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First observation of the decay B+→π+μ+μ−
(Journal of High Energy Physics, 2012, Vol. 2012, No.12 (Desembre), 2012-12-21)A discovery of the rare decay B + → π + μ + μ − is presented. This decay is observed for the first time, with 5.2 σ significance. The observation is made using pp collision data, corresponding to an ... -
First Observation of the Decay B0s→K−μ+νμ and a Measurement of |Vub|/|Vcb|
(Physical Review Letters, 2021, Vol. 126, 2021-02)The first observation of the suppressed semileptonic B0s→K−μ+νμ decay is reported. Using a data sample recorded in pp collisions in 2012 with the LHCb detector, corresponding to an integrated luminosity ... -
First observation of the decay B0s→K∗0K∗0
(Physics Letters B, 2012,Vol. 709, No. 1-2 (Març 2012), 2012-03-13)The first observation of the decay $\kstarkstar$ is reported using 35\invpb of data collected by LHCb in proton-proton collisions at a centre-of-mass energy of 7 TeV. A total of $49.8 \pm 7.5$ $B^0_s ... -
First observation of the decay B0s→ϕK¯¯¯¯¯∗0
(Journal of High Energy Physics, 2013, Vol. 2013, No.10 (Octubre), 2013-10-28)The first observation of the decay B0s→ϕK¯¯¯¯¯∗0 is reported. The analysis is based on a data sample corresponding to an integrated luminosity of 1.0 fb−1 of pp collisions at s√=7 TeV, collected with ... -
First observation of the decay Bbar0s->D0K*0 and a measurement of the ratio of branching fractions Br(Bbar0s->D0K*0) / Br(Bbar0s->D0 rho0)
(Physics Letters B , 2011, Vol. 706, No. 1 (Novembre), 2011-11-30)The first observation of the decay B0s →D0K∗0 using pp data collected by the LHCb detector at a centreof- mass energy of 7 TeV, corresponding to an integrated luminosity of 36 pb−1, is reported. A ... -
First observation of the decay B¯0s→D0K∗0 and a measurement of the ratio of branching fractions B(B¯0s→D0K∗0)/B(B¯0→D0ρ0)
(Physics Letters B, Vol. 706, No. 1 (Novembre 2011), 2011-11-30)The first observation of the decay B¯s0→D0K⁎0 using pp data collected by the LHCb detector at a centre-of-mass energy of 7 TeV, corresponding to an integrated luminosity of 36 pb−1 , is reported. A ... -
First Observation of the Decay B∗s2(5840)0→B*+K− and Studies of Excited B0s Mesons
(Physical Review Letters, 2013, Vol. 110, No. 15 (Abril), 2013-04-09)The properties of the orbitally excited (L=1) B0s states are studied by using 1.0 fb−1 of pp collisions at √s=7 TeV collected with the LHCb detector. The first observation of the B∗s2(5840)0 meson ... -
First observation of the decays ¯B0(s) → D+sK−π+π− and ¯B0s → Ds1(2536)+π−
(Physical Review D, 2012, Vol. 86 , No.11 (Desembre), 2012-12-20)The first observation of the decays ¯¯¯B0s→D+sK−π+π− and ¯¯¯B0→D+sK−π+π− are reported using an integrated luminosity of 1.0 fb−1 recorded by the LHCb experiment. The branching fractions, normalized ... -
First Observation of Top Quark Production in the Forward Region
(Physical Review Letters, 2015, Vol. 115, No. 11 (Setembre), 2015-09-08)Top quark production in the forward region in proton-proton collisions is observed for the first time. The W+b final state with W→μν is reconstructed using muons with a transverse momentum, pT, larger ... -
First observation of ¯¯¯B0→J/ψK+K− and search for ¯¯¯B0→J/ψϕ decays
(Physical Review D, 2013, Vol. 88 , No.7 (Octubre), 2013-10-14)The first observation of the ¯¯¯B0→J/ψK+K− decay is presented with a data sample corresponding to an integrated luminosity of 1.0 fb−1 of pp collisions at a center-of-mass energy of 7 TeV collected ... -
First observations of the rare decays B + → K + π + π − μ + μ − and B +→ ϕK + μ + μ −
(Journal of High Energy Physics, 2014, Vol. 2014, No.10 (Octubre), 2014-10-09)First observations of the rare decays B + → K + π + π − μ + μ − and B +→ ϕK +μ+μ− are presented using data corresponding to an integrated luminosity of 3.0 fb−1, collected by the LHCb experiment at ... -
Flavour Tagging at LHCb
(2012-06)The identification of the flavour of reconstructed Bd and Bs mesons at production is necessary for the measurements of oscillations and time-dependent CP asymmetries. The calibration and performance of ... -
Forward production of Υ mesons in pp collisions at s√=7 and 8 TeV
(Journal of High Energy Physics, 2015, Vol. 2015, No.11 (Novembre), 2015-11-16)The production of Υ mesons in pp collisions at s√=7 and 8 TeV is studied with the LHCb detector using data samples corresponding to an integrated luminosity of 1 fb−1 and 2 fb−1 respectively. The ... -
Fostering desgin patterns education: An examplar inspired in the angry birds game franchise
(Proceedings of the 18th Brazilian Symposium on Software Quality (SBQS 2019) - Education Track p. 168-177 (2019), 2019-10)Design patterns aim at easing the reuse of design solutions, saving time in solving recurring problems and supporting code maintainability. However, teaching design patterns is challenging. One of the ... -
Fractal Antennas: An Historical Perspective
(Fractal and Fractional, 2020, Vol. 4, No 1, 2020-01)Fractal geometry has been proven to be useful in several disciplines. In the field of antennaengineering, fractal geometry is useful to design small and multiband antenna and arrays, andhigh-directive ... -
Framework TDR for the LHCb Upgrade: Technical Design Report
(2012-03-25)This document is a Framework Technical Design Report for the upgrade of the LHCb experiment. It adds to the information in the Letter of Intent, in particular concerning the foreseen schedule, cost and ... -
From ideas to opportunities: exploring the construction of technology-based entrepreneurial opportunities
(Technology Innovation Management Review, June 2013, 2013-06)The transformation of business ideas into market opportunities is at the core of entrepreneurship. Nevertheless, the complexity of such a transformative process is seen to change depending on the variables ... -
From Master Plan to punctual interventions. Slums in Barcelona
(2014-06-11)The sloppy process of urbanization that took place in the outskirts of Barcelona from mid XIXth to mid XXth century resulted on large informal slums with evident urban deficiencies. The Metropolitan ... -
From Raw Data to Meaningful Information: A Representational Approach to Cadastral Databases in Relation to Urban Planning
(Future Internet, 2014, Vol. 6, No. 4 (2014), 2014-10-24)Digesting the data hose that cities are constantly producing is complex; data is usually structured with different criteria, which makes comparative analysis of multiple cities challenging. However, the ... -
Fuzzy Logic Control for Multiresolutive Adaptive PN Acquisition Scheme in Time-Varying Multipath Ionospheric Channel
(Fuzzy Logic - Controls, Concepts, Theories and Applications, 2012-03)Communication with remote places is a challenge often solved using satellites. However, when trying to reach Antarctic stations, this solution suffers from poor visibility range and high operational ...