Invisibles 14 Workshop

Session

Poster presentation

15 juil. 2014, 17:30

Institut des Cordeliers

52. Dark matter goes social: Impact on structure formation

Jascha Schewtschenko

15/07/2014 17:30

We present our results studying the impact of DM‐photon and DM‐neutrino interactionsonthestructureformationinthelateUniversepotentiallysolving several problems of CDM and constraining the possible interaction strength. Based on work done with Jascha A. Schewtschen ko, Ryan Wilkinson, Celine Boehm, Silvia Pascoli, Carlton Baugh arXiv:1310.8214 (and others still in preparation)

57. Determination of mass attenuation coefficient, effective atomic number and effective electron density for zirconium borohydride and zirconium hydride

Selmi AZZA

15/07/2014 17:30

The effective atomic numbers ( ) and effective electron density ( ) of shielding materials such as borohybride zirconium and hybride zirconium have been calculated using the mass attenuation coefficients ( ) obtained via WinXCOM program at the photon energy range of 1 keV‐100 GeV. This work is concerned also with a calculation of macroscopic fast neutron removal cross‐sections ( ).The main...

53. Durham Augmented Research Outreach (DARO) project

Jascha Schewtschenko

15/07/2014 17:30

The DARO project is an attempt to improve scientific posters (and outreach material)byembeddingadditionaldigitalinformations(movies,interactive graphs, 3D models). See icc.dur.ac.uk/~daro

47. Explaining CoGeNT and DAMA with backgrounds

Jonathan Davis

15/07/2014 17:30

The CoGeNT and DAMA/LIBRA collaborations both claim possible evidence for light Dark Matter scattering in their detectors. For the former this is in the form of a low‐energy excess and for the latter an approximately 9.3 sigma evidence for an annual modulation. However the Dark Matter parameters favoured by these experiments are in tension with searches from e.g. LUX, XENON100 and SuperCDMS....

54. Indirect detection of dark matter signatures at INO

Deepak Tiwari

15/07/2014 17:30

Weakly Interactive Massive Particles (WIMPs) are among the most favored dark n/a matter candidates. Their capture and subsequent annihilation at the center of Sun/ Earth may give rise to neutrinos, through various annihilation channels.We look at the possibility of detection of such neutrinos at INO (India‐Based Neutrino Observatory), which will house 50‐kt Iron Calorimeter (ICAL). With the...

50. Isospin-violating dark matter with colored mediators

Seng Pei Liew

15/07/2014 17:30

In light of positive signals reported by the CDMS‐II Si experiment and the recent results of the LUX and SuperCDMS experiments, we study isospin‐violating dark matter scenarios assuming that the interaction of the dark matter is mediated by colored particles. We investigate the phenomenology of the model, including collider searches, flavor and CP phenomenology. A minimal possible scenario...

51. Minimal theory for lepto-baryons and low scale unification

Sebastian Ohmer

15/07/2014 17:30

We define the simplest anomaly‐free theory where baryon and lepton numbers are defined as local symmetries spontaneously broken at the low scale which predicts the existence of lepto‐baryons. In this context it is possible to unify the Standard Model gauge interactions at the low scale in four dimensions in agreement with experiments. The cosmological implications and the possibility of...

56. On the renormalization of the electroweak chiral Lagrangian

Pedro Machado, Sara Saa Espina

15/07/2014 17:30

We deal here with the off‐shell renormalization of the chiral effective Lagrangian for physics beyond the Standard Model, based on a non‐linear realization of the $SU(2)_L\times U(1)_Y$ gauge symmetry breaking in the presence of a light Higgs particle, up to four derivatives. We consider the full would‐be Goldstone bosons and Higgs sector of the Lagrangian. All one loop amplitudes are computed...

55. Ordered anarchy from a 5D SO(10)

Denise Vicino

15/07/2014 17:30

mechanism to generate flavour hierarchy via 5D wave‐function localization is revisited in the context of SO(10) grand unified theory. An extra‐dimension compactified on an orbifold together with SO(10) breaking generates different zero‐mode profiles for fermions of different charges. Utilizing suitable scalar fields, a predictive model for fermion masses and mixing is constructed and shown to...

48. Search for a 4th neutrino with CeSOX

Mathieu Durero

15/07/2014 17:30

The CeSOX project aims at testing the reactor antineutrino and Gallium anomalies, which can be interpreted as oscillations of active neutrinos toward a fourth (sterile) neutrino species in the very short baseline regime. The CeSOX experimental concept consists in deploying an intense (3‐5 PBq) radioactive antineutrino source made of 144 Cerium, in the vicinity of the Borexino detector located...

49. Supernova neutrinos

Jessica Elevant

15/07/2014 17:30

During a core collapse supernova, a vast amount of neutrinos are emitted from inside the supernova core. The high neutrino density allow for neutrino self interactions which affect the neutrino oscillations in a measurable way. This poster presents the general oscillatory behaviour of neutrinos propagating through a core collapse supernova pointing out certain specific effects due to self...