Articles publicats en revistes: Recent submissions
Now showing items 61-80 of 546
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An Adaptive and Scalable Replication Protocol on Power Smart Grids
(Scalable Computing: Practice and Experience, 2011, Vol. 12, no. 3, 2011-09)Cloud based storage systems are known to provide high scalability and reliability overcoming the traditional constraints of static distributed systems. The processing capacity over thousands of machines ... -
Connecting domain-specific features to source code: towards the automatization of dashboard generation
(Cluster Computing, 2020, Vol. 23, 2019-11-05)Dashboards are useful tools for generating knowledge and support decision-making processes, but the extended use of technologies and the increasingly available data asks for user-friendly tools that ... -
Automatic tutoring system to support cross-disciplinary training in Big Data
(The Journal of Supercomputing, 2020, 1818-1852, 2021-02)During the last decade, Big Data has emerged as a powerful alternative to address latent challenges in scalable data management. The ever-growing amount and rapid evolution of tools, techniques, and ... -
LHCb detector performance
(International Journal of Modern Physics A, 2015, Vol. 30, No. 7, 2015-03)The LHCb detector is a forward spectrometer at the Large Hadron Collider (LHC) at CERN. The experiment is designed for precision measurements of CP violation and rare decays of beauty and charm hadrons. ... -
Observation of B0 s→K 7 K ∓ and evidence for B0 s→K − π + decays
(New Journal of Physics, 2014, Vol. 16, 2014-12)Measurements of the branching fractions of → ± ∓ B KK * s 0 and → π± ∓ B K* s 0 decays are performed using a data sample corresponding to − 1.0 fb 1 of protonproton collision data collected with the ... -
Updated measurements of exclusive J/ψ and ψ(2S) production cross-sections in pp collisions at s√=7 TeV
(Journal of Physics G: Nuclear and Particle Physics, 2014, Vol. 41, No. 5, 2014-02)The differential cross-section as a function of rapidity has been measured for the exclusive production of J/ψ and ψ(2S) mesons in proton–proton collisions at √s = 7 TeV, using data collected by the ... -
Identification of beauty and charm quark jets at LHCb
(Journal of Instrumentation, 2015, Vol. 10, 2015-06)Identification of jets originating from beauty and charm quarks is important for measuring Standard Model processes and for searching for new physics. The performance of algorithms developed to select ... -
Observation of charmonium pairs produced exclusively in pp collisions
(Journal of Physics G-Nuclear and Particle Physics, 2014, Vol. 41, No. 11, 2014-09)A search is performed for the central exclusive production of pairs of charmonia produced in proton-proton collisions. Using data corresponding to an integrated luminosity of 3 fb−1 collected at ... -
Precision measurement of the B0 s –B 0 s oscillation frequency with the decay B0 s → D − s π +
(New Journal of Physics, 2013, Vol. 15, 2013-05)A key ingredient to searches for physics beyond the Standard Model in B0 s mixing phenomena is the measurement of the B0 s – B 0 s oscillation frequency, which is equivalent to the mass difference 1ms ... -
B flavour tagging using charm decays at the LHCb experiment
(Journal of Instrumentation, 2015, Vol. 10, 2015-10)An algorithm is described for tagging the flavour content at production of neutral B mesons in the LHCb experiment. The algorithm exploits the correlation of the flavour of a B meson with the charge of ... -
Measurement of CP violation and constraints on the CKM angle γ in B±→DK±with D→K0S π+π− decays
(Nuclear Physics B, 2014, Vol. 888, 2014-11)A model-dependent amplitude analysis of B± → DK± with D → KS0π+π− decays is performed using proton–proton collision data, corresponding to an integrated luminosity of 1fb−1, recorded by LHCb at a ... -
Precision luminosity measurements at LHCb
(Journal of Instrumentation, 2014, Vol. 9, 2014-12)Measuring cross-sections at the LHC requires the luminosity to be determined accurately at each centre-of-mass energy √ s. In this paper results are reported from the luminosity calibrations carried out ... -
Measurement of the track reconstruction efficiency at LHCb
(Journal of Instrumentation, 2015, Vol. 10, No. 7, 2015-02)The determination of track reconstruction efficiencies at LHCb using J/ψ→μ+μ- decays is presented. Efficiencies above 95% are found for the data taking periods in 2010, 2011, and 2012. The ratio of the ... -
Evidence for the decay B0 → J/ψω and measurementof the relative branching fractions of B0s meson decays to J/ψη and J/ψη′
(Nuclear Physics B, 2012, Vol. 867, No. 3, 2012-10)First evidence of the B0→J/ψω decay is found and the B0s→J/ψη and B0s→J/ψη′ decays are studied using a dataset corresponding to an integrated luminosity of 1.0 fb−1 collected by the LHCb experimentin ... -
A Comparative Survey of Feature Extraction and Machine Learning Methods in Diverse Acoustic Environments
(Sensors, 2021, Vol. 21, No. 4, 2021-02)Acoustic event detection and analysis has been widely developed in the last few years for its valuable application in monitoring elderly or dependant people, for surveillance issues, for multimedia ... -
A Smart Campus’ Digital Twin for Sustainable Comfort Monitoring
(Sustainability, 2020, Vol. 12, No. 21, 2020-11)Interdisciplinary cross-cultural and cross-organizational research offers great opportunities for innovative breakthroughs in the field of smart cities, yet it also presents organizational and knowledge ... -
Inferring the votes in a new political landscape: the case of the 2019 Spanish Presidential elections
(Journal of Big Data, 2020, 2020-08)The avalanche of personal and social data circulating in Online Social Networks over the past 10 years has attracted a great deal of interest from Scholars and Practitioners who seek to analyse not only ... -
Markets for data
(Industrial and Corporate Change, 2020, Vol. 29, No. 3, 2020-03)Although datasets are abundant and assumed to be immensely valuable, they are not being shared or traded openly and transparently on a large scale. We investigate the nature of data trading with a ... -
Observations of B0 s → ψ(2S)η and B0 (s) → ψ(2S)π+π− decays
(Nuclear Physics B, 2013, Vol. 871, No. 3, 2013-06)First observations of the B0s→ψ(2S)η,B0→ψ(2S)π+π− and B0s→ψ(2S)π+π− decays are made using a dataset corresponding to an integrated luminosity of 1.0 fb−1 collected by the LHCb experiment in proton–proton ... -
Measurement of relative branching fractions of B decays to ψ(2S) and J/ψ mesons
(The European Physical Journal C, 2012, Vol. 72, No. 2118, 2012-08)The relative rates of B-meson decays into J/ψ and ψ(2S) mesons are measured for the three decay modes in pp collisions recorded with the LHCb detector. The ratios of branching fractions (B) are measured ...