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R. Ayad

Identifiers

  • name variant R. Ayad 0.60 · backfill

Papers (138)

  1. Improved measurement of Born cross sections for $\chi_{bJ}\,\omega$ and $\chi_{bJ}\,(\pi^+\pi^-\pi^0)_{\rm non-\omega}$ ($J$ = 0, 1, 2) at Belle and Belle II hep-ex · 2025 · author #16
  2. Search for $e^+ e^- \to \gamma\chi_{bJ}$ ($J$ = 0, 1, 2) near $\sqrt{s} = 10.746$ GeV at Belle II hep-ex · 2025 · author #18
  3. Search for the lepton-flavor-violating $\tau^{-} \rightarrow e^{\mp} \ell^{\pm} \ell^{\mp}$ decays at Belle II hep-ex · 2025 · author #19
  4. Search for $B^0 \to X(3872) \gamma$ hep-ex · 2019 · author #10
  5. Measurement of $\mathcal{R}(D)$ and $\mathcal{R}(D^{\ast})$ with a semileptonic tagging method hep-ex · 2019 · author #13
  6. Search for $X(3872)$ and $X(3915)$ decay into $\chi_{c1} \pi^0$ in $B$ decays at Belle hep-ex · 2019 · author #7
  7. Evidence for the decay $B^0\to p\bar{p}\pi^0$ hep-ex · 2019 · author #9
  8. Evidence for $B^+ \rightarrow h_c K^+$ and observation of $\eta_c(2S) \to p \bar{p} \pi^+ \pi^-$ hep-ex · 2019 · author #6
  9. Measurement of the $D^{\ast-}$ polarization in the decay $B^0 \to D^{\ast -}\tau^+\nu_{\tau}$ hep-ex · 2019 · author #13
  10. Transverse momentum dependent production cross sections of charged pions, kaons and protons produced in inclusive $e^+e^-$ annihilation at $\sqrt{s}=$ 10.58 GeV hep-ex · 2019 · author #8
  11. Search for the $B \to Y(4260) K, ~Y(4260) \to J/\psi \pi^+\pi^-$ decays hep-ex · 2019 · author #11
  12. Measurements of branching fraction and direct $C\!P$ asymmetry in $B^{\pm}\to K^{0}_{S}K^{0}_{S}K^{\pm}$ and a search for $B^{\pm}\to K^{0}_{S}K^{0}_{S}\pi^{\pm}$ hep-ex · 2018 · author #12
  13. First measurements of absolute branching fractions of $\Xi_c^0$ at Belle hep-ex · 2018 · author #9
  14. Search for the rare decay of $B^+ \to \ell^{\,+} \nu_{\ell} \gamma$ with improved hadronic tagging hep-ex · 2018 · author #11
  15. Observation of $e^+e^- \to \gamma \chi_{c1}$ and search for $e^+e^- \to \gamma \chi_{c0}, \gamma \chi_{c2},$ and $\gamma\eta_c$ at $\sqrt{s}$ near 10.6 GeV at Belle hep-ex · 2018 · author #12
  16. Observation of $\Xi(1620)^0$ and evidence for $\Xi(1690)^0$ in $\Xi_c^+ \rightarrow \Xi^-\pi^+\pi^+$ decays hep-ex · 2018 · author #9
  17. Measurement of time-dependent $CP$ violation in $B^0 \to K^0_S \pi^0 \pi^0$ decays hep-ex · 2018 · author #8
  18. Measurement of the branching fraction and time-dependent $CP$ asymmetry for $B^0\to J/\psi\pi^0$ decays hep-ex · 2018 · author #9
  19. Search for a light CP-odd Higgs boson and low-mass dark matter at the Belle experiment hep-ex · 2018 · author #9
  20. Observation of Transverse $\Lambda/\bar{\Lambda}$ Hyperon Polarization in $e^+e^-$ Annihilation at Belle hep-ex · 2018 · author #12
  21. Study of charmless decays $B^{\pm} \to K^{0}_{S} K^{0}_{S} h^{\pm}$ ($h=K,\pi$) at Belle hep-ex · 2018 · author #13
  22. Observation of $B^{+} \rightarrow p\bar{\Lambda} K^+ K^-$ and $B^{+} \rightarrow \bar{p}\Lambda K^+ K^+$ hep-ex · 2018 · author #13
  23. Measurements of branching fraction and $CP$ asymmetry of the $\bar{B}^{0}(B^{0})\to K^{0}_{S}K^{\mp}\pi^{\pm}$ decay at Belle hep-ex · 2018 · author #13
  24. Measurements of isospin asymmetry and difference of direct $CP$ asymmetries in inclusive $B \to X_s \gamma$ decays hep-ex · 2018 · author #8
  25. Search for the lepton-flavor-violating decay $B^{0}\to K^{\ast 0} \mu^{\pm} e^{\mp}$ hep-ex · 2018 · author #11
  26. Observation of $\Upsilon(2S)\to\gamma \eta_{b}(1S)$ decay hep-ex · 2018 · author #10
  27. Evidence of a structure in $\bar{K}^{0} \Lambda_{c}^{+}$ consistent with a charged $\Xi_c(2930)^{+}$, and updated measurement of $\bar{B}^{0} \to \bar{K}^{0} \Lambda_{c}^{+} \bar{\Lambda}_{c}^{-}$ at Belle hep-ex · 2018 · author #8
  28. Observation of $e^+e^-\to\pi^+\pi^-\pi^0\chi_{b1,2}(1P)$ and search for $e^+e^-\to\phi\chi_{b1,2}(1P)$ at $\sqrt{s}=$10.96---11.05 GeV hep-ex · 2018 · author #9
  29. Observation of an excited $\Omega^-$ baryon hep-ex · 2018 · author #9
  30. Measurement of eta_c(1S), eta_c(2S) and non-resonant eta' pi+ pi- production via two-photon collisions hep-ex · 2018 · author #9
  31. Search for $\Upsilon(1S,2S) \to Z^{+}_{c}Z^{(\prime) -}_{c}$ and $e^{+}e^{-} \to Z^{+}_{c}Z^{(\prime) -}_{c}$ at $\sqrt{s}$ = 10.52, 10.58, and 10.867 GeV hep-ex · 2018 · author #10
  32. Measurement of $\cos{2\beta}$ in $B^{0} \to D^{(*)} h^{0}$ with $D \to K_{S}^{0} \pi^{+} \pi^{-}$ decays by a combined time-dependent Dalitz plot analysis of BaBar and Belle data hep-ex · 2018 · author #16
  33. First evidence for $\cos 2\beta>0$ and resolution of the CKM Unitarity Triangle ambiguity by a time-dependent Dalitz plot analysis of $B^{0} \to D^{(*)} h^{0}$ with $D \to K_{S}^{0} \pi^{+} \pi^{-}$ decays hep-ex · 2018 · author #16
  34. Observation of $\Upsilon(4S)\to \eta' \Upsilon(1S)$ hep-ex · 2018 · author #10
  35. Measurement of Time-dependent $CP$ Asymmetries in $B^{0}\to K_S^0 \eta \gamma$ Decays hep-ex · 2018 · author #11
  36. Measurement of the branching fraction of $B \rightarrow D^{(*)}\pi \ell\nu$ at Belle using hadronic tagging in fully reconstructed events hep-ex · 2018 · author #8
  37. Inclusive study of bottomonium production in association with an $\eta$ meson in $e^+e^-$ annihilations near $\Upsilon(5S)$ hep-ex · 2018 · author #11
  38. Measurement of the Decays $\Lambda_c\to \Sigma\pi\pi$ at Belle hep-ex · 2018 · author #12
  39. Search for $B^{-}\to\mu^{-}\bar\nu_\mu$ Decays at the Belle Experiment hep-ex · 2017 · author #8
  40. Observation of $\Xi_{c}(2930)^0$ and updated measurement of $B^{-} \to K^{-} \Lambda_{c}^{+} \bar{\Lambda}_{c}^{-}$ at Belle hep-ex · 2017 · author #9
  41. Study of $K^0_S$ pair production in single-tag two-photon collisions hep-ex · 2017 · author #12
  42. Search for $CP$ violation in the $D^{+}\to\pi^{+}\pi^{0}$ decay at Belle hep-ex · 2017 · author #11
  43. Observation of Excited $\Omega_c$ Charmed Baryons in $e^+e^-$ Collisions hep-ex · 2017 · author #8
  44. Search for light tetraquark states in $\Upsilon(1S)$ and $\Upsilon(2S)$ decays hep-ex · 2017 · author #11
  45. Measurements of the absolute branching fractions of $B^{+} \to X_{c\bar{c}} K^{+}$ and $B^{+} \to \bar{D}^{(\ast) 0} \pi^{+} $ at Belle hep-ex · 2017 · author #9
  46. Phase I results with the Large Angle Beamstrahlung Monitor (LABM) with SuperKEKB beams physics.acc-ph · 2017 · author #1
  47. Measurement of the $\tau$ lepton polarization and $R(D^*)$ in the decay $\bar{B} \rightarrow D^* \tau^- \bar{\nu}_\tau$ with one-prong hadronic $\tau$ decays at Belle hep-ex · 2017 · author #10
  48. Angular analysis of the $e^+ e^- \to D^{(*) \pm} D^{* \mp}$ process near the open charm threshold using initial-state radiation hep-ex · 2017 · author #7
  49. Study of $\eta$ and dipion transitions in $\Upsilon(4S)$ decays to lower bottomonia hep-ex · 2017 · author #10
  50. Evidence for Isospin Violation and Measurement of $CP$ Asymmetries in $B \to K^{\ast}(892) \gamma$ hep-ex · 2017 · author #10
  51. Search for $\Lambda_c^+\to\phi p \pi^0$ and branching fraction measurement of $\Lambda_c^+\to K^-\pi^+ p \pi^0$ hep-ex · 2017 · author #8
  52. Production cross sections of hyperons and charmed baryons from $e^+e^-$ annihilation near $\sqrt{s} = 10.52$~GeV hep-ex · 2017 · author #10
  53. Search for $CP$ Violation and Measurement of the Branching Fraction in the Decay $D^{0} \to K^0_S K^0_S$ hep-ex · 2017 · author #11
  54. Measurement of the branching fraction and $CP$ asymmetry in $B^{0} \to \pi^{0}\pi^{0}$ decays, and an improved constraint on $\phi_{2}$ hep-ex · 2017 · author #10
  55. Observation of an alternative $\chi_{c0}(2P)$ candidate in $e^+ e^- \rightarrow J/\psi D \bar{D}$ hep-ex · 2017 · author #7
  56. Measurement of the Decays $\boldsymbol{B\to\eta\ell\nu_\ell}$ and $\boldsymbol{B\to\eta^\prime\ell\nu_\ell}$ in Fully Reconstructed Events at Belle hep-ex · 2017 · author #8
  57. First measurement of $\boldsymbol{T}$-odd moments in $\boldsymbol{D^{0} \rightarrow K_{S}^{0} \pi^{+} \pi^{-} \pi^{0}}$ decays hep-ex · 2017 · author #9
  58. Search for $\boldsymbol{B\to h\nu\bar{\nu}}$ decays with semileptonic tagging at Belle hep-ex · 2017 · author #9
  59. Precise determination of the CKM matrix element $\left| V_{cb}\right|$ with $\bar B^0 \to D^{*\,+} \, \ell^- \, \bar \nu_\ell$ decays with hadronic tagging at Belle hep-ex · 2017 · author #13
  60. Lepton-Flavor-Dependent Angular Analysis of $B\to K^\ast \ell^+\ell^-$ hep-ex · 2016 · author #10
  61. Measurement of the $\tau$ lepton polarization and $R(D^*)$ in the decay $\bar{B} \to D^* \tau^- \bar{\nu}_\tau$ hep-ex · 2016 · author #11
  62. Search for $D^{0}$ decays to invisible final states at Belle hep-ex · 2016 · author #8
  63. Search for the $0^{--}$ Glueball in $\Upsilon(1S)$ and $\Upsilon(2S)$ decays hep-ex · 2016 · author #9
  64. Observation of Transverse $\Lambda/\bar{\Lambda}$ Hyperon Polarization in $e^+e^-$ Annihilation at Belle hep-ex · 2016 · author #13
  65. Measurement of Michel Parameters ($\bar\eta$, $\xi\kappa$) in the radiative leptonic decay of tau at Belle hep-ex · 2016 · author #13
  66. Measurement of $CP$ asymmetry in the $D^{0} \to K^0_S K^0_S$ decay at Belle hep-ex · 2016 · author #13
  67. Search for a dark vector gauge boson decaying to $\pi^+ \pi^-$ using $\eta \rightarrow \pi^+\pi^- \gamma$ decays hep-ex · 2016 · author #7
  68. Evidence for the decay $B^{0}\to \eta \eta$ hep-ex · 2016 · author #13
  69. Measurement of the $\tau$ lepton polarization in the decay ${\bar B} \rightarrow D^* \tau^- {\bar \nu_{\tau}}$ hep-ex · 2016 · author #13
  70. Measurement of the branching ratio of $\bar{B}^0 \rightarrow D^{*+} \tau^- \bar{\nu}_{\tau}$ relative to $\bar{B}^0 \rightarrow D^{*+} \ell^- \bar{\nu}_{\ell}$ decays with a semileptonic tagging method hep-ex · 2016 · author #8
  71. Study of Excited $\Xi_c$ States Decaying into $\Xi_c^0$ and $\Xi_c^+$ Baryons hep-ex · 2016 · author #6
  72. Measurement of the CKM angle $\varphi_1$ in $B^0\to\bar{D}{}^{(*)0}h^0$, $\bar{D}{}^0\to K_S^0\pi^+\pi^-$ decays with time-dependent binned Dalitz plot analysis hep-ex · 2016 · author #6
  73. Study of \chi_{bJ}(1P) Properties in the Radiative \Upsilon(2S) Decays hep-ex · 2016 · author #13
  74. Studies of charmed strange baryons in the $\Lambda D$ final state at Belle hep-ex · 2016 · author #7
  75. Angular analysis of $B^0 \to K^\ast(892)^0 \ell^+ \ell^-$ hep-ex · 2016 · author #13
  76. First observation of $\gamma \gamma \to p \bar{p} K^+ K^-$ and search for exotic baryons in $pK$ systems hep-ex · 2016 · author #8
  77. Measurement of the branching ratio of $\bar{B}^0 \rightarrow D^{*+} \tau^- \bar{\nu}_{\tau}$ relative to $\bar{B}^0 \rightarrow D^{*+} \ell^- \bar{\nu}_{\ell}$ decays with a semileptonic tagging method hep-ex · 2016 · author #13
  78. Search for the decay B0 -> phi gamma hep-ex · 2016 · author #10
  79. Observation of $D^0\to \rho^0\gamma$ and search for $CP$ violation in radiative charm decays hep-ex · 2016 · author #9
  80. Study of e+e- => B(*) B(*)-bar pi+- at sqrt(s)=10.866 GeV hep-ex · 2015 · author #7
  81. First Observation of the Decay B0->psi(2S)pi0 hep-ex · 2015 · author #9
  82. Search for the rare decay $D^0\to\gamma\gamma$ at Belle hep-ex · 2015 · author #11
  83. Inclusive and exclusive measurements of $B$ decays to $\chi_{c1}$ and $\chi_{c2}$ at Belle hep-ex · 2015 · author #15
  84. Observation of the decay $B_s^0\rightarrow K^0\overline{K}^0$ hep-ex · 2015 · author #8
  85. Measurement of the decay $B\to D\ell\nu_\ell$ in fully reconstructed events and determination of the Cabibbo-Kobayashi-Maskawa matrix element $|V_{cb}|$ hep-ex · 2015 · author #10
  86. Search for $B^0 \to \pi^- \tau^+ \nu_\tau$ with hadronic tagging at Belle hep-ex · 2015 · author #10
  87. First model-independent Dalitz analysis of $B^0 \to DK^{*0}$, $D\to K_S^0\pi^+\pi^-$ decay hep-ex · 2015 · author #11
  88. Inclusive cross sections for pairs of identified light charged hadrons and for single protons in $e^+e^-$ at $\sqrt{s}=$ 10.58 GeV hep-ex · 2015 · author #8
  89. Energy scan of the $e^+e^- \to h_b(nP)\pi^+\pi^-$ $(n=1,2)$ cross sections and evidence for $\Upsilon(11020)$ decays into charged bottomonium-like states hep-ex · 2015 · author #8
  90. Measurement of the branching ratio of $\bar{B} \to D^{(\ast)} \tau^- \bar{\nu}_\tau$ relative to $\bar{B} \to D^{(\ast)} \ell^- \bar{\nu}_\ell$ decays with hadronic tagging at Belle hep-ex · 2015 · author #13
  91. First observation of the hadronic transition $ \Upsilon(4S) \to \eta h_{b}(1P)$ and new measurement of the $h_b(1P)$ and $\eta_b(1S)$ parameters hep-ex · 2015 · author #9
  92. Measurement of Azimuthal Modulations in the Cross-Section of Di-Pion Pairs in Di-Jet Production from Electron-Positron Annihilation hep-ex · 2015 · author #12
  93. First Observation of CP Violation in B0->D(*)CP h0 Decays by a Combined Time-Dependent Analysis of BaBar and Belle Data hep-ex · 2015 · author #21
  94. Study of $D^{**}$ production and light hadronic states in the $\bar{B}^0 \to D^{*+} \omega \pi^-$ decay hep-ex · 2015 · author #12
  95. Search for B+ -> l+ nu gamma decays with hadronic tagging using the full Belle data sample hep-ex · 2015 · author #14
  96. Measurements of $B\rightarrow \bar{D} D_{s0} ^{*+}(2317)$ decay rates and a search for isospin partners of the $D_{s0}^{*+} (2317)$ hep-ex · 2015 · author #9
  97. Semi-inclusive studies of semileptonic $B_s$ decays at Belle hep-ex · 2015 · author #10
  98. Evidence for the decay B0->eta pi^0 hep-ex · 2015 · author #11
  99. Measurement of the branching fraction of B^+ -> tau^+ nu_tau decays with the semileptonic tagging method hep-ex · 2015 · author #12
  100. Search for $B^+ \to e^+ \nu$ and $B^+ \to \mu^+ \nu$ decays using hadronic tagging hep-ex · 2015 · author #10
  101. Measurement of the amplitude ratio of $B^0 \to D^0K^{*0}$ and $B^0 \to \bar{D^0}K^{*0}$ decays with a model-independent Dalitz plot analysis using $D\to K_S^0\pi^+\pi^-$ decays hep-ex · 2015 · author #12
  102. Search for the decay $B^+\rightarrow\overline{K}{}^{*0}K^{*+}$ at Belle hep-ex · 2015 · author #11
  103. Observation of $X(3872)$ in $B \to X(3872) K\pi$ decays hep-ex · 2015 · author #12
  104. Search for B decays to final states with the eta_c meson hep-ex · 2015 · author #10
  105. Measurements of the $\Upsilon(10860)$ and $\Upsilon(11020)$ resonances via $\sigma(e^+e^-\rightarrow\Upsilon(n{\rm S})\pi^+\pi^-)$ hep-ex · 2015 · author #11
  106. Search for $B_{s}^{0}\rightarrow\gamma\gamma$ and a measurement of the branching fraction for $B_{s}^{0}\rightarrow\phi\gamma$ hep-ex · 2014 · author #11
  107. Measurement of the $\bar{B} \rightarrow X_s \gamma$ Branching Fraction with a Sum of Exclusive Decays hep-ex · 2014 · author #11
  108. Measurement of $B^0 \to D_s^- K^0_S\pi^+$ and $B^+ \to D_s^- K^+K^+$ branching fractions hep-ex · 2014 · author #12
  109. Measurement of $e^+e^- \to \pi^+\pi^-\psi(2S)$ via Initial State Radiation at Belle hep-ex · 2014 · author #11
  110. Evidence of $\Upsilon(1S) \to J/\psi+\chi_{c1}$ and search for double-charmonium production in $\Upsilon(1S)$ and $\Upsilon(2S)$ decays hep-ex · 2014 · author #12
  111. Measurement of the branching fraction of $B^+ \to \tau^+ \nu_\tau$ decays with the semileptonic tagging method and the full Belle data sample hep-ex · 2014 · author #12
  112. Observation of a new charged charmoniumlike state in B -> J/psi K pi decays hep-ex · 2014 · author #10
  113. Observation of the decay $B^0 \to \eta' K^*(892)^0$ hep-ex · 2014 · author #10
  114. Measurement of Time-Dependent $CP$ Violation in $B^0\to \eta'K^0$ Decays hep-ex · 2014 · author #10
  115. Observation of $e^+e^- \to \pi^+ \pi^- \pi^0 \chi_{bJ}$ and search for $X_b \to \omega \Upsilon(1S)$ at $\sqrt{s}\sim 10.867$ GeV hep-ex · 2014 · author #11
  116. Search for $B^+ \to e^+ \nu$ and $B^+ \to \mu^+ \nu$ decays using hadronic tagging hep-ex · 2014 · author #10
  117. The Physics of the B Factories hep-ex · 2014 · author #232
  118. Measurements of the masses and widths of the $\Sigma_{c}(2455)^{0/++}$ and $\Sigma_{c}(2520)^{0/++}$ baryons hep-ex · 2014 · author #9
  119. Measurement of ${D^{0}}$-${\overline{D}{}^{0}}$ Mixing and Search for Indirect $CP$ Violation Using ${D^0\to K_S^0\pi^+\pi^-}$ Decays hep-ex · 2014 · author #8
  120. Search for CP violation in D^0 -> pi^0 pi^0 decays hep-ex · 2014 · author #12
  121. Amplitude analysis of e+e- => Y(nS)pi+pi- at sqrt(s)=10.865 GeV hep-ex · 2014 · author #11
  122. Measurement of the Lepton Forward-Backward Asymmetry in $B \rightarrow X_s \ell^+ \ell^-$ Decays with a Sum of Exclusive Modes hep-ex · 2014 · author #11
  123. Updated Cross Section Measurement of $e^+ e^- \to K^+ K^- J/\psi$ and $K_S^0K_S^0J/\psi$ via Initial State Radiation at Belle hep-ex · 2014 · author #11
  124. Evidence for the decay B0 --> omega omega and search for B0 --> omega phi hep-ex · 2013 · author #68
  125. Study of the decay $\bar{B}^{0}\rightarrow\Lambda_{c}^{+}\bar{p}\pi^{+}\pi^{-}$ and its intermediate states hep-ex · 2013 · author #68
  126. Search for direct CP-violation in singly-Cabibbo suppressed D+- --> K+ K- pi+- decays hep-ex · 2012 · author #71
  127. Branching fraction and form-factor shape measurements of exclusive charmless semileptonic B decays, and determination of |V_{ub}| hep-ex · 2012 · author #71
  128. Observation of Time Reversal Violation in the B0 Meson System hep-ex · 2012 · author #71
  129. Initial-State Radiation Measurement of the e+e- -> pi+pi-pi+pi- Cross Section hep-ex · 2012 · author #77
  130. Search for hadronic decays of a light Higgs boson in the radiative decay Upsilon --> gamma A0 hep-ex · 2011 · author #78
  131. Observation of the baryonic B decay B0bar --> Lambda_c^+ anti-Lambda K- hep-ex · 2011 · author #78
  132. Study of radiative bottomonium transitions using converted photons hep-ex · 2011 · author #79
  133. Evidence for the h_b(1P) meson in the decay Upsilon(3S) --> pi0 h_b(1P) hep-ex · 2011 · author #79
  134. The Cleo Rich Detector physics.ins-det · 2005 · author #2
  135. Negative Ion Drift and Diffusion in a TPC near 1 Bar physics.ins-det · 2004 · author #2
  136. The Cleo III Ring Imaging Cherenkov Detector hep-ex · 2000 · author #2
  137. Performance of the CLEO III LiF-TEA Ring Imaging Cherenkov Detector in a High Energy Muon Beam hep-ex · 1999 · author #2
  138. The CLEO-III Ring Imaging Cherenkov Detector hep-ex · 1999 · author #3

Mentions

  • 1302.0191 #68 · backfill · confidence 0.70 R. Ayad
  • 1212.1856 #71 · backfill · confidence 0.70 R. Ayad
  • 1208.1253 #71 · backfill · confidence 0.70 R. Ayad
  • 1207.5832 #71 · backfill · confidence 0.70 R. Ayad
  • 1201.5677 #77 · backfill · confidence 0.70 R. Ayad
  • 1108.3549 #78 · backfill · confidence 0.70 R. Ayad
  • 1108.3211 #78 · backfill · confidence 0.70 R. Ayad
  • 1104.5254 #79 · backfill · confidence 0.70 R. Ayad
  • 1102.4565 #79 · backfill · confidence 0.70 R. Ayad

Frequent Coauthors