[PDF] Top 20 Angular analysis and differential branching fraction of the decay Bs0 → ϕμ+μ−
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Angular analysis and differential branching fraction of the decay Bs0 → ϕμ+μ−
... one-dimensional angular distributions of the signal decay in each q 2 bin, overlaid with the projections of the likelihood ...the angular observables in bins of q 2 are given in appendix ...the ... See full document
35
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., ... See full document
16
Differential branching fraction and angular analysis of the decay B0→K*0μ+μ
... accounted for in the fit for the angular observables. The selected B 0 ! K 0 þ candidates are weighted in order to correct for the effects of the reconstruction, trigger, and selection. The weights are derived ... See full document
9
Differential branching fraction and angular analysis of Λb0 → Λμ+μ− decays
... Λ decay in two ways depending on which tracks are directly responsible for its selection by the trigger: “trigger on signal” candidates, where the tracks responsible for the hardware and software trigger decisions ... See full document
29
Differential branching fraction and angular analysis of the decay B0→K∗0μ+μ−
... Systematic variations are also considered for the data-derived corrections to the sim- ulated events. For example, the muon identification efficiency, which is derived from data using a tag-and-probe approach with J/ψ ... See full document
32
Differential branching fraction and angular analysis of the decay B0s→ϕμ+μ−
... peaking background if the K + (K − ) is misidentified as µ + (µ − ) and vice versa. Similarly, the decay B 0 → J/ψ K ∗0 (K ∗0 → K + π − ) where the π − (µ − ) is misidentified as µ − (K − ) can mimic the signal ... See full document
19
Measurement of the differential branching fraction of the decay Λ0b→Λμ+μ−
... the differential branching fraction, three types of correlation are taken into account: those between the normalisation and signal decays; those between the different q 2 regions; and those between ... See full document
12
Measurement of the Bs0→J/ψK*0 branching fraction and angular amplitudes
... tion and receive two contributions: the efficiency of the offline reconstruction (including geometrical acceptance) and selection cuts, and the trigger efficiency on events that satisfy the analysis offline ... See full document
10
Amplitude analysis and branching fraction measurement of Bs0→J/ψK+K
... 1:0 fb 1 of data collected by the LHCb experiment in 7 TeV center-of-mass energy pp collisions produced by the LHC. A modified Dalitz plot analysis of the final state is performed using both the invariant mass ... See full document
24
Differential branching fraction and angular moments analysis of the decay B0 → K+π−μ+μ− in the K0,2∗(1430)0 region
... The size of the systematic uncertainties associated with the determination of the ac- ceptance correction and residual peaking background contributions are evaluated using pseudoexperiments, in which samples are ... See full document
24
First observation of the decay Bs0→K*0K*0
... We present in this Letter the first observation of the B 0 s → K ∗ 0 K ∗ 0 decay using pp collisions at √ s = 7 TeV at the LHC. The data were collected during 2010 and corresponds to 35 pb − 1 of in- tegrated ... See full document
10
Determination of the sign of the decay width difference in the Bs0 system
... a linear function of the average m KK value in the k th interval. This leads to a slope of 0 : 050 þ0:013 0:020 rad = MeV for solution I and the opposite sign for solution II, where the uncertainties are statistical ... See full document
8
Rare B decays at LHCb
... Abstract. Rare B meson decays are an ideal place to search for the e ff ects of new particles that could arise in extensions to the Standard Model and couple to the flavour sector. Measurements of the rare B decay ... See full document
5
Studies of rare B > Kπμμ decays using the LHCb experiment
... flavour decay products is the impact parameter (IP), defined as the distance between the PV of the event and the tracks closest point to the ...PV. Decay products that result from a heavy flavour ... See full document
166
Evidence for the rare decay B -> K(*)l(+)l(-) and measurement of the B -> Kl(+)l(-) branching fraction
... uncertainties in the peaking backgrounds. The uncertain- ties in the means and widths of the signal shapes are obtained by comparing data and simulation for the char- monium control samples. For modes with electrons, we ... See full document
7
Strong constraints on the rare decays Bs0 > μ+μ and B0 > μ+μ
... Geometrical and kinematic information not fully ex- ploited in the selection is combined via the BDT for which nine variables are employed [6]. Ordered by their back- ground rejection power, they are: the B candidate IP, ... See full document
9
Search for the rare decay D0→μ+μ−
... → μ + μ − decay is very rare in the SM because of additional helicity suppres- ...the branching fraction ( B ) is of the order of 10 − 18 while the long distance non- perturbative ... See full document
11
First evidence for the decay Bºs → μ+μ
... þ decay in the B þ ! J= c K þ normal- ization channel is also selected similarly to the B 0 ðsÞ ! þ signals, except for the requirements on the IP 2 and ... See full document
10
Search for the lepton flavor violating decays Bs0→e±μ∓ and B0→e±μ∓
... The mass and BDT distributions of these background modes are evaluated from simulated samples, using the probabilities of misidentifying a kaon, pion, and proton as a muon or electron as functions of momenta and ... See full document
10
Search for the decay Bs0→D*∓π±
... signal decay created a large enough cluster in the calorimeter to fire the trigger, events that were triggered independently of the signal decay and those events that were triggered by both the signal ... See full document
9
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