Prof.
Jarah Evslin
(Institute of Modern Physics, CAS)
20/05/2016, 10:50
I will review recent challenges to WIMP dark matter models and describe how some of them are addressed by giant 't Hooft-Polyakov monopole models. These models exist in theories with a dark sector including a dark SU(2) gauge symmetry coupled to an adjoint Higgs and two fundamental fermions. Several consistency checks of such models will be described, including consistency with MACHO bounds...
Dr
Michelangelo Preti
(Università degli Studi di Parma)
20/05/2016, 11:10
We study the cusp anomalous dimension in N=6 ABJ(M) theory, identifying a scaling limit in which the ladder diagrams dominate. The resummation is encoded into a Bethe-Salpeter equation that is mapped to a Schroedinger problem, exactly solvable due to the surprising supersymmetry of the effective Hamiltonian. In the ABJ case the solution implies the diagonalization of the U(N) and U(M) building...
Mr
Filippo Sala
(LPTHE Paris)
20/05/2016, 11:10
Weakly interactive massive particles (WIMP), as candidates of Dark Matter, motivate new physics at the TeV scale independently of electroweak naturalness. What will be the role of gamma-ray telescopes in probing this paradigm, also in comparison with other experiments, like colliders?
I will examine this question in the case of electroweak multiplets, which constitute a WIMP ``prototype’’,...
Marco Bochicchio
(ROMA1)
20/05/2016, 12:10
For large-N confining asymptotically-free gauge theories with no perturbative mass scale we investigate the compatibility between the asymptotic freedom of the S-matrix and the planar duality of disk amplitudes of their would-be string solutions.
Several implications for any would-be string solution of large-N QCD with massless quarks follow.
Dr
Alessandro Nagar
(IHES)
20/05/2016, 12:10
The direct detection by the LIGO detector of the gravitational waves emitted by a coalescing black hole binary (GW150914) has marked the beginning of gravitational wave astronomy. Motivated by the recent experimental result, I will review recent results about analytical effective-one-body (EOB) approach to the general-relativistic two-body dynamics, notably its completion using numerical...
Mr
Gabriele Lo Monaco
(Università di Pisa)
20/05/2016, 12:30
After a brief review of the interaction problem in higher-spin theory, I will illustrate the construction of cubic vertices for higher-spin gauge fields described at free level by a new class of Lagrangians, termed Maxwell-like.
The latter generalise the Fronsdal formulation to the case of reducible multiplets of massless particles and can be shown to be directly related to free tensionless...
