Conveners
Parallel Session: Particle Phenomenology 1b
- Daniel Dercks
Dr
David Straub
(TUM)
28/09/2017, 16:05
Particle Phenomenology
Several deviations from Standard Model expectations have been observed in decays of B mesons in recent years, including hints for violation of lepton flavour universality in b->c and b->s transitions and deviations in branching ratios and angular observables in exclusive semileptonic rare decays. While these "anomalies" could be explained by a combination of statistical fluctuations in some...
Dr
Sofiane Boucenna
(KTH Royal Institute of Technology)
28/09/2017, 16:22
Cosmology & Astroparticle Physics
Neutrino masses generated by physics around the weak-scale offer the advantage of testability, however from the model-building viewpoint they appear to be ad-hoc. I will present two classes of models which predict a radiative seesaw formula for neutrino masses and the presence of weakly interacting stable dark matter from (non-supersymmetric) SO(10) Grand Unified Theories. The model achieves...
Dr
Wen Yin
(IHEP in Chinese Academy of Sciences)
28/09/2017, 16:39
Particle Phenomenology
We propose a scenario where both inflation and dark matter are described by a single axion-like particle (ALP) in a unified manner. In a class of the minimal axion hilltop inflation, the effective masses at the maximum and minimum of the potential have equal magnitude but opposite sign, so that the ALP inflaton is light both during inflation and in the true vacuum. After inflation, most of the...
Enrico Morgante
(DESY)
28/09/2017, 16:56
Particle Phenomenology
In this talk I will analyze realizations of the relaxion mechanism in which quantum excitations of an auxiliary field slow down the relaxion and fix the Higgs vev at the electro-weak scale.
Nayara Fonseca
(DESY)
28/09/2017, 17:13
Particle Phenomenology
The relaxion idea is a new alternative to justify the smallness of the Higgs mass. In this framework, the effective Higgs mass is scanned by a scalar field (the relaxion) starting at some large value which slowly decreases during inflation. We propose a UV completion for this mechanism in the context of warped extra dimension scenarios. In our construction, the warp factor can naturally...
Mr
Miguel Campos
(Max-Planck-Institut für Kernphysik)
28/09/2017, 17:30
Particle Phenomenology
We revisit the status of a Majorana fermion as a dark matter candidate, when a sequential Z' gauge boson dictates the dark matter phenomenology. Direct dark matter detection signatures rise from dark matter-nucleus scatterings at bubble chamber and liquid xenon detectors, and from the flux of neutrinos from the Sun measured by the IceCube experiment, which is governed by the spin-dependent...
