[PDF] Top 20 Rare B decays at LHCb
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Rare B decays at LHCb
... candidate. The analysis procedure is described in detail in Ref. [8]. The dimuon invariant mass of the candidates with a signal-like BDT response is shown in Fig. 2. LHCb observes a signal that is incompatible ... See full document
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Physics and recent results from LHCb
... on rare B decays, CP violation, and charmless B meson decays will be given along with an outlook to the physics perspectives and to the LHCb ... See full document
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Rare B decays and processes with the ATLAS detector
... The B 0 s → μ + μ − decay is a flavour changing neutral current process and the SM predicts a very small branching fraction, ...and LHCb collaborations measured this branching fraction, using the full ... See full document
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Rare B decays and CP-Violation in the B system with the ATLAS Detector
... likelihood contour plot for 68 %, 90 % and 95 % confi- dence intervals. By using a profile likelihood method, these contours do not include the systematic uncertain- ties, but as shown in Table 2 they are small compared ... See full document
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A strange program for LHCb
... in rare decays of strange ...strangeness decays to dimuons for Run-II data [3], as shown in Table ...the LHCb upgrade there will be no hardware trigger (L0) and all the trigger steps will be ... See full document
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Rare radiative leptonic B-decays
... transitions b → s , d which are forbidden at tree level in the Standard Model and are described by penguin and box diagrams, leading to small probabilities of the order of 10 −8 – 10 −10 (see ...by rare ... See full document
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Rare four leptonic B-mesons decays with a neutrino in final state
... of B-decays provides an excellent opportunity to test and improve our understand- ing of the Standard Model of Particle Physics and of its ...the LHCb and CMS collaborations are providing us with an ... See full document
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Rare Decays
... LHCb has measured this ratio based on the full 2011 data sample [24]. Fig. 5 shows the πµµ invariant mass distribu- tion of the candidates selected by a boosted decision tree (BDT). The signal yield has been ... See full document
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Differential distributions in rare four-leptonic B-decays.
... [1] V. Khachatryan et al. [CMS and LHCb Collaborations], Nature 522, 68 (2015). [2] M. Aaboud et al. [ATLAS Collaboration], Eur. Phys. J. C 76, no. 9, 513 (2016). [3] R. Aaij et al. [LHCb Collaboration], ... See full document
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Rare beauty and charm decays at LHCb
... the LHCb collaboration at the time of the HCP conference (November ...for B 0 s → µ + µ − uses a com- bined dataset of 1 fb −1 of √ s = 7 TeV and ... See full document
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LHCb results on rare leptonic decays of B-mesons
... LHCb data can be divided into 2 different parts, corresponding to the LHC Run1 and Run2, see figure 1. Those parts have a different kinematics and usually can not be processed in exactly the same way. So it’s a ... See full document
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Rare Decays at LHCb
... The LHCb detector is a single-arm forward spectrometer covering the pseudorapidity range 2 < η < 5 designed for the study of particles containing b or c ...gives LHCb excellent particle ... See full document
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Studies of rare B > Kπμμ decays using the LHCb experiment
... conditions, LHCb will run with an operational luminosity of L = 2 × 10 33 cm − 2 s − 1 that will increase the occupancy of the sub-detectors, requiring new detectors in areas that are already at occupancy ... See full document
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Recent results on hadronic spectroscopy at LHCb
... The LHCb experiment is optimized to make precision measurements in the flavour ...inclusive b → φφX decays, the observation of charmed pentaquarks and exotic mesons, and the observation of five new ... See full document
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Study of η − η′ mixing from measurement of B (s) 0 → J/ψη(′) decay rates
... γγ decays, photons that, when combined with another photon in the event, form a π 0 → γγ candidate with mass within 25 MeV /c 2 of the π 0 mass (corresponding to about ±3σ around the known mass) are not used in ... See full document
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Charmless Hadronic Beauty Decays at LHCb
... baryonic B decays is threshold enhancement in the baryon anti-baryon ...baryonic B decays [17]. This e ff ect is investigated in the B 0 → pΛπ − and B 0 s → pΛK − decays ... See full document
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Studies of rare B hadron decays to leptons at hadron colliders
... and Λ . Candidate events were selected by constructing a vertex of two muons that satisfy the trigger requirements with one charged track or with two reconstructed tracks of opposite charge, for the case of charged and ... See full document
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Study of the rare decays B-0 -> D-s((*)+)pi(-) and B-0 -> Ds(*)-K+
... smaller than a value that ranges between 0.7 and 0.8. We further suppress backgrounds using a Fisher discriminant F constructed from the scalar sum of the c.m. momenta of all tracks and photons (excluding the B ... See full document
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Search for new decays of the Λ0b baryon at the LHCb experiment
... The ratio of branching fraction of Λ 0 b → ψ(2S)Λ decay relative to the branching fraction of Λ 0 b → J / ψ Λ decay cancels most experimental uncertainties. A measurement with improved precision helps to ... See full document
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Rare radiative leptonic B-decays as a tool to study New Physics
... resonances, and the second one for the whole range of the invariant mass of the lepton pair. We include the long-distance contribution, represented by light and c¯ c vector resonances, using a simple Breit-Wigner formula ... See full document
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