We study the effective interactions induced by loops of extra-dimensional gravitons and show the special role of a specific dimension-6 four-fermion operator, product of two flavour-universal axial currents. By introducing an ultraviolet cut-off, we compare the present constraints on low-scale quantum gravity from various processes involving real-graviton emission and virtual-graviton exchange. The LEP2 limits on dimension-6 four-fermion interactions give one of the strongest constraint on the theory, in particular excluding the case of strongly-interacting gravity at the weak scale
Extra spatial dimensions are proposed by recent theories that postulate the scale of gravity to be o...
We consider the Kaluza-Klein scenario in which gravity propagates in the 4+n dimensional bulk of spa...
Recent theories propose that quantum gravity effects may be observable at LEP energies via gravitons...
We study the effective interactions induced by loops of extra-dimensional gravitons and show the spe...
A recent suggestion that quantum gravity may become strong near the weak scale has several testable ...
Recently it has been pointed out that the characteristic quantum-gravity scale could be as low as th...
We analyze the potentiality of the new generation of $e^+e^-$ linear colliders to search for large e...
We analyze the propagation of a scalar field in multidimensional theories which include kinetic corr...
We discuss how to consistently perform effective Lagrangian computations in quantum gravity with bra...
We discuss how to consistently perform effective Lagrangian computations in quantum gravity with bra...
We discuss how to consistently perform effective Lagrangian computations in quantum gravity with bra...
Recent theories propose that quantum gravity effects may be observable at LEP energies via gravitons...
Extra spatial dimensions are proposed by recent theories that postulate the scale of gravity to be o...
Extra spatial dimensions are proposed by recent theories that postulate the scale of gravity to be o...
Extra spatial dimensions are proposed by recent theories that postulate the scale of gravity to be o...
Extra spatial dimensions are proposed by recent theories that postulate the scale of gravity to be o...
We consider the Kaluza-Klein scenario in which gravity propagates in the 4+n dimensional bulk of spa...
Recent theories propose that quantum gravity effects may be observable at LEP energies via gravitons...
We study the effective interactions induced by loops of extra-dimensional gravitons and show the spe...
A recent suggestion that quantum gravity may become strong near the weak scale has several testable ...
Recently it has been pointed out that the characteristic quantum-gravity scale could be as low as th...
We analyze the potentiality of the new generation of $e^+e^-$ linear colliders to search for large e...
We analyze the propagation of a scalar field in multidimensional theories which include kinetic corr...
We discuss how to consistently perform effective Lagrangian computations in quantum gravity with bra...
We discuss how to consistently perform effective Lagrangian computations in quantum gravity with bra...
We discuss how to consistently perform effective Lagrangian computations in quantum gravity with bra...
Recent theories propose that quantum gravity effects may be observable at LEP energies via gravitons...
Extra spatial dimensions are proposed by recent theories that postulate the scale of gravity to be o...
Extra spatial dimensions are proposed by recent theories that postulate the scale of gravity to be o...
Extra spatial dimensions are proposed by recent theories that postulate the scale of gravity to be o...
Extra spatial dimensions are proposed by recent theories that postulate the scale of gravity to be o...
We consider the Kaluza-Klein scenario in which gravity propagates in the 4+n dimensional bulk of spa...
Recent theories propose that quantum gravity effects may be observable at LEP energies via gravitons...