T. Ruf

activity

19952026

most citedTest of lepton universality using

B^{+} \to K^{+} ℓ^{+} ℓ^{-}

decays

952 citations · 10.7k across the 157 of their papers we have counts for

collaborators

Showing 2013Show all

54 papers · 1 filter

hep-ex2013★ 20 cited

Measurement of the $B ˉ_{s}^{0} \to D_{s}^{-} D_{s}^{+}$ and $B ˉ_{s}^{0} \to D^{-} D_{s}^{+}$ effective lifetimes

LHCb collaboration, R. Aaij, B. Adeva +672

The first measurement of the effective lifetime of the $B ˉ_{s}^{0}$ meson in the decay $B ˉ_{s}^{0} \to D_{s}^{-} D_{s}^{+}$ is reported using a proton-proton collision dataset, correspondi…

hep-ph2013

Observational Aspects of Symmetries of the Neutral B Meson System

Maria Fidecaro, Hans-Jürg Gerber, Thomas Ruf

We revisit various results, which have been obtained by the BABAR and Belle Collaborations over the last twelve years, concerning symmetry properties of the Hamiltonian, which gove…

hep-ex2013★ 116 cited

Measurement of CP violation in the phase space of $B^{\pm} \to K^{+} K^{-} π^{\pm}$ and $B^{\pm} \to π^{+} π^{-} π^{\pm}$ decays

LHCb collaboration, R. Aaij, B. Adeva +656

The charmless decays $B^{\pm} \to K^{+} K^{-} π^{\pm}$ and $B^{\pm} \to π^{+} π^{-} π^{\pm}$ are reconstructed in a data set, corresponding to an integrated luminosity…

hep-ex2013★ 67 cited

Proposal to Search for Heavy Neutral Leptons at the SPS

W. Bonivento, A. Boyarsky, H. Dijkstra +13

A new fixed-target experiment at the CERN SPS accelerator is proposed that will use decays of charm mesons to search for Heavy Neutral Leptons (HNLs), which are right-handed partne…

hep-ex2013★ 41 cited

Measurements of indirect CP asymmetries in $D^{0} \to K^{-} K^{+}$ and $D^{0} \to π^{-} π^{+}$ decays

LHCb collaboration, R. Aaij, B. Adeva +656

A study of indirect CP violation in $D^{0}$ mesons through the determination of the parameter $A_{Γ}$ is presented using a data sample of $pp$ collisions, corresponding to an integrate…

hep-ex2013

Search for the decay D0 to π+ π- μ+ μ-

LHCb collaboration, R. Aaij, B. Adeva +656

A search for the D0 to π+ π- μ+ μ- decay, where the muon pair does not originate from a resonance, is performed using proton-proton collision data corresponding to an integrated lu…

hep-ex2013★ 39 cited

Observation of B^0_(s) -> J/ψf_1(1285) decays and measurement of the f_1(1285) mixing angle

LHCb collaboration, R. Aaij, B. Adeva +666

Decays of Bs and B0 mesons into J/ψπ+π-π+π- final states, produced in pp collisions at the LHC, are investigated using data corresponding to an integrated luminosity of 3/fb collec…

hep-ex2013★ 36 cited

Observation of the decay $B_{c} \to J / ψ K^{+} K^{-} π^{+}$

LHCb collaboration, R. Aaij, B. Adeva +656

The decay $B_{c} \to J / ψ K^{+} K^{-} π^{+}$ is observed for the first time, using proton-proton collisions collected with the LHCb detector corresponding to an integrated luminosity…

hep-ex2013★ 72 cited

Measurement of D0-D0bar mixing parameters and search for CP violation using D0->K+pi- decays

LHCb collaboration, R. Aaij, B. Adeva +657

Measurements of charm mixing parameters from the decay-time-dependent ratio of D0->K+pi- to D0->K-pi+ rates and the charge-conjugate ratio are reported. The analysis uses data, cor…

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★ 559 cited

Measurement of form-factor independent observables in the decay $B^{0} \to K^{* 0} μ^{+} μ^{-}$

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

We present a measurement of form-factor independent angular observables in the decay \mbox{ $B^{0} \to K^{*} (892)^{0} μ^{+} μ^{-}$ }. The analysis is based on a data sample corresponding to…

hep-ex2013★ 18 cited

First evidence for the two-body charmless baryonic decay $B^{0} \to p p ˉ$

LHCb collaboration, R. Aaij, B. Adeva +657

The results of a search for the rare two-body charmless baryonic decays $B^{0} \to p p ˉ$ and $B_{s}^{0} \to p p ˉ$ are reported. The analysis uses a data sample, corresponding t…

nucl-ex2013★ 73 cited

Study of $J / ψ$ production and cold nuclear matter effects in $p$ Pb collisions at $s_{N N} = 5 TeV$

LHCb collaboration, R. Aaij, B. Adeva +656

The production of $J / ψ$ mesons with rapidity $1.5 < y < 4.0$ or $- 5.0 < y < - 2.5$ and transverse momentum $p_{T} < 14 GeV / c$ is studied with the LHCb detector in proton-lead…

hep-ex2013★ 32 cited

First observation of B0->J/ψK+K- and search for B0->J/ψϕ decays

LHCb collaboration, R. Aaij, B. Adeva +652

The first observation of the B0->J/ψK+K- decay is presented with a data sample corresponding to an integrated luminosity of 1.0/fb of pp collisions at a center-of-mass energy of 7…

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★ 70 cited

Observation of the decay Bc+ -> Bs0 pi+

LHCb collaboration, R. Aaij, B. Adeva +653

The result of a search for the decay Bc+ -> Bs0 pi+ is presented, using the Bs0 -> Ds- pi+ and Bs0 -> J/psi Phi channels. The analysis is based on a data sample of pp collisions co…

hep-ex2013

Measurement of the $C ¶$ asymmetry in $B^{+} \to K^{+} μ^{+} μ^{-}$ decays

LHCb collaboration, R. Aaij, B. Adeva +657

A measurement of the $C ¶$ asymmetry in $B^{+} \to K^{+} μ^{+} μ^{-}$ decays is presented using $pp$ collision data, corresponding to an integrated luminosity of 1.0 $f b^{- 1}$ , r…

hep-ex2013★ 22 cited

Observation of $B_{s}^{0}$ - $B ˉ_{s}^{0}$ mixing and measurement of mixing frequencies using semileptonic B decays

LHCb collaboration, R. Aaij, B. Adeva +657

The $B_{s}^{0}$ and $B^{0}$ mixing frequencies, $Δ m_{s}$ and $Δ m_{d}$ , are measured using a data sample corresponding to an integrated luminosity of 1.0 fb^{-1} collected by the LHCb experim…

hep-ex2013★ 15 cited

Branching fraction and CP asymmetry of the decays $B^{+} \to K_{S}^{0} π^{+}$ and $B^{+} \to K_{S}^{0} K^{+}$

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

An analysis of $B^{+} \to K_{S}^{0} π^{+}$ and $B^{+} \to K_{S}^{0} K^{+}$ decays is performed with the LHCb experiment. The $pp$ collision data u…

hep-ex2013★ 44 cited

Precision measurement of the Lambda_b baryon lifetime

LHCb collaboration, R. Aaij, B. Adeva +652

The ratio of the Λb baryon lifetime to that of the B0 meson is measured using 1.0/fb of integrated luminosity in 7 TeV center-of-mass energy pp collisions at the LHC. The Λb baryon…

hep-ex2013★ 19 cited

Studies of the decays $B^{+} \to p p ˉ h^{+}$ and observation of $B^{+} \to Λ ˉ (1520) p$

LHCb collaboration, R. Aaij, B. Adeva +652

Dynamics and direct $C ¶$ violation in three-body charmless decays of charged $B$ mesons to a proton, an antiproton and a light meson (pion or kaon) are studied using data, correspo…

hep-ex2013★ 24 cited

Study of $B_{(s)}^{0} \to K_{S}^{0} h^{+} h^{' -}$ decays with first observation of $B_{s}^{0} \to K_{S}^{0} K^{\pm} π^{\mp}$ and $B_{s}^{0} \to K_{S}^{0} π^{+} π^{-}$

LHCb collaboration, R. Aaij, B. Adeva +657

A search for charmless three-body decays of $B^{0}$ and $B_{s}^{0}$ mesons with a $K_{S}^{0}$ meson in the final state is performed using the $pp$ collision data, corresponding to an…

hep-ex2013★ 75 cited

Observation of a resonance in $B^{+} \to K^{+} μ^{+} μ^{-}$ decays at low recoil

LHCb collaboration, R. Aaij, B. Adeva +657

A broad peaking structure is observed in the dimuon spectrum of $B^{+} \to K^{+} μ^{+} μ^{-}$ decays in the kinematic region where the kaon has a low recoil against the dimuon system. The s…

hep-ex2013★ 153 cited

Measurement of $J / ψ$ polarization in $pp$ collisions at $s = 7$ TeV

LHCb collaboration, R. Aaij, C. Abellan Beteta +627

An angular analysis of the decay $J / ψ \to μ^{+} μ^{-}$ is performed to measure the polarization of prompt $J / ψ$ mesons produced in $pp$ collisions at $\sqrt{s}=7\; \mathrm{T…

Measurement of the Bˉs0​→Ds−​Ds+​ and Bˉs0​→D−Ds+​ effective lifetimes

Observational Aspects of Symmetries of the Neutral B Meson System

Measurement of CP violation in the phase space of B±→K+K−π± and B±→π+π−π± decays

Proposal to Search for Heavy Neutral Leptons at the SPS

Measurements of indirect CP asymmetries in D0→K−K+ and D0→π−π+ decays

Search for the decay D0 to π+ π- μ+ μ-

Observation of B^0_(s) -> J/ψf_1(1285) decays and measurement of the f_1(1285) mixing angle

Observation of the decay Bc​→J/ψK+K−π+

Measurement of D0-D0bar mixing parameters and search for CP violation using D0->K+pi- decays

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

Measurement of form-factor independent observables in the decay B0→K∗0μ+μ−

First evidence for the two-body charmless baryonic decay B0→ppˉ​

Study of J/ψ production and cold nuclear matter effects in pPb collisions at sNN​​=5TeV

First observation of B0->J/ψK+K- and search for B0->J/ψϕ decays

Observation of the decay Bs0​→Dˉ0ϕ

Observation of the decay Bc+ -> Bs0 pi+

Measurement of the C¶ asymmetry in B+→K+μ+μ− decays

Observation of Bs0​-Bˉs0​ mixing and measurement of mixing frequencies using semileptonic B decays

Branching fraction and CP asymmetry of the decays B+→KS0​π+ and B+→KS0​K+

Precision measurement of the Lambda_b baryon lifetime

Studies of the decays B+→ppˉ​h+ and observation of B+→Λˉ(1520)p

Study of B(s)0​→KS0​h+h′− decays with first observation of Bs0​→KS0​K±π∓ and Bs0​→KS0​π+π−

Observation of a resonance in B+→K+μ+μ− decays at low recoil

Measurement of J/ψ polarization in pp collisions at s​=7 TeV

Measurement of the $B ˉ_{s}^{0} \to D_{s}^{-} D_{s}^{+}$ and $B ˉ_{s}^{0} \to D^{-} D_{s}^{+}$ effective lifetimes

Measurement of CP violation in the phase space of $B^{\pm} \to K^{+} K^{-} π^{\pm}$ and $B^{\pm} \to π^{+} π^{-} π^{\pm}$ decays

Measurements of indirect CP asymmetries in $D^{0} \to K^{-} K^{+}$ and $D^{0} \to π^{-} π^{+}$ decays

Observation of the decay $B_{c} \to J / ψ K^{+} K^{-} π^{+}$

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

Measurement of form-factor independent observables in the decay $B^{0} \to K^{* 0} μ^{+} μ^{-}$

First evidence for the two-body charmless baryonic decay $B^{0} \to p p ˉ$

Study of $J / ψ$ production and cold nuclear matter effects in $p$ Pb collisions at $s_{N N} = 5 TeV$

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

Measurement of the $C ¶$ asymmetry in $B^{+} \to K^{+} μ^{+} μ^{-}$ decays

Observation of $B_{s}^{0}$ - $B ˉ_{s}^{0}$ mixing and measurement of mixing frequencies using semileptonic B decays

Branching fraction and CP asymmetry of the decays $B^{+} \to K_{S}^{0} π^{+}$ and $B^{+} \to K_{S}^{0} K^{+}$

Studies of the decays $B^{+} \to p p ˉ h^{+}$ and observation of $B^{+} \to Λ ˉ (1520) p$

Study of $B_{(s)}^{0} \to K_{S}^{0} h^{+} h^{' -}$ decays with first observation of $B_{s}^{0} \to K_{S}^{0} K^{\pm} π^{\mp}$ and $B_{s}^{0} \to K_{S}^{0} π^{+} π^{-}$

Observation of a resonance in $B^{+} \to K^{+} μ^{+} μ^{-}$ decays at low recoil

Measurement of $J / ψ$ polarization in $pp$ collisions at $s = 7$ TeV