Fiorella Fionda
(Università degli studi di Bari)
27/04/2011, 16:20
Dottorandi e Posters
J/ψ can be measured in the ALICE experiment at central rapidity through the dielectron channel (J/ψ→e+e-), reaching pT=0. In this contribution we report a first result obtained concerning the analysis of J/ψ production in pp collisions at √s =7 TeV in the rapidity range |y|<0.9 and discuss the possibility to separate prompt and secondary J/ψ coming from b-hadrons decays. We also give the...
Isabella Garzia
(INFN Ferrara)
27/04/2011, 16:30
Dottorandi e Posters
Transversity Distribution, which describes the quark transverse polariza- tion inside a transversely polarized nucleon, is the last leading-twist miss- ing piece of the QCD description of the partonic structure of the nucleon. Transversity can be extracted from semi-inclusive deep inelastic scattering data, where it couples to a new, unknown fragmentation function, called Collins function. We...
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Chiara Sabelli
(Dipartimento di fisica Sapienza & INFN Roma)
27/04/2011, 16:40
Dottorandi e Posters
I will discuss the state of the art on the exotic charmed mesons (XYZ) discovered since 2003, which do not fit in the standard ccbar spectrum. I will revise the clues that have been collected on their internal structure starting from the experimental information available on their production and decay mechanisms. Finally I will consider some processes in which XYZ could pay a role as...
Antonio Cassese
(FI)
27/04/2011, 16:50
Dottorandi e Posters
The NA62 experiment is designed to measure the very rare kaon dacay K+→pi+νν at the CERN SPS with a 10% accuracy. The Standard Model prediction for the branching ratio is (8.5±0.7)×10-11. One of the challenging aspect of the experiment is the suppression of the K+→μ+νμ background at the 10-12 level. To satisfy this requirement a Ring Imaging Cherenkov Detector (RICH), able to separate pi± from...
Federico Sforza
(Università degli studi di Pisa)
27/04/2011, 17:00
Dottorandi e Posters
Stefano Gallorini
(Università degli studi di Pisa)
27/04/2011, 17:10
Dottorandi e Posters
The rare decays K -- > pi nu nubar are excellent processes to study the physics of flavour. Thanks to the GIM suppression, these decays give precision tests of the Standard Model and constraints for models of New Physics.
The collaboration of the NA62 experiment at the CERN SPS aims to collect O(100) K+ --> pi+ nu nubar events in about 2 years of data taking to extract a 10% measurement of...
Damiano Tommasini
(Universita degli Studi di Firenze & INFN sez. Firenze)
27/04/2011, 17:20
Dottorandi e Posters
One of the main goals of high-energy colliders is the discovery of the Higgs boson and the study of its properties, either in the Standard Model or in its possible extensions. Among the various kinematical distributions, a major role is played by the transverse-momentum (q_T) spectrum of the Higgs boson. We present a calculation of this distribution that uniformly combines small-q_T...
Agata Trovato
(LNS)
27/04/2011, 17:30
Dottorandi e Posters
Presentazione
The observation of extraterrestrial high-energy neutrinos will provide unique piece of information on the most violent and highest energy processes in our Galaxy and far beyond. Indeed, their measurement will allow for new insights into the acceleration mechanisms and their localization in galactic and extragalactic sources, clarifying the role of the hadronic component. KM3NeT is an...
