Branching fraction
Measurement of the differential branching fraction of the decay Λ0b→Λμ+μ−
... IP and χ VS 2 because of the differing track resolution and kinematics. In the final selection of Λ 0 b → J /ψΛ candidates, the μ + μ − invariant mass is required to be in the interval 3030–3150 MeV / c 2 . The signal ...
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Measurement of the B0→K∗0e+e− branching fraction at low dilepton mass
... The first step towards performing the angular analysis is to measure the branching fraction in this very low dilepton invariant mass region. Indeed, even if there is no doubt about the existence of this ...
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Differential branching fraction and angular analysis of the B+ → K+μ+μ decay
... LHCb Collaboration (Including: Back, John J., Craik, Daniel, Dossett, D., Gershon, Timothy J., Harrison, Paul F., Kreps, Michal, Latham, Thomas, Pilar, T., Poluektov, Anton, Reid, Matthew M., Silva Coutinho, R., ...
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Differential branching fraction and angular analysis of the decay B0→K∗0μ+μ−
... The uncertainty associated with the data-derived corrections to the simulation, which were described in section 2, is estimated to be 1 − 2%. Varying the level of the peaking backgrounds within their uncertainties ...
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Measurement of the Bs0→J/ψK*0 branching fraction and angular amplitudes
... the branching fraction calculation, the fraction of K 0 candidates is determined from a different full angular and mass fit, which is described ...
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Measurement of the branching fraction, and bounds on the CP-violating asymmetries, of neutral B decays to (DD -/+)-D-*+/-
... In summary, we have measured the branching fraction and CP-violating asymmetries for B ! D D decays. The small size of the D D sample currently precludes the observation of CP violation in this first ...
7
Measurement of the B0s→μ+μ− branching fraction and search for B0→μ+μ− decays at the LHCb experiment
... The analysis strategy is very similar to that employed in Ref. [12], with a different multivariate operator based on a boosted decision trees algorithm (BDT) [15,16]. After trigger and loose selection requirements, B 0 ...
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Evidence for the rare decay B -> K(*)l(+)l(-) and measurement of the B -> Kl(+)l(-) branching fraction
... the branching fraction central value (B) with its statistical and total systematic ...the branching fractions averaged over different channels (lower part of table), simultaneous, constrained fits ...
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Differential branching fraction and angular moments analysis of the decay B0 → K+π−μ+μ− in the K0,2∗(1430)0 region
... B 0 → J/ψ K ∗ (892) 0 control mode, as shown in figure 4, and are subsequently fixed when fitting the B 0 → K + π − µ + µ − candidates. An additional component is included in the fit to the control mode to model the ...
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Angular analysis and differential branching fraction of the decay Bs0 → ϕμ+μ−
... signal events. By allowing a New Physics contribution of −1.5, which is motivated by the global fit results in ref. [38], the resulting systematic uncertainty is found to be less than 1.6%. The selection requirements ...
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Differential branching fraction and angular analysis of the decay B0s→ϕμ+μ−
... The B s 0 → φµ + µ − (φ → K + K − ) decay 1 involves a b → s quark transition and therefore constitutes a flavour changing neutral current (FCNC) process. Since FCNC processes are forbidden at tree level in the Standard ...
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Differential branching fraction and angular analysis of Λb0 → Λμ+μ− decays
... A measurement of the differential branching fraction of the Λ 0 b → Λµ + µ − decay is per- formed using data, corresponding to an integrated luminosity of 3.0 fb −1 , recorded by the LHCb detector at ...
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Amplitude analysis and branching fraction measurement of Bs0→J/ψK+K
... The systematic uncertainty on the branching fraction has several contributions listed in Table IX. Since the branch- ing fractions are measured with respect to B ! J= c K which has a different number of ...
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Branching fraction and CP asymmetry of the decays B+→K0Sπ+ and B+→K0SK+
... The determination of the trigger efficiencies is subject to varia- tions in the data-taking conditions and, in particular, to the ageing of the calorimeter system. These effects are mitigated by regular changes in the gain ...
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Test of Lepton Flavor Universality by the measurement of the $B^0 \to D^{*-} τ^+ ν_τ$ branching fraction using three-prong $τ$ decays
... The three-prong topology enables the precise reconstruction of a τ decay vertex detached from the B 0 decay vertex due to the non zero τ lifetime, thereby allowing the discrimination bet[r] ...
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Measurement of the B s0 > J/ΨK S0 branching fraction
... Centro Brasileiro de Pesquisas Físicas CBPF, Rio de Janeiro, Brazil Universidade Federal do Rio de Janeiro UFRJ, Rio de Janeiro, Brazil 3 Center for High Energy Physics, Tsinghua Univers[r] ...
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Determination of fs/fd for 7 TeV pp collisions and measurement of the B0 >D K+ branching fraction
... Lebedev Physical Institute, Russian Academy of Science LPI RAS, Moscow, Russia 11 Physikalisches Institut, Ruprecht-Karls-Universita¨t Heidelberg, Heidelberg, Germany 12 School of Physic[r] ...
9
Study of the kinematic dependences of Λ b 0 production in pp collisions and a measurement of the Λ b 0 → Λ c + π − branching fraction
... Centro Brasileiro de Pesquisas F´ısicas CBPF, Rio de Janeiro, Brazil Universidade Federal do Rio de Janeiro UFRJ, Rio de Janeiro, Brazil Center for High Energy Physics, Tsinghua Universi[r] ...
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Measurement of the B (s) (0) -> aEuro parts per thousand I center dot I center dot branching fraction and search for the decay B (0) -> phi phi
... Various other uncertainties arise on the measurement of the ratio of branching fractions. The limited size of the available simulation samples leads to a relative uncertainty of 0.8 %. The influence of the assumed ...
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Branching fraction and form factor shape measurements of exclusive charmless semileptonic B decays, and determination of |Vub|
... TABLE II: Fitted yields in the full q 2 range investigated for the signal and each background category, total fitted yield and experimental data events, and values of χ2 for the overall [r] ...
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