Seminars
Seminars

Theory Seminars

Pizza Seminars

## SEMINAR: Radion-Dilaton/Higgs in light of the LHC

Friday April 4 2014, 2:30pm - Seminar room

Speaker: Anibal Medina (University of Melbourne)

Abstract:

Motivated by the bulk mixing $\xi R_5 H^{\dagger}H$ between a massive radion and a bulk scalar Higgs in warped extra dimensions, we construct an effective four dimensional action that---via the $AdS/CFT$ correspondence---describes the most general mixing between the only light states in the theory, the dilaton and the Higgs.

## SEMINAR: Massive gravity and extensions

Friday March 28 2014, 2:30pm -  Seminar room

Speaker: David Pirtskhalava (Scuola Normale Superiore,Pisa)

Abstract:

A unique linear theory describing a free massive spin-2 representation of the Poincare group - Fierz-Pauli model - has proven to be extremely hard to generalize at the nonlinear level, without violating its consistency.

## SEMINAR: Inflation, BICEP2, and an interesting discrepancy with Planck

Thursday March 27 2014, 12:00pm -  Seminar room

Speaker: Prof. Lorenzo Sorbo (U.Mass Amherst & TPT-CEA Paris)

Abstract: The BICEP2 collaboration has reported a strong B mode signal in the CMB polarization, which is well fit by a tensor-to-scalar ratio of r ~ 0.2.

## SEMINAR: Mathematica on the Road

Friday March 21 2014, 10:00am - 3:00pm -  Sala de Graus II  (C5/1068)

Mathematica On the Road" one-hour sessions delivered at your campus are your chance to learn all about Mathematica and the basics of how to use it.

## SEMINAR: On the non-linear scale of cosmological perturbation theory

Thursday March 20 2014, 2:40pm - Seminar room

Speaker: Thomas Konstandin (DESY)

Abstract:

I discuss the use of perturbative methods to study the evolution of matter fluctuations in the context of large scale structure formation.

## SEMINAR: Backreaction in extended theories of gravity

Friday March 14 2014, 2:30pm -  Seminar room

Speaker: Alvaro de la Cruz Dombriz (UCM)

Abstract: One possible explanation for the present observed acceleration of the Universe is the breakdown of homogeneity and isotropy due to the formation of non-linear structures.

## SEMINAR: Non-relativistic particles in a thermal bath

Friday March 7 2014, 2:30pm -  Seminar room

Speaker: Antonio Vairo (Munich Tech. U)

Abstract:Heavy particles provide an ideal window for new physics and new phenomena. Since the late eighties they are treated by means of effective field theories that fully exploit the symmetries and power counting typical of non-relativistic systems.

## SEMINAR: Summary of CMS results in the first 3 LHC years

Monday March 3, 12:00pm -  Seminar room

Speaker: David d'Enterria (CERN)

Abstract: A selection of the most significant results in QCD, electroweak, flavour, Higgs, and Beyond Standard Model physics collected during the first three years of operation of the CMS experiment at the CERN LHC will be presented.

## Imprints of the Standard Model in the Sky

Friday February 21 2014, 2:30pm - Seminar room

Speaker: Daniel Figueroa (U de Geneve)

Abstract: The existence of the Standard Model (SM) Higgs implies that a gravitational wave (GW) background is generated by the decay products of the Higgs, soon after the end of inflation.

## SEMINAR: Signatures of the inert doublet dark matter model

Friday January 24 2014, 2:30pm

Speaker: Alejandro Ibarra (Munich Tech. U)

Abstract : The inert doublet model is a minimal extension of the Standard Model which accounts for the dark matter of the Universe and which consists in introducing one extra scalar field, odd under an unbroken Z2 symmetry, with identical gauge quantum number as the Standard Model Higgs.

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