341 research outputs found

    Finanzas: Costo de capital de Nicapapel, S.A

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    El Costo de Capital se define como una herramienta fundamental al momento de llevar cabo una inversión, es por eso que la empresa NICAPAPEL, S.A. está haciendo uso de esta herramienta financiera para obtener una fuente de financiamiento que le permita llevar a cabo el proyecto de inversión que pretende ejecutar ya que no cuenta con el capital suficiente para hacerle frente a esta inversión. Se procederá a evaluar las fuentes disponibles de fondos a largo plazo, porque tales fuentes suministrarán el financiamiento que la empresa requiere para apoyar las actividades de elaboración del presupuesto de capital, el proceso de evaluación y selección de inversiones a largo plazo. Este método le permite a la empresa obtener una fuente de financiamiento, reducir costo de deuda y aumentar su liquidez. El trabajo se da en una visión más clara y precisa en cuanto al desarrollo y aplicación didáctica de este tema. El trabajo consta de cuatro acápites: El primer acápite aborda las generalidades del Costo de Capital tomando en cuenta las bases fundamentales de las finanzas que nos permitirá conocer en teoría cada uno de los términos que se aplican en los acápites siguientes. El segundo acápite contiene los factores que afectan la aplicación del costo del capital si no se toman en cuenta las medidas necesarias para determinarlo. Dentro de cada uno de ellos existen condiciones que deben cumplirse para que el proyecto en curso no sea afectado. El tercer acápite muestra el costo que la empresa tiene que pagar al momento de emitir dividendos, para poder financiar los costos del proyecto. Lo cual sólo será posible actualizando el valor actual de los dividendos en mercado financiero. El cuarto acápite muestra los criterios que deben seguirse al realizar el proyecto de inversión, el costo que incurre la empresa al momento de financiar la inversión a partir de capital propio y por último se aborda costo que genera un préstamo bancario contraído con una entidad financiera a largo plazo. El trabajo concluye con un caso práctico aplicado a la empresa NICAPAPEL, S.A. en el cual se toman en cuenta todos los criterios relacionados en cada uno de los acápites abordados, asimismo se aplican todas las técnicas que el ejercicio requiere para una mayor compresión del tema. Es difícil definir en materia de Finanzas todos los factores que en un proyecto se involucran, puesto que la realidad está muy alejada de la teoría científica, ya que muchas veces son los hechos los que cuentan en un trabajo científico

    Constraints on the KS0μ+μK^0_S \rightarrow \mu^+ \mu^- Branching Fraction

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    International audienceA search for the decay KS0→μ+μ- is performed using proton-proton collision data, corresponding to an integrated luminosity of 5.6  fb-1 and collected with the LHCb experiment during 2016, 2017, and 2018 at a center-of-mass energy of 13 TeV. The observed signal yield is consistent with zero, yielding an upper limit of B(KS0→μ+μ-)<2.2×10-10 at 90% C.L.. The limit reduces to B(KS0→μ+μ-)<2.1×10-10 at 90% C.L. once combined with the result from data taken in 2011 and 2012

    Observation of the Λb0χc1(3872)pK\Lambda_b^0\rightarrow \chi_{c1}(3872)pK^- decay

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    International audienceUsing proton-proton collision data, collected with the LHCb detector and corresponding to 1.0, 2.0 and 1.9 fb1^{−1} of integrated luminosity at the centre-of-mass energies of 7, 8, and 13 TeV, respectively, the decay {\Lambda}_{\mathrm{b}}^0\to {\upchi}_{\mathrm{c}1} (3872)pK^{−} with χc1_{c1}(3872) → J/ψ π+^{+}π^{−} is observed for the first time. The significance of the observed signal is in excess of seven standard deviations. It is found that (58 ± 15)% of the decays proceed via the two-body intermediate state χc1_{c1}(3872)Λ(1520). The branching fraction with respect to that of the Λb0 {\Lambda}_{\mathrm{b}}^0 → ψ(2S)pK^{−} decay mode, where the ψ(2S) meson is reconstructed in the J/ψ π+^{+}π^{−} final state, is measured to be: $ \frac{\beta \left({\Lambda}_{\mathrm{b}}^0\to {\upchi}_{\mathrm{c}1}(3872){\mathrm{pK}}^{-}\right)}{\beta \left({\Lambda}_{\mathrm{b}}^0\to \uppsi \left(2\mathrm{S}\right){\mathrm{pK}}^{-}\right)}\times \frac{\beta \left({\upchi}_{\mathrm{c}1}(3872)\to \mathrm{J}/\uppsi {\uppi}^{+}{\uppi}^{-}\right)}{\beta \left(\uppsi \left(2\mathrm{S}\right)\to \mathrm{J}/\uppsi {\uppi}^{+}{\uppi}^{-}\right)}=\left(5.4\pm 1.1\pm 0.2\right)\times {10}^{-2},

    Search for the doubly charmed baryon Ξ+cc

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    Measurement of fs/fuf_s / f_u Variation with Proton-Proton Collision Energy and BB-Meson Kinematics

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    International audienceThe ratio of the Bs0 and B+ fragmentation fractions fs and fu is studied with Bs0→J/ψϕ and B+→J/ψK+ decays using data collected by the LHCb experiment in proton-proton collisions at 7, 8, and 13 TeV center-of-mass energies. The analysis is performed in bins of B-meson momentum, longitudinal momentum, transverse momentum, pseudorapidity, and rapidity. The fragmentation-fraction ratio fs/fu is observed to depend on the B-meson transverse momentum with a significance of 6.0σ. This dependency is driven by the 13 TeV sample (8.7σ), while the results for the other collision energies are not significant when considered separately. Furthermore, the results show a 4.8σ evidence for an increase of fs/fu as a function of collision energy

    Measurement of the branching fraction of the decay Bs0KS0KS0B_s^0\to K_S^0 K_S^0

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    International audienceA measurement of the branching fraction of the decay Bs0→KS0KS0 is performed using proton–proton collision data corresponding to an integrated luminosity of 5  fb-1 collected by the LHCb experiment between 2011 and 2016. The branching fraction is determined to be B(Bs0→KS0KS0)=[8.3±1.6(stat)±0.9(syst)±0.8(norm)±0.3(fs/fd)]×10-6, where the first uncertainty is statistical, the second is systematic, and the third and fourth are due to uncertainties on the branching fraction of the normalization mode B0→ϕKS0 and the ratio of hadronization fractions fs/fd. This is the most precise measurement of this branching fraction to date. Furthermore, a measurement of the branching fraction of the decay B0→KS0KS0 is performed relative to that of the Bs0→KS0KS0 channel, and is found to be B(B0→KS0KS0)B(Bs0→KS0KS0)=[7.5±3.1(stat)±0.5(syst)±0.3(fs/fd)]×10-2

    Updated measurement of time-dependent CP-violating observables in Bs0J/ψK+KB^{0}_{s}\to J/\psi K^+ K^- decays

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    International audienceThe decay-time-dependent CPCP asymmetry in Bs0J/ψK+K{{B} ^0_{s}} \rightarrow J/\psi {{K} ^+} {{K} ^-} decays is measured using proton–proton collision data, corresponding to an integrated luminosity of 1.9fb11.9\,\mathrm{fb}^{-1} , collected with the LHCb detector at a centre-of-mass energy of 13TeV13\,\mathrm {TeV} in 2015 and 2016. Using a sample of approximately 117 000 signal decays with an invariant K+K{{K} ^+} {{K} ^-} mass in the vicinity of the ϕ(1020)\phi (1020) resonance, the CPCP -violating phase ϕs\phi _s is measured, along with the difference in decay widths of the light and heavy mass eigenstates of the Bs0{{B} ^0_{s}} - Bs0{{\overline{B}{}} {}^0_{s}} system, ΔΓs\Delta \Gamma _s . The difference of the average Bs0{{B} ^0_{s}} and B0{{B} ^0} meson decay widths, ΓsΓd\Gamma _s-\Gamma _d , is determined using in addition a sample of B0J/ψK+π{{B} ^0} \rightarrow J/\psi {{K} ^+} {{\pi } ^-} decays. The values obtained are ϕs=0.083±0.041±0.006rad\phi _s = -0.083\pm 0.041\pm 0.006\mathrm { \,rad} , ΔΓs=0.077±0.008±0.003ps1\Delta \Gamma _s = 0.077 \pm 0.008 \pm 0.003 {\mathrm { \,ps^{-1}}} and ΓsΓd=0.0041±0.0024±0.0015ps1\Gamma _s-\Gamma _d = -0.0041 \pm 0.0024 \pm 0.0015{\mathrm { \,ps^{-1}}} , where the first uncertainty is statistical and the second systematic. These are the most precise single measurements of these quantities to date and are consistent with expectations based on the Standard Model and with a previous LHCb analysis of this decay using data recorded at centre-of-mass energies 7 and 8 TeV. Finally, the results are combined with recent results from Bs0J/ψπ+π{{B} ^0_{s}} \rightarrow J/\psi {{\pi } ^+} {{\pi } ^-} decays obtained using the same dataset as this analysis, and with previous independent LHCb results

    Test of lepton universality with Λb0pK+ {\Lambda}_b^0\to {pK}^{-}{\mathrm{\ell}}^{+}{\mathrm{\ell}}^{-} decays

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    International audienceThe ratio of branching fractions of the decays Λb0 {\Lambda}_b^0 → pK^{−}e+^{+}e^{−} and Λb0 {\Lambda}_b^0 → pK^{−}μ+^{+}μ^{−},RpK1 {R}_{pK}^{-1} , is measured for the first time using proton-proton collision data corresponding to an integrated luminosity of 4.7 fb1^{−1} recorded with the LHCb experiment at center-of-mass energies of 7, 8 and 13 TeV. In the dilepton mass-squared range 0.1 < q2^{2}< 6.0 GeV2^{2}/c4^{4} and the pK^{−} mass range m(pK^{−}) < 2600 MeV/c2^{2}, the ratio of branching fractions is measured to be RpK1=1.170.16+0.18±0.07 {R}_{pK}^{-1}={1.17}_{-0.16}^{+0.18}\pm 0.07 , where the first uncertainty is statistical and the second systematic. This is the first test of lepton universality with b baryons and the first observation of the decay Λb0 {\Lambda}_b^0 → pK^{−}e+^{+}e^{−}.[graphic not available: see fulltext

    Measurement of Vcb|V_{cb}| with Bs0Ds()μ+νμB_s^0 \to D_s^{(*)-} \mu^+ \nu_{\mu} decays

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    International audienceThe element |Vcb| of the Cabibbo-Kobayashi-Maskawa matrix is measured using semileptonic Bs0 decays produced in proton-proton collision data collected with the LHCb detector at center-of-mass energies of 7 and 8 TeV, corresponding to an integrated luminosity of 3  fb-1. Rates of Bs0→Ds-μ+νμ and Bs0→Ds*-μ+νμ decays are analyzed using hadronic form-factor parametrizations derived either by Caprini, Lellouch and Neubert (CLN) or by Boyd, Grinstein and Lebed (BGL). The measured values of |Vcb| are (41.4±0.6±0.9±1.2)×10-3 and (42.3±0.8±0.9±1.2)×10-3 in the CLN and BGL parametrization, respectively. The first uncertainty is statistical, the second systematic, and the third is due to the external inputs used in the measurement. These results are in agreement with those obtained from decays of B+ and B0 mesons. They are the first determinations of |Vcb| at a hadron-collider experiment and the first using Bs0 meson decays

    Measurement of CPCP-Averaged Observables in the B0K0μ+μB^{0}\rightarrow K^{*0}\mu^{+}\mu^{-} Decay

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    International audienceAn angular analysis of the B0→K*0(→K+π-)μ+μ- decay is presented using a dataset corresponding to an integrated luminosity of 4.7  fb-1 of pp collision data collected with the LHCb experiment. The full set of CP-averaged observables are determined in bins of the invariant mass squared of the dimuon system. Contamination from decays with the K+π- system in an S-wave configuration is taken into account. The tension seen between the previous LHCb results and the standard model predictions persists with the new data. The precise value of the significance of this tension depends on the choice of theory nuisance parameters
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