Publications de Olivier Schneider

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The decays of B (s) (0) and mesons into the J/psi K (+) K (-) final state are studied in the K (+) K (-) mass region above the I center dot(1020) meson in order to determine the resonant substructure and measure the CP-violating phase, I center dot (s) , t ...

The results of a search for the rare two-body charmless baryonic decays B-0 -> p (p) over bar and B-s(0) -> p (p) over bar are reported. The analysis uses a data sample, corresponding to an integrated luminosity of 0.9 fb(-1), of p p collision data collect ...

We search for the decay B-s(0) -> gamma gamma and measure the branching fraction for B-s(0) -> phi gamma using 121.4 fb(-1) of data collected at the Upsilon(5S) resonance with the Belle detector at the KEKB asymmetric- energy e(+)e(-) collider. The B-s(0) ...

This paper reports the observation of the decays B(s)(0) → D(s1)(2536)∓K± using proton-proton collision data collected by the LHCb experiment, corresponding to an integrated luminosity of 9 fb(-1). The branching fractions of these decays are measured relat ...

The properties of the orbitally excited (L =1) B-s(0) states are studied by using 1.0 fb(-1) of pp collisions at root s = 7 TeV collected with the LHCb detector. The first observation of the B-s2*(5840)(0) meson decaying to B*K-+(-) is reported, and the co ...

The decay -> J/psi K (+) K (-) pi (+) is observed for the first time, using protonproton collisions collected with the LHCb detector corresponding to an integrated luminosity of 3 fb(-1). A signal yield of 78 +/- 14 decays is reported with a significance o ...

We present the result of the search for the rare B meson decay of B+ -> l(+)nu e gamma with l = e, mu. For the search the full data set recorded by the Belle experiment of 711 fb(-1) integrated luminosity near the Upsilon(4S) resonance is used. Signal cand ...

The first observation of exotic states with a new quark content ccus decaying to the J/Psi K+ final state is reported with high significance from an amplitude analysis of the B+-> J/ Psi phi K+ decay. The analysis is carried out using proton-proton collisi ...

The kinematic dependences of the relative production rates, f(Lambda b)(0)/f(d), of Lambda(0)(b) baryons and B-0 mesons are measured using Lambda(0)(b) -> Lambda(+)(c)pi(-) and (B) over bar (0) -> D+pi(-) decays. The measurements use proton-proton collisio ...

A search for the rare leptonic decay B +. mu + mu - mu +.mu is performed using proton- proton collision data corresponding to an integrated luminosity of 4.7 fb - 1 collected by the LHCb experiment. The search is carried out in the region where the lowest ...

We present a precise measurement of the CP violation parameter sin2 phi(1) and the direct CP violation parameter A(f) using the final data sample of 772 x 10(6) B (B) over bar pairs collected at the gamma(4S) resonance with the Belle detector at the KEKB a ...

The first observation of the decay B-0 -> (D) over bar (0) K+ K- is reported from an analysis of 0.62 fb(-1) of pp collision data collected with the LHCb detector. Its branching fraction is measured relative to that of the topologically similar decay B-0 - ...

The charmless decays B-+/- -> K+K-pi(+/-) and B -> pi(+)pi(-)pi(+/-) are reconstructed in a data set of pp collisions with an integrated luminosity of 1.0 fb(-1) and center-of-mass energy of 7 TeV, collected by LHCb in 2011. The inclusive charge asymmetrie ...

The Υ(2S) and Υ(3S) production cross-sections are measured relative to that of the Υ(1S) meson, as a function of charged-particle multiplicity in proton-proton collisions at a centre-of-mass energy of 13 TeV. The measurement uses data collected by the LHCb ...

We search for lepton flavor and lepton number violating τ decays into a lepton (ℓ = electron or muon) and two charged mesons (h, h′ = π± or K±), τ- → ℓ- h+ h′ - and τ- → ℓ+ h- h′ -, using 671 fb-1 of data collected with the Belle detector at the KEKB asymm ...

The suppressed decay Lambda(0)(b) -> p pi(-) mu(+) mu(-), excluding the J/psi and psi(2S) -> mu(+) mu(-) resonances, is observed for the first time with a significance of 5.5 standard deviations. The analysis is performed with proton- proton collision data ...

We present a time-dependent Dalitz plot measurement of CP violation parameters in B-0 -> K-S(0)pi(+)pi(-) decays. These results are obtained from a large data sample that contains 657x10(6) B(B)over bar pairs collected at the Upsilon(4S) resonance with the ...

We present the first measurements of branching fractions of rare tau-lepton decays, tau(-) -> pi(-)nu(tau)l(+)l(-) (l = e or mu), using a data sample corresponding to 562 fb(-1) collected at a center-of-mass energy of 10.58 GeV with the Belle detector at t ...

Searches are performed for a low-mass dimuon resonance, X, produced in proton-proton collisions at a center-of-mass energy of 13 TeV, using a data sample corresponding to an integrated luminosity of 5.1 fb(-1) and collected with the LHCb detector. The X bo ...

We report measurements of the branching fractions and CP asymmetries for B-+/- -> eta h(+/-) (h = K or pi) and the observation of the decay B-0 -> eta K-0 from the final data sample of 772 x 10(6) B (B) over bar pairs collected with the Belle detector at t ...

Olivier Schneider

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Resonances and CP violation in B-s(0) and (B)over-bar(s)(0) -> j psi K+K- decays in the mass region above the I center dot(1020)

First evidence for the two-body charmless baryonic decay B-0 -> p(p)over-bar

Search for B-s(0) -> gamma gamma and a measurement of the branching fraction for B-s(0) -> phi gamma

Observation of the decays B(s)0 → D(s1)(2536)∓K±

First Observation of the Decay B(s2)(5840)(0) -> BK-+(-) and Studies of Excited B-s(0) Mesons

Observation of the decay -> J/psi K (+) K (-) pi (+)

Search for the rare decay of B+ -> l(+)nu e gamma with improved hadronic tagging

Observation of New Resonances Decaying to J=Psi K plus and J=Psi phi

Study of the kinematic dependences of Lambda(0)(b) production in pp collisions and a measurement of the Lambda(0)(b) -> Lambda(+)(c)pi(-) branching fraction

Search for the rare decay B+ -> mu(+) mu(-) mu(+)nu(mu)

Precise Measurement of the CP Violation Parameter sin2 phi(1) in B-0 -> (c(c)over-bar) K-0 Decays

Observation of B-0 -> (D)over-bar(0) K+ K- and Evidence for B-s(0) -> (D)over-bar(0) K+ K-

Measurement of CP Violation in the Phase Space of B-+/- -> K+K-pi(+/-) and B-+/- -> pi(+)pi(-)pi(+/-) Decays

Measurement of the multiplicity dependence of Υ production ratios in pp collisions at $ \sqrt{s} $ = 13 TeV

Search for lepton flavor and lepton number violating τ decays into a lepton and two charged mesons

Observation of the suppressed decay Lambda(0)(b) -> p pi(-) mu(+) mu(-)

Time-dependent Dalitz plot measurement of CP parameters in B0→KS0π+π- decays

Observation of tau(-) -> pi(-)nu(tau)e(+)e(-) and search for tau(-) -> pi(-)nu(tau)mu(+)mu(-)

Searches for low-mass dimuon resonances

Evidence for Direct CP Violation in B-+/- -> eta h(+/-) and Observation of B-0 -> eta K-0