The distance to the LMC cluster Reticulum from the K-band   Period-Luminosity-Metallicity relation of RR Lyrae stars
  We present new and accurate Near-Infrared J and Ks-band data of the Large Magellanic Cloud cluster Reticulum. Data were collected with SOFI available at NTT and covering an area of approximately (5 x 5) arcmin^2 around the center of the cluster. Current data allowed us to derive accurate mean K-band magnitudes for 21 fundamental and 9 first overtone RR Lyrae stars. On the basis of the semi-empirical K-band Period-Luminosity-Metallicity relation we have recently derived, we find that the absolute distance to this cluster is 18.52 +- 0.005 (random) +- 0.117 (systematic). Note that the current error budget is dominated by systematic uncertainty affecting the absolute zero-point calibration and the metallicity scale. 
M. Dall'ora (INAF-Oar, Univ. of Rome Tor Vergata), J. Storm (AIP), G.   Bono (INAF-Oar), V. Ripepi (INAF-Oac), M. Monelli (I...