Young Researchers Meeting In Rome 2012

Session

Session - I : Theoretical and Particle Physics

20 Jan 2012, 09:20

Aula Grassano - Dipartimento di Fisica - Università degli Studi di Roma

1. Vacua of Maximal Supergravity and the cosmological constant

20/01/2012, 09:20

I will discuss recent developments in the construction of supergravity models in four dimensions with gauge interactions and in the identification of their vacua. The issue of stability of these solutions will be addressed and a link between gauge interactions and allowed values of the cosmological constant will be discussed. I will also outline an interesting structure that arises among the...

2. Extra U(1) and Asymmetry

20/01/2012, 09:40

Among the possible beyond the standard model (BSM) physics extra neutral gauge Z's are theoretically one of the well motivated. The measurement of the asymmetry at the LHC has been showed to be very important to detect this Z's and to point out some of their properties. We have calculated the asymmetry at the LHC for a model in which the MSSM is extended by an extra U(1) gauge symmetry...

3. A Model Independent General Search for New Physics in ATLAS

20/01/2012, 10:00

The start of the Large Hadron Collider in 2009 has opened a new window for high energy physics. It is expected to provide answers to some of the long-standing questions in particle physics; namely the details of the electroweak symmetry breaking mechanism in the Standard Model, and the possibility of new and exotic physics at the TeV-scale. In this talk preliminary results of a novel model...

4. Measurement of Z-boson forward-backward asymmetry in the muon channel with the ATLAS experiment at the LHC

20/01/2012, 10:20

The V-A nature of the electroweak current leads to an asymmetry in the lepton polar angle distribution in the rest frame of Z/γ* boson: the measurement of such a quantity, around the Z pole, can provide a precise determination of the weak mixing angle of the Standard Model. In this contribution, the asymmetry measurement in the muon channel will be presented with data collected with the ATLAS...