669 research outputs found

    O ensino de canto nos ramos genérico e vocacional no 1º ciclo do ensino básico: um estudo de caso múltiplo

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    Tese de Doutoramento em Estudos da Criança (área de especialização em Educação Musical).Em Portugal o Ensino Básico de música está ramificado logo a partir do 1º Ciclo nas vertentes genérica (nas escolas de ensino dito “regular”) e especializada (nas escolas de ensino “especializado”). Estas vertentes não se encontram organizadas segundo um modelo lógico, coeso ou suficientemente articulado. São também escassas na literatura as referências às práticas pedagógicas concretas do ensino da música em contexto de sala de aula, particularmente no que se refere ao objeto deste estudo: o ensino de canto na educação infantil. Numa cuidada revisão de literatura sobre esta temática sobressaíram algumas questões fulcrais para a investigação deste problema curricular: de que forma se ensina as crianças a cantar? Será que se ensina a cantar ou simplesmente se ensinam canções? Haverá diferentes abordagens ao ensino de canto numa escola genérica (na área de Expressão e Educação Musical, e na área de Ensino de Música do âmbito das AEC) ou numa escola especializada (na disciplina de Iniciação Musical)? E que diferença fará no ensino de canto no 1º Ciclo o professor ser especializado ou generalista? Qual o peso da formação vocal na formação destes professores e qual o impacto dessa formação nas suas práticas pedagógicas? Com base nestas interrogações, e selecionando o ensino de canto nos ramos genérico e vocacional do 1º ciclo do Ensino Básico como foco do estudo, definiram-se quatro objetivos que nortearam toda a investigação: averiguar de que modo é realizado o ensino de canto; analisar os programas e refletir acerca da sua implementação prática descrevendo as metodologias utilizadas; fazer o levantamento das práticas pedagógicas ao nível da educação vocal e do repertório trabalhado; e enunciar conclusões fundamentadas no processo de investigação quanto a possíveis melhorias a realizar ao nível do ensino de canto e da educação vocal infantil. Efetuou-se um estudo de caso múltiplo alicerçado no modelo de análise qualitativa e considerando três casos: o ensino genérico com o professor generalista (EG Pg); o ensino genérico com professor especializado em música (EG Pe); e o ensino especializado da música (EE Pe). A recolha dos dados foi realizada nos dois ramos de ensino (genérico e especializado) através de entrevistas a professores, alunos e diretores de escolas do 1º ciclo do Ensino Básico e através de observação direta de aulas e de apresentações públicas de alunos, também do 1º ciclo do Ensino Básico (observação não participante e distanciada, respetivamente). Foram utilizadas técnicas de análise documental (designadamente de programas, orientações curriculares e legislação), técnicas de seleção e codificação da informação recolhida por entrevista, e técnicas de análise de conteúdo, categorização e interpretação. Os resultados confirmaram estudos de outros autores que indicam que a ramificação do ensino da música não faz sentido no início da Educação Básica, também no que concerne ao ensino de canto. Nos casos estudados - Expressão e Educação Musical (EG Pg), Ensino de Música (AEC EG) e Iniciação Musical (EE) - o canto coletivo é prática generalizada nas aulas; todavia, o ensino de canto é pobre, ou quase inexistente, devido à falta de formação dos professores acerca da fisiologia e da técnica vocal. No ensino especializado vão surgindo iniciativas, mas pontuais e fortuitas. Não obstante a voz ser mencionada nos programas estudados como um recurso a desenvolver, o trabalho vocal proposto reduz-se a cantar canções e não a desenvolver competências mais específicas de educação vocal. A investigação demonstrou ser imprescindível repensar a educação em termos holísticos, pedagógicos e não economicistas, sugerindo a implementação do regime de ensino articulado, logo ao nível do 1º ciclo, em modelo gratuito e acessível a todos, de modo a rentabilizar recursos humanos e materiais e promover a equidade de acesso à formação. O estudo revelou ainda que o ensino de música deveria ser sempre da responsabilidade de docentes especializados, ser de oferta obrigatória e incluir o ensino de canto; não obstante, os intervenientes no estudo reclamam, para já, a aplicação do regime de coadjuvação entre professor generalista e professor especializado, previsto na Lei, mas frequentemente não implementado. Finalmente é conclusão deste estudo que a melhoria do processo pedagógico de ensino da música, e concretamente da educação vocal para todas as crianças portuguesas só poderá ser alcançada mediante decisão política e governamental.In Portugal music education is branched right from the 1st cycle of elementary school and offered in the generalist schools (also called “regular schools”) and in the specialized schools. These branches are not organized in a logical, cohesive or sufficiently articulated model. In the literature there are scarce references to specific pedagogical practices of music education in the context of the classroom, particularly in relation to the object of this study: the teaching of singing in early childhood education. A careful review of the literature on this topic highlighted some key issues to the research of this curricular problem: how are children taught to sing? Are they taught how to sing or are they merely taught a few songs? Are there different approaches to the teaching of singing in general schools (in the ‘Expression and Music Education’ area, and in the ‘Music Teaching’ area of the scope of AEC - Curricular Enrichment Activities) or in specialized schools (in the ‘Music Initiation’ curricular subject)? What is the difference in the teaching of singing in the 1st Cycle by a generalist or a specialized teacher? In what way is vocal training considered in the education of these teachers and what is the impact of such training in their teaching? With these research questions in mind and having the teaching of singing in general and vocational branches of the 1st cycle of Basic Education as the focus of the study, four main objectives were defined and guided the whole process of research: to ascertain how the teaching of singing is performed; to analyze the curricular programs and to reflect on their actual implementation, describing the methodologies used in class; to survey the pedagogical practices in terms of vocal education and studied repertoire; and to present research-based conclusions that migh suggest ways for possible improvements of the teaching of singing and of children vocal education. The research consisted of a multiple case study grounded in the qualitative paradigm and it envolved three cases: the teaching of the generalist teacher in the general school (EG Pg); the teaching of the specialized teacher in the general school (EG Pe); and the teaching of the specialized teacher in the specialized school (EE Pe). The data collection was undertaken in both the general and specialized branches of the 1st cycle of Elementary School through interviews to the teachers, students and school principals and through direct observation of classes and public performances of students. Several research techniques were used: document analysis (applied to programs, curriculum guidelines and legislation); selection and codification of data collected by interview; content analysis; thematic categorization; and interpretation techniques. The results confirmed earlier findings of other authors which indicate that the ramification of music education does not make sense at the beginning of Elementary School, also with regard to the teaching of singing. In the studied cases - Expression and Music Education (EG Pg), Music Teaching (AEC EG) and Music Initiation (EE) - collective singing is widespread; however voice education is poor, or almost non-existant in consequence of the lack of teachers training and knowledge about the physiology and vocal techniques. In specialized schools there are some initiatives, but occasional. Although some importance is given to voice in the curricular programs studied, the actual vocal work in class is limited to singing songs, and specific vocal skills and competences are not developed. This research project has shown that it is essential to rethink education in holistic, pedagogical and non-economical terms, and it suggests the importance of recommending the implementation of the articulated regime of student attendance [students attending both the generalist and the specialized school] right from the 1st cycle of studies, music education and vocal training to all children. The study also revealed that music education should be mandatory, always include the teaching of singing, and always be the responsibility of specialist teachers; however, those involved in the study claim, for now, the application of the system of specialized coadjuvant teacher, in the context of the generalist school. This cooperative system is vigent, but often not implemented. Finally another conclusion of this study is that the improvement of the educational process of music teaching, and particularly of vocal education for all Portuguese children, can only be achieved through political and governmental decision

    O ensino de canto em Portugal : uma perspectiva analítico-reflexiva a partir de meados do século XX

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    Mestrado em MúsicaO presente trabalho tem como principal objectivo caracterizar o Ensino de Canto em Portugal a partir de meados do Século XX. Distinguem-se três capítulos: o Enquadramento Teórico, a Investigação Empírica e a Conclusão. Na primeira secção, efectua-se uma breve sinopse dos principais momentos da História do Canto, realizando também uma análise à situação vivida em Portugal, mais concretamente no que se refere ao Ensino Artístico; na Investigação Empírica, e após a realização de inquéritos a Professores de Canto, efectua-se a análise de dados com base numa metodologia qualitativa; por fim, a Conclusão sistematiza o que de mais relevante se conseguiu apurar ao longo da investigação, apresentando respostas aos objectivos inicialmente formulados. Esta dissertação é um contributo para apreender a evolução das diferentes metodologias de Ensino de Canto, e pretende proporcionar um espaço de reflexão acerca da situação do Ensino Artístico em Portugal. ABSTRACT: The main purpose of the present work is to characterize Singing Tuition in Portugal from middle of Twentieth Century. Three chapters are distinguished: the Theoretical Framing, the Empirical Inquiry and the Conclusion. In the first chapter a synopsis of the main moments of the History of Singing is made. An analysis of the situation lived in Portugal, specifically in the Artistic Tuition, is also carrying through; in the second chapter, Empirical Inquiry, a qualitative analysis of data, obtained from the accomplishment of inquiries by singing teachers, is presented; finally, in the Conclusion chapter the most relevant information obtained throughout the inquiry is systemized, presenting answers to the initial goals. This work is one contribution to apprehend the evolution of the different Singing Tuition methodologies, and intends to provide a space of reflection concerning the situation of Artistic Education in Portugal

    Les droits disciplinaires des fonctions publiques : « unification », « harmonisation » ou « distanciation ». A propos de la loi du 26 avril 2016 relative à la déontologie et aux droits et obligations des fonctionnaires

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    The production of tt‾ , W+bb‾ and W+cc‾ is studied in the forward region of proton–proton collisions collected at a centre-of-mass energy of 8 TeV by the LHCb experiment, corresponding to an integrated luminosity of 1.98±0.02 fb−1 . The W bosons are reconstructed in the decays W→ℓν , where ℓ denotes muon or electron, while the b and c quarks are reconstructed as jets. All measured cross-sections are in agreement with next-to-leading-order Standard Model predictions.The production of ttt\overline{t}, W+bbW+b\overline{b} and W+ccW+c\overline{c} is studied in the forward region of proton-proton collisions collected at a centre-of-mass energy of 8 TeV by the LHCb experiment, corresponding to an integrated luminosity of 1.98 ±\pm 0.02 \mbox{fb}^{-1}. The WW bosons are reconstructed in the decays WνW\rightarrow\ell\nu, where \ell denotes muon or electron, while the bb and cc quarks are reconstructed as jets. All measured cross-sections are in agreement with next-to-leading-order Standard Model predictions

    Physics case for an LHCb Upgrade II - Opportunities in flavour physics, and beyond, in the HL-LHC era

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    The LHCb Upgrade II will fully exploit the flavour-physics opportunities of the HL-LHC, and study additional physics topics that take advantage of the forward acceptance of the LHCb spectrometer. The LHCb Upgrade I will begin operation in 2020. Consolidation will occur, and modest enhancements of the Upgrade I detector will be installed, in Long Shutdown 3 of the LHC (2025) and these are discussed here. The main Upgrade II detector will be installed in long shutdown 4 of the LHC (2030) and will build on the strengths of the current LHCb experiment and the Upgrade I. It will operate at a luminosity up to 2×1034 cm−2s−1, ten times that of the Upgrade I detector. New detector components will improve the intrinsic performance of the experiment in certain key areas. An Expression Of Interest proposing Upgrade II was submitted in February 2017. The physics case for the Upgrade II is presented here in more depth. CP-violating phases will be measured with precisions unattainable at any other envisaged facility. The experiment will probe b → sl+l−and b → dl+l− transitions in both muon and electron decays in modes not accessible at Upgrade I. Minimal flavour violation will be tested with a precision measurement of the ratio of B(B0 → μ+μ−)/B(Bs → μ+μ−). Probing charm CP violation at the 10−5 level may result in its long sought discovery. Major advances in hadron spectroscopy will be possible, which will be powerful probes of low energy QCD. Upgrade II potentially will have the highest sensitivity of all the LHC experiments on the Higgs to charm-quark couplings. Generically, the new physics mass scale probed, for fixed couplings, will almost double compared with the pre-HL-LHC era; this extended reach for flavour physics is similar to that which would be achieved by the HE-LHC proposal for the energy frontier

    LHCb upgrade software and computing : technical design report

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    This document reports the Research and Development activities that are carried out in the software and computing domains in view of the upgrade of the LHCb experiment. The implementation of a full software trigger implies major changes in the core software framework, in the event data model, and in the reconstruction algorithms. The increase of the data volumes for both real and simulated datasets requires a corresponding scaling of the distributed computing infrastructure. An implementation plan in both domains is presented, together with a risk assessment analysis

    Study of the BΛc+ΛˉcKB^{-} \to \Lambda_{c}^{+} \bar{\Lambda}_{c}^{-} K^{-} decay

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    The decay BΛc+ΛˉcKB^{-} \to \Lambda_{c}^{+} \bar{\Lambda}_{c}^{-} K^{-} is studied in proton-proton collisions at a center-of-mass energy of s=13\sqrt{s}=13 TeV using data corresponding to an integrated luminosity of 5 fb1\mathrm{fb}^{-1} collected by the LHCb experiment. In the Λc+K\Lambda_{c}^+ K^{-} system, the Ξc(2930)0\Xi_{c}(2930)^{0} state observed at the BaBar and Belle experiments is resolved into two narrower states, Ξc(2923)0\Xi_{c}(2923)^{0} and Ξc(2939)0\Xi_{c}(2939)^{0}, whose masses and widths are measured to be m(Ξc(2923)0)=2924.5±0.4±1.1MeV,m(Ξc(2939)0)=2938.5±0.9±2.3MeV,Γ(Ξc(2923)0)=0004.8±0.9±1.5MeV,Γ(Ξc(2939)0)=0011.0±1.9±7.5MeV, m(\Xi_{c}(2923)^{0}) = 2924.5 \pm 0.4 \pm 1.1 \,\mathrm{MeV}, \\ m(\Xi_{c}(2939)^{0}) = 2938.5 \pm 0.9 \pm 2.3 \,\mathrm{MeV}, \\ \Gamma(\Xi_{c}(2923)^{0}) = \phantom{000}4.8 \pm 0.9 \pm 1.5 \,\mathrm{MeV},\\ \Gamma(\Xi_{c}(2939)^{0}) = \phantom{00}11.0 \pm 1.9 \pm 7.5 \,\mathrm{MeV}, where the first uncertainties are statistical and the second systematic. The results are consistent with a previous LHCb measurement using a prompt Λc+K\Lambda_{c}^{+} K^{-} sample. Evidence of a new Ξc(2880)0\Xi_{c}(2880)^{0} state is found with a local significance of 3.8σ3.8\,\sigma, whose mass and width are measured to be 2881.8±3.1±8.5MeV2881.8 \pm 3.1 \pm 8.5\,\mathrm{MeV} and 12.4±5.3±5.8MeV12.4 \pm 5.3 \pm 5.8 \,\mathrm{MeV}, respectively. In addition, evidence of a new decay mode Ξc(2790)0Λc+K\Xi_{c}(2790)^{0} \to \Lambda_{c}^{+} K^{-} is found with a significance of 3.7σ3.7\,\sigma. The relative branching fraction of BΛc+ΛˉcKB^{-} \to \Lambda_{c}^{+} \bar{\Lambda}_{c}^{-} K^{-} with respect to the BD+DKB^{-} \to D^{+} D^{-} K^{-} decay is measured to be 2.36±0.11±0.22±0.252.36 \pm 0.11 \pm 0.22 \pm 0.25, where the first uncertainty is statistical, the second systematic and the third originates from the branching fractions of charm hadron decays.Comment: All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2022-028.html (LHCb public pages

    Measurement of the ratios of branching fractions R(D)\mathcal{R}(D^{*}) and R(D0)\mathcal{R}(D^{0})

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    The ratios of branching fractions R(D)B(BˉDτνˉτ)/B(BˉDμνˉμ)\mathcal{R}(D^{*})\equiv\mathcal{B}(\bar{B}\to D^{*}\tau^{-}\bar{\nu}_{\tau})/\mathcal{B}(\bar{B}\to D^{*}\mu^{-}\bar{\nu}_{\mu}) and R(D0)B(BD0τνˉτ)/B(BD0μνˉμ)\mathcal{R}(D^{0})\equiv\mathcal{B}(B^{-}\to D^{0}\tau^{-}\bar{\nu}_{\tau})/\mathcal{B}(B^{-}\to D^{0}\mu^{-}\bar{\nu}_{\mu}) are measured, assuming isospin symmetry, using a sample of proton-proton collision data corresponding to 3.0 fb1{ }^{-1} of integrated luminosity recorded by the LHCb experiment during 2011 and 2012. The tau lepton is identified in the decay mode τμντνˉμ\tau^{-}\to\mu^{-}\nu_{\tau}\bar{\nu}_{\mu}. The measured values are R(D)=0.281±0.018±0.024\mathcal{R}(D^{*})=0.281\pm0.018\pm0.024 and R(D0)=0.441±0.060±0.066\mathcal{R}(D^{0})=0.441\pm0.060\pm0.066, where the first uncertainty is statistical and the second is systematic. The correlation between these measurements is ρ=0.43\rho=-0.43. Results are consistent with the current average of these quantities and are at a combined 1.9 standard deviations from the predictions based on lepton flavor universality in the Standard Model.Comment: All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2022-039.html (LHCb public pages

    Multidifferential study of identified charged hadron distributions in ZZ-tagged jets in proton-proton collisions at s=\sqrt{s}=13 TeV

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    Jet fragmentation functions are measured for the first time in proton-proton collisions for charged pions, kaons, and protons within jets recoiling against a ZZ boson. The charged-hadron distributions are studied longitudinally and transversely to the jet direction for jets with transverse momentum 20 <pT<100< p_{\textrm{T}} < 100 GeV and in the pseudorapidity range 2.5<η<42.5 < \eta < 4. The data sample was collected with the LHCb experiment at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 1.64 fb1^{-1}. Triple differential distributions as a function of the hadron longitudinal momentum fraction, hadron transverse momentum, and jet transverse momentum are also measured for the first time. This helps constrain transverse-momentum-dependent fragmentation functions. Differences in the shapes and magnitudes of the measured distributions for the different hadron species provide insights into the hadronization process for jets predominantly initiated by light quarks.Comment: All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2022-013.html (LHCb public pages

    Measurement of forward WeνW\to e\nu production in pppp collisions at s=8\sqrt{s}=8\,TeV

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    A measurement of the cross-section for WeνW \to e\nu production in pppp collisions is presented using data corresponding to an integrated luminosity of 22\,fb1^{-1} collected by the LHCb experiment at a centre-of-mass energy of s=8\sqrt{s}=8\,TeV. The electrons are required to have more than 2020\,GeV of transverse momentum and to lie between 2.00 and 4.25 in pseudorapidity. The inclusive WW production cross-sections, where the WW decays to eνe\nu, are measured to be \begin{align*} \begin{split} \sigma_{W^{+} \to e^{+}\nu_{e}}&=1124.4\pm 2.1\pm 21.5\pm 11.2\pm 13.0\,\mathrm{pb},\\ \sigma_{W^{-} \to e^{-}\bar{\nu}_{e}}&=\,\,\,809.0\pm 1.9\pm 18.1\pm\,\,\,7.0\pm \phantom{0}9.4\,\mathrm{pb}, \end{split} \end{align*} where the first uncertainties are statistical, the second are systematic, the third are due to the knowledge of the LHC beam energy and the fourth are due to the luminosity determination. Differential cross-sections as a function of the electron pseudorapidity are measured. The W+/WW^{+}/W^{-} cross-section ratio and production charge asymmetry are also reported. Results are compared with theoretical predictions at next-to-next-to-leading order in perturbative quantum chromodynamics. Finally, in a precise test of lepton universality, the ratio of WW boson branching fractions is determined to be \begin{align*} \begin{split} \mathcal{B}(W \to e\nu)/\mathcal{B}(W \to \mu\nu)=1.020\pm 0.002\pm 0.019, \end{split} \end{align*} where the first uncertainty is statistical and the second is systematic.A measurement of the cross-section for WeνW \to e\nu production in pppp collisions is presented using data corresponding to an integrated luminosity of 22\,fb1^{-1} collected by the LHCb experiment at a centre-of-mass energy of s=8\sqrt{s}=8\,TeV. The electrons are required to have more than 2020\,GeV of transverse momentum and to lie between 2.00 and 4.25 in pseudorapidity. The inclusive WW production cross-sections, where the WW decays to eνe\nu, are measured to be \begin{equation*} \sigma_{W^{+} \to e^{+}\nu_{e}}=1124.4\pm 2.1\pm 21.5\pm 11.2\pm 13.0\,\mathrm{pb}, \end{equation*} \begin{equation*} \sigma_{W^{-} \to e^{-}\bar{\nu}_{e}}=\,\,\,809.0\pm 1.9\pm 18.1\pm\,\,\,7.0\pm \phantom{0}9.4\,\mathrm{pb}, \end{equation*} where the first uncertainties are statistical, the second are systematic, the third are due to the knowledge of the LHC beam energy and the fourth are due to the luminosity determination. Differential cross-sections as a function of the electron pseudorapidity are measured. The W+/WW^{+}/W^{-} cross-section ratio and production charge asymmetry are also reported. Results are compared with theoretical predictions at next-to-next-to-leading order in perturbative quantum chromodynamics. Finally, in a precise test of lepton universality, the ratio of WW boson branching fractions is determined to be \begin{equation*} \mathcal{B}(W \to e\nu)/\mathcal{B}(W \to \mu\nu)=1.020\pm 0.002\pm 0.019, \end{equation*} where the first uncertainty is statistical and the second is systematic.A measurement of the cross-section for W → eν production in pp collisions is presented using data corresponding to an integrated luminosity of 2 fb1^{−1} collected by the LHCb experiment at a centre-of-mass energy of s=8 \sqrt{s}=8 TeV. The electrons are required to have more than 20 GeV of transverse momentum and to lie between 2.00 and 4.25 in pseudorapidity. The inclusive W production cross-sections, where the W decays to eν, are measured to be σW+e+νe=1124.4±2.1±21.5±11.2±13.0pb, {\sigma}_{W^{+}\to {e}^{+}{\nu}_e}=1124.4\pm 2.1\pm 21.5\pm 11.2\pm 13.0\kern0.5em \mathrm{p}\mathrm{b}, σWeνe=809.0±1.9±18.1±7.0±9.4pb, {\sigma}_{W^{-}\to {e}^{-}{\overline{\nu}}_e}=809.0\pm 1.9\pm 18.1\pm \kern0.5em 7.0\pm \kern0.5em 9.4\,\mathrm{p}\mathrm{b}, where the first uncertainties are statistical, the second are systematic, the third are due to the knowledge of the LHC beam energy and the fourth are due to the luminosity determination

    Measurements of prompt charm production cross-sections in pp collisions at s=5 \sqrt{s}=5 TeV

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    Production cross-sections of prompt charm mesons are measured using data from pppp collisions at the LHC at a centre-of-mass energy of 55\,TeV. The data sample corresponds to an integrated luminosity of 8.60±0.338.60\pm0.33\,pb1^{-1} collected by the LHCb experiment. The production cross-sections of D0D^0, D+D^+, Ds+D_s^+, and D+D^{*+} mesons are measured in bins of charm meson transverse momentum, pTp_{\text{T}}, and rapidity, yy. They cover the rapidity range 2.0<y<4.52.0 < y < 4.5 and transverse momentum ranges 0<pT<10GeV/c0 < p_{\text{T}} < 10\, \text{GeV}/c for D0D^0 and D+D^+ and 1<pT<10GeV/c1 < p_{\text{T}} < 10\, \text{GeV}/c for Ds+D_s^+ and D+D^{*+} mesons. The inclusive cross-sections for the four mesons, including charge-conjugate states, within the range of 1<pT<8GeV/c1 < p_{\text{T}} < 8\, \text{GeV}/c are determined to be \begin{equation*} \sigma(pp\rightarrow D^0 X) = 1190 \pm 3 \pm 64\,\mu\text{b} \end{equation*} \begin{equation*} \sigma(pp\rightarrow D^+ X) = 456 \pm 3 \pm 34\,\mu\text{b} \end{equation*} \begin{equation*} \sigma(pp\rightarrow D_s^+ X) = 195 \pm 4 \pm 19\,\mu\text{b} \end{equation*} \begin{equation*} \sigma(pp\rightarrow D^{*+} X)= 467 \pm 6 \pm 40\,\mu\text{b} \end{equation*} where the uncertainties are statistical and systematic, respectively.Production cross-sections of prompt charm mesons are measured using data from pp collisions at the LHC at a centre-of-mass energy of 5 TeV. The data sample corresponds to an integrated luminosity of 8.60 ± 0.33 pb1^{−1} collected by the LHCb experiment. The production cross-sections of D0^{0}, D+^{+}, Ds+_{s}^{+} , and D+^{∗+} mesons are measured in bins of charm meson transverse momentum, pT_{T}, and rapidity, y. They cover the rapidity range 2.0 < y < 4.5 and transverse momentum ranges 0 < pT_{T} < 10 GeV/c for D0^{0} and D+^{+} and 1 < pT_{T} < 10 GeV/c for Ds+_{s}^{+} and D+^{∗+} mesons. The inclusive cross-sections for the four mesons, including charge-conjugate states, within the range of 1 < pT_{T} < 8 GeV/c are determined to be σ(ppD0X)=1004±3±54μb,σ(ppD+X)=402±2±30μb,σ(ppDs+X)=170±4±16μb,σ(ppD+X)=421±5±36μb, \begin{array}{l}\sigma \left( pp\to {D}^0X\right)=1004\pm 3\pm 54\mu \mathrm{b},\\ {}\sigma \left( pp\to {D}^{+}X\right)=402\pm 2\pm 30\mu \mathrm{b},\\ {}\sigma \left( pp\to {D}_s^{+}X\right)=170\pm 4\pm 16\mu \mathrm{b},\\ {}\sigma \left( pp\to {D}^{\ast +}X\right)=421\pm 5\pm 36\mu \mathrm{b},\end{array} where the uncertainties are statistical and systematic, respectively.Production cross-sections of prompt charm mesons are measured using data from pppp collisions at the LHC at a centre-of-mass energy of 55\,TeV. The data sample corresponds to an integrated luminosity of 8.60±0.338.60\pm0.33\,pb1^{-1} collected by the LHCb experiment. The production cross-sections of D0D^0, D+D^+, Ds+D_s^+, and D+D^{*+} mesons are measured in bins of charm meson transverse momentum, pTp_{\text{T}}, and rapidity, yy. They cover the rapidity range 2.0<y<4.52.0<y<4.5 and transverse momentum ranges 0<pT<10GeV/c0 < p_{\text{T}} < 10\, \text{GeV}/c for D0D^0 and D+D^+ and 1<pT<10GeV/c1 < p_{\text{T}} < 10\, \text{GeV}/c for Ds+D_s^+ and D+D^{*+} mesons. The inclusive cross-sections for the four mesons, including charge-conjugate states, within the range of 1<pT<8GeV/c1 < p_{\text{T}} < 8\, \text{GeV}/c are determined to be \sigma(pp\rightarrow D^0 X) = 1004 \pm 3 \pm 54\,\mu\text{b} \sigma(pp\rightarrow D^+ X) = 402 \pm 2 \pm 30\,\mu\text{b} \sigma(pp\rightarrow D_s^+ X) = 170 \pm 4 \pm 16\,\mu\text{b} \sigma(pp\rightarrow D^{*+} X)= 421 \pm 5 \pm 36\,\mu\text{b} where the uncertainties are statistical and systematic, respectively
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