Exploring wrong sign scenarios in the Yukawa-Aligned 2HDM by Shinya Kanemura, Tanmoy Mondal, Kei Yagyu

“…In the WS scenario, Yukawa couplings for down-type quarks and/or charged leptons have an opposite sign as compared to those of the Higgs boson in the standard model, which can be consistent with current flavor data and the Higgs signal strengths. …”
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Scalar leptoquarks at the LHC and flavour anomalies: a comparison of pair-production modes at NLO-QCD by Christoph Borschensky, Benjamin Fuks, Adil Jueid, Anna Kulesza

“…Abstract We analyse scalar leptoquark pair production at the LHC with predictions including t-channel lepton exchange contributions up to next-to-leading order (NLO) in QCD. …”
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Machine-learned exclusion limits without binning by Ernesto Arganda, Andres D. Perez, Martín de los Rios, Rosa María Sandá Seoane

“…Later, we apply the method to two cases of interest at the LHC: a search for exotic Higgs bosons, and a $$Z'$$ Z ′ boson decaying into lepton pairs. In contrast to physical-based quantities, the typical fluctuations of the ML outputs give non-smooth probability distributions for pure-signal and pure-background samples. …”
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Dark Matter and Muon (g − 2) from a Discrete Z4 Symmetric Model by Simran Arora, Bhag Chand Chauhan

“…We extend the model with a vector-like lepton (VLL) triplet in order to explain muon (g − 2). …”
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Probing Higgs portals with matrix-element based kinematic discriminants in ZZ → 4ℓ production by Ulrich Haisch, Gabriël Koole

“…It is shown that by using a matrix-element based kinematic discriminant the reach of the high-luminosity option of the Large Hadron Collider (LHC) can be significantly enhanced compared to studies that are based on measurements of the four-lepton invariant mass spectrum alone. We also analyse the potential of the high-energy upgrade of the LHC and a Future Circular Collider in constraining new physics that couples to |H| 2. …”
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SMEFT analysis of m W by Emanuele Bagnaschi, John Ellis, Maeve Madigan, Ken Mimasu, Veronica Sanz, Tevong You

“…In particular, the global fit favours either a singlet Z′ vector boson, a scalar electroweak triplet with zero hypercharge, or a vector electroweak triplet with unit hypercharge, followed by a singlet heavy neutral lepton, all with masses in the multi-TeV range for unit coupling.…”
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Drell-Yan production in third-generation gauge vector leptoquark models at NLO+PS in QCD by Ulrich Haisch, Luc Schnell, Stefan Schulte

“…Abstract Motivated by the long-standing hints of lepton-flavour non-universality in the b → cℓν and b → sℓ + ℓ − channels, we study Drell-Yan ditau production at the Large Hadron Collider (LHC). …”
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Measurements of μ → 3e decay with polarised muons as a probe of new physics by P.D. Bolton, S.T. Petcov

“…Working within the Standard Model effective field theory approach, we examine the possibility to test charged lepton flavour violating (cLFV) new physics (NP) by angular measurements of the outgoing electron and positrons in the polarised μ+→e+e+e− decay. …”
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Fingerprinting CP-violating New Physics with B → Kμ + μ − by Robert Fleischer, Eleftheria Malami, Anders Rehult, K. Keri Vos

“…Finally, New Physics could couple differently to muons and electrons, as probed through the lepton flavour universality ratio R K . We discuss these effects in the presence of CP violation and present a new way to measure the direct CP asymmetries of the B → Ke + e − channels.…”
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Phenomenology at the large hadron collider with deep learning: the case of vector-like quarks decaying to light jets by Felipe F. Freitas, João Gonçalves, António P. Morais, Roman Pasechnik

“…A particular focus is given to pair-production topologies of vector-like quarks (VLQs) at the LHC, in a multi-jet plus a charged lepton and a missing energy signature. We employ Deep Learning methods and techniques based in evolutive algorithms that optimize hyper-parameters in the neural network construction, whose objective is to maximise the Asimov estimate for distinct VLQ masses. …”
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First-order processes of the de Sitter QED in the rest frame vacuum by Ion I. Cotăescu

“…This vacuum gives rise to a new phenomenology favouring the transitions between neutral states, i.e. the pair creation from a photon and the lepton creation from vacuum, while the transitions between charged states are inhibited. …”
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Generalized μ–τ symmetry and discrete subgroups of O(3) by Anjan S. Joshipura, Ketan M. Patel

“…The generalized μ–τ interchange symmetry in the leptonic mixing matrix U corresponds to the relations: |Uμi|=|Uτi| with i=1,2,3. …”
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SU(6) gauge-Higgs grand unification: minimal viable models and flavor by Andrei Angelescu, Andreas Bally, Florian Goertz, Sascha Weber

“…We perform a detailed study of quark- and lepton-flavor constraints (which are intimately related due to the GUT nature) together with an analysis of the Higgs potential which arises at the loop level. …”
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Light dilaton in rare meson decays and extraction of its CP property by Sudhakantha Girmohanta, Yuichiro Nakai, Yoshihiro Shigekami, Kohsaku Tobioka

“…We utilize this fact to search for the dilaton signature at a lepton collider such as the ongoing Belle II experiment. …”
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Measurement of the production cross section for a W boson in association with a charm quark in proton–proton collisions at $$\sqrt{s} = 13\,\hbox {TeV}$$ s = 13 TeV by CMS Collaboration

“…The W bosons are identified through their leptonic decays to an electron or a muon, and a neutrino. …”
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A viable $$L_e-L_\mu $$ L e - L μ model with $$\mu \rightarrow e$$ μ → e violation by Marco Ardu, Fiona Kirk

“…Abstract We extend the Standard Model gauge group by $$U(1)_{L_e-L_\mu }$$ U ( 1 ) L e - L μ and introduce two scalars, a doublet and a singlet, that are charged under this new group and have lepton flavour violating couplings. Since in this model $$\mu \rightarrow e$$ μ → e processes can only be mediated by $$\mu \rightarrow \tau \times \tau \rightarrow e$$ μ → τ × τ → e interactions, bounds from $$\mu \rightarrow e$$ μ → e transitions can be avoided while allowing for accessible new physics. …”
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The W boson mass weighs in on the non-standard Higgs by Giacomo Cacciapaglia, Francesco Sannino

“…The needed composite scale between 2 and 3 TeV can also explain the muon g-2 anomaly, as well as possible violations of lepton flavour universality.…”
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Energy Resolution Studies in Simulation for the IDEA Dual-Readout Calorimeter Prototype by Andreas Loeschcke Centeno

“…Precision measurements of <i>Z</i>, <i>W</i>, and <i>H</i> decays at the next generation of circular lepton colliders will require excellent energy resolution for both electromagnetic and hadronic showers. …”
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Proton decay and axion dark matter in SO(10) grand unification via minimal left–right symmetry by Yuta Hamada, Masahiro Ibe, Yu Muramatsu, Kin-ya Oda, Norimi Yokozaki

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CMB imprints of high scale non-thermal leptogenesis by Anish Ghoshal, Dibyendu Nanda, Abhijit Kumar Saha

“…We argue that non-thermal production of baryon (lepton) asymmetry from subsequent decays of inflaton to heavy right-handed neutrinos (RHN) and RHN to SM leptons is sensitive to the reheating dynamics in the early Universe after the end of inflation. …”
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