Browsing MIT Open Access Articles by Author "Iakovenko, V."
Now showing items 1-9 of 9
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Differential branching fraction and angular analysis of the decay B[superscript 0][subscript s] → ϕμ[superscript +]μ[superscript −]
Aaij, R.; Abellan Beteta, C.; Adeva, B.; Adinolfi, M.; Adrover, C.; e.a. (Springer Berlin Heidelberg, 2013-07)The determination of the differential branching fraction and the first angular analysis of the decay B[superscript 0][subscript 0] → ϕμ[superscript +]μ[subscript −] are presented using data, corresponding to an integrated ... -
First evidence for the annihilation decay mode B[superscript +] → D[superscript +][subscript s]φ
Aaij, R.; Beteta, C. A; Adametz, A.; Adeva, B.; Adinolfi, M.; e.a. (Springer Berlin Heidelberg, 2013-02)Abstract: Evidence for the hadronic annihilation decay mode B[superscript +] → D[superscript +][subscript s] φ is found with greater than 3σ significance. The branching fraction and CP asymmetry are measured to be ... -
Measurement of J/ψ polarization in pp collisions at √s =7 TeV
Aaij, R.; Abellan Beteta, C.; Adeva, B.; Adinolfi, M.; Adrover, C.; e.a. (Springer Berlin Heidelberg, 2013-11)An angular analysis of the decay J/ψ→μ[superscript +] μ[superscript −] is performed to measure the polarization of prompt J/ψ mesons produced in pp collisions at √s =7 TeV. The dataset corresponds to an integrated luminosity ... -
Measurement of J/ψ production in pp collisions at s√=2.76TeV
Aaij, R.; Beteta, C. A; Adametz, A.; Adeva, B.; Adinolfi, M.; e.a. (Springer Berlin Heidelberg, 2013-02)The production of J/ψ mesons is studied with the LHCb detector using data from pp collisions at s√=2.76s=2.76 TeV corresponding to an integrated luminosity of 71 nb[superscript −1]. The differential cross-section for ... -
Measurement of the fragmentation fraction ratio f[subscript s]/f[subscript d] and its dependence on B meson kinematics
Aaij, R.; Abellan Beteta, C.; Adametz, A.; Adeva, B.; Adinolfi, M.; e.a. (Springer Berlin Heidelberg, 2013-04)The relative production rate of B[superscript 0][subscript s] and B[superscript 0] mesons is determined with the hadronic decays B[superscript 0][subscript s]→D[superscript −][subscript s]π[superscript +] and B[superscript ... -
Observation of B[superscript 0][subscript s]-[bar over B][superscript 0][subscript s] mixing and measurement of mixing frequencies using semileptonic B decays
Aaij, R.; Adeva, B.; Adinolfi, M.; Adrover, C.; Affolder, A.; e.a. (Springer Berlin Heidelberg, 2013-12)The B[superscript 0][subscript s] and B[superscript 0] mixing frequencies, Δm[subscript s] and Δm[subscript d], are measured using a data sample corresponding to an integrated luminosity of 1.0 fb[superscript −1] collected ... -
Precision measurement of D meson mass differences
Aaij, R.; Abellan Beteta, C.; Adeva, B.; Adinolfi, M.; Adrover, C.; e.a. (Springer-Verlag, 2013-06)Using three- and four-body decays of D mesons produced in semileptonic b-hadron decays, precision measurements of D meson mass differences are made together with a measurement of the D[superscript 0] mass. The measurements ... -
Searches for B[superscript 0][subscript (s)] →J/ψp[bar over p] and B[superscript +]→ J/ψ p[bar over p]π[superscript +] decays
Aaij, R.; Adeva, B.; Adinolfi, M.; Adrover, C.; Affolder, A.; e.a. (Springer Berlin Heidelberg, 2013-09)The results of searches for B[superscript 0][subscript (s)]→J/ψ p[bar over p] and B[superscript +] → J/ψ p[bar over p]π[superscript +] decays are reported. The analysis is based on a data sample, corresponding to an ... -
A study of the Z production cross-section in pp collisions at √s = 7 using tau final states
Aaij, R.; Beteta, C. A; Adametz, A.; Adeva, B.; Adinolfi, M.; e.a. (Springer-Verlag, 2013-01)A measurement of the inclusive Z → ττ cross-section in pp collisions at √s =7 is presented based on a dataset of 1.0 fb[superscript −1] collected by the LHCb detector. Candidates for Z → τ τ decays are identified through ...