Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2011-07-06
Zh. Eksp. Theor. Phys. 141: 267-275, 2012; J. Exp. Theor. Phys. 114: 234-242, 2012
Physics
High Energy Physics
High Energy Physics - Theory
16 pages, Latex, no figure
Scientific paper
10.1134/S1063776111160072
Using the boundary state formalism we study a moving D$p$-brane in a partially compact spacetime in the presence of the background fields: Kalb-Ramond $B_{\mu\nu}$, a U(1) gauge field $A_{\alpha}$ and the tachyon field. The boundary state enables us to obtain interaction amplitude of two branes with above background fields. The branes are parallel or perpendicular to each other. Presence of the background fields, compactification of some directions of the spacetime, motion of the branes and arbitrariness of the branes' dimensions give a general feature to the system. Due to the tachyon fields and velocities of the branes, the behavior of the interaction amplitude reveals obvious differences from what is conventional.
Kamani Davoud
Rezaei Zahra
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