B. Spaan

activity

20012022

most citedMeasurement of the ratio of branching fractions

B (B^{0} \to D^{*+} τ^{-} ν_{τ}) / B (B^{0} \to D^{*+} μ^{-} ν_{μ})

635 citations · 16.9k across the 340 of their papers we have counts for

collaborators

Showing 2021Show all

16 papers · 1 filter

hep-ex2021★ 24 cited

Precision measurement of forward $Z$ boson production in proton-proton collisions at $s = 13$ TeV

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +998

A precision measurement of the $Z$ boson production cross-section at $s = 13$ TeV in the forward region is presented, using $pp$ collision data collected by the LHCb detecto…

hep-ex2021★ 19 cited

Measurement of the photon polarization in $Λ_{b} \to Λ γ$ decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +994

The photon polarization in $b \to s γ$ transitions is measured for the first time in radiative b-baryon decays exploiting the unique spin structure of $Λ_{b} \to Λ γ$ decays. A data s…

hep-ex2021★ 14 cited

Angular analysis of $D^{0} \to π^{+} π^{-} μ^{+} μ^{-}$ and $D^{0} \to K^{+} K^{-} μ^{+} μ^{-}$ decays and search for $C P$ violation

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1003

The first full angular analysis and an updated measurement of the decay-rate $C P$ asymmetry of the $D^{0} \to π^{+} π^{-} μ^{+} μ^{-}$ and $D^{0} \to K^{+} K^{-} μ^{+} μ^{-}$ decays are reported. The analys…

hep-ex2021★ 94 cited

Tests of lepton universality using $B^{0} \to K_{S}^{0} ℓ^{+} ℓ^{-}$ and $B^{+} \to K^{*+} ℓ^{+} ℓ^{-}$ decays

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +997

Tests of lepton universality in $B^{0} \to K_{S}^{0} ℓ^{+} ℓ^{-}$ and $B^{+} \to K^{*+} ℓ^{+} ℓ^{-}$ decays where $ℓ$ is either an electron or a muon are presented. The differential b…

hep-ex2021★ 1 cited

Search for massive long-lived particles decaying semileptonically at sqrt(s)=13 TeV

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +996

A search is performed for massive long-lived particles (LLP) decaying semileptonically into a muon and two quarks. Two kinds of LLP production processes were considered. In the fir…

hep-ex2021★ 52 cited

Simultaneous determination of CKM angle $γ$ and charm mixing parameters

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +994

A combination of measurements sensitive to the $C P$ violation angle $γ$ of the Cabibbo-Kobayashi-Maskawa unitarity triangle and to the charm mixing parameters that describe oscilla…

Precision measurement of forward Z boson production in proton-proton collisions at s​=13 TeV

Measurement of the photon polarization in Λb​→Λγ decays

Angular analysis of D0→π+π−μ+μ− and D0→K+K−μ+μ− decays and search for CP violation

Tests of lepton universality using B0→KS0​ℓ+ℓ− and B+→K∗+ℓ+ℓ− decays