Color transparency in the reaction nuclear rho production by virtual photons

Abstract

We study the nuclear transparency $T$ for the exclusive reaction ${\gamma }^{\ast }+A\to \rho +p+(A-1{)}^{\ast }$ at incident virtual photon energies $\nu \ge$ 10 GeV %where the final state of the $A-1$-nucleon system is a one-hole state of the initial nucleus, to investigate the separate dependence on the photon virtuality, $Q^2$ and the 4-momentum-transfer-squared to the knocked-out proton, $t$. If the effects of color transparency are included, $T$ shows significant variation with $t$ even for small values of $Q^2$ for fixed values of the coherence length $l_c$, and also shows significant increase as $Q^2$ is increased at fixed $l_c$ and $t$. The value of $T$ is found to depend strongly on the phase space over which it is measured.

22 pages, 10 figures

References in corpus (6)

• Measurement of Nuclear Transparency for the A(e,e' pi^+) Reaction
• Evidence for the Onset of Color Transparency in ${\rho }^0$ Electroproduction off Nuclei
• Pionic Color Transparency
• Color Transparency in Semi-Inclusive Electroproduction of rho Mesons
• Color transparency in hadronic attenuation of rho0 mesons
• Nuclear transparencies from photoinduced pion production

Cited by in corpus (6)

• Color transparency in ${\pi }^{-}$-induced dilepton production on nuclei
• Nuclear transparency of the charged hadron produced in the inclusive electronuclear reaction
• Absorption of $\omega$ and $\varphi$ mesons in the inclusive photonuclear reaction
• Color transparency of $K^{+}$ meson produced in the inclusive $(e,e^{\prime })$ reaction on nuclei
• The comparative role of 7Li(n,γ) reaction in primordial nucleosynthesis
• Transparency of the $\gamma (n,p){\pi }^{-}$ reaction in nuclei