First observation of a baryonic Bc+ decay.

A baryonic decay of the B(c)(+) meson, B(c)(+) → J/ψppπ(+), is observed for the first time, with a significance of 7.3 standard deviations, in pp collision data collected with the LHCb detector and corresponding to an integrated luminosity of 3.0 fb(-1) taken at center-of-mass energies of 7 and 8 TeV.

Test of lepton universality using b+ → K+ℓ+ℓ- decays.

A measurement of the ratio of the branching fractions of the B(+) → K(+)μ(+)μ(-) and B(+) → K(+)e(+)e(-) decays is presented using proton-proton collision data, corresponding to an integrated luminosity of 3.0 fb(-1), recorded with the LHCb experiment at center-of-mass energies of 7 and 8 TeV. The value of the ratio of branching fractions for the dilepton invariant mass squared range 1 < q(2) < 6 GeV(2)/c(4) is measured to be 0.

Observation of overlapping spin-1 and spin-3 D0K- resonances at mass 2.86 GeV/c2.

The resonant substructure of B(s)(0) → D(0)K(-)π(+) decays is studied using a data sample corresponding to an integrated luminosity of 3.0 fb(-1) of pp collision data recorded by the LHCb detector. An excess at m(D(0)K(-))≈ 2.

Evidence for CP violation in B+ → ppK+ decays.

Three-body B+ → ppK+ and B(+) → ppπ(+) decays are studied using a data sample corresponding to an integrated luminosity of 3.0 fb(-1) collected by the LHCb experiment in proton-proton collisions at center-of-mass energies of 7 and 8 TeV. Evidence of CP violation in the B(+) → ppK(+) decay is found in regions of the phase space, representing the first measurement of this kind for a final state containing baryons.

First measurement of the charge asymmetry in beauty-quark pair production.

The difference in the angular distributions between beauty quarks and antiquarks, referred to as the charge asymmetry, is measured for the first time in bb pair production at a hadron collider. The data used correspond to an integrated luminosity of 1.0 fb(-1) collected at 7 TeV center-of-mass energy in proton-proton collisions with the LHCb detector.

Precision measurement of the Λb(0) baryon lifetime.

The ratio of the Λb(0) baryon lifetime to that of the B(0) meson is measured using 1.0  fb(-1) of integrated luminosity in 7 TeV center-of-mass energy pp collisions at the LHC. The Λb(0) baryon is observed for the first time in the decay mode Λb(0)→J/ψpK-, while the B(0) meson decay used is the well known B(0)→J/ψπ+ K- mode, where the π+ K- mass is consistent with that of the K(*0)(892) meson.

Measurement of the Bs(0)→μ+ μ- branching fraction and search for B(0)→μ+ μ- decays at the LHCb experiment.

A search for the rare decays Bs(0)→μ+ μ- and B(0)→μ+ μ- is performed at the LHCb experiment. The data analyzed correspond to an integrated luminosity of 1  fb(-1) of pp collisions at a center-of-mass energy of 7 TeV and 2  fb(-1) at 8 TeV. An excess of Bs(0)→μ+ μ- signal candidates with respect to the background expectation is seen with a significance of 4.

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

The charmless decays B±→K± π+ π- and B±→K± K+ K- are reconstructed using data, corresponding to an integrated luminosity of 1.0  fb(-1), collected by LHCb in 2011. The inclusive charge asymmetries of these modes are measured as ACP(B±→K± π+ π-)=0.

Malignant melanoma of the lacrimal drainage apparatus complicating conjunctival melanoma.

Purpose: Melanoma of the conjunctiva may occasionally involve the lacrimal drainage apparatus (LDA). This makes clinical management difficult. The authors describe 5 cases of conjunctival melanoma with LDA disease and make recommendations about its management.

Precision measurement of the mass and lifetime of the Ξ(b)(0) baryon.

Using a proton-proton collision data sample corresponding to an integrated luminosity of 3 fb(-1) collected by LHCb at center-of-mass energies of 7 and 8 TeV, about 3800 Ξ(b)(0) → Ξ(c)(+)π(-), Ξ(c)(+)) → pK(-)π(+) signal decays are reconstructed. From this sample, the first measurement of the Ξ(b)(0) baryon lifetime is made, relative to that of the Λ(b)(0) baryon. The mass differences M(Ξ(b)(0))-M(Λ(b)(0)) and M(Ξ(c)(+))-M(Λ(c)(+)) are also measured with precision more than 4 times better than the current world averages.

Observation of the resonant character of the Z(4430)(-) state.

Resonant structures in B^{0}→ψ^{'}π^{-}K^{+} decays are analyzed by performing a four-dimensional fit of the decay amplitude, using pp collision data corresponding to 3  fb^{-1} collected with the LHCb detector. The data cannot be described with K^{+}π^{-} resonances alone, which is confirmed with a model-independent approach. A highly significant Z(4430)^{-}→ψ^{'}π^{-} component is required, thus confirming the existence of this state.

The natural history of orbital cavernous hemangiomas.

Purpose: Orbital cavernous hemangiomas (OCH) often present as incidentally found asymptomatic lesions, and it has been reported that such lesions do not grow. The authors' own experience has been different. They describe the natural history of OCH in a cohort with asymptomatic incidentally found lesions and compare them with patients with symptomatic OCH to identify any characteristics that might predict those which enlarge and produce symptoms.

Review of 268 lacrimal gland biopsies in an Australian cohort.

Background: To review the distribution of pathology in lacrimal gland biopsies performed in an Australian cohort.

Design: Retrospective review.

Participants: Two hundred sixty-eight lacrimal gland biopsies from 263 patients.

Management of functional epiphora in patients with an anatomically patent dacryocystorhinostomy.

Importance: Approximately 5% to 10% of patients continue to experience persistent epiphora following an anatomically successful dacryocystorhinostomy (DCR) for nasolacrimal duct obstruction or stenosis.

Objective: To investigate the management and success rate of so-called "functional failure" of DCR for nasolacrimal duct obstruction by experienced lacrimal surgeons.

Design, Setting, And Participants: Multicenter retrospective case series including 5 Australian and New Zealand centers.

The anatomical location and laterality of orbital cavernous haemangiomas.

Purpose: To determine the anatomical location and laterality of orbital cavernous haemangiomas (OCH).

Design: Retrospective case series.

Methods: The records of 104 patients with OCH were analyzed.

Observation of photon polarization in the b→sγ transition.

This Letter presents a study of the flavor-changing neutral current radiative B±→K±π∓π±γ decays performed using data collected in proton-proton collisions with the LHCb detector at 7 and 8 TeV center-of-mass energies. In this sample, corresponding to an integrated luminosity of 3  fb-1, nearly 14 000 signal events are reconstructed and selected, containing all possible intermediate resonances with a K±π∓π± final state in the [1.1,1.

Perioperative Anuria Resulting in the Diagnosis of Infrasphincteric Ectopic Ureter in an Adult Female.

Ectopic ureter, particularly in females, often presents at a young age as incontinence. Otherwise healthy girls who have continuous urinary wetting during day and night despite adequate toilet training should be held with a high level of suspicion for an extravesical infrasphincteric ectopic ureteral orifice. If such a diagnosis goes undiscovered, frequent reflux or obstruction may cause permanent damage to the renal unit, as in the patient discussed here.

Search for Majorana neutrinos in B- → π+ μ- μ- decays.

A search for heavy Majorana neutrinos produced in the B- → π+ μ- μ- decay mode is performed using 3  fb(-1) of integrated luminosity collected with the LHCb detector in pp collisions at center-of-mass energies of 7 and 8 TeV at the LHC. Neutrinos with masses in the range 250 to 5000 MeV and lifetimes from zero to 1000 ps are probed. In the absence of a signal, upper limits are set on the branching fraction B(B- → π+ μ- μ-) as functions of neutrino mass and lifetime.

Measurement of the Bs(0) → Ds-Ds+ and Bs(0) → D-Ds+ effective lifetimes.

The first measurement of the effective lifetime of the B(s)(0) meson in the decay B(s)(0) → Ds-Ds+ is reported using a proton-proton collision data set, corresponding to an integrated luminosity of 3 fb(-1), collected by the LHCb experiment. The measured value of the B(s)(0) → Ds-Ds+ effective lifetime is 1.379 ± 0.

Observation of B(s)(0) → J/ψ f1(1285) decays and measurement of the f1(1285) mixing angle.

Decays of B(s)(0) and B(0) mesons into J/ψ π+π-π+π- final states, produced in pp collisions at the LHC, are investigated using data corresponding to an integrated luminosity of 3 fb-1 collected with the LHCb detector. B(s)(0) → J/ψ f1(1285) decays are seen for the first time, and the branching fractions are measured. Using these rates, the f1(1285) mixing angle between strange and nonstrange components of its wave function in the qq structure model is determined to be ±(24.

Enlargement of the infraorbital nerve: an important sign associated with orbital reactive lymphoid hyperplasia or immunoglobulin g4-related disease.

Objective: To describe the clinical, histopathologic, and radiologic features of a recently identified cause for enlargement of the infraorbital canal.

Design: Retrospective, noncomparative case series.

Participants: Consecutive patients were identified from the orbital databases at Moorfields Eye Hospital, London, England, and the Royal Victorian Eye and Ear Hospital, Melbourne, Australia.

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

A study of indirect CP violation in D0 mesons through the determination of the parameter AΓ is presented using a data sample of pp collisions, corresponding to an integrated luminosity of 1.0  fb(-1), collected with the LHCb detector and recorded at the center-of-mass energy of 7 TeV at the LHC. The parameter AΓ is the asymmetry of the effective lifetimes measured in decays of D0 and D0 mesons to the CP eigenstates K- K+ and π- π+.