R. Ayad

Research interests

Publications

• Test of Lepton-Flavor Universality in B→K*ℓ+ℓ− Decays at Belle

  Physical Review Letters · 2021 · https://doi.org/10.1103/physrevlett.126.161801

• Measurement of the τ lepton polarization and R ( D * ) in the decay B ¯ → D * τ − ν ¯ τ with one-prong hadronic τ decays at Belle

  Physical review. D/Physical review. D. · 2018 · https://doi.org/10.1103/physrevd.97.012004

• Lepton-Flavor-Dependent Angular Analysis of B → K * ℓ + ℓ −

  Physical Review Letters · 2017 · https://doi.org/10.1103/physrevlett.118.111801

• Measurement of the τ Lepton Polarization and R ( D * ) in the Decay B ¯ → D * τ − ν ¯ τ

  Physical Review Letters · 2017 · https://doi.org/10.1103/physrevlett.118.211801

• Search for B → h ν ν ¯ decays with semileptonic tagging at Belle

  Physical review. D/Physical review. D. · 2017 · https://doi.org/10.1103/physrevd.96.091101

• Measurement of the branching ratio of B ¯ 0 → D * + τ − ν ¯ τ relative to B ¯ 0 → D * + ℓ − ν ¯ ℓ decays with a semileptonic tagging method

  Physical review. D/Physical review. D. · 2016 · https://doi.org/10.1103/physrevd.94.072007

• Measurement of the branching ratio of B ¯ → D ( * ) τ − ν ¯ τ relative to B ¯ → D ( * ) ℓ − ν ¯ ℓ decays with hadronic tagging at Belle

  Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields · 2015 · https://doi.org/10.1103/physrevd.92.072014

• Search for a Dark Photon in e + e − Collisions at BaBar

  Physical Review Letters · 2014 · https://doi.org/10.1103/physrevlett.113.201801

• Observation of a new charged charmoniumlike state in B¯0→J/ψK−π+ decays

  Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields · 2014 · https://doi.org/10.1103/physrevd.90.112009

• Search for B → K ( * ) ν ν ¯ and invisible quarkonium decays

  Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields · 2013 · https://doi.org/10.1103/physrevd.87.112005

• Measurement of an excess of B ¯ → D ( * ) τ − ν ¯ τ decays and implications for charged Higgs bosons

  Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields · 2013 · https://doi.org/10.1103/physrevd.88.072012

• Precise measurement of the e + e − → π + π − ( γ ) cross section with the initial-state radiation method at BABAR

  Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields · 2012 · https://doi.org/10.1103/physrevd.86.032013

• Evidence for an Excess of B ¯ → D ( * ) τ − ν ¯ τ Decays

  Physical Review Letters · 2012 · https://doi.org/10.1103/physrevlett.109.101802

• Measurement of branching fractions and rate asymmetries in the rare decays B→K(*)ℓ+ℓ−

  Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields · 2012 · https://doi.org/10.1103/physrevd.86.032012

• Evidence for the decay X ( 3872 ) → J / ψ ω

  Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields · 2010 · https://doi.org/10.1103/physrevd.82.011101

• The construction of the L3 experiment

  Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment · 1990 · https://doi.org/10.1016/0168-9002(90)90250-a

Current projects

No projects listed.