Prof.
Caterina Petrillo
(Dipartimento di Fisica), Dr
Catiuscia Marini
(Regione Umbria), Prof.
Fausto Elisei
(Facoltà di Scienze), Prof.
Francesco Bistoni
(Università di Perugia),
Pasquale Lubrano
(PG)
27/04/2011, 09:00
Presentazione su invito
Talk di benvenuto da parte del
Dott. Catiuscia Marini (Presidente della Regione Umbria),
Prof. Francesco Bistoni (Magnifico Rettore dell'Università di Perugia),
Prof. Fausto Elisei (Preside della Facoltà di Scienze),
Prof. Caterina Petrillo (Direttore dipartimento Fisica ),
Dott. Pasquale Lubrano (Direttore della Sezione INFN di Perugia)
Sergio Bertolucci
(LNF)
27/04/2011, 09:25
Massimiliano Grazzini
(FI)
27/04/2011, 09:45
Paride Paradisi
(TU of Munich)
27/04/2011, 10:05
Dr
Roberto Covarelli
(Univ. INFN Perugia)
27/04/2011, 11:05
The analysis of data collected by the CMS experiment in 2010 (equivalent to an integrated luminosity of 40 pb-1) has yielded several physics results concerning the production mechanisms of heavy flavors at the unprecedented center-of-mass energy of 7 TeV.
Recostruction techniques of heavy-flavored particles will be shown, with particular focus on the triggers expressly designed to select...
Walter Bonivento
(CA)
27/04/2011, 11:25
Dr
Cecilia Tarantino
(Rome University, "Roma Tre")
27/04/2011, 11:45
I review the status of the theoretical predictions in the Heavy Flavor Sector.
I focus on the observables of interest for new and next future experiments, discussing both perturbative and non-perturbative uncertainties.
Elisa Manoni
(INFN Perugia)
27/04/2011, 12:05
We present some of the most recent results from the analysis of the full dataset collected by the BaBar experiment. They include searches for rare decays in the charm sector, the latest news from the bottomonium spettroscopy and from the analysis of the data sample collected above the Y(4S) mass.
Dr
Michael Morello
(INFN and Univ. di Pisa)
27/04/2011, 12:25
Francesco Forti
(PI)
27/04/2011, 12:45
Gianluca Cavoto
(ROMA1)
27/04/2011, 14:05
Nuove Tecnologie
Hadron collider collimation is now a big challenge in view of the future increase of beam currents at LHC. A description of the UA9 experiment at CERN SPS is reported. Its main aim is to demonstrate the feasibility of a new concept of collimation based on a bent crystal able to clean the dangerous beam halo via the crystal channeling effect. Data from tests performed on SPS will be...
Fulvio Tessarotto
(TS)
27/04/2011, 14:20
Nuove Tecnologie
Vincenzo Patera
(LNF)
27/04/2011, 14:35
Nuove Tecnologie
Maurizio Serluca
(Università degli studi Roma III)
27/04/2011, 14:50
Nuove Tecnologie
The SPARC project is a Free Electron Laser (FEL) at the LNF, Frascati (Italy). It is also the test and training facility for the VUV/soft X-ray FEL project named SPARX. The SPARC FEL is composed by a high brightness photo-injector providing a high-quality electron beam at energies up to 150-200 MeV and an undulator beam line composed by six magnetic undulator sections with variable gap.
The...
Michele Cascella
(PI)
27/04/2011, 15:05
Nuove Tecnologie
Valentina Sola
(TO)
27/04/2011, 15:30
Dottorandi e Posters
A combination is presented of the inclusive diffractive cross section measurements made by the H1 and ZEUS collaborations at HERA. The analysis uses all available diffractive deep inelastic scattering data, ep -> eXp, recorded between 1997 and 2007 and selected with the Large Rapidity Gap technique. Correlations of systematic uncertainties are taken into account by the combination method,...
Stefano Perazzini
(BO)
27/04/2011, 15:40
Dottorandi e Posters
The LHCb experiment is designed to perform flavour physics measurements at the Large Hadron Collider. Using data collected during the 2010 run, we reconstructed a sample of Hb --> h+h'- decays, where Hb can be either a B0 meson, a Bs0 meson or a Lambda_b baryon, while h and h? stand for pi, K or p. Such decays are sensitive probes of the Cabibbo-Kobayashi-Maskawa matrix and have the potential...
Giordano Cattani
(ROMA2)
27/04/2011, 15:50
Dottorandi e Posters
The V-A nature of the electroweak current leads to an asymmetry in the polar angle distribution in the rest frame of Z/gamma*: the measurement of such a quantity, around 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 the data collected by the ATLAS experiment...
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...
Ms
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...
Antonio Stamerra
(SI)
27/04/2011, 18:00
Fisica Astroparticellare
A major boost in the cosmic ray (CR) studies came in the last decades from the experimental effort to investigate the extreme energy region >1 EeV (UHE) of the CR spectrum and the nature of the astrophysical sources responsible for the CR acceleration.
The AUGER observatory provided a clear indication of the attenuation of the CR flux by the GZK effect and yielded puzzling results on the...
Stefano Germani
(PG)
27/04/2011, 18:20
Fisica Astroparticellare
The last generation of high energy gamma-ray and cosmic-ray space experiments are providing an unprecedented view of the high energy universe allowing continuous progresses in the understanding of astroparticle physics. The main results and future perspectives for Agile, Fermi and Pamela space experiments are presented.
Massimiliano Uslenghi
(INFN Pavia)
27/04/2011, 19:20
Dottorandi e Posters
The signature characterized by 2 leptons and missing energy offers a very promising venue for the discovery and measurement of Supersymmetry at the LHC.
We present the results of an analysis based on this signature, performed with the data collected in 2010 by the ATLAS experiment.
Special emphasis is given to a technique called 'flavour subtraction', which allows a good control of the...
Nicola Orlando
(INFN Lecce)
27/04/2011, 19:21
Charmonium studies at hadronic colliders are of interest for probing the still unclear production mechanisms and testing the various theoretical models. The large statistics of J/Psi recorded by the ATLAS detector allows for differential cross section measurements, potentially sensitive to the dominant production processes. The 2010 proton-proton ATLAS data have been used to measure the...
Fabio Colamaria
(INFN Bari)
27/04/2011, 19:22
Dottorandi e Posters
Andrea Agostinelli
(BO)
27/04/2011, 19:23
Dottorandi e Posters
The performance of the ALICE Time Of Flight detector (TOF) are presented, based on the 2010 data taking. Hardware status, efficiency, time resolution and PID capability are shown and compared with the design values. First results both in p+p (0.9 and 7 TeV) and Pb+Pb (2.76 TeV) are reported.
Susanna Costanza
(PV)
27/04/2011, 19:25
Dottorandi e Posters
Significant progresses in fundamental questions of hadronic and nuclear physics could be attained by the PANDA experiment, that will be installed at the international FAIR facility in the site of the GSI laboratory (Darmstadt, Germany). Taking advantage of the physics potential available using the highintensity, phasespace cooled antiproton beams provided by the highenergy storage ring...
Stefano Davini
(INFN Genova)
27/04/2011, 19:26
L'esperimento Borexino e' in presa dati da maggio 2007 ed e' l'unico esperimento in grado di misurare in tempo reale il flusso di neutrini solari di bassa energia (MeV o inferiore al MeV). Recentemente ha realizzato la misura del flusso dei neutrini del Be7 con elevata precisione (5%), migliorando sensibilmente l'accuratezza della misura gia' pubblicata da Borexino stesso.
Nella presentazione...
Patrizia Barria
(SI)
27/04/2011, 19:27
Cesare Calabria
(BA)
27/04/2011, 19:28
Dottorandi e Posters
The first measurement of the Z -> tautau cross-section in the mu-taujet, e-taujet, e-mu and mu-mu final states is presented. The data collected in 2010 with the CMS detector from proton-proton collisions at √s = 7 TeV are used, corresponding to an integrated luminosity of about 36 pb-1. The cross section has been measured to be in good agreement with the next-to-next-to- leading order QCD...
Mr
Luca Perrozzi
(Università di Padova)
27/04/2011, 19:30
Dottorandi e Posters
Bose-Einstein correlations between identical particles are measured in samples of proton-proton collisions at 0.9 and 7 TeV centre-of-mass energies, recorded by the CMS experiment at the LHC. The signal is observed in the form of an enhancement of number of pairs of same-sign charged particles with small relative momentum. The dependence of this enhancement on kinematic and topological...
Roberta Volpe
(INFN Perugia)
27/04/2011, 19:31
Dottorandi e Posters
The results of searches for new physics in events with two same-sign isolated leptons, hadronic jets, and missing transverse energy in the final state are presented. The searches use an integrated luminosity of 35/pb of pp collision data at a centre-of-mass energy of 7 TeV collected by the CMS experiment at the LHC. The observed numbers of events agree with the standard model predictions, and...
Mr
andrea lucaroni
(Universita' degli Studi di Perugia &amp; INFN)
27/04/2011, 19:32
Dottorandi e Posters
First measurement of the underlying activity in proton-proton collisions at √s =7TeV compared with 900 GeV is presented, using data collected by the CMS experiment at the LHC in 2009/2010. The Multiple Parton Interaction rate, the main component of the Underlying Event activity, and its energy dependence is studied measuring the charged multiplicity and the charged energy density in a region...
Vito Antonelli
(Universita' degli Studi di Milano)
27/04/2011, 19:33
Dottorandi e Posters
Very high intensity accelerator neutrino beams are becoming available. Designed for experiments investigating neutrino mixing and leptonic CP violation, the will offer, at the same time, the opportunity to perform precision tests of the Standard Model and extract values of the parameters (Weinberg angle) in the medium and low energy region, checking the consistency with the high energy data...
Dr
Dario Nicolosi
(INFN-LNS)
27/04/2011, 19:34
Dottorandi e Posters
Simone Brazzale
(Università di Udine)
27/04/2011, 19:35
Dottorandi e Posters
The production of W-bosons in pp-collisions is charge symmetric. At the LHC the asymmetry is theoretically very well predicted and can be used as an input to the measurement of the production cross-section of W-bosons in association with other particles for final states in which the contribution from other processes is largely charge symmetric. We describe the use of this method to measure...
Antonio Policicchio
(CS)
27/04/2011, 19:36
Dottorandi e Posters
A number of extensions of the Standard Model result in neutral and weakly-coupled particles that decay to multi hadrons or multi leptons with macroscopic decay lengths. These particles with decay paths that can be comparable with ATLAS detector dimensions represent, from an experimental point of view, a challenge both for the trigger and for the reconstruction capabilities of the ATLAS...
Alberto Mengarelli
(BO)
27/04/2011, 19:37
Dottorandi e Posters
In questo report verra' presentata la misura della sezione durto inclusiva di produzione del bosone Z osservato bel canale di decadimento in due elettroni ad una energia pari a sqrt(s) = 7 TeV in collisioni protone-protone. La misura e' stata effettuata con i dati raccolti dall'esperimento ATLAS ad LHC corrispondenti ad una luminosita' integrata di circa 34 pb-1.
Michele Cascella
(PI)
27/04/2011, 19:38
Dottorandi e Posters
Angela Romano
(University of Birmingham)
27/04/2011, 19:39
Dottorandi e Posters
The NA62 experiment at the CERN SPS aims to collect about 100 events of the ultra rare Kaon decay K+ → π+ ννbar, with a Signal to Background (S/B) ratio of 10:1. The main purpose is the measurement of the Branching Ratio of the decay with a 10% accuracy. NA62 will use an unseparated charged beam with Kaon decays in flight technique. Pions and protons cannot be separated efficiently from Kaons...
Mr
Kristian Piscicchia
(LNF INFN)
27/04/2011, 19:40
Dottorandi e Posters
The AMADEUS experiment aims to perform dedicated precision studies in the sec- tor of low-energy kaon-nuclei interaction at the DAΦNE collider at LNF-INFN. In particular, the experiment plans to perform measurements of the so-called (very debated) deeply bound kaonic nuclei and, if existent, to measure their properties (binding energies and widths) by using the process of stopped kaons in...
Stefano Takekawa
(INFN Torino)
27/04/2011, 19:45
Il processo Drell-Yan puo' essere utilizzato per avere accesso alle funzioni di struttura del nucleone dipendenti dal momento trasverso dei partoni (TMD PDF), come le funzioni di Boer-Mulders, di Sivers e la funzione di trasversita'. Le informazioni, ottenute dallo studio di eventi Drell-Yan, permettono un confronto con le evidenze provenienti da esperimenti di diffusione profondamente...
Irene BOLOGNINO
(PhD student)
27/04/2011, 19:46
ARGO-YBJ is an extensive air shower detector located at the Yangbajing Cosmic Ray Laboratory (Tibet, China) at 4300 m a.s.l. IT is made by a full coverage carpet plus a guard ring (total surface ~6700 m2) of Resistive Plate Chambers grouped into 153 units called "clusters". The experiment has continually worked since November 2007 recording events with an energy threshold of ~ 300GeVs and with...
Dr
Catalina Oana Petrascu
(INFN - Laboratori Nazionali di Frascati)
28/04/2011, 08:30
Two experiments, SIDDHARTA and AMADEUS, performing low-energy kaon-nucleon/nuclei interaction studies at the best low-energy kaon beam in the world, the DAFNE collider, will be presented.
The SIDDHARTA experiment, running at the DAFNE collider in 2009, took the best world's data on kaonic hydrogen (shift and width of 1s level induced by the presence of the strong interaction) and the first...
Paolo Maria Montagna
(PV)
28/04/2011, 08:50
QCD
The new Facility for Antiproton and Ion Research (FAIR), under construction at the GSI laboratory at Darmstadt, in a few years will make available primary beams of ions, from hydrogen to uranium, and secondary beams of radioactive ions and antiproton with unique features.
In the large research areas opened by this new center (from atomic to plasma physics, to the study of nuclear matter up to...
Eugenio Paoloni
(PI)
28/04/2011, 09:30
Nuove Tecnologie
Luca Serafini
(MI)
28/04/2011, 09:45
Nuove Tecnologie
Valeria Sipala
(CT)
28/04/2011, 10:00
Nuove Tecnologie
Alessandro De Salvo
(ROMA1)
28/04/2011, 10:15
Nuove Tecnologie
Federica Sozzi
(Università degli studi di Trieste)
28/04/2011, 11:10
QCD
COMPASS is a fixed target experiment at the CERN SPS.
The COMPASS physics programme is dedicated to the study of the nucleon spin structure and of hadron spectroscopy. The nucleon spin structure is investigated by means of Deep Inelastic Scattering reactions, using a 160GeV muon beam, impinging on a solid state target. The recent results on the gluon contribution to the nucleon spin, on the...
Leonardo Carminati
(MI)
28/04/2011, 11:30
QCD
Verra discussa una misura della sezione d'urto per la produzione inclusiva di fotoni diretti isolati , basata su 880nb-1. La misura copre i range di pseudorapidita' |eta| < 1.37 e 1.52 |eta | < 1.81 per energie trasverse 15 < ET < 100 GeV. I risultati sono confrontati con predizioni di calcoli di QCD perturbativa a NLO. Inoltre saranno presentati i risultati preliminari per il canale a 2...
Dr
Monica Turcato
(Hamburg University)
28/04/2011, 12:10
QCD
Prof.
Egle Tomasi-Gustafsson
(IPN Orsay)
28/04/2011, 12:50
QCD
The study of electromagnetic nucleon form factors is object of
experimental and theoretical studies since decades. At moderate
values of the momentum transfer squared, q^2, the individual
determination of the electric and magnetic FFs strongly constrain
the nucleon models, whereas at larger q^2 the validity of analyticity
and of the asymptotic properties predicted by QCD can be...
Giorgio Chiarelli
(PI)
28/04/2011, 14:10
Dr
Michele Pioppi
(Imperial College London)
28/04/2011, 14:30
Fisica del Modello Standard ed oltre
The cascade decay of heavy supersymmetric particles is expected to produce energetic jets, missing transverse momentum and leptons. A selection of the search strategies employed in CMS are described and the results obtained with the 35/pb of data recorded in 2010 are presented.
Dr
matteo palutan
(INFN/LNF)
28/04/2011, 14:50
Fisica del Modello Standard ed oltre
Diego Guadagnoli
(LPT Orsay)
28/04/2011, 15:10
Fisica del Modello Standard ed oltre
Dr
Riccardo Di Sipio
(Università di Bologna)
28/04/2011, 15:30
Fisica del Modello Standard ed oltre
Top quark pair production in pp collisions has been measured at a center of mass energy of 7 TeV using 36.6 pb-1 of data recorded in 2010 by the ATLAS experiment at the LHC. A cut based analysis was applied to select events containing exactly one energetic charged lepton, large missing transverse energy compatible with the presence of an undetected neutrino and four jets, of which at least one...
Mr
Ivan Prado Longhi
(Università degli Studi "Roma Tre" and Sezione INFN "Roma Tre")
28/04/2011, 16:10
Dottorandi e Posters
Alessia Manazza
(Università degli studi di Pavia)
28/04/2011, 16:30
Per il progetto del Layer0 del rivelatore di vertice (Silicon Vertex Tracker, SVT) di SuperB, cioè lo strato di rivelazione più vicino al punto di interazione dei fasci, sono state proposte tre soluzioni differenti: rivelatori a striscia di ridotta lunghezza (striplets), sensori a pixel ibridi e pixel monolitici attivi (Monolithic Active Pixel Sensors, MAPS) in tecnologia CMOS. I rivelatori a...
Mrs
Silvia Martellotti
(INFN)
28/04/2011, 16:40
Dottorandi e Posters
Ms
Maddalena Frosini
(INFN sez. Firenze)
28/04/2011, 16:50
Dottorandi e Posters
Despite the large experimental and theoretical efforts, the J/psi production rate and states in hadronic collisions are not yet satisfactorily understood. The comparison between the measured J/psi differential cross section with the most recent theoretical models shows a general good agreement but the cross section alone is not sufficient to discriminate between the different models proposed...
Valerio Ippolito
(ROMA1)
28/04/2011, 17:00
Dottorandi e Posters
W and Z boson production has been investigated by the ATLAS Collaboration in proton-proton collisions at sqrt(s) = 7 TeV. New preliminary precision measurements of the inclusive Dell-Yan cross sections based on the complete data statistics collected in 2010, corresponding to a luminosity of about 35 pb-1, are presented with particular emphasis on the muon decay channels. The accurate control...
Barbara Guerzoni
(BO)
28/04/2011, 17:10
Dottorandi e Posters
The ALICE detector collected collisions at LHC at 0.9 and 7.0 TeV c.m.s. with proton-proton and at 2.76 TeV with Lead-Lead. ALICE, compared with other LHC experiments, has several detectors with Particle IDentification (PID) capabilities. Physics results involving PID will be presented both for pp and Pb-Pb interactions, with special emphasis on the Time-Of-Flight (TOF) analysis.
Pietro Biassoni
(MI)
28/04/2011, 17:20
Dottorandi e Posters
Lo studio della spettroscopia del charmonio ha ricevuto importanti contributi dai risultati delle B-factories BaBar e Belle. Nell'ambito della spettroscopia del charmonio convenzionale, uno dei maggiori successi e' stata la scoperta e la misura delle proprieta' della eta_c(2S). Nonostante questo stato sia stato osservato da diversi anni, le sue caratteristiche sono ancora poco conosciute....
Gianluca Blankenburg
(Università degli studi Roma III)
28/04/2011, 17:30
Dottorandi e Posters
Recently SO(10) models with type-II see-saw dominance have been proposed as a promising framework for obtaining Grand Unification theories with approximate Tri- bimaximal (TB) mixing in the neutrino sector. We make a general study of SO(10) models with type-II see-saw dominance and show that an excellent fit can be obtained for fermion masses and mixings, also including the neutrino sector. To...
Natascia Vignaroli
(ROMA1)
28/04/2011, 17:40
Dottorandi e Posters
We performed a study of the LHC discovery reach on composite fermions (top and bottom Kaluza- Klein's) and composite gluon (KKg). We found that the KKg phenomenology is strongly dependent on the ratio between its mass and those of the heavy fermion resonances. When the KKg is below the threshold for the production of a heavy fermion, KKg decays almost completely to top pairs. Until now, this...
Mr
Ennio Salvioni
(Università di Padova)
28/04/2011, 17:50
Dottorandi e Posters
We study, within an effective approach, the phenomenology of a charged W' vector which transforms as an isosinglet under the Standard Model gauge group. We discuss bounds from present data, finding that these are quite weak for suitable choices of the right-handed quark mixing matrix. Then we study the resonant production at the early LHC of such a weakly constrained W'. We start discussing...
Tommaso Lari
(MI)
28/04/2011, 18:00
Fisica del Modello Standard ed oltre
Questo talk presenta le prime ricerche di particelle supersimmetriche nei dati raccolti nel 2010 dall'esperimento ATLAS a LHC, in collisione protone protone a sqrt(s)=7 TeV. Le ricerche sono state eseguite in vari canali. La sensitivita' di questi risultati alla produzione di squarks e gluini sorpassa di molto quella di altri esperimenti ai colliders. Inoltre, verranno riportate le ricerche di...
Mia Tosi
(PD)
28/04/2011, 18:20
Fisica del Modello Standard ed oltre
In supersymmetric theories scenarios, the production of neutral Higgs scalars or pseudoscalar particles and their following decay to pairs of tau leptons or b-quarks is greatly enhanced for a large part of the parameters space of the theory, not yet excluded by previous experiments. Preliminary results of the search of this states performed by the CMS experiment at the LHC on the data...
Vito Palladino
(NA)
28/04/2011, 18:40
Fisica del Modello Standard ed oltre
NA62 is a fixed-target experiment located in the CERN experimental North Area. The beam is provided by SPS. During the first phase (2007->2010) the collaboration measured the ratio R_K = BR(K->e nu)/BR(K->mu nu). This measurement is sensitive to Standard Model (SM) deviations; in particular it can test lepton universality. The measurement was published in February 2011. During the second...
Giovanni Gallucci
(PI)
28/04/2011, 19:00
Fisica del Modello Standard ed oltre
Dr
Leone Battista Bosi
(INFN PG)
29/04/2011, 08:30
Nuove Tecnologie
Currently, technological solutions being adopted by more manufacturers are bringing to CPU architecture with an even more degree of parallelism, evolving from the multi-core era to the "many-core" era. In this scenario hundreds and, in short, thousands of processing cores, are contained within the same processor. A so deep change in architectural paradigm compels an equally deep change in...
Lodovico Ratti
(PV)
29/04/2011, 08:45
Nuove Tecnologie
Cristina Tuve'
(CT)
29/04/2011, 09:00
Nuove Tecnologie
Diamond was studied as a possible radiation hard technology for use in future high radiation environments. With LHC upgrades expected, all LHC experiments are planning for detector upgrades which require radiation hard technologies. Chemical Vapor Deposition (CVD) diamond has now been used extensively in beam conditions monitors as the innermost detectors in the highest radiation areas of...
Paolo De Remigis
(TO)
29/04/2011, 09:15
Nuove Tecnologie
Dr
Carlo Giunti
(INFN)
29/04/2011, 09:30
Fisica dei neutrini
Francesco Terranova
(LNF)
29/04/2011, 09:50
Francesco Simeone
(RM1)
29/04/2011, 10:10
Fisica dei neutrini
In recent years the astro-particle community is involved in the realization of experimental apparatuses for the detection of high energy neutrinos originated in cosmic sources or produced in the interaction of Cosmic Rays with the Cosmic Microwave Background. For neutrino energies in the TeV-PeV range, the optical Ĉerenkov technique is considered optimal. Water (or Ice)-Ĉerenkov technique is...
Marisa Pedretti
(MI)
29/04/2011, 10:30
Fisica dei neutrini
Domenico Elia
(BA)
29/04/2011, 11:10
Ioni Pesanti
After a brief historical introduction to the aims of the heavy-ion physics and the main lessons from experiments at SPS and RHIC, the contribution deals with the recent results from the first PbPb run at LHC and the nearest future perspectives.
Chiara Zampolli
(INFN - sezione di Bologna)
29/04/2011, 11:30
Ioni Pesanti
Marzio De Napoli
(Università degli studi di Catania)
29/04/2011, 11:50
Ioni Pesanti
Stefano Di Falco
(PI)
29/04/2011, 13:35
Fisica Astroparticellare
MARCO SALVATORE La Cognata
(LNS)
29/04/2011, 13:55
Fisica Astroparticellare
To understand the physical phenomena occurring in the Universe, including the evolution of stars, e.g. the sun, and the most pectacular events such as the supernovae explosion, an xhaustive knowledge of nuclear and particle physics is mandatory since these phenomena are powered by the interaction among the basic constituents of the matter. Nuclear astrophysics deals with the study of...
Lorenzo Bonechi
(FI)
29/04/2011, 14:15
Fisica Astroparticellare
Stefania Vecchi
(FE)
29/04/2011, 14:35
Elisa Manoni
(PG)
29/04/2011, 15:15
We present the current experimental status and the perspectives at SuperB on searches for rare B decays with missing energy in the final state. Experimental improvements due to the detector design will be illustrated. The expected constraints on parameters entering New Physics models will also be discussed.
Paola Garosi
(PI)
29/04/2011, 15:55
Dottorandi e Posters
Leonardo Di Matteo
(MIB)
29/04/2011, 16:05
Dottorandi e Posters
The operation and performance of the CMS electromagnetic calorimeter (ECAL) during the 2010 run at the LHC, with pp collisions at √s =7 TeV will be reviewed. Pure samples of electrons and photons, mainly coming from decays of known resonances, have been exploited to improve and verify the detector calibration and stability, the reconstruction algorithms and the particle identification...
Andrea Ferretto Parodi
(GE)
29/04/2011, 16:15
Dottorandi e Posters
The talk will describe the selection of samples of charm and beauty mesons, exclusively or semi-exclusively reconstructed on 7 TeV proton-proton collisions recorded in 2010.
These samples have been used for measurements of c-cbar and b-bbar production cross section and to calibrate the flavour tagging algorithms (through the selection of pure, or heavily enriched, b and c-jets samples).
Silvia Taroni
(PG)
29/04/2011, 16:25
Dottorandi e Posters
Lepton charge asymmetry in inclusive pp -> WX production at sqrt(s) = 7 TeV has been measured by the CMS detector at the LHC, using 36/pb of data. These measurements, performed in both W -> e nu and W -> mu nu channels, will provide new insights into proton structure functions.
Francesco Fiori
(PI)
29/04/2011, 16:35
Dottorandi e Posters
his contribution describes the measuremet of J/psi iclusive, prompt and non-prompt cross section using the dimuon channel in the CMS experiment, recently published on EPJC. The analysis is now close to be updated to 40 pb-1 data (the full 2010 statistics) with the inclusion of the psi(2S) cross section. An important contribution to the systematics for this analysis is given by the uncertainty...
Mr
Paolo Francavilla
(INFN and University of Pisa)
29/04/2011, 16:45
Dottorandi e Posters
The data collected in ATLAS at sqrt(s)=7 TeV in 2010, are being used the perform the measurement of the inclusive jet cross section. The processes studied in this measurement are the first giving a glance at the physics at the TeV scale. The presentation will focus on the measurement of the inclusive jet cross section,looking at jets in different rapidity intervals up to very forward regions,...
Antonio Tropiano
(FI)
29/04/2011, 16:55
Dottorandi e Posters
Vengono presentae le sezzioni d'urto di produzione del top nel canale dileptonico e nel canale leptone+jet (con e senza richiesta di b-tagging)
Ms
Angela Romano
(University of Birmingham)
29/04/2011, 17:05
Dottorandi e Posters
The ratio of charged kaon leptonic decay rates BR(K --> e nu)/BR(K -->mu nu) is suppressed and predicted to excellent precision within the Standard Model. A precision test of lepton flavour universality by measurement of this ratio at the NA62 experiment at CERN, based on a dedicated sample collected in 2007, is reported. A record accuracy of 0.5% has been achieved. This result constrains the...
98.
Studio della produzione di J/psi e Z in collisioni piombo--‐piombo a LHC con l'esperimento ATLAS
Camilla Maiani
(ROMA1)
29/04/2011, 17:15
Dottorandi e Posters
Using the ATLAS detector, a centrality-dependent suppression has been observed in the yield of J/psi mesons produced in the collisions of lead ions at the Large Hadron Collider. In a sample of minimum-bias lead-lead collisions at a nucleon-nucleon centre of mass energy sqrt(s) = 2.76 TeV, corresponding to an integrated luminosity of about 6.7 ubˆ-1, J/psi mesons are reconstructed via their...
