Zobrazeno 1 - 10
of 137
pro vyhledávání: '"Katz, Andrey"'
Publikováno v:
JHEP 10 (2020) 049
We discuss a minimal realization of the strongly interacting massive particle (SIMP) framework. The model includes a dark copy of QCD with three colors and three light flavors. A massive dark photon, kinetically mixed with the Standard Model hypercha
Externí odkaz:
http://arxiv.org/abs/2006.15148
We explore a novel search strategy for dark matter in the form of massive compact halo objects (MACHOs) such as primordial black holes or dense mini-halos in the mass range from $10^{-4}$ to 0.1 solar masses. These objects can gravitationally lens th
Externí odkaz:
http://arxiv.org/abs/1912.07620
We study dynamical friction in interacting relativistic systems with arbitrary mean free paths and medium constituent masses. Our novel framework recovers the known limits of ideal gas and ideal fluid when the mean free path goes to infinity or zero,
Externí odkaz:
http://arxiv.org/abs/1906.05341
Publikováno v:
High Energ. Phys. (2019) 2019: 32
We propose a novel strategy to test lepton flavor universality (LFU) in top decays, applicable to top pair production at colliders. Our proposal exploits information in kinematic distributions and mostly hinges on data-driven techniques, thus having
Externí odkaz:
http://arxiv.org/abs/1808.00964
Publikováno v:
JCAP12(2018)005
Femtolensing of gamma ray bursts (GRBs) has been put forward as an exciting possibility to probe exotic astrophysical objects with masses below $10^{-13}$ solar masses such as small primordial black holes or ultra-compact dark matter minihalos, made
Externí odkaz:
http://arxiv.org/abs/1807.11495
Autor:
Ismail, Ahmed, Katz, Andrey
We propose novel collider searches which can significantly improve the LHC reach to new gauge bosons $Z'$ with mixed anomalies with the electroweak (EW) gauge group. Such a $Z'$ necessarily acquires a Chern-Simons coupling to the EW gauge bosons and
Externí odkaz:
http://arxiv.org/abs/1712.01840
Publikováno v:
JHEP 1710 (2017) 165
We study electroweak scale Dark Matter (DM) whose interactions with baryonic matter are mediated by a heavy anomalous $Z'$. We emphasize that when the DM is a Majorana particle, its low-velocity annihilations are dominated by loop suppressed annihila
Externí odkaz:
http://arxiv.org/abs/1707.00709
We investigate the general structure of mirror symmetry breaking in the Twin Higgs scenario. We show, using the IR effective theory, that a significant gain in fine tuning can be achieved if the symmetry is broken hardly. We emphasize that weakly cou
Externí odkaz:
http://arxiv.org/abs/1611.08615
Autor:
Katz, Andrey, Riotto, Antonio
We propose a novel mechanism for production of baryonic asymmetry in the early Universe. The mechanism takes advantage of the strong first order phase transition that produces runaway bubbles in the hidden sector that propagate almost without frictio
Externí odkaz:
http://arxiv.org/abs/1608.00583
Autor:
Jacques, Thomas, Katz, Andrey, Morgante, Enrico, Racco, Davide, Rameez, Mohamed, Riotto, Antonio
We analyze the constraints from direct and indirect detection on fermionic Majorana Dark Matter (DM). Because the interaction with the Standard Model (SM) particles is spin-dependent, a priori the constraints that one gets from neutrino telescopes, t
Externí odkaz:
http://arxiv.org/abs/1605.06513