rho^0 Photoproduction in Ultra-Peripheral Relativistic Heavy Ion Collisions with STAR
B.I. Abelev et al., Phys. Rev. C 77, 34910 (2008).

Fig 2a. ZDC east spectra obtained with the minimum bias sample after the rho^0 selection cuts are applied.

Fig 2b. ZDC west spectra obtained with the minimum bias sample after the rho^0 selection cuts are applied.

Fig 3a.The invariant mass distribution for the coherently produced rho^{0} candidates from the minimum bias sample with the cut on the rho^{0} transverse momentum p_T < 150~MeV/c.

Fig 3b The invariant mass distribution for the coherently produced rho^{0} candidates obtained from the topology sample with the cut on the rho^{0} transverse momentum p_T < 150~MeV/c.

Fig 4. The ratio |B/A| as a function of y_{rho^{0}} for the minimum bias data.

Fig 5. Coherent rho^{0} production cross-section for the minimum bias data set as a function of y_{rho^{0}} (black dots) overlaid by the d\sigma/dy distribution predicted by the KN model.

Fig 6. rho^{0} production cross-section as a function of the momentum transfer squared t.

Fig 7. Comparison of theoretical predictions to the measured differential cross-section for coherent rho^{0} production.

Model by V. P. Goncalves and M. V. T. Machado, Eur. Phys. J. C40, 519 (2005)

Model by L. Frankfurt, M. Strikman and M. Zhalov, Phys. Lett. B537, 51 (2002)

Model by S. Klein and J. Nystrand, Phys. Rev. C60, 014903 (1999)

Measured

Fig 8a. Projection (Phi_{h}) of the two dimensional efficiency corrected Phi_{h} vs cos(Theta_{h}) distributions obtained with the minimum bias data set.

Fig 8b. Projection (cos(Theta_{h})) of the two dimensional efficiency corrected Phi_{h} vs cos(Theta_{h}) distributions obtained with the minimum bias data set.

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