M. Kelsey

activity

20082020

B^{0} \to K^{* 0} μ^{+} μ^{-}

decay using $3\,\mbox{fb}^{-1}$ of integrated luminosity

493 citations · 1.4k across the 18 of their papers we have counts for

collaborators

18 papers

hep-ex2020

First observation of excited $Ω_{b}^{-}$ states

LHCb collaboration, R. Aaij, C. Abellán Beteta +901

We report four narrow peaks in the $Ξ_{b}^{0} K^{-}$ mass spectrum obtained using $pp$ collisions at center-of-mass energies of 7, 8 and 13 TeV, corresponding to a total integrated lumino…

hep-ex2019★ 68 cited

Observation of new resonances in the $Λ_{b}^{0} π^{+} π^{-}$ system

LHCb collaboration, R. Aaij, C. Abellán Beteta +910

We report the observation of a new structure in the $Λ_{b}^{0} π^{+} π^{-}$ spectrum using the full LHCb data set of $pp$ collisions, corresponding to an integrated luminosity of $9\,\mathr…

hep-ex2019★ 52 cited

Amplitude analysis of $B^{\pm} \to π^{\pm} K^{+} K^{-}$ decays

LHCb Collaboration, R. Aaij, C. Abellán Beteta +842

The first amplitude analysis of the $B^{\pm} \to π^{\pm} K^{+} K^{-}$ decay is reported based on a data sample corresponding to an integrated luminosity of 3.0 fb $^{- 1}$ of $pp$ collisions…

hep-ex2018★ 10 cited

Search for lepton-flavour-violating decays of Higgs-like bosons

LHCb collaboration, R. Aaij, C. Abellán Beteta +835

A search is presented for a Higgs-like boson with mass in the range 45 to 195 GeV/ $c^{2}$ decaying into a muon and a tau lepton. The dataset consists of proton-proton interactions at…

hep-ex2017★ 35 cited

Evidence for the rare decay $Σ^{+} \to p μ^{+} μ^{-}$

LHCb collaboration, R. Aaij, B. Adeva +791

A search for the rare decay $Σ^{+} \to p μ^{+} μ^{-}$ is performed using $pp$ collision data recorded by the LHCb experiment at centre-of-mass energies $s = 7$ and $8$ TeV, corres…

hep-ex2017★ 312 cited

Test of Lepton Flavor Universality by the measurement of the $B^{0} \to D^{*-} τ^{+} ν_{τ}$ branching fraction using three-prong $τ$ decays

LHCb collaboration, R. Aaij, B. Adeva +806

The ratio of branching fractions $R (D^{*-}) \equiv B (B^{0} \to D^{*-} τ^{+} ν_{τ}) / B (B^{0} \to D^{*-} μ^{+} ν_{μ})$ is measured using a data sample of proton-proton colli…

hep-ex2016★ 144 cited

Search for long-lived scalar particles in $B^{+} \to K^{+} χ (μ^{+} μ^{-})$ decays

LHCb collaboration, R. Aaij, B. Adeva +764

A search for a long-lived scalar particle $χ$ is performed, looking for the decay $B^{+} \to K^{+} χ$ with $χ \to μ^{+} μ^{-}$ in $pp$ collision data corresponding to an integrated lumin…

hep-ex2016★ 71 cited

Search for massive long-lived particles decaying semileptonically in the LHCb detector

LHCb collaboration, R. Aaij, B. Adeva +767

A search is presented for massive long-lived particles decaying into a muon and two quarks. The dataset consists of proton-proton interactions at centre-of-mass energies of 7 and 8…

hep-ex2016★ 25 cited

Measurement of forward $W$ and $Z$ boson production in association with jets in proton-proton collisions at $s = 8$ TeV

LHCb collaboration, R. Aaij, C. Abellán Beteta +739

The production of $W$ and $Z$ bosons in association with jets is studied in the forward region of proton-proton collisions collected at a centre-of-mass energy of 8 TeV by the LHCb…

hep-ex2015★ 493 cited

Angular analysis of the $B^{0} \to K^{* 0} μ^{+} μ^{-}$ decay using $3\,\mbox{fb}^{-1}$ of integrated luminosity

LHCb collaboration, R. Aaij, C. Abellán Beteta +730

An angular analysis of the $B^{0} \to K^{* 0} (\to K^{+} π^{-}) μ^{+} μ^{-}$ decay is presented. The dataset corresponds to an integrated luminosity of $3.0\,{\mbox{fb}^{…

hep-ex2015★ 22 cited

Measurement of the time-dependent CP asymmetries in $B_{s}^{0} \to J / ψ K_{S}^{0}$

LHCb collaboration, R. Aaij, B. Adeva +699

The first measurement of decay-time-dependent CP asymmetries in the decay $B_{s}^{0} \to J / ψ K_{S}^{0}$ and an updated measurement of the ratio of branching fractions $\mathcal…

hep-ex2014★ 46 cited

Measurement of the CP-violating phase $ϕ_{s}$ in $B ˉ_{s}^{0} \to D_{s}^{+} D_{s}^{-}$ decays

LHCb collaboration, R. Aaij, C. Abellán Beteta +703

We present a measurement of the $C P$ -violating weak mixing phase $ϕ_{s}$ using the decay $B ˉ_{s}^{0} \to D_{s}^{+} D_{s}^{-}$ in a data sample corresponding to $3.0$ fb $^{- 1}$ of…

hep-ex2014★ 17 cited

Observation of $B_{s}^{0} \to K^{\pm} K^{\mp}$ and evidence for $B_{s}^{0} \to K^{-} π^{+}$ decays

LHCb collaboration, R. Aaij, B. Adeva +700

Measurements of the branching fractions of $B_{s}^{0} \to K^{*\pm} K^{\mp}$ and $B_{s}^{0} \to K^{*\pm} π^{\mp}$ decays are performed using a data sample corresponding to $1.0 fb^{- 1}$ o…

hep-ex2014★ 49 cited

Study of beauty hadron decays into pairs of charm hadrons

LHCb collaboration, R. Aaij, A. Abba +694

First observations of the decays $Λ_{b}^{0} \to Λ_{c}^{+} D_{(s)}^{-}$ are reported using data corresponding to an integrated luminosity of $3 fb^{- 1}$ collected at 7 and 8 TeV center…

hep-ex2011

Observation and study of the baryonic B-meson decays B to D(*) p pbar (pi) (pi)

The BABAR Collaboration, del Amo Sanchez, others

We present results for B-meson decay modes involving a charm meson, protons, and pions using 455 x 10^6 BBbar pairs recorded by the BaBar detector at the SLAC PEP-II asymmetric-ene…

hep-ex2009

Observation and study of baryonic B decays: B -> D() p pbar, D() p pbar pi, and D(*) p pbar pi pi

The BABAR Collaboration, B. Aubert

We present a study of ten B-meson decays to a D(*), a proton-antiproton pair, and a system of up to two pions using BaBar's data set of 455x10^6 BBbar pairs. Four of the modes (B0b…

hep-ex2009★ 13 cited

Measurement of Time-Dependent CP Asymmetry in B0->ccbar K(*)0 Decays

The BABAR Collaboration, B. Aubert

We present updated measurements of time-dependent CP asymmetries in fully reconstructed neutral B decays containing a charmonium meson. The measurements reported here use a data sa…

hep-ex2008

Search for B+ meson decay to a1+ K*0

The BABAR Collaboration, B. Aubert

We present the preliminary result of a search for the decay B+- --> a1+-K*0. The data, collected with the BaBar detector at the Stanford Linear Accelerator Center, represent 465 mi…

First observation of excited Ωb−​ states

Observation of new resonances in the Λb0​π+π− system

Amplitude analysis of B±→π±K+K− decays

Search for lepton-flavour-violating decays of Higgs-like bosons

Evidence for the rare decay Σ+→pμ+μ−

Test of Lepton Flavor Universality by the measurement of the B0→D∗−τ+ντ​ branching fraction using three-prong τ decays

Search for long-lived scalar particles in B+→K+χ(μ+μ−) decays

Search for massive long-lived particles decaying semileptonically in the LHCb detector

Measurement of forward W and Z boson production in association with jets in proton-proton collisions at s​=8 TeV

Angular analysis of the B0→K∗0μ+μ− decay using $3\,\mbox{fb}^{-1}$ of integrated luminosity

Measurement of the time-dependent CP asymmetries in Bs0​→J/ψKS0​

Measurement of the CP-violating phase ϕs​ in Bˉs0​→Ds+​Ds−​ decays

Observation of Bs0​→K∗±K∓ and evidence for Bs0​→K∗−π+ decays

Study of beauty hadron decays into pairs of charm hadrons

Observation and study of the baryonic B-meson decays B to D(*) p pbar (pi) (pi)

Observation and study of baryonic B decays: B -> D(*) p pbar, D(*) p pbar pi, and D(*) p pbar pi pi

Measurement of Time-Dependent CP Asymmetry in B0->ccbar K(*)0 Decays

Search for B+ meson decay to a1+ K*0

First observation of excited $Ω_{b}^{-}$ states

Observation of new resonances in the $Λ_{b}^{0} π^{+} π^{-}$ system

Amplitude analysis of $B^{\pm} \to π^{\pm} K^{+} K^{-}$ decays

Evidence for the rare decay $Σ^{+} \to p μ^{+} μ^{-}$

Test of Lepton Flavor Universality by the measurement of the $B^{0} \to D^{*-} τ^{+} ν_{τ}$ branching fraction using three-prong $τ$ decays

Search for long-lived scalar particles in $B^{+} \to K^{+} χ (μ^{+} μ^{-})$ decays

Measurement of forward $W$ and $Z$ boson production in association with jets in proton-proton collisions at $s = 8$ TeV

Angular analysis of the $B^{0} \to K^{* 0} μ^{+} μ^{-}$ decay using $3\,\mbox{fb}^{-1}$ of integrated luminosity

Measurement of the time-dependent CP asymmetries in $B_{s}^{0} \to J / ψ K_{S}^{0}$

Measurement of the CP-violating phase $ϕ_{s}$ in $B ˉ_{s}^{0} \to D_{s}^{+} D_{s}^{-}$ decays

Observation of $B_{s}^{0} \to K^{\pm} K^{\mp}$ and evidence for $B_{s}^{0} \to K^{-} π^{+}$ decays

Observation and study of baryonic B decays: B -> D() p pbar, D() p pbar pi, and D(*) p pbar pi pi