Phenomenology 2014 Symposium

Session

Neutrinos I

5 May 2014, 14:00

University of Pittsburgh

Conveners

Neutrinos I

• Sogee Spinner

86. Democratic Neutrino Theory

Dmitry Zhuridov (Wayne State University)

05/05/2014, 14:00

I will discuss the Democratic Neutrino Theory and its origin from the level of composed leptons. This Theory has only one free parameter, unlike to 7 (9) free parameters in the conventional model of light Dirac (Majorana) neutrinos. In addition to the agreement with the results of Super Kamiokande, SNO, MINOS and other neutrino experiments, the discussed Theory sets the absolute scale of the...

122. Predictive models of Dirac Neutrinos

Ms Shreyashi Chakdar (Oklahoma State University)

05/05/2014, 14:15

In the first work, assuming lepton number conservation, hermiticity of the neutrino mass matrix and $\nu_{\mu} - \nu_{\tau}$ exchange symmetry, we show that we can determine the neutrino mass matrix completely from the existing data. This model predicts an inverted mass hierarchy (close to a degenerate pattern) with the three neutrino mass values, $8.91 \times 10^{-2}, 8.95 \times 10^{-2},...

174. Origin of the Icecube TeV-PeV neutrino events.

Jordi Salvado (W)

05/05/2014, 14:30

Recently IceCube collaboration presented the evidence for high energy extraterrestrial neutrinos, the nature of these neutrinos is still unknown and opens the possibility to a new physics explanations. In this talk I will present a geometric analysis trying to discriminate between different explanations.

44. Probing Radiative Neutrino Mass Generation through Monotop Production

Alejandro de la Puente (TRIUMF)

05/05/2014, 14:45

We present a generalization of a model where the right-handed up-type quarks serve as messengers for neutrino mass generation and as a portal for dark matter. Within this framework the Standard Model is extended with a single Majorana neutrino, a coloured electroweak-singlet scalar and a coloured electroweak-triplet scalar. We calculate the relic abundance of dark matter and show that we can...

32. LHC bounds on the inverse seesaw neutrino production

Mr Arindam Das (University of Alabama)

05/05/2014, 15:00

In the inverse seesaw scenario, pseudo-Dirac neutrinos with mass at the electroweak scale can have a sizable mixing with the Standard Model (SM) neutrinos, while providing the light neutrino masses through a small lepton number violation. We study the production of the heavy neutrinos through their mixing with the SM neutrinos at the Large Hadron collider (LHC). Utilizing the search...

121. New Tests of Neutrino Mass-Generating Mechanisms at the LHC

Richard Ruiz (University of Pittsburgh)

05/05/2014, 15:15

We investigate the production of a heavy Majorana neutrino with jets that arise from the U(1)_EM radiative corrections to the Drell-Yan mechanism at the CERN LHC. Preliminary results will be shown.

98. How well can LSST measure neutrino masses?

Aravind Natarajan

05/05/2014, 15:30

We show that baryonic effects can modify the matter power spectrum on small scales. These effects cause a damping in the matter power spectrum on intermediate scales due to thermal pressure, and a boost on very small scales due to adiabatic contraction of the halo. We compute the weak lensing shear power spectrum in the presence of baryonic feedback obtained from the OWLS simulation suite. We...

115. Right-Handed Neutrinos as the Origin of Fundamental Mass Scales

Ian Lewis (Brookhaven National Laboratory)

05/05/2014, 15:45

Starting from a scale-free electroweak sector at tree-level, we postulate that quantum effects of heavy right-handed neutrinos induce a mass term for a scalar weak doublet that contains the dark matter particle. In turn, below the scale of heavy neutrinos, the dark matter sector sets the scale of the Higgs potential. We show that this framework can lead to a Higgs mass that respects physical...