Ennio Monteil
(TO)
21/04/2017, 17:00
Sessione Nuove Tecnologie
Poster contribution
A first prototype of a readout ASIC in CMOS 65 nm for a pixel detector at High Luminosity LHC is described. The pixel cell area is of 50x50 um2 and the matrix consists of 64x64 pixels. The chip was designed to guarantee high efficiency at extreme data rates for very low signals and with low power consumption. Two different analogue very-front-end designs, one synchronous and one asynchronous,...
Lucia Grillo
(MIB)
21/04/2017, 17:00
Sessione Nuove Tecnologie
Poster contribution
LHCb e`l’esperimento all’LHC designato per lo studio dei decadimenti di adroni contenenti quark b e c. Per raggiungere questo scopo, l’esperimento include rivelatori progettati per ottenere un ricostruzione delle tracce di alta efficienza (>95%) con un’eccellente risoluzione sulla misura del momento (0.5% for p<20 GeV), mentre due rivelatori Ring Imaging Cherenkov consentono di identificare...
Marta Crispoltoni
(PG)
21/04/2017, 17:00
Sessione Cosmologia e Astroparticelle
Poster contribution
L’Alpha Magnetic Spectrometer (AMS-02) è uno spettrometro magnetico per la ricerca indiretta di materia oscura e la misura di precisione dei raggi cosmici ad energie tra il GeV e il TeV, operante sulla Stazione Spaziale Internazionale (ISS) dal 19 Maggio 2011. Concepito con le tecnologie utilizzate per gli esperimenti di fisica delle particelle agli acceleratori, è composto da più...
Marco Marcante
(TIFPA, FBK, UniTN)
21/04/2017, 17:00
Sessione Nuove Tecnologie
Poster contribution
Gli sviluppi fatti durante gli ultimi anni nella tecnologia dei Silicon Photomultipliers (SiPM) rendono questi sensori delle alternative molto interessanti ai tradizionali tubi fotomoltiplicatori (PMT), nell’ambito di esperimenti di fisica basati sulla lettura della luce di scintillazione da Argon e Xenon liquidi. Rispetto ai PMT, i SiPM sono in grado di offrire una maggiore radiopurezza,...
Luca Tosti
(PG)
21/04/2017, 17:00
Sessione Nuove Tecnologie
Poster contribution
L’utilizzo di fotomoltiplicatori al silicio (SiPM) in applicazioni che richiedono alta sensibilità e ottima risoluzione temporale nella rivelazione di fotoni con basse intensità di radiazione è ampiamente diffuso e divenuto uno standard negli ultimi anni. L’Istituto Nazionale di Fisica Nucleare è coinvolto in un progetto di ricerca e sviluppo in collaborazione con la Fondazione Bruno Kessler...
Vasile Cristian Antochi
(ROMA1)
21/04/2017, 17:00
Sessione Nuove Tecnologie
Poster contribution
Large arrays of aligned carbon nanotubes (CNTs), open at one end, could be used as target material for the directional detection of weakly interacting dark matter particles (WIMPs). As a result of a WIMP elastic scattering on a CNT, a carbon ion might be injected in the body of the array and propagate through multiple collisions within the lattice. The ion may eventually emerge from the...
Dr
Mattia Manfredonia
(Dipartimento di Fisica Ettore Pancini, Universita' di Napoli Federico II)
21/04/2017, 17:00
Sessione Cosmologia e Astroparticelle
Poster contribution
We develop an iterative approach to span the whole set of exotic matter models able to drive a traversable wormhole. The method, based on a Taylor expansion of metric and stress-energy tensor components in a neighbourhood of the wormhole throat, reduces the Einstein equation to an infinite set of algebraic conditions, which can be satisfied order by order. The approach easily allows the...
Elisabetta Soldani
(BA)
21/04/2017, 17:00
Sessione Nuove Tecnologie
Poster contribution
I rivelatori basati su tecnologia gem (gas elettron multipliers) sono largamente usati negli esperimenti di fisica delle alte energie. La capacità di sostenere alte rate, l'ottima risoluzione spaziale, l'elevata risoluzione temporale e l'efficienza prossima al 100% che li caratterizzano, ne fanno i candidati ideali per l'upgrade della regione ad alta pseudo rapidità dell'esperimento CMS....
Lorenzo Pagnanini
(GSSI)
21/04/2017, 17:00
Sessione Nuove Tecnologie
Poster contribution
With their excellent energy resolution, efficiency, and intrinsic radio-purity, cryogenic calorimeters are primed for the search of neutrino-less double beta decay (0nDBD). The sensitivity of these devices could be further increased by discriminating the dominant alpha background from the expected beta like signal. The CUPID-0 collaboration aims at demonstrating that the measurement of the...
Salvatore Bruno
(ROMA2)
21/04/2017, 17:00
Sessione Nuove Tecnologie
Poster contribution
The measurement of time plays a fundamental role in many physics experiments. The TDC, Time to Digital Converter, is a device that returns a time interval every time the there's two input pulses. This device can be applied in many physics experiments because we are can convert physical events in pulses so as to measure the time between two pulses. In the data output from the TDC they are...
Mr
Roberto Mendicino on behalf of the INFN-FBK Phase2 Collaboration.
(TIFPA)
21/04/2017, 17:00
Sessione Nuove Tecnologie
Poster contribution
During the 2024-2025 shutdown, the Large Hadron Collider (LHC) will be upgraded to reach an instantaneous luminosity of up to 7×1034 cm-2 s-1 (phase-2 upgrade). ATLAS and CMS detectors will be deeply renewed to meet the new challenges: an average of 200 pile-up events in every bunch crossing and an integrated luminosity of 3000-4000 fb-1 over ten years or more. A first batch of new 3D pixel...
Luca Pizzimento
(R)
21/04/2017, 17:00
Sessione Nuove Tecnologie
Poster contribution
The Resistive Plate Chamber (RPC) detector front-end for high rate experiments is being developed. A mixed technology in Silicon and Silicon-Germanium is used in order to enhance its performances: a preamplifier in Silicon with a very low inner noise (1000 e- rms) and a new kind of discriminator in SiGe technology with a threshold of the order of 1 mV. The main feature of this new kind of...
Alessandro Rocchi
(ROMA2)
21/04/2017, 17:00
Sessione Nuove Tecnologie
Poster contribution
A new kind of particle detector based on Resistive Plate Chamber structure is under development. Semi-Conductive electrodes with resistivity up to 10^8 Ω∙cm are introduced to improve Rate Capability performance. The aim is to obtain a radiation hard detector with sub-nanosecond time resolution capable of working in high rate environment (order of MHz/cm2). In this presentation some results on...
Dr
Andrea Favareto
(GE)
21/04/2017, 17:00
Sessione Nuove Tecnologie
Poster contribution
L'esperimento ATLAS raccoglie miliardi di eventi ogni anno di presa dati e li elabora in modo da renderli disponibili per le analisi di fisica in diversi formati. Inoltre una quantità ancora maggiore di eventi vengono simulati secondo modelli di fisica e del rivelatore per poi essere ricostruiti e analizzati paragonandoli a eventi reali. L’EventIndex è un catalogo che comprende tutti gli...
Serena Palazzo
(Università della Calabria & INFN - Cosenza)
21/04/2017, 17:00
Sessione Frontiera Energia
Poster contribution
L’elevata energia nel centro di massa (attualmente 13 TeV) e luminosita’ integrata totale disponibili a LHC permettono studi del quark top con una precisione mai raggiunta prima. Essendo l’unico quark che decade prima della fase di adronizzazione, rappresenta un’ opportunita’ unica per lo studio delle proprieta’ dei quark “nudi”. Grazie alla disponibilita’ di calcoli teorici di QCD di elevata...
Dr
Andrea Mitridate
(SNS)
21/04/2017, 17:00
Sessione Cosmologia e Astroparticelle
Poster contribution
In models where the Dark Matter arises as a thermal relic of an early annihilation stage we can use the cosmological DM abundance to derive information on the DM mass. Thus it is crucial to compute thermal freeze-out abundance accurately. The importance of non-relativistic effects, like Sommerfeld enhancement, in the annihilation of DM particles has been recognized long time ago. In this talk...
Ms
Alba Domi
(INFN - Genova / Università degli studi di Genova)
21/04/2017, 17:00
Sessione Cosmologia e Astroparticelle
Poster contribution
Dark matter is one of the pillars of the Standard Cosmological Model, but its nature is today still unknown. Its possible connection with theories beyond the Standard Model of particle physics makes dark matter one of the most important open problems in modern cosmology and particle physics, as witnessed by the enormous theoretical and experimental effort that is being put towards its...
Ms
Eleonora Diociaiuti
(INFN Laboratori Nazionali di Frascati)
21/04/2017, 17:00
Sessione Frontiera Intensità
Poster contribution
L'esperimento Mu2e al Fermilab ricerca la conversione coerente di muone in elettrone nel campo elettrico di un nucleo, μ + N(A,Z) ->e + N(A,Z). Si tratta di un esempio di violazione della conservazione del numero leptonico nel settore dei leptoni carici (CLFV) mai osservato sperimentalmente. Secondo il Modello Standard, la probabilità per tali processi è trascurabile (BR ~10^-54). Esistono...
Collaboration SHiP
(INFN)
21/04/2017, 17:00
Sessione Frontiera Intensità
Poster contribution
SHIP is a new general purpose fixed target facility, whose Technical Proposal has been recently reviewed by the CERN SPS Committee and by the CERN Research Board. The two boards recommended that the experiment proceeds further to a Comprehensive Design phase in the context of the new CERN Working group "Physics Beyond Colliders", aiming at presenting a CERN strategy for the European Strategy...
Dr
Andrea Renato Rossi
(MI)
21/04/2017, 17:00
Sessione Nuove Tecnologie
Poster contribution
The External Injection (SL-ExIn) experiment aims at demonstrating the possibility to accelerate a high brightness electron bunch by plasma wakefields in a stable and reproducible way, without spoiling its phase space quality. The plasma wakefield is excited through a high power laser guided by a dielectric capillary. Simulations[1] show this is actually feasible and foresee an accelerating...
62.
Longitudinally segmented shashlik calorimeters with embedded SiPM readout for the ENUBET Project
Dr
Michele Pozzato
(INFN - Sez Bologna)
21/04/2017, 17:00
Sessione Nuove Tecnologie
Poster contribution
The study of CP violation in the leptonic sector require measurements of absolute neutrino cross sections at the GeV scale with a precision of ~1% level which is up to now at the level of 10% due to uncertainties on neutrino flux at the source. The ENUBET project (Enhanced NeUtrino BEams from kaon Tagging, ERC-CoG-2015 grant) is developing an innovative technique to produce intense sources of...
Ivan Ravasenga
(TO)
21/04/2017, 17:00
Sessione Nuove Tecnologie
Poster contribution
ALICE (A Large Ion Collider Experiment) è uno degli esperimenti al Large Hadron Collider (LHC) del CERN a Ginevra, ed ha lo scopo di caratterizzare il Quark Gluon Plasma (QGP), uno stato della materia in cui quark e gluoni risultano deconfinati, per mezzo di collisioni tra nuclei Piombo fino ad una energia di 5.5 TeV per nucleone nel centro di massa. Nel 2021 inizierà il terzo run di LHC dopo...
Fabio Ferrari
(BO)
21/04/2017, 17:00
Sessione Frontiera Intensità
Poster contribution
The $B^0$, $B^0_s$, $B^+$ and $\Lambda^0_b$ hadron production asymmetries are measured using a data sample corresponding to an integrated luminosity of 3.0$fb^{-1}$, collected by the LHCb experiment in proton-proton collisions at centre-of-mass energies of 7 and 8 TeV. The $B^0$, $B^0_s$ and $B^+$ production asymmetries are measured by means of $B^0 \to J/\psi(\mu^+ \mu^-) K^{*0}(K^- \pi^+)$,...
Giuseppe Callea
(Università della Calabria & INFN-Cosenza)
21/04/2017, 17:00
Sessione Frontiera Energia
Poster contribution
The production of prompt photons in association with jets in proton–proton collisions provides a testing ground for perturbative QCD with a hard colourless probe, less affected by hadronization effects than jet production. The measurements of the angular correlations between the photon and the jets can be used to probe the dynamics of the hard-scattering process. Cross section measurements...
Dr
Umberto Marconi
(BO)
21/04/2017, 17:00
Sessione Frontiera Intensità
Poster contribution
The precision measurement of the anomalous magnetic moment of the muon presently exhibits a 3.5σ discrepancy with the Standard Model (SM) prediction. In the next few years this measurement will reach an even higher precision at Fermilab and J-PARC. While the QED and electroweak contributions to the muon g-2 can be determined very precisely, the leading hadronic (HLO) correction is affected by...
Federico Betti
(BO)
21/04/2017, 17:00
Sessione Frontiera Intensità
Poster contribution
La violazione di Universalità Leptonica costituirebbe un indizio di fisica oltre il Modello Standard. I decadimenti semileptonici dei mesoni beauty in leptoni di terza generazione sono di particolare interesse, dato che sono state osservate anomalie nella misura dei loro Branching Ratio. Vengono presentate le misure dell’osservabile $R(D^*) = \mathcal{B}(B^0 \to...
Marco Boretto
(TO)
21/04/2017, 17:00
Sessione Frontiera Intensità
Poster contribution
The NA62 is a fixed target experiment located at CERN Super Proton Synchrotron (SPS). The main experiment goal is to measure the K+→π+νν ̄with 10% of accuracy. This decay is a neutral weak current with a quark flavor violation highly suppressed by the GIM mechanism. Its branching ratio is predicted by the Standard Model with unusual precision (estimated to 8.4x10-11). In order to measure this...
Daniele Marangotto
(MI)
21/04/2017, 17:00
Sessione Frontiera Intensità
Poster contribution
Permanent electric dipole moments (EDMs) of fundamental particles provide powerful probes for physics beyond the Standard Model. We propose to search for the EDM of strange and charm baryons at LHC, extending the ongoing experimental program on the neutron, muon, atoms, molecules and light nuclei. The EDM of strange Λ baryons, selected from weak decays of charm baryons produced in pp...
Lorenzo Rossini
(MI)
21/04/2017, 17:00
Sessione Nuove Tecnologie
Poster contribution
Abstract : The ATLAS pixel detector has been exposed to considerable levels of radiation during its operation at the LHC, up to 2x1014 neq /cm2. By the end of run3 in 2023, the integrated luminosity and fluence will have further increased by an order of magnitude. Radiation damage effects are already visible, and they will increasingly affect the detector performance in the coming future....
Riccardo Salvatico
(INFN Torino)
21/04/2017, 17:00
Sessione Nuove Tecnologie
Poster contribution
Outstanding time resolution will be an asset at the High Luminosity Large Hadron Collider (HL-LHC), where locating the primary interaction vertex will be extremely challenging due to the large number of interactions per bunch crossing. The upgrade of the Compact Muon Solenoid (CMS) crystal electromagnetic calorimeter (ECAL), which will operate at the HL-LHC, will achieve a timing resolution of...
Clara Taruggi
(LNF)
21/04/2017, 17:00
Sessione Nuove Tecnologie
Poster contribution
Lo scopo dell’esperimento PADME, ospitato presso i Laboratori Nazionali di Frascati, è la ricerca del fotone oscuro (A') prodotto in reazioni di positroni su bersaglio $e^{+}\, e^{-}\rightarrow A'\,\gamma$, per mezzo della misura della massa mancante nello stato finale (A’ e/o i suoi figli non vengono rivelati). Conseguentemente la componente principale del rivelatore è il calorimetro...
Mr
Edoardo Maria Farina
(University of Pavia)
21/04/2017, 17:00
Sessione Frontiera Energia
Poster contribution
Con l’incremento della luminosità integrata ad LHC la ricerca di particelle di possibili candidati di materia oscura assume sempre maggior rilevanza. Nell'ambito di modelli semplificati per la produzione della materia oscura all'LHC, la materia oscura è prodotta attraverso il decadimento di un mediatore con accoppiamenti sia alle particelle del modello standard che alla materia oscura. Per...
Elisabetta Manca
(PI)
21/04/2017, 17:00
Sessione Frontiera Energia
Poster contribution
After the discovery of the Higgs boson all the parameters of the Standard Model have been measured and therefore it is possible to exploit the predictive power of the theory to set more stringent limits to known observables. A significant deviation of the measured values from the prediction would be an indirect hint of physics beyond the SM. The precision with which the W boson mass is...
Giacomo De Pietro
(ROMA3)
21/04/2017, 17:00
Sessione Frontiera Intensità
Poster contribution
L'esperimento Belle II è un sostanziale upgrade dell'esperimento Belle e opererà presso la B-factory SuperKEKB, situata al laboratorio KEK a Tsukuba, Giappone. Sebbene Belle II sia stato appositamente progettato per effettuare misure di precisione relative al quark bottom, esso sarà anche un laboratorio ideale per lo studio delle proprietà del quark charm. E' previsto che l'esperimento...
Dr
Silvia Martellotti
(INFN Laboratori Nazionali di Frascati)
21/04/2017, 17:00
Sessione Frontiera Intensità
Poster contribution
I decadimenti rari K → π ν ν-bar sono decadimenti FCNC estremamente soppressi. Il loro BR è predetto dallo SM con una elevata precisione, ancora mai raggiunta dai risultati sperimentali. Una misura precisa del loro BR fornirebbe nuovi vincoli alla matrice CKM di unitarietà e permetterebbe di mettere in evidenza eventuali effetti di nuova fisica oltre lo SM. L’esperimento NA62 attualmente in...
Prof.
Simone Montangero
(Saarland University and Center for Integrated Quantum Science and Technologies)
21/04/2017, 17:00
Sessione Nuove Tecnologie
Poster contribution
Recently there have been a boost in the research activities related to quantum simulations: on the one hand, recent experimental results showed how the field is becoming mature to provide interesting simulations of many-body physics. On the other hand, following the original idea put forward by Feynman, it has become clear that quantum simulators could be applied to a long-standing problem,...
Eleonora Rossi
(R)
21/04/2017, 17:00
Sessione Nuove Tecnologie
Poster contribution
In view of the ATLAS Phase II Upgrade, a proposal to extend the detector acceptance of the muon system to large η (up to | η|~4) is being considered. The aim of the new detector is to tag muons, relying on the combination with the inner detector track for the momentum measurement. The new large-η Muon Tagger should cope with extremely high particle rate, dominated by background hits up to...
Nico Giangiacomi
(BO)
21/04/2017, 17:00
Sessione Nuove Tecnologie
Poster contribution
The Large Hadron Collider (LHC) at CERN obtained several important results such as the discovery of the Higgs Boson. However, the study of Standard Model parameters and the search for new physics can be enhanced by acting on two key parameters: energy and luminosity. Particle beams at LHC will reach the design energy (14 TeV in the center of momentum frame) within the end of Run 2, while the...
Leonardo Giannini
(PI)
21/04/2017, 17:00
Sessione Frontiera Energia
Poster contribution
Sono presentati i risultati più recenti dell’esperimento CMS relativi alla ricerca di produzione risonante di coppie HH nel canale 4b. La produzione risonante di coppie HH è prevista in molteplici scenari di nuova fisica, e lo stato finale a 4 quark b è uno dei più sensibili, grazie all’alto branching ratio dell’Higgs in coppie di b-quark. La ricerca di questo tipo di risonanze copre un ampio...
Giacomo Volpe
(BA)
21/04/2017, 17:00
Sessione Nuove Tecnologie
Poster contribution
In precedenza abbiamo sviluppato e testato con successo un prototipo di rivelatore RICH (Ring Imaging Cherenkov) consistente di una GEM a tre strati depositata con CsI, operante con gas in modo flussato. Nel presente lavoro, presentiamo una versione modificata di questo rivelatore per un’applicazione completamente differente – la prevenzione di incendi. Il rivelatore è sigillato ed è combinato...
Laura Zani
(PI)
21/04/2017, 17:00
Sessione Frontiera Intensità
Poster contribution
B mesons are the lightest mesons which can decay to various final states containing different baryons. Up to now, the discrepancy between the inclusive branching fraction of all B meson decay modes with at least a couple of baryons in the final state, measured by ARGUS to be (6.8 +- 0.6)% , and the sum of exclusive baryonic channels, averaged on neutral and positive B mesons at less than 1%,...
Francesco Cirotto
(NA)
21/04/2017, 17:00
Sessione Frontiera Energia
Poster contribution
Dark Matter (DM) production and detection is one of the most challenging goal at the Large Hadron Collider (LHC). Despite there are no direct evidences, its existence in the Universe is highly motivated by many astrophysical and cosmological observations. If interactions between DM and SM particles exist, DM particles can be pair produced at LHC. Since WIMPs are weakly interacting a way to...
Ms
Sonia Carrà
(Università degli Studi di Milano)
21/04/2017, 17:00
Sessione Frontiera Energia
Poster contribution
Supersymmetry is one of the most motivated Standard Model extensions. Despite the meticulous search during the LHC Run I, there is no evidence supporting this theory. Starting from 2015, LHC is performing a second data taking run with a higher center of mass energy (13 TeV), providing a great occasion for the search of beyond the Standard Model physics. An analysis in progress, base on the...
Simone Gelli
(INFN Roma)
21/04/2017, 17:00
Sessione Frontiera Energia
Poster contribution
A search for a heavy resonance decaying to Zgamma, with the Z boson further decaying to jets or leptons, is presented. The final state with jets is studied in the boosted regime, where the two jets from the Z are merged in one. The search strategy is to look for an excess above the non-resonant Standard Model background on the J+gamma or llgamma invariant mass spectrum. The search is based on...
Michele Pinamonti
(ROMA2)
21/04/2017, 17:00
Sessione Frontiera Energia
Poster contribution
The top quark, given it's high mass with respect to the other quarks and leptons, is expected to play a special role in searching for Physics Beyond the Standard Model. In particular, new heavy particles predicted by different models couple preferentially to top quarks, making searches involving top quarks in the final state of great interest.These include the search for for heavy neutral...
Luigi Longo
(LE)
21/04/2017, 17:00
Sessione Frontiera Energia
Poster contribution
Despite the lack of experimental evidence from LHC Run 1, supersymmetry (SUSY) remains one of the most promising and motivated Standard Model extensions. Supersymmetry models with light partners of the top quark (top squarks or stops) are well motivated since they limit the dominant correction to the Higgs boson mass and thus preserve naturalness. In this talk, the latest results in searching...
Monica Verducci
(ROMA3)
21/04/2017, 17:00
Sessione Frontiera Energia
Poster contribution
A summary on Higgs boson pair production searches is presented using pp collision data collected at sqrt(s)= 13 TeV by the ATLAS detector at the Large Hadron Collider in 2015 and 2016 data-taking. The different final states 4b, bbyy, bbtautau, WWbb e WWyy have been investigated. Results are interpreted as non resonant SM-like hh production and a narrow heavy Higgs boson decaying to hh pairs....
Carlo Varni
(GE)
21/04/2017, 17:00
Sessione Frontiera Energia
Poster contribution
Since the discovery of the Higgs boson in 2012 several measurements have investigated the properties of this new particle, providing detailed information concerning its coupling to Vector bosons. Conversely, little is known about the Higgs boson’s coupling to fermions. In this context, more accurate studies must be conducted in order to further test the validity of the Standard Model:...
Konstantinos Bachas
(LE)
21/04/2017, 17:00
Sessione Frontiera Energia
Poster contribution
Searches for new heavy resonances decaying to WW, WZ, and ZZ bosons are presented, using Run-2 data of pp collisions at √s=13 TeV collected with the ATLAS detector at the LHC. The strategies of the analyses are overviewed, searching for a narrow-width resonance with mass between 500 and 5000 GeV. Three benchmark models are tested: a model predicting the existence of a new heavy scalar singlet,...
Gianluca Introzzi
(INFN and University of Pavia)
21/04/2017, 17:00
Sessione Nuove Tecnologie
Poster contribution
Large-size multilayer resistive Micromegas detectors will be employed for the Muon Spectrometer upgrade of the ATLAS experiment at CERN. The current innermost stations of the muon end-cap system, two 10 m diameter wheels, will be upgraded in the 2019-2020 long shut-down of LHC, to retain the good precision tracking and trigger capabilities in the high background environment expected with the...
Domenico Colella
(INFN Bari)
21/04/2017, 17:00
Sessione Frontiera Energia
Poster contribution
The study of single and multi-strange particle production plays an important role in the investigation of the hot and dense QCD matter created in ultra-relativistic nucleus-nucleus collisions. In the central barrel of the ALICE detector, K0s, Λ, Ξ and Ω can be reconstructed from their weak decay topology. The measured yields and ratios (Λ/K0s and hyperon-to-pion) will be presented for the...
Luca Barioglio
(TO)
21/04/2017, 17:00
Sessione Frontiera Energia
Poster contribution
In questo intervento vengono presentati i risultati ottenuti dall’esperimento ALICE (A Large Ion Collider Experiment) inerenti la produzione di deutoni, 3He e 4He e dei rispettivi anti-nuclei in collisioni tra ioni di piombo a energie nel centro di massa di 2.76 TeV per coppia di nucleoni al Large Hadron Collider (LHC). Nello specifico, vengono presentati gli spettri in momento trasverso e gli...
Alessandro Caltabiano
(ROMA2)
21/04/2017, 17:00
Sessione Nuove Tecnologie
Poster contribution
The WRM (Weighting Resistive Matrix) is a conceptually simple device born for triggering tracks from beam-beam interaction experiments. Cause of its passive nature, is possible to perform track recognition with a time transition in about 10ns from digital inputs. The study and development of this device has brought to a theorization of a WRM able to elaborate analog inputs with highest...
Giada Mancini
(LNF)
21/04/2017, 17:00
Sessione Frontiera Energia
Poster contribution
Studies have been performed in order to pose limits on BSM couplings related to additional EFT contributions to the SM Lagrangian. In this picture, the VBF and VH production mechanisms shows a good sensitivity to BSM contributions to the HZZ vertex. Measurements are therefore performed in reduced phase spaces enriched in each production mode, obtained by categorizing the events in fiducial...
Valerio Vagelli
(PG)
21/04/2017, 17:00
Sessione Nuove Tecnologie
Poster contribution
Il Cherenkov Telescope Array (CTA) Consortium sta sviluppando la nuova generazione di osservatorio a terra per la rivelazione di gamma-ray ad alte energie. L'INFN sta sviluppando una possibile soluzione per la camera di fotoni Cherenkov basata su rivelatori Silicon Photomultiplier (SiPM) di area 6x6mm^{2} e sensibili a radiazione UV, prodotti da Fondazione Bruno Kessler (FBK). La meccanica e...
Benedetto Gianluca Siddi
(FE)
21/04/2017, 17:00
Sessione Nuove Tecnologie
Poster contribution
La simulazione Monte Carlo gioca un ruolo fondamentale nel riprodurre un esperimento di fisica delle alte energie. In LHCb le interazioni delle particelle con gli elementi del rivelatore sono simulate in dettaglio con l'utilizzo del codice di trasporto GEANT4. Questo tipo di simulazione richiede grosse risorse di calcolo, che fanno si che la generazione di grandi campioni Monte Carlo sia...
Anna Driutti
(Universita' di Udine)
21/04/2017, 17:00
Sessione Frontiera Intensità
Poster contribution
The muon anomaly, aμ, is a low-energy observable, which can be both measured and computed to high precision, therefore it provides an important test of the Standard Model (SM) and it is a sensitive probe for new physics. The muon anomaly has been measured to 0.54 parts per million by the E821 experiment at the Brookhaven National Laboratory. This result shows a 3 to 4 standard-deviation...
Claudio Savarese
(GSSI)
21/04/2017, 17:00
Sessione Cosmologia e Astroparticelle
Poster contribution
The DarkSide programme aims to perform direct search for Dark Matter exploring WIMP-nucleon cross section down to the neutrino floor employing a dual phase TPC filled with Argon. Liquid argon is a unique scintillating material allowing an exceptional rejection of electron induced background events by means of pulse shape discrimination. This, together with neutron and muon vetoes, allows the...
Dr
VALENTINA SCOTTI
(NA)
21/04/2017, 17:00
Sessione Cosmologia e Astroparticelle
Poster contribution
The EUSO collaboration has been studying a detector to be installed on the International Space Station which will observe UHECR from space for the first time. The observation of Ultra-high-energy cosmic rays (UHECR) from space offers several advantages such as large field of view, uniform observation of both celestial hemispheres, uniform detector response. For these reasons, space-based...
Ms
Maria Paola Panetta
(LE)
21/04/2017, 17:00
Sessione Cosmologia e Astroparticelle
Poster contribution
The main goal of the Extreme Energy Events (EEE) Project is to study the high energy cosmic radiation. This is accomplished through a network of about 50 muon telescopes distributed throughout the Italian territory. Each telescope consists of three Multigap Resistive Plate Chambers (MRPC) -very similar to those built for the Time Of Flight system of the ALICE experiment- used for particle...
Dario Soldi
(TO)
21/04/2017, 17:00
Sessione Frontiera Intensità
Poster contribution
The NA62 experiment is designed to measure the ultra-rare decay K+ → π+νν branching ratio. The Standard Model prediction is 8.4 x 10-11, requiring an high intensity beam. The intense flux of particles needs a high-performance trigger and data acquisition system, ensuring a high acceptance for the signal events together with a high rejection of the decays accounting for most of the rate. The L0...
Dr
Vito Antonelli
(INFN MIlano & Dipartimento di Fisica Università degli Studi di Milano)
21/04/2017, 17:00
Sessione Cosmologia e Astroparticelle
Poster contribution
The determination of the exact ordering of neutrino mass eigenvalues (Normal or Inverted Hierarchy) is one of the main open issues of neutrino physics, which has a significant impact both on the elementary particle model building and on the evaluation of the potentialities of present and future experiments (like the ones looking for neutrinoless double betha decays). An interesting possibility...
Mr
Chandradoy Chatterjee
(University Trieste and INFN (Trieste))
21/04/2017, 17:00
Sessione Nuove Tecnologie
Poster contribution
The RICH-1 Detector of the COMPASS Experiment at CERN SPS has been upgraded for the physics run 2016: four new Photon Detectors, based on MPGD technology and covering a total active area larger than 1.2 square meters replace the previously used photon detectors, namely MWPCs with CsI photocathodes, in order to cope with the challenging efficiency and stability requirements of the new COMPASS...
Maurizio De Santis
(ROMA2)
21/04/2017, 17:00
Sessione Frontiera Energia
Poster contribution
The top quark is the heaviest particle known in the Standard Model (SM) of particle physics. Due to its large mass, the top quark decays before hadronising. This fact gives the unique possibility to study the phenomenology of a bare quark. In particular, a precision measurement of the top quark mass is crucial to test the SM structure and to constrain any eventual dynamics beyond the SM. The...
Matteo Scornajenghi
(CS)
21/04/2017, 17:00
Sessione Nuove Tecnologie
Poster contribution
The high luminosity upgrade of the LHC (HL-LHC) in 2026 will provide new challenges to the tracking detectors. In ATLAS the current inner detector will be replaced with a whole silicon tracker consisting of a five barrel layer Pixel detector surrounded by a four barrel layer Strip detector. To cope with the expected high radiation levels, the development of upgraded silicon sensors, as well...
Mr
Muhammad Sohail
(Roma Tre University)
21/04/2017, 17:00
Sessione Frontiera Energia
Poster contribution
We report here the results of the search for the Higgs boson pair production where one Higgs boson decay via h->bb and the other via h->WW*->lvqq. where l is either an electron or a muon. This search uses the full dataset 2015 (3.2 fb-1) plus 2016( 33.3 fb-1) of proton-proton collision data at the center of mass energy of 13 TeV recorded with the ATLAS detector at the Large Hadron Collider...
Marco Mandurrino
(INFN)
21/04/2017, 17:00
Sessione Nuove Tecnologie
Poster contribution
In this contribution I will review the most recent progresses towards the development of a silicon detector able to provide accurate measurements in both space and time, the so-called 4-dimension tracking. In particular, the Ultra-Fast Silicon Detectors (UFSD) project is described by discussing working principles of devices, technological state-of-the-art, measurements and TCAD (Technology...
Jacopo Pellegrino
(TO)
21/04/2017, 17:00
Sessione Nuove Tecnologie
Poster contribution
Nel contesto dell’infrastruttura cloud presso la sezione INFN di Torino, è stato implementato un tool basato su OpenNebula per l’installazione semiautomatica di una infrastruttura cloud elastica con servizi di monitoring, mantenimento dell’infrastruttura e gestione delle VM. Tale strumento, dedicato a piccole e medie infrastrutture cloud, è in grado di migliorarne sensibilmente l’usabilità e...
Miljenko Suljic
(TS)
21/04/2017, 17:00
Sessione Nuove Tecnologie
Poster contribution
L’esperimento ALICE è stato progettato con lo scopo di studiare le caratteristiche del Quark-Gluon Plasma tramite le collisioni ultrarelativistiche nucleo-nucleo a LHC ed il confronto con quelle protone-protone e protone-nucleo. Per il periodo 2019-2020, durante il Long Shutdown 2 di LHC, è stato previsto un importante aggiornamento dei rivelatori di ALICE, tra cui l’installazione del nuovo...
