson production. [Purpose] To compare the data to calculations in a relativistic and quantum-mechanical Glauber model and to investigate whether they are in accordance with results including color transparency given that the computation of $\rho$-nucleus attenuations is subject to some uncertainties. [Method] We compute the nuclear transparencies in a multiple-scattering Glauber model and account for effects stemming from color transparency, from $\rho$-meson decay, and from short-range correlations (SRC) in the final-state interactions (FSI). [Results] The robustness of the model is tested by comparing the mass dependence and the hard-scale dependence of the $A(e,e^{\prime }p)$ nuclear transparencies with the data. The hard-scale dependence of the $(e,e^{\prime }{\rho }^0)$ nuclear transparencies for ${}^{12}$C and ${}^{56}$Fe are only moderately affected by SRC and by ${\rho }^0$-decay. [Conclusions] The RMSGA calculations confirm the onset of CT at four-momentum transfers of a few (GeV/c)${}^2$ in $\rho$ meson electroproduction data. A more precise determination of the scale for the onset of CT is hampered by the lack of precise input in the FSI and $\rho$-meson decay calculations.

18 pages, 5 figures. Revised version to appear in PRC. Minor corrections, added discussion and figure about CT parameters dependence. Results and conclusions remain the same

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• Nuclear Structure in the Framework of the Unitary Correlation Operator Method
• Measurement of Nuclear Transparency for the A(e,e' pi^+) Reaction
• Color Transparency: past, present and future
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• Pionic Color Transparency
• Color transparency and short-range correlations in exclusive pion photo- and electroproduction from nuclei
• Pionic transparency in semi-exclusive electroproduction off nuclei
• Relativistic eikonal description of A(p,pN) reactions
• Color Transparency in Semi-Inclusive Electroproduction of rho Mesons
• Nuclear transparencies from photoinduced pion production
• Color transparency in hadronic attenuation of rho0 mesons
• A relativistic framework to determine the nuclear transparency from A(p,2p) reactions

Cited by in corpus (10)

• Extracting the Mass Dependence and Quantum Numbers of Short-Range Correlated Pairs from A(e,e'p) and A(e,e'pp) Scattering
• Nuclear Transparency in Monte Carlo Neutrino Event Generators
• Factorization of exclusive electroinduced two-nucleon knockout
• Final-state interactions in two-nucleon knockout reactions
• Strong Interaction Physics at the Luminosity Frontier with 22 GeV Electrons at Jefferson Lab
• u-Channel Color Transparency Observables
• Searching for an Enhanced Signal of the onset of Color Transparency in Baryons with D(e,e'p)n scattering
• Comparison of Validation Methods of Simulations for Final State Interactions in Hadron Production Experiments
• Nuclear $\text{C}(e,e^{\prime }p)$ Transparencies in a Relativistic Glauber Model
• Model of multiple Dirac eikonal scattering of protons by nuclei