TeV strings and collider probes of large extra dimensions - art. no. 055012

Arkani-Hamed, Dimopoulos, and Dvali have proposed that the fundamental grav itational scale is close to 1 TeV, and that the observed weakness of gravit y at long distances is explained by the presence of large extra compact dim ensions. If this scenario is realized in a string theory of quantum gravity , the string excited states of standard model particles will also have TeV masses. These states will be visible to experiment and in fact provide the first signatures of the presence of a low quantum gravity scale. Their pres ence also affects the more familiar signatures due to real and virtual grav iton emission. We study the effects of these states in a simple string mode l.