L. Silvestrini
A5070693782- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Neutrino Physics Research
- Cosmology and Gravitation Theories
- Computational Physics and Python Applications
- Black Holes and Theoretical Physics
- Dark Matter and Cosmic Phenomena
- Distributed and Parallel Computing Systems
- Particle Detector Development and Performance
- Superconducting Materials and Applications
- Particle Accelerators and Free-Electron Lasers
- Nuclear physics research studies
- Manufacturing Process and Optimization
- Atomic and Subatomic Physics Research
- Scientific Computing and Data Management
- Medical Imaging Techniques and Applications
- Parallel Computing and Optimization Techniques
- Geophysics and Gravity Measurements
- Mathematics, Computing, and Information Processing
- Particle accelerators and beam dynamics
- Mathematical Analysis and Transform Methods
- Renal and Vascular Pathologies
- Speech Recognition and Synthesis
- Numerical methods for differential equations
Istituto Nazionale di Fisica Nucleare, Sezione di Roma I
2014-2024
Istituto Nazionale di Fisica Nucleare
2020-2023
University of Bologna
2022
Queen Mary University of London
2011-2022
Yandex (Russia)
2017-2022
Istituto Nazionale di Fisica Nucleare, Sezione di Roma Tre
2002-2022
National Research University Higher School of Economics
2017-2022
Istituto Nazionale di Fisica Nucleare, Sezione di Bologna
2008-2022
Roma Tre University
2008-2022
Scuola Normale Superiore
2022
We present the physics program of Belle II experiment, located on intensity frontier SuperKEKB $e^+e^-$ collider. collected its first collisions in 2018, and is expected to operate for next decade. It anticipated collect 50/ab collision data over lifetime. This book outcome a joint effort collaborators theorists through theory interface platform (B2TiP), an that commenced 2014. The aim B2TiP was elucidate potential impacts program, which includes wide scope topics: B physics, charm, tau,...
During 2011 the LHCb experiment at CERN collected 1.0 fb−1 of $\sqrt{s} = 7\mbox{~TeV}$ pp collisions. Due to large heavy quark production cross-sections, these data provide unprecedented samples flavoured hadrons. The first results from have made a significant impact on flavour physics landscape and definitively proved concept dedicated in forward region hadron collider. This document discusses implications measurements classes extensions Standard Model, bearing mind interplay with searches...
Within the standard approach of effective field theory weak interactions for ΔB=1 transitions, we look possibly unexpected subtle New Physics effects, here dubbed "flavourful Easter eggs". We perform a Bayesian global fit using publicly available HEPfit package, taking into account state-of-the-art experimental information concerning these processes, including suggestive measurements from LHCb RK and RK∗ , latter only very recently. parametrise contributions to b→s transitions in terms...
In the original version of this manuscript, an error was introduced on pp352. '2.7nb:1.6nb' has been corrected to '2.4nb:1.3nb' in current online and printed version. doi:10.1093/ptep/ptz106.
We critically reassess the theoretical uncertainties in Standard Model calculation of $B \to K^* \ell^+ \ell^-$ observables, focusing on low $q^2$ region. point out that even optimized observables are affected by sizable uncertainties, since hadronic contributions generated current-current operators with charm difficult to estimate, especially for $q^2 \sim 4 m_c^2\simeq 6.8$ GeV$^2$. perform a detailed numerical analysis and present both predictions results from fit obtained using most...
In light of the very recent updates on $R_K$ and $R_{K^*}$ measurements from LHCb Belle collaborations, we systematically explore here imprints New Physics in $b \to s \ell^+ \ell^- $ transitions using language effective field theories. We focus effects that violate Lepton Flavour Universality both Weak Effective Theory Standard Model Field Theory. find a preference for scenarios with simultaneous presence two operators, left-handed quark current vector muon coupling right-handed axial...
Abstract is a flexible open-source tool which, given the Standard Model or any of its extensions, allows to (i) fit model parameters set experimental observables; (ii) obtain predictions for observables. can be used either in Monte Carlo mode, perform Bayesian Markov Chain analysis model, as library, observables point parameter space allowing statistical framework. In present version, around thousand have been implemented and several new physics scenarios. this paper, we describe general...
The LHCb collaboration has very recently released a new study of $B^+ \to K^{+} \ell^+ \ell^-$ and $B K^{*0} ($\ell = e,\mu$) decays, testing lepton universality with unprecedented accuracy using the whole Run 1 2 dataset. In addition, CMS reported an improved analysis branching ratios $B_{(d,s)}\to\mu^+\mu^-$. While these measurements offer, per se, powerful probe New Physics, global analyses $b s transitions also rely on assumptions about nonperturbative contributions to decay matrix...
We assess the impact of very recent measurement top-quark mass by CMS Collaboration on fit electroweak data in standard model and beyond, with particular emphasis prediction for W boson. then compare this average corresponding experimental measurements including new CDF Collaboration, discuss its compatibility model, physics models oblique corrections, dimension-six effective field theory. Finally, we present updated global to precision these models.
The present report documents the results of Working Group 2: B, D and K decays, workshop on Flavor in Era LHC, held at CERN from November 2005 through March 2007. With advent we will be able to probe New Physics (NP) up energy scales almost one order magnitude larger than it has been possible with accelerator facilities. While direct detection new particles main avenue establish presence NP indirect searches provide precious complementary information, since most probably not measure full...
We present results from a state-of-the-art fit of electroweak precision observables and Higgs-boson signal-strength measurements performed using 7 8 TeV data the Large Hadron Collider. Based on HEPfit package, our study updates traditional extends it to include measurements. As result we obtain constraints new physics corrections both couplings. projected accuracy taking into account expected sensitivities at future colliders.
We present a lattice QCD computation of the b-quark mass, B and s decay constants, B-mixing bag prameters for full four-fermion operator basis as well determinations ξ f Bq $ \sqrt{{B_i^{(q) }}} extrapolated to continuum limit physical pion mass. used N = 2 twisted mass Wilson fermions at four values spacing with masses ranging from 280 500 MeV. Extrapolation in heavy quark charm bottom region has been carried out on ratios quantities computed nearby masses, exploiting fact that they have an...
We perform an analysis within the Standard Model of $B^{0,+} \to K^{*0,+} \mu^+ \mu^-$ decays in light recent measurements from LHCb experiment, showing that new data strengthen need for sizable hadronic contributions and correlations among them. then extend our to New Physics via Effective Theory, carry out a state-of-the-art fit available $b s \ell^+ \ell^-$ data, including possible contributions. find case fully left-handed operator standing as simplest scenario with significance almost $6\sigma$.
We perform a global fit of electroweak data within the Standard Model, using state-of-the art experimental and theoretical results, including determination electromagnetic coupling at scale based on recent lattice calculations. In addition to posteriors for all parameters observables obtained from fit, we present indirect determinations predictions observables. Furthermore, full predictions, only information Model parameters, fully data. Finally, discuss in detail compatibility with find p-value 0.5.
The statistical models used to derive the results of experimental analyses are incredible scientific value and essential information for analysis preservation reuse. In this paper, we make case systematically publishing full discuss technical developments that practical. By means a variety physics cases -- including parton distribution functions, Higgs boson measurements, effective field theory interpretations, direct searches new physics, heavy flavor dark matter detection, world averages,...