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Article Dans Une Revue Modern Physics Letters A Année : 2005

Signatures of Tev Scale Gravity in High Energy Collisions

Résumé

In TeV scale unification models, gravity propagates in 4+delta dimensions while gauge and matter fields are confined to a four-dimensional brane, with gravity becoming strong at the TeV scale. For a such scenario, we study strong gravitational interactions in an effective Schwarzschild geometry. Two distinct regimes appear. For large impact parameters, the ratio rho~(Rs/r0)1+delta, (with Rs the Schwarzschild radius and r0 the closest approach to the black hole), is small and the deflection angle chi is proportional to rho (this is like Rutherford-type scattering). For small impact parameters, the deflection angle chi develops a logarithmic singularity and becomes infinite for rho = rhoc = 2/(3+delta). This singularity is reflected into a strong enhancement of the backward scattering (like a glory-type effect). We suggest as distinctive signature of black hole formation in particle collisions at TeV energies, the observation of backward scattering events and their associated diffractive effects.

Dates et versions

hal-03785933 , version 1 (23-09-2022)

Identifiants

Citer

A. Nicolaidis, Norma G. Sánchez. Signatures of Tev Scale Gravity in High Energy Collisions. Modern Physics Letters A, 2005, 20, pp.1203-1208. ⟨10.1142/S0217732305017457⟩. ⟨hal-03785933⟩
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