data centric storage with network as the carrier is vulnerable to external attacks, resulting in data loss and tampering. We propose a method of tamper proofing for block chaining data without centralization and centr...
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data centric storage with network as the carrier is vulnerable to external attacks, resulting in data loss and tampering. We propose a method of tamper proofing for block chaining data without centralization and centralization. According to the technology principle of bitcoin block chain, the network data information is protected by block chain encryption technology, and the security of high information tamper resistant is realized. A block chain data storage algorithm based on hash table is hereby proposed, which can get enough address space to save all the data,and make block chain form a time sequence to achieve the safe transmission of data. The research results show that the data protection method has very high tamper resistance ability because of the high security of encrypted digital block chaining technology. The block chain implements the value transfer without relying on centralized organization.
The ratio of the Bs0 and B0 fragmentation fractions, fs/fd, in proton-proton collisions at the LHC, is obtained as a function of B-meson transverse momentum and collision center-of-mass energy from the combined analys...
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The ratio of the Bs0 and B0 fragmentation fractions, fs/fd, in proton-proton collisions at the LHC, is obtained as a function of B-meson transverse momentum and collision center-of-mass energy from the combined analysis of different B-decay channels measured by the LHCb experiment. The results are described by a linear function of the meson transverse momentum or with a function inspired by Tsallis statistics. Precise measurements of the branching fractions of the Bs0→J/ψϕ and Bs0→Ds−π+ decays are performed, reducing their uncertainty by about a factor of 2 with respect to previous world averages. Numerous Bs0 decay branching fractions, measured at the LHCb experiment, are also updated using the new values of fs/fd and branching fractions of normalization channels. These results reduce a major source of systematic uncertainty in several searches for new physics performed through measurements of Bs0 branching fractions.
A simultaneous analysis of the B+ → K++− and B0 → K∗0+− decays is performed to test muon-electron universality in two ranges of the square of the dilepton invariant mass, q2. The measurement uses a sample of beauty ...
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A search for the decay (Equation presented) is performed using proton-proton collisions at centre-of-mass energies of 7, 8, and 13 TeV collected by the LHCb experiment and corresponding to an integrated luminosity of ...
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A study of B+ → J/ψηK+ decays, followed by J/ψ → µ+µ− and η → γγ, is performed using a dataset collected with the LHCb detector in proton-proton collisions at centre-of-mass energies of 7, 8 and 13 ...
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The first observation of the semileptonic b-baryon decay (Equation presented), with a significance of 6.1σ, is reported using a data sample corresponding to 3fb−1 of integrated luminosity, collected by the LHCb exper...
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The production rate of Bs0 mesons relative to B0 mesons is measured by the LHCb experiment in pp collisions at a center-of-mass energy √s = 13 TeV over the forward rapidity interval 2 s0 to B0 cross-sections with mul...
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A measurement of the ratios of the effective decay widths of D0 → π−π+ and D0 → K−K+ decays over that of D0 → K−π+ decays is performed with the LHCb experiment using proton-proton collisions at a centre-of-mass ...
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The formation of polar nanoregions through solid-solution additions is known to enhance significantly the functional properties of ferroelectric materials. Despite considerable progress in characterizing the microscop...
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The formation of polar nanoregions through solid-solution additions is known to enhance significantly the functional properties of ferroelectric materials. Despite considerable progress in characterizing the microscopic behavior of polar nanoregions (PNR), understanding their real-space atomic structure and dynamics of their formation remains a considerable challenge. Here, using the method of dynamic pair distribution function, we provide direct insights into the role of solid-solution additions towards the stabilization of polar nanoregions in the Pb-free ferroelectric of Ba(Zr,Ti)O3. It is shown that for an optimum level of substitution of Ti by larger Zr ions, the dynamics of atomic displacements for ferroelectric polarization are slowed sufficiently below THz frequencies, which leads to increased local correlation among dipoles within PNRs. The dynamic pair distribution function technique demonstrates a unique capability to obtain insights into locally correlated atomic dynamics in disordered materials, including new Pb-free ferroelectrics, which is necessary to understand and control their functional properties.
The (Equation presented) decay is observed using proton-proton collisions collected by the LHCb experiment at a centre-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 5.4 fb−1. The (Equation pre...
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