Keywords: Early universe (435); Galaxy evolution (594); Galaxy formation (595); High-redshift galaxies (734); High-redshift galaxy clusters (2007)

1. INTRODUCTION

2. DATA & OBSERVATIONS  
2.1. Imaging Data & Photometry  
2.2. Photometric Redshifts & Sample Selection  
2.3. Spectroscopic Data & Emission Line Detection  

3. ANALYSIS & RESULTS  
3.1. Overdensity Identification  
3.2. Stellar Population Modeling  
3.3. Dark Matter Halo Mass Estimates  
3.4. Comparison with Previous Works  

4. SUMMARY & CONCLUSIONS