Search Results - "Andreas Crivellin"

Flavor phenomenology of the leptoquark singlet-triplet model by Crivellin, Andreas, Müller, Dario, Saturnino, Francesco

“…A bstract In recent years, experiments revealed intriguing hints for new physics (NP) in semi-leptonic B decays. Both in charged current processes, involving b…”
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Consequences of chirally enhanced explanations of (g − 2)μ for h → μμ and Z → μμ by Crivellin, Andreas, Hoferichter, Martin

“…A bstract With the long-standing tension between experiment and Standard-Model (SM) prediction in the anomalous magnetic moment of the muon a μ recently…”
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Hints of lepton flavor universality violations by Crivellin, Andreas, Hoferichter, Martin

“…Mounting evidence shows where the standard model may be incomplete…”
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Simultaneous explanation of R(D(∗)) and b→sμ+μ−: the last scalar leptoquarks standing by Crivellin, Andreas, Müller, Dario, Ota, Toshihiko

“…A bstract Over the past years, experiments accumulated intriguing hints for new physics (NP) in flavor observables, namely in the anomalous magnetic moment of…”
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Global electroweak fit and vector-like leptons in light of the Cabibbo angle anomaly by Crivellin, Andreas, Kirk, Fiona, Manzari, Claudio Andrea, Montull, Marc

“…A bstract The “Cabibbo Angle Anomaly” (CAA) originates from the disagreement between the CKM elements V ud and V us extracted from superallowed beta and kaon…”
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Fermi Constant from Muon Decay Versus Electroweak Fits and Cabibbo-Kobayashi-Maskawa Unitarity by Crivellin, Andreas, Hoferichter, Martin, Manzari, Claudio Andrea

“…The Fermi constant GF is extremely well measured through the muon lifetime, defining one of the key fundamental parameters in the standard model (SM)…”
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Perturbed Lepton-Specific Two-Higgs-Doublet Model Facing Experimental Hints for Physics beyond the Standard Model by Crivellin, Andreas, Heeck, Julian, Stoffer, Peter

“…BABAR, Belle, and LHCb Collaborations report evidence for new physics in B→Dτν and B→D^{*}τν of approximately 3.8σ. There is also the long lasting discrepancy…”
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Scalar leptoquarks in leptonic processes by Crivellin, Andreas, Greub, Christoph, Müller, Dario, Saturnino, Francesco

“…A bstract Leptoquarks are hypothetical new particles, which couple quarks directly to leptons. They experienced a renaissance in recent years as they are prime…”
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First-generation new physics in simplified models: from low-energy parity violation to the LHC by Crivellin, Andreas, Hoferichter, Martin, Kirk, Matthew, Manzari, Claudio Andrea, Schnell, Luc

“…A bstract New-physics (NP) constraints on first-generation quark-lepton interactions are particularly interesting given the large number of complementary…”
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Scrutinizing CKM unitarity with a new measurement of the Kμ3/Kμ2 branching fraction by Cirigliano, Vincenzo, Crivellin, Andreas, Hoferichter, Martin, Moulson, Matthew

“…Precision tests of first-row unitarity of the Cabibbo–Kobayashi–Maskawa matrix currently display two intriguing tensions, both at the 3σ level. First,…”
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Global Fit to Modified Neutrino Couplings and the Cabibbo-Angle Anomaly by Coutinho, Antonio M., Crivellin, Andreas, Manzari, Claudio Andrea

“…Recently, discrepancies of up to 4σ between the different determinations of the Cabibbo angle were observed. In this context, we point out that this…”
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Emerging patterns of New Physics with and without Lepton Flavour Universal contributions by Algueró, Marcel, Capdevila, Bernat, Crivellin, Andreas, Descotes-Genon, Sébastien, Masjuan, Pere, Matias, Joaquim, Virto, Javier

“…We perform a model-independent global fit to b → s ℓ + ℓ - observables to confirm existing New Physics (NP) patterns (or scenarios) and to identify new ones…”
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Loop effects of heavy new scalars and fermions in b → sμ+μ by Arnan, Pere, Crivellin, Andreas, Hofer, Lars, Mescia, Federico

“…A bstract Recent measurements of b → sμ + μ − processes at LHCb and BELLE have revealed tensions at the 2 − 3 σ level between the Standard Model (SM)…”
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Implications of SU(2)L gauge invariance for constraints on Lorentz violation by Crivellin, Andreas, Kirk, Fiona, Schreck, Marco

“…A bstract Lorentz invariance may only be broken far above the electroweak scale, since violations are experimentally stringently constrained. Therefore, the…”
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Global fit of modified quark couplings to EW gauge bosons and vector-like quarks in light of the Cabibbo angle anomaly by Crivellin, Andreas, Kirk, Matthew, Kitahara, Teppei, Mescia, Federico

“…A bstract There are two tensions related to the Cabibbo angle of the CKM matrix. First, the determinations of V us from K μ 2 , K ℓ 3 , and τ decays disagree…”
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Rescattering effects in nucleon-to-meson form factors and application to tau-lepton-induced proton decay by Crivellin, Andreas, Hoferichter, Martin

“…Nucleon decays put extremely stringent bounds on baryon-number-violating interactions. However, in case the corresponding operators involve only τ leptons, the…”
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Explanation of the excesses in associated di-photon production at 152 GeV in 2HDM by Banik, Sumit, Crivellin, Andreas

“…A bstract Statistically significant excesses exist at around 152 GeV in associated di-photon production ( γγ + X ) in the sidebands of SM Higgs analyses of…”
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Global analysis of leptophilic Z′ bosons by Buras, Andrzej J., Crivellin, Andreas, Kirk, Fiona, Manzari, Claudio Andrea, Montull, Marc

“…A bstract New neutral heavy gauge bosons ( Z′ ) are predicted within many extensions of the Standard Model. While in case they couple to quarks the LHC bounds…”
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b → sℓ+ℓ− transitions in two-Higgs-doublet models by Crivellin, Andreas, Müller, Dario, Wiegand, Christoph

“…A bstract In this article we study b → sμ + μ − transitions and possible correlations with the anomalous magnetic moment of the muon ( a μ ) within…”
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Leptoquarks in oblique corrections and Higgs signal strength: status and prospects by Crivellin, Andreas, Müller, Dario, Saturnino, Francesco

“…A bstract Leptoquarks (LQs) are predicted within Grand Unified Theories and are well motivated by the current flavor anomalies. In this article we investigate…”
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