“…Candidates of W bosons are identified through their decay into a charged lepton (muon or electron) and a neutrino, in the pseudorapidity range $|\eta^{\ell}|<2.1$. …”
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“…Per questa ragione, in questa edizione del testo, è stata rivolta particolare attenzione all’aggiornamento dei risultati relativi allo studio dei neutrini nell’ambito del doppio decadimento beta e delle oscillazioni di neutrino. In ogni caso, gli argomenti discussi rappresentano una scelta, per qualche verso arbitraria, del vasto materiale disponibile e vengono proposti con carattere introduttivo e non esaustivo. …”
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“…Charged Higgs bosons decaying to a tau lepton and a neutrino are searched for using final states with two charged leptons, or one charged lepton and a hadronically decaying tau. …”
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“…Events are selected from the semi-leptonic final state of the $t\bar t$ system with one electron or muon, two $b$-quark jets, two light jets and missing momentum from the neutrino, along with an additional four $b$-jets from the Higgs boson decay. …”
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“…The invariant mass of the sum between the next-to leading jet and the reconstructed neutrino corresponds to the other top quark as invariant mass from a tt¯ event. …”
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“…The observation of neutrino oscillations indicates that lepton flavour violation (LFV) occurs in nature and that lepton flavour is not an exact symmetry. …”
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“…However, several processes, like the observation of neutrino oscillations or the presence of dark matter in the universe, constitute signs of physics beyond this model. …”
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“…Among the light elements produced during BBN, deuterium is an excellent indicator of cosmological parameters because its abundance is highly sensitive to the primordial baryon density and also depends on the number of neutrino species permeating the early Universe. Although astronomical observations of primordial deuterium abundance have reached percent accuracy, theoretical predictions based on BBN are hampered by large uncertainties on the cross-section of the deuterium burning D(p,γ)3He reaction. …”
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“…Certain new physics models, with extended Higgs sectors, may hold answers to some long-lasting questions in particle physics, such as the origin of neutrino mass, the identity of dark matter, and the realization of a strong first-order phase transition for electroweak baryogenesis. …”
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“…The final state comprises a single top quark along with a light quark giving rise to at least two jets, (one of which arises from the hadronization of a b quark), an isolated high-momentum lepton (electron or muon), and large missing transverse momentum due to an escaping neutrino from the W boson decay. The study is based on proton-proton collision data, equivalent to $35.9$ $\mathrm{fb}^{-1}$ integrated luminosity, recorded at $\sqrt{s}$ = 13 TeV by the CMS experiment during 2016. …”
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“…--HTML--><p><span><span>When not bound up in an atomic nucleus, the neutron decays into a proton, electron and anti-neutrino in on average about 15 minutes. Detailed measurements of this process – the overall rate, correlations between neutron spin and final-state particle momenta, etc. – can be used to determine parameters of the underlying standard model of particle physics. …”
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“…Ed Witten and Frank Wilczek discuss string theory and the future of particle physics; Donald Perkins describes the search for neutrino oscillations; Alvin Tollestrup reveals dreams of a muon collider at Fermilab to probe the heart of “elementary” particles; and Robert Palmer anticipates a new generation of particle accelerators. …”
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“…The most stringent demands on the chopper come from the operation of a Neutrino Factory, which requires 44 MHz bunch frequency in the accumulator ring and in the muon bunch rotation. …”
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“…This will result in 3.5*10^6 ttbar events in the semileptonic decay channel ttbar -&gt; b W^+ bbar W^- -&gt; b bbar q qbar l neutrino. This signature is used for simulations, including the response of the CMS detector, to determine the top mass in the hadronic decay branch via the invariant three jet mass m( jjj). …”
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“…In all the cases the combination of a careful adjustment of the machine parameters (mainly QH and xH), of the kicker settings and of the current provided by the current source result ed in an improvement of the detection efficiency for the neutrino experiments.…”
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“…One of the requirements is the implementation of decays into five mesons plus a neutrino with a realistic decay amplitude. This note describes a step into this direction. …”
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“…By the year 2000 also the tau neutrino was discovered and only one piece seemed missing, the top quark, companion of the bottom quark with charge 2/3. …”
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“…NA61/SHINE (SPS Heavy Ion and Neutrino Experiment) is a fixed-target experiment operating at the CERN SPS accelerator. …”
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“…Finally, I prepared the search for a charged heavy gauge boson W' decaying in an electron and a neutrino, using a calorimetric only definition of missing transverse energy in order to improve the method's robustness in the perspective of an early data analysis.…”
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“…The results of a search for charged Higgs bosons decaying to a tau lepton and a neutrino, $H^{\pm} \to \tau^{\pm} \nu$, are presented. …”
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