P. Szczypka

activity

20062016

most citedTest of lepton universality using

B^{+} \to K^{+} ℓ^{+} ℓ^{-}

decays

952 citations · 2.5k across the 23 of their papers we have counts for

collaborators

Showing hep-exShow all

21 papers · 1 filter

hep-ex2016★ 11 cited

Observation of the $B_{s}^{0} \to J / ψ ϕϕ$ decay

LHCb collaboration, R. Aaij, B. Adeva +721

The $B_{s}^{0} \to J / ψ ϕϕ$ decay is observed in $pp$ collision data corresponding to an integrated luminosity of 3 fb $^{- 1}$ recorded by the LHCb detector at centre-of-mass ener…

hep-ex2015★ 27 cited

Measurement of $C P$ violation parameters and polarisation fractions in $B_{s}^{0} \to J / ψ K^{* 0}$ decays

LHCb collaboration, R. Aaij, B. Adeva +721

The first measurement of $C P$ asymmetries in the decay $B_{s}^{0} \to J / ψ K^{*} (892)^{0}$ and an updated measurement of its branching fraction and polarisation fractions…

hep-ex2015★ 25 cited

Measurement of the branching fraction ratio $B (B_{c}^{+} \to ψ (2 S) π^{+}) / B (B_{c}^{+} \to J / ψ π^{+})$

LHCb collaboration, R. Aaij, B. Adeva +721

Using $pp$ collision data collected by LHCb at center-of-mass energies $s$ = 7 TeV and 8 TeV, corresponding to an integrated luminosity of 3 fb $^{- 1}$ , the ratio of the bran…

hep-ex2015★ 313 cited

Angular analysis and differential branching fraction of the decay $B_{s}^{0} \to ϕ μ^{+} μ^{-}$

LHCb collaboration, R. Aaij, B. Adeva +722

An angular analysis and a measurement of the differential branching fraction of the decay $B_{s}^{0} \to ϕ μ^{+} μ^{-}$ are presented, using data corresponding to an integrated luminosity of $…

hep-ex2015★ 98 cited

Measurement of the exclusive $Υ$ production cross-section in $pp$ collisions at $s =$ 7 TeV and 8 TeV

LHCb collaboration, R. Aaij, B. Adeva +705

A study is presented of central exclusive production of $Υ (n S)$ states, where the $Υ (n S)$ resonances decay to the $μ^{+} μ^{-}$ final state, using $pp$ collision data recorded by the LH…

hep-ex2015★ 117 cited

Search for the $Λ_{b} \to Λ η^{'}$ and $Λ_{b} \to Λ η$ decays with the LHCb detector

LHCb collaboration, R. Aaij, B. Adeva +716

A search is performed for the as yet unobserved baryonic $Λ_{b} \to Λ η^{'}$ and $Λ_{b} \to Λ η$ decays with 3 $f b^{- 1}$ of proton-proton collision data recorded by the…

hep-ex2015★ 50 cited

Amplitude analysis of $B^{0} \to D ˉ^{0} K^{+} π^{-}$ decays

LHCb collaboration, R. Aaij, B. Adeva +716

The Dalitz plot distribution of $B^{0} \to D ˉ^{0} K^{+} π^{-}$ decays is studied using a data sample corresponding to $3.0 fb^{- 1}$ of $pp$ collision data recorded by the…

hep-ex2015★ 26 cited

A study of $C P$ violation in $B^{\mp} \to D h^{\mp}$ ( $h = K, π$ ) with the modes $D \to K^{\mp} π^{\pm} π^{0}$ , $D \to π^{+} π^{-} π^{0}$ and $D \to K^{+} K^{-} π^{0}$

LHCb collaboration, R. Aaij, B. Adeva +707

An analysis of the decays of $B^{\mp} \to D K^{\mp}$ and $B^{\mp} \to D π^{\mp}$ is presented in which the $D$ meson is reconstructed in the three-body final states $K^\mp…

hep-ex2014★ 21 cited

Measurement of the Z+b-jet cross-section in pp collisions at $s = 7 Te V$ in the forward region

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

The associated production of a Z boson or an off-shell photon $γ^{*}$ with a bottom quark in the forward region is studied using proton-proton collisions at a centre-of-mass energy o…

hep-ex2014★ 38 cited

Measurement of the B0bar-B0 and Bsbar-Bs production asymmetries in pp collisions at sqrt(s)=7 TeV

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

The B0bar-B0 and Bsbar-Bs production asymmetries, AP(B0) and AP(Bs), are measured by means of a time-dependent analysis of B0 -> J/ψK*0, B0 -> D- pi+ and Bs -> Ds- pi+ decays, usin…

hep-ex2014★ 130 cited

Dalitz plot analysis of $B_{s}^{0} \to D ˉ^{0} K^{-} π^{+}$ decays

LHCb collaboration, R. Aaij, B. Adeva +701

The resonant substructure of $B_{s}^{0} \to D ˉ^{0} K^{-} π^{+}$ decays is studied with the Dalitz plot analysis technique. The study is based on a data sample corresponding to a…

hep-ex2014★ 952 cited

Test of lepton universality using $B^{+} \to K^{+} ℓ^{+} ℓ^{-}$ decays

LHCb collaboration, R. Aaij, B. Adeva +697

A measurement of the ratio of the branching fractions of the $B^{+} \to K^{+} μ^{+} μ^{-}$ and $B^{+} \to K^{+} e^{+} e^{-}$ decays is presented using proton-proton colli…

hep-ex2014★ 92 cited

Measurement of the resonant and CP components in $B^{0} \to J / ψ π^{+} π^{-}$ decays

LHCb collaboration, R. Aaij, B. Adeva +693

The resonant structure of the reaction $B^{0} \to J / ψ π^{+} π^{-}$ is studied using data from 3 fb $^{- 1}$ of integrated luminosity collected by the LHCb experiment, one-t…

hep-ex2014★ 165 cited

Evidence for the decay $X (3872) \to ψ (2 S) γ$

LHCb collaboration, R. Aaij, B. Adeva +692

Evidence for the decay mode $X (3872) \to ψ (2 S) γ$ in $B^{+} \to X (3872) K^{+}$ decays is found with a significance of 4.4 standard deviations. The analysis is based on a dat…

hep-ex2013★ 12 cited

Measurement of the charge asymmetry in $B^{\pm} \to ϕ K^{\pm}$ and search for $B^{\pm} \to ϕ π^{\pm}$ decays

LHCb collaboration, R. Aaij, B. Adeva +655

The \CP-violating charge asymmetry in $B^{\pm} \to ϕ K^{\pm}$ decays is measured in a sample of $pp$ collisions at 7 TeV centre-of-mass energy, corresponding to an integrated…

hep-ex2013★ 18 cited

Observation of the decay $B_{s}^{0} \to D ˉ^{0} ϕ$

The LHCb collaboration, R. Aaij, B. Adeva +655

First observation of the decay Bs -> D0bar phi is reported using pp collision data, corresponding to an integrated luminosity of 1.0 fb^-1, collected by the LHCb experiment at a ce…

hep-ex2013★ 37 cited

Search for the lepton-flavour violating decays $B_{s}^{0} \to e^{\pm} μ^{\mp}$ and $B^{0} \to e^{\pm} μ^{\mp}$

LHCb collaboration, R. Aaij, B. Adeva +650

A search for the lepton-flavour violating decays $B_{s}^{0} \to e^{\pm} μ^{\mp}$ and $B^{0} \to e^{\pm} μ^{\mp}$ is performed with a data sample, corresponding to an integrated luminosit…

hep-ex2013★ 91 cited

Observation of $B_{c}^{+} \to J / ψ D_{s}^{+}$ and $B_{c}^{+} \to J / ψ D_{s}^{*+}$ decays

LHCb collaboration, R. Aaij, C. Abellan Beteta +623

The decays $B_{c}^{+} \to J / ψ D_{s}^{+}$ and $B_{c}^{+} \to J / ψ D_{s}^{*+}$ are observed for the first time using a dataset, corresponding to an integrated luminosity of 3 $f b^{- 1}$ …

hep-ex2011★ 29 cited

Measurement of the inclusive phi cross-section in pp collisions at sqrt(s) = 7 TeV

LHCb Collaboration, R. Aaij, B. Adeva +551

The cross-section for inclusive phi meson production in pp collisions at a centre-of-mass energy of sqrt(s) = 7 TeV has been measured with the LHCb detector at the Large Hadron Col…

hep-ex2010★ 164 cited

Measurement of sigma(pp -> b anti-b X) at \sqrt(s)=7 TeV in the forward region

LHCb Collaboration, R. Aaij, C. Abellan Beteta +628

Decays of b hadrons into final states containing a D0 meson and a muon are used to measure the b anti-b production cross-section in proton-proton collisions at a centre-of-mass ene…

hep-ex2009★ 40 cited

Roadmap for selected key measurements of LHCb

The LHCb Collaboration, B. Adeva, M. Adinolfi +509

Six of the key physics measurements that will be made by the LHCb experiment, concerning CP asymmetries and rare B decays, are discussed in detail. The "road map" towards the preci…

Observation of the Bs0​→J/ψϕϕ decay

Measurement of CP violation parameters and polarisation fractions in Bs0​→J/ψK∗0 decays

Measurement of the branching fraction ratio B(Bc+​→ψ(2S)π+)/B(Bc+​→J/ψπ+)

Angular analysis and differential branching fraction of the decay Bs0​→ϕμ+μ−

Measurement of the exclusive Υ production cross-section in pp collisions at s​=7 TeV and 8 TeV

Search for the Λb​→Λη′ and Λb​→Λη decays with the LHCb detector

Amplitude analysis of B0→Dˉ0K+π− decays

A study of CP violation in B∓→Dh∓ (h=K,π) with the modes D→K∓π±π0, D→π+π−π0 and D→K+K−π0

Measurement of the Z+b-jet cross-section in pp collisions at s​=7TeV in the forward region

Measurement of the B0bar-B0 and Bsbar-Bs production asymmetries in pp collisions at sqrt(s)=7 TeV

Dalitz plot analysis of Bs0​→Dˉ0K−π+ decays

Test of lepton universality using B+→K+ℓ+ℓ− decays

Measurement of the resonant and CP components in B0→J/ψπ+π− decays

Evidence for the decay X(3872)→ψ(2S)γ

Measurement of the charge asymmetry in B±→ϕK± and search for B±→ϕπ± decays

Observation of the decay Bs0​→Dˉ0ϕ

Search for the lepton-flavour violating decays Bs0​→e±μ∓ and B0→e±μ∓

Observation of Bc+​→J/ψDs+​ and Bc+​→J/ψDs∗+​ decays

Measurement of the inclusive phi cross-section in pp collisions at sqrt(s) = 7 TeV

Measurement of sigma(pp -> b anti-b X) at \sqrt(s)=7 TeV in the forward region

Roadmap for selected key measurements of LHCb

Observation of the $B_{s}^{0} \to J / ψ ϕϕ$ decay

Measurement of $C P$ violation parameters and polarisation fractions in $B_{s}^{0} \to J / ψ K^{* 0}$ decays

Measurement of the branching fraction ratio $B (B_{c}^{+} \to ψ (2 S) π^{+}) / B (B_{c}^{+} \to J / ψ π^{+})$

Angular analysis and differential branching fraction of the decay $B_{s}^{0} \to ϕ μ^{+} μ^{-}$

Measurement of the exclusive $Υ$ production cross-section in $pp$ collisions at $s =$ 7 TeV and 8 TeV

Search for the $Λ_{b} \to Λ η^{'}$ and $Λ_{b} \to Λ η$ decays with the LHCb detector

Amplitude analysis of $B^{0} \to D ˉ^{0} K^{+} π^{-}$ decays

A study of $C P$ violation in $B^{\mp} \to D h^{\mp}$ ( $h = K, π$ ) with the modes $D \to K^{\mp} π^{\pm} π^{0}$ , $D \to π^{+} π^{-} π^{0}$ and $D \to K^{+} K^{-} π^{0}$

Measurement of the Z+b-jet cross-section in pp collisions at $s = 7 Te V$ in the forward region

Dalitz plot analysis of $B_{s}^{0} \to D ˉ^{0} K^{-} π^{+}$ decays

Test of lepton universality using $B^{+} \to K^{+} ℓ^{+} ℓ^{-}$ decays

Measurement of the resonant and CP components in $B^{0} \to J / ψ π^{+} π^{-}$ decays

Evidence for the decay $X (3872) \to ψ (2 S) γ$

Measurement of the charge asymmetry in $B^{\pm} \to ϕ K^{\pm}$ and search for $B^{\pm} \to ϕ π^{\pm}$ decays

Observation of the decay $B_{s}^{0} \to D ˉ^{0} ϕ$

Search for the lepton-flavour violating decays $B_{s}^{0} \to e^{\pm} μ^{\mp}$ and $B^{0} \to e^{\pm} μ^{\mp}$

Observation of $B_{c}^{+} \to J / ψ D_{s}^{+}$ and $B_{c}^{+} \to J / ψ D_{s}^{*+}$ decays