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341
Hadronic versus Leptonic Origin of Gamma-Ray Emission from Supernova Remnants
Published 2023-01-01“…However, it remains uncertain whether this γ -ray emission arises primarily from the decay of neutral pions produced by very-high-energy hadrons, or from inverse-Compton and/or bremsstrahlung emission from relativistic leptons. By applying a semi-analytic approach to non-linear diffusive shock acceleration, and calculating the particle and photon spectra produced in different environments, we parameterize the relative strength of hadronic and leptonic emission. …”
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342
Flavor-dependent U(1) extension inspired by lepton, baryon and color numbers
Published 2023-11-01“…For this aim, the U(1) charge, called X, is expressed as $$X=x B+y L$$ X = x B + y L in which x and y are free parameters as functions of flavor index, e.g. for a flavor i they take $$x_i$$ x i and $$y_i$$ y i respectively, where B and L denote normal baryon and lepton numbers. Imposing a relation involved by the color number 3, i.e. …”
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343
Deep learning searches for vector-like leptons at the LHC and electron/muon colliders
Published 2023-03-01“…Abstract The discovery potential of both singlet and doublet vector-like leptons (VLLs) at the Large Hadron Collider (LHC) as well as at the not-so-far future muon and electron machines is explored. …”
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344
Simulating lepton number violation induced by heavy neutrino-antineutrino oscillations at colliders
Published 2023-03-01Subjects: Get full text
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345
Explaining the hints for lepton flavour universality violation with three S 2 leptoquark generations
Published 2022-06-01“…However, in the minimal setup with a single leptoquark generation, a common explanation for all these issues is not possible as this would lead to unacceptably large charged lepton flavour violation. We therefore propose a model with three generations of S 2, each coupling exclusively to a single lepton flavour, i.e. a model extending the Standard Model particle content by an electroquark, a muoquark and a tauquark. …”
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346
Exploring mixed lepton-quark interactions in non-resonant leptoquark production at the LHC
Published 2023-11-01“…The fact that transitions between different generations of quarks and leptons may exist, the potential of the search presented in this article can be used, as a reference guide, to enlarge significantly the scope of searches performed at the LHC to flavour off-diagonal channels, in a theoretically consistent approach. …”
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347
Complementarity of μTRISTAN and Belle II in searches for charged-lepton flavour violation
Published 2023-10-01“…We illustrate these points with three Z3 “lepton triality” models, where we also find an example that can only be probed by μTRISTAN. …”
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348
Sensitivity prospects for lepton-trijet signals in the $$\nu $$ ν SMEFT at the LHeC
Published 2024-03-01“…In this work we study the prospects of the future LHeC electron-proton collider to discover or constrain the $$\nu $$ ν SMEFT interactions, performing the first dedicated and realistic analysis of the well known lepton-trijet signals, for both the lepton flavor violating $$p ~ e^{-} \rightarrow \mu ^{-} + 3 \textrm{j}$$ p e - → μ - + 3 j (LFV) and the lepton number violating $$p ~ e^{-} \rightarrow \mu ^{+} + 3 \textrm{j}$$ p e - → μ + + 3 j (LNV) channels, for HNLs masses in the electroweak scale range: $$100 ~{\textrm{GeV}} \le m_N \le 500 ~{\textrm{GeV}}$$ 100 GeV ≤ m N ≤ 500 GeV . …”
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349
Extra dimensions with light and heavy neutral leptons: an application to CEνNS
Published 2023-01-01“…Abstract We explore the possibility of relating extra dimensions with light and heavy Dirac-type neutral leptons and develop a framework for testing them in various laboratory experiments. …”
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350
Test of lepton universality with B 0 → K *0 ℓ + ℓ − decays
Published 2017-08-01“…Abstract A test of lepton universality, performed by measuring the ratio of the branching fractions of the B 0 → K *0 μ + μ − and B 0 → K *0 e + e − decays, R K * 0 $$ {R}_{K^{*0}} $$ , is presented. …”
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351
Higgs decays to two leptons and a photon beyond leading order in the SMEFT
Published 2022-11-01“…We present the three-body decay of the Higgs boson into two leptons and a photon to dimension-eight in the Standard Model Effective Field Theory (SMEFT). …”
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352
Electroweak-flavour and quark-lepton unification: a family non-universal path
Published 2023-04-01“…Abstract We present a family-non-universal extension of the Standard Model where the first two families feature both quark-lepton and electroweak-flavour unification, via the SU(4) Sp(4) L Sp(4) R gauge group, whereas quark-lepton unification for the third family is realised à la Pati-Salam. …”
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353
Tests of Charge–Parity Symmetry and Lepton Flavor Conservation in the Top Quark Sector
Published 2023-01-01Subjects: Get full text
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354
Long-lived heavy neutral leptons with a displaced shower signature at CMS
Published 2023-02-01“…Abstract We study the LHC discovery potential in the search for heavy neutral leptons (HNL) with a new signature: a displaced shower in the CMS muon detector, giving rise to a large cluster of hits forming a displaced shower. …”
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355
Soft supersymmetry breaking as the sole origin of neutrino masses and lepton number violation
Published 2024-01-01Subjects: “…Baryon/Lepton Number Violation…”
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356
Measurements of the top quark branching ratios into channels with leptons and quarks with the ATLAS detector
Published 2016“…Measurements of the branching ratios of top quark decays into leptons and jets using events with t[bar over t] (top antitop) pairs are reported. …”
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357
Lepton flavor universality violation without new sources of quark flavor violation
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358
Search for pair production of excited top quarks in the lepton + jets final state
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359
Search in leptonic channels for heavy resonances decaying to long-lived neutral particles
Published 2021“…A search is performed for heavy resonances decaying to two long-lived massive neutral particles, each decaying to leptons. The experimental signature is a distinctive topology consisting of a pair of oppositely charged leptons originating at a separated secondary vertex. …”
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360
Spontaneous CP violation and horizontal symmetry in the MSSM: toward lepton flavor naturalness
Published 2021“…Abstract We study the contributions of supersymmetric models with a U(1) horizontal symmetry and only spontaneous CP breaking to various lepton flavor observables, such as μ → eγ and the electron electric dipole moment. …”
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