Journal of High Energy Physics, ISSN 1126-6708, 11/2015, Volume 2015, Issue 11, pp. 1 - 26

We address the recent anomalies in semi-leptonic B-meson decays using a model of fermion masses based on the U(2) flavor symmetry. The new contributions to b â†’...

Rare Decays | Beyond Standard Model | Quantum Physics | Quantum Field Theories, String Theory | Classical and Quantum Gravitation, Relativity Theory | Physics | Elementary Particles, Quantum Field Theory | PHYSICS | YUKAWA TEXTURES | CONVERSION | PHYSICS, PARTICLES & FIELDS | Quarks | Models | Analysis | Resveratrol | Exchange | Leptons | Fermions | Flavor (particle physics) | Searching | Decay | Interference | Mathematical models | Physics - High Energy Physics - Phenomenology | Phenomenology | High Energy Physics - Phenomenology | High Energy Physics | [ PHYS.HPHE ] Physics [physics]/High Energy Physics - Phenomenology [hep-ph] | Nuclear and High Energy Physics | Experiment | [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph] | Lattice

Rare Decays | Beyond Standard Model | Quantum Physics | Quantum Field Theories, String Theory | Classical and Quantum Gravitation, Relativity Theory | Physics | Elementary Particles, Quantum Field Theory | PHYSICS | YUKAWA TEXTURES | CONVERSION | PHYSICS, PARTICLES & FIELDS | Quarks | Models | Analysis | Resveratrol | Exchange | Leptons | Fermions | Flavor (particle physics) | Searching | Decay | Interference | Mathematical models | Physics - High Energy Physics - Phenomenology | Phenomenology | High Energy Physics - Phenomenology | High Energy Physics | [ PHYS.HPHE ] Physics [physics]/High Energy Physics - Phenomenology [hep-ph] | Nuclear and High Energy Physics | Experiment | [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph] | Lattice

Journal Article

Physical Review Letters, ISSN 0031-9007, 01/2017, Volume 118, Issue 1, p. 011801

Lepton flavor universality (LFU) in B decays is revisited by considering a class of semileptonic operators defined at a scale. above the electroweak scale v....

R-K | PUZZLES | PHYSICS | PHYSICS, MULTIDISCIPLINARY | VIOLATION | Couplings | Leptons | Flavor (particle physics) | Mathematical analysis | Quantum electrodynamics | Decay | Running | Bosons

R-K | PUZZLES | PHYSICS | PHYSICS, MULTIDISCIPLINARY | VIOLATION | Couplings | Leptons | Flavor (particle physics) | Mathematical analysis | Quantum electrodynamics | Decay | Running | Bosons

Journal Article

Journal of High Energy Physics, ISSN 1126-6708, 10/2015, Volume 2015, Issue 10, pp. 1 - 30

Anomalies in semileptonic B-meson decays present interesting patterns that might be revealing the shape of the new physics to come. Under the assumption that...

Rare Decays | Beyond Standard Model | Quantum Physics | Quantum Field Theories, String Theory | Classical and Quantum Gravitation, Relativity Theory | Physics | B-Physics | Elementary Particles, Quantum Field Theory | FORM-FACTORS | LEPTOQUARKS | PHYSICS | MODEL | PHYSICS, PARTICLES & FIELDS | Charging | Hierarchies | Decay rate | Leptons | Flavor (particle physics) | Decay | Field theory | Complement | Phenomenology | High Energy Physics | Nuclear and High Energy Physics | Experiment | hep-ph | PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Rare Decays | Beyond Standard Model | Quantum Physics | Quantum Field Theories, String Theory | Classical and Quantum Gravitation, Relativity Theory | Physics | B-Physics | Elementary Particles, Quantum Field Theory | FORM-FACTORS | LEPTOQUARKS | PHYSICS | MODEL | PHYSICS, PARTICLES & FIELDS | Charging | Hierarchies | Decay rate | Leptons | Flavor (particle physics) | Decay | Field theory | Complement | Phenomenology | High Energy Physics | Nuclear and High Energy Physics | Experiment | hep-ph | PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Journal Article

Journal of High Energy Physics, ISSN 1126-6708, 7/2015, Volume 2015, Issue 7, pp. 1 - 22

In view of recent experimental indications of violations of Lepton Flavor Universality (LFU) in B decays, we analyze constraints and implications of LFU...

Beyond Standard Model | Quantum Physics | Quantum Field Theories, String Theory | Classical and Quantum Gravitation, Relativity Theory | Physics | B-Physics | Elementary Particles, Quantum Field Theory | VIOLATION | PHYSICS, PARTICLES & FIELDS | Degrees of freedom | Leptons | Flavor (particle physics) | Breaking | Mathematical analysis | Decay | Mathematical models | Vectors (mathematics) | High Energy Physics - Phenomenology | High Energy Physics | Nuclear and High Energy Physics | Experiment | Physics Institute | 530 Physics

Beyond Standard Model | Quantum Physics | Quantum Field Theories, String Theory | Classical and Quantum Gravitation, Relativity Theory | Physics | B-Physics | Elementary Particles, Quantum Field Theory | VIOLATION | PHYSICS, PARTICLES & FIELDS | Degrees of freedom | Leptons | Flavor (particle physics) | Breaking | Mathematical analysis | Decay | Mathematical models | Vectors (mathematics) | High Energy Physics - Phenomenology | High Energy Physics | Nuclear and High Energy Physics | Experiment | Physics Institute | 530 Physics

Journal Article

Journal of High Energy Physics, ISSN 1126-6708, 6/2018, Volume 2018, Issue 6, pp. 1 - 37

Lepton Flavour Universality tests with semileptonic Î› b â€‰â†’â€‰Î› c * decays are important to corroborate the present anomalies in the similar ratios RDâˆ— $$...

Beyond Standard Model | Heavy Quark Physics | Quantum Physics | Quantum Field Theories, String Theory | Classical and Quantum Gravitation, Relativity Theory | Physics | Elementary Particles, Quantum Field Theory | Large Hadron Collider | Leptons | Decay | Quarks | Parameter sensitivity | Form factors | Anomalies

Beyond Standard Model | Heavy Quark Physics | Quantum Physics | Quantum Field Theories, String Theory | Classical and Quantum Gravitation, Relativity Theory | Physics | Elementary Particles, Quantum Field Theory | Large Hadron Collider | Leptons | Decay | Quarks | Parameter sensitivity | Form factors | Anomalies

Journal Article

6.
Full Text
On flavourful Easter eggs for New Physics hunger and lepton flavour universality violation

The European Physical Journal C, ISSN 1434-6044, 10/2017, Volume 77, Issue 10, pp. 1 - 16

Within the standard approach of effective field theory of weak interactions for $$\varDelta B = 1$$ Î”B=1 transitions, we look for possibly unexpected subtle...

Nuclear Physics, Heavy Ions, Hadrons | Measurement Science and Instrumentation | Nuclear Energy | Quantum Field Theories, String Theory | Physics | Elementary Particles, Quantum Field Theory | Astronomy, Astrophysics and Cosmology | ANOMALOUS DIMENSION MATRIX | STANDARD MODEL | WEAK NONLEPTONIC DECAYS | SYMMETRY | GAMMA DECAYS | PREDICTIONS | AMPLITUDES | MU(+)MU(-) | TO-LEADING ORDER | B DECAYS | PHYSICS, PARTICLES & FIELDS | Electromagnetism | Leptons | Field theory | Weak interactions (field theory) | Bayesian analysis | Eggs | Vector currents | Phenomenology | High Energy Physics - Phenomenology | High Energy Physics | Astrophysics | Astrophysics - High Energy Astrophysical Phenomena | Experiment | Nuclear and particle physics. Atomic energy. Radioactivity | High Energy Physics - Experiment | Regular - Theoretical Physics

Nuclear Physics, Heavy Ions, Hadrons | Measurement Science and Instrumentation | Nuclear Energy | Quantum Field Theories, String Theory | Physics | Elementary Particles, Quantum Field Theory | Astronomy, Astrophysics and Cosmology | ANOMALOUS DIMENSION MATRIX | STANDARD MODEL | WEAK NONLEPTONIC DECAYS | SYMMETRY | GAMMA DECAYS | PREDICTIONS | AMPLITUDES | MU(+)MU(-) | TO-LEADING ORDER | B DECAYS | PHYSICS, PARTICLES & FIELDS | Electromagnetism | Leptons | Field theory | Weak interactions (field theory) | Bayesian analysis | Eggs | Vector currents | Phenomenology | High Energy Physics - Phenomenology | High Energy Physics | Astrophysics | Astrophysics - High Energy Astrophysical Phenomena | Experiment | Nuclear and particle physics. Atomic energy. Radioactivity | High Energy Physics - Experiment | Regular - Theoretical Physics

Journal Article

Physical Review Letters, ISSN 0031-9007, 10/2018, Volume 121, Issue 17

Using a data sample corresponding to an integrated luminosity of $2.93\text{ }\text{ }{\mathrm{fb}}^{{-}1}$ taken at a center-of-mass energy of 3.773 GeV with...

branching fraction | PHYSICS OF ELEMENTARY PARTICLES AND FIELDS | leptonic, semileptonic & radiative decays | flavor symmetries | lepton colliders | charmed mesons

branching fraction | PHYSICS OF ELEMENTARY PARTICLES AND FIELDS | leptonic, semileptonic & radiative decays | flavor symmetries | lepton colliders | charmed mesons

Journal Article

PHYSICAL REVIEW D, ISSN 2470-0010, 04/2018, Volume 97, Issue 7

The ratio of branching fractions R(D*(-)) = B(B-0 -> D*(-) tau(+)nu(tau))/(B-0 -> D*(-) mu(+)nu(mu)) is measured using a data sample of proton-proton...

LEPTOQUARKS | ENERGY | SIMULATION | ASTRONOMY & ASTROPHYSICS | PHYSICS, PARTICLES & FIELDS | Physics - High Energy Physics - Experiment

LEPTOQUARKS | ENERGY | SIMULATION | ASTRONOMY & ASTROPHYSICS | PHYSICS, PARTICLES & FIELDS | Physics - High Energy Physics - Experiment

Journal Article

The European Physical Journal C, ISSN 1434-6044, 7/2019, Volume 79, Issue 7, pp. 1 - 12

Motivated by recent experimental measurements on flavour physics, in tension with Standard Model predictions, we perform an updated analysis of new physics...

Nuclear Physics, Heavy Ions, Hadrons | Measurement Science and Instrumentation | Nuclear Energy | Quantum Field Theories, String Theory | Physics | Elementary Particles, Quantum Field Theory | Astronomy, Astrophysics and Cosmology | DECAY | PHYSICS, PARTICLES & FIELDS | Couplings | Standard model (particle physics) | Leptons | Impact analysis | Anomalies | Physics - High Energy Physics - Phenomenology | Lagrange equations | Phenomenological theory (Physics) | Fenomenologia (FÃsica) | Equacions de Lagrange

Nuclear Physics, Heavy Ions, Hadrons | Measurement Science and Instrumentation | Nuclear Energy | Quantum Field Theories, String Theory | Physics | Elementary Particles, Quantum Field Theory | Astronomy, Astrophysics and Cosmology | DECAY | PHYSICS, PARTICLES & FIELDS | Couplings | Standard model (particle physics) | Leptons | Impact analysis | Anomalies | Physics - High Energy Physics - Phenomenology | Lagrange equations | Phenomenological theory (Physics) | Fenomenologia (FÃsica) | Equacions de Lagrange

Journal Article

Physics Letters B, ISSN 0370-2693, 04/2011, Volume 698, Issue 2, pp. 105 - 114

A precision test of lepton flavour universality has been performed by measuring the ratio RK of kaon leptonic decay rates K+â†’e+Î½ and K+â†’Î¼+Î½ in a sample of 59...

Lepton universality | Leptonic kaon decay

Lepton universality | Leptonic kaon decay

Journal Article

European Physical Journal C, ISSN 1434-6044, 05/2017, Volume 77, Issue 5, pp. 1 - 20

The neutrino and Higgs sectors in the SU(2)1Ã—SU(2)2Ã—U(1)Y model with lepton-flavor non-universality are discussed. We show that active neutrinos can get...

Couplings | Tangents | Dark matter | Large Hadron Collider | Leptons | Fermions | Neutrinos | Eigenvalues | Higgs bosons | Scalars | Trigonometric functions | Bosons

Couplings | Tangents | Dark matter | Large Hadron Collider | Leptons | Fermions | Neutrinos | Eigenvalues | Higgs bosons | Scalars | Trigonometric functions | Bosons

Journal Article

Journal of High Energy Physics, ISSN 1029-8479, 7/2019, Volume 2019, Issue 7, pp. 1 - 20

A properly defined and suitably broken U(2) flavour symmetry leads to successful quantitative relations between quark mass ratios and CKM angles. At the same...

Quark Masses and SM Parameters | Beyond Standard Model | Quantum Physics | Quantum Field Theories, String Theory | Classical and Quantum Gravitation, Relativity Theory | Physics | Elementary Particles, Quantum Field Theory | TAU LEPTON | PHYSICS, PARTICLES & FIELDS | Analysis | Quarks | Mass ratios | Flavor (particle physics) | Leptons | Neutral currents | Anomalies

Quark Masses and SM Parameters | Beyond Standard Model | Quantum Physics | Quantum Field Theories, String Theory | Classical and Quantum Gravitation, Relativity Theory | Physics | Elementary Particles, Quantum Field Theory | TAU LEPTON | PHYSICS, PARTICLES & FIELDS | Analysis | Quarks | Mass ratios | Flavor (particle physics) | Leptons | Neutral currents | Anomalies

Journal Article

Journal of High Energy Physics, ISSN 1126-6708, 11/2018, Volume 2018, Issue 11, pp. 1 - 26

The persisting anomalous data in semileptonic B-decays point towards New Physics models exhibiting large sources of Lepton Flavour Universality Violation. In...

Beyond Standard Model | Heavy Quark Physics | Quantum Physics | Quantum Field Theories, String Theory | Classical and Quantum Gravitation, Relativity Theory | Physics | Elementary Particles, Quantum Field Theory | R-K | RARE | PHYSICS | MODEL | B DECAYS | PHYSICS, PARTICLES & FIELDS | Analysis | Quarks | Low energy | Leptons | Coding | Standard data | Physics - High Energy Physics - Phenomenology

Beyond Standard Model | Heavy Quark Physics | Quantum Physics | Quantum Field Theories, String Theory | Classical and Quantum Gravitation, Relativity Theory | Physics | Elementary Particles, Quantum Field Theory | R-K | RARE | PHYSICS | MODEL | B DECAYS | PHYSICS, PARTICLES & FIELDS | Analysis | Quarks | Low energy | Leptons | Coding | Standard data | Physics - High Energy Physics - Phenomenology

Journal Article

Physical Review D, ISSN 2470-0010, 05/2016, Volume 93, Issue 9

We study rare four-body decays of the Z-boson involving at least one neutrino and one charged lepton. Large destructive interferences make these decays very...

NONSTANDARD INTERACTIONS | LIMITS | ASTRONOMY & ASTROPHYSICS | ELASTIC-SCATTERING | MAGNETIC-MOMENT | ELECTRON-NEUTRINO | PHYSICS, PARTICLES & FIELDS | Couplings | Gravitation | Leptons | Flavor (particle physics) | Neutrinos | Decay | Cosmology | Physics - High Energy Physics - Phenomenology

NONSTANDARD INTERACTIONS | LIMITS | ASTRONOMY & ASTROPHYSICS | ELASTIC-SCATTERING | MAGNETIC-MOMENT | ELECTRON-NEUTRINO | PHYSICS, PARTICLES & FIELDS | Couplings | Gravitation | Leptons | Flavor (particle physics) | Neutrinos | Decay | Cosmology | Physics - High Energy Physics - Phenomenology

Journal Article

Journal of High Energy Physics, ISSN 1126-6708, 1/2019, Volume 2019, Issue 1, pp. 1 - 26

We propose a novel strategy to test lepton flavor universality (LFU) in top decays, applicable to top pair production at colliders. Our proposal exploits...

Beyond Standard Model | Heavy Quark Physics | Quantum Physics | Quantum Field Theories, String Theory | Classical and Quantum Gravitation, Relativity Theory | Physics | Elementary Particles, Quantum Field Theory | CHARGED HIGGS BOSONS | TEV | SEARCH | CROSS-SECTION | COLLISIONS | PHYSICS, PARTICLES & FIELDS | Flavor (particle physics) | Leptons | Dependence | Particle decay | Luminosity | Pair production | Quarks

Beyond Standard Model | Heavy Quark Physics | Quantum Physics | Quantum Field Theories, String Theory | Classical and Quantum Gravitation, Relativity Theory | Physics | Elementary Particles, Quantum Field Theory | CHARGED HIGGS BOSONS | TEV | SEARCH | CROSS-SECTION | COLLISIONS | PHYSICS, PARTICLES & FIELDS | Flavor (particle physics) | Leptons | Dependence | Particle decay | Luminosity | Pair production | Quarks

Journal Article