Visiones transversales de Puerto Rico y el Caribe

Con autorización de la editorial para este libro. La edición del libro estuvo a cargo de Beatriz Cruz Sotomayor y Félix R. Huertas González.Visiones transversales de Puerto Rico y el Caribe es producto de un proyecto internacional de investigación en el que han venido participando, por los pasados años, un grupo de historiadores y especialistas de diversas disciplinas en el área de los estudios caribeños. Como lo sugiere su título, el libro apuesta a la transversalidad como enfoque que permite explorar, desde múltiples perspectivas, la diversidad que ya de por sí implica la región caribeña y, en particular, la isla de Puerto Rico. Este persigue innovar en su metodología, marcos teóricos, perspectivas críticas y en una rica variedad de campos de estudio sobre Puerto Rico en el contexto del Caribe. Desde una diversidad de análisis, los ensayos transitan también un amplio espectro temático: esclavitud, urbanismo, ambiente, identidad, cultura, diáspora, economía, arte, literatura y política, entre otros.Connected Worlds: The Caribbean, Origin of the Modern World. Este proyecto ha recibido fondos del programa de investigación e innovación Horizon 2020 de la Unión Europea en virtud del acuerdo de subvención Marie Sklodowska-Curie Nº 823846. El proyecto está dirigido por la profesora Consuelo Naranjo Orovio del Instituto de Historia-CSIC.Peer reviewe

El Caribe: Origen del mundo moderno

[EN] This book is a result of the European project titled Connected Worlds: The Caribbean, Origin of the Modern World. This project is directed by Consuelo Naranjo-Orovio from Institute of History (CSIC). The book is presented so that the educational community has the latest and necessary scientific knowledge, in a clear and accessible way, for its transmission to new generations, and contributes -through education and historical knowledge- to combat the discrimination against non-white populations in Europe, the Caribbean and Latin America. Through studies we try to promote, rescue and protect our historical memory and cultural expressions of different peoples, as well as enhance dialogue, debate and international cooperation.With this volume we want to contribute, in short, to the knowledge of the past and present of Caribbean countries and their connection with the rest of Latin America, Europe and Africa. The various themes emphasize topical issues that cannot be missing in the higher education of our societies, whose classrooms, a true reflection of society, are marked by integration, multiculturalism and coexistence between different cultures. Education therefore must contribute to the integration of human diversity and the banishment of concepts of one upmanship between populations, based on the misconception regarding the existence of races in the human species.In this book, teachers and students will find multimedia resources that expand the gathered information and various interviews with Caribbean history specialists, designed and conducted by Consuelo Naranjo Orovio and edited by Luis Centurión, from Ediciones Doce Calles publishing house team, who is also a project member: http://youtube.com/c/ConnecCaribbeanProyecto[ES] Este libro es el resultado del proyecto europeo titulado Connected Worlds: The Caribbean, Origin of the Modern World. Este proyecto está dirigido por Consuelo Naranjo-Orovio del Instituto de Historia (CSIC). El libro se presenta para que la comunidad educativa tenga el conocimiento científico más reciente y necesario, de manera clara y accesible, para su transmisión a las nuevas generaciones, y contribuye, a través de la educación y el conocimiento histórico, a combatir la discriminación contra las poblaciones no blancas en Europa, el Caribe y América Latina. A través de los estudios tratamos de promover, rescatar y proteger nuestra memoria histórica y expresiones culturales de diferentes pueblos, así como mejorar el diálogo, el debate y la cooperación internacional. Con este volumen queremos contribuir, en resumen, al conocimiento del pasado y el presente de los países del Caribe y su conexión con el resto de América Latina, Europa y África. Los diversos temas enfatizan temas de actualidad que no pueden faltar en la educación superior de nuestras sociedades, cuyas aulas, un verdadero reflejo de la sociedad, están marcadas por la integración, el multiculturalismo y la convivencia entre diferentes culturas. La educación, por lo tanto, debe contribuir a la integración de la diversidad humana y al destierro de los conceptos de un solo dominio entre las poblaciones, basado en el concepto erróneo sobre la existencia de razas en la especie humana. En este libro, maestros y estudiantes encontrarán recursos multimedia que amplían la información recopilada y varias entrevistas con especialistas en historia del Caribe, diseñadas y dirigidas por Consuelo Naranjo Orovio y editadas por Luis Centurión, del equipo de la editorial Ediciones Doce Calles, que también es miembro del proyecto: http://youtube.com/c/ConnecCaribbeanProyectoPeer reviewe

Search for high-mass exclusive diphoton production with tagged protons in proton-proton collisions at s\sqrt{s} = 13 TeV

International audienceA search is presented for high-mass exclusive diphoton production via photon-photon fusion in proton-proton collisions at $\sqrt{s}$ = 13 TeV in events where both protons survive the interaction. The analysis utilizes data corresponding to an integrated luminosity of 103 fb$^{-1}$ collected in 2016-2018 with the central CMS detector and the CMS and TOTEM precision proton spectrometer (PPS). Events that have two photons with high transverse momenta ($p_\mathrm{T}^\gamma >$ 100 GeV), back-to-back in azimuth, and with a large diphoton invariant mass ($m_{\gamma\gamma} \gt$ 350 GeV) are selected. To remove the dominant inclusive diphoton backgrounds, the kinematic properties of the protons detected in PPS are required to match those of the central diphoton system. Only events having opposite-side forward protons detected with a fractional momentum loss between 0.035 and 0.15 (0.18) for the detectors on the negative (positive) side of CMS are considered. One exclusive diphoton candidate is observed for an expected background of 1.1 events. Limits at 95% confidence level are derived for the four-photon anomalous coupling parameters $\lvert\zeta_1\rvert \lt$ 0.073 TeV$^{-4}$ and $\lvert\zeta_2\rvert \lt$ 0.15 TeV$^{-4}$, using an effective field theory. Additionally, upper limits are placed on the production of axion-like particles with coupling strength to photons $f^{-1}$ that varies from 0.03 TeV$^{-1}$ to 1 TeV$^{-1}$ over the mass range from 500 to 2000 GeV

Nonresonant central exclusive production of charged-hadron pairs in proton-proton collisions at s\sqrt{s} = 13 TeV

International audienceThe central exclusive production of charged-hadron pairs in pp collisions at a centre-of-mass energy of 13\TeV is examined, based on data collected in a special high-$\beta^*$ run of the LHC. The nonresonant continuum processes are studied with the invariant mass of the centrally produced two-pion system in the resonance-free region, $m_{\pi^+\pi^-}$$\lt$ 0.7 GeV or $m_{\pi^+\pi^-}$$\gt$ 1.8 GeV. Differential cross sections as functions of the azimuthal angle between the surviving protons, squared exchanged four-momenta, and $m_{\pi^+\pi^-}$ are measured in a wide region of scattered proton transverse momenta, between 0.2 and 0.8 GeV, and for pion rapidities $\lvert y\rvert$$\lt$ 2. A rich structure of interactions related to double-pomeron exchange is observed. A parabolic minimum in the distribution of the two-proton azimuthal angle is observed for the first time. It can be interpreted as an effect of additional pomeron exchanges between the protons from the interference between the bare and the rescattered amplitudes. After model tuning, various physical quantities are determined that are related to the pomeron cross section, proton-pomeron and meson-pomeron form factors, pomeron trajectory and intercept, and coefficients of diffractive eigenstates of the proton

Development of the CMS detector for the CERN LHC Run 3

International audienceSince the initial data taking of the CERN LHC, the CMS experiment has undergone substantial upgrades and improvements. This paper discusses the CMS detector as it is configured for the third data-taking period of the CERN LHC, Run 3, which started in 2022. The entire silicon pixel tracking detector was replaced. A new powering system for the superconducting solenoid was installed. The electronics of the hadron calorimeter was upgraded. All the muon electronic systems were upgraded, and new muon detector stations were added, including a gas electron multiplier detector. The precision proton spectrometer was upgraded. The dedicated luminosity detectors and the beam loss monitor were refurbished. Substantial improvements to the trigger, data acquisition, software, and computing systems were also implemented, including a new hybrid CPU/GPU farm for the high-level trigger

Search for high-mass exclusive diphoton production with tagged protons in proton-proton collisions at s= \sqrt{s} = 13 TeV

A search is presented for high-mass exclusive diphoton production via photon-photon fusion in proton-proton collisions at $\sqrt{s} =$ 13 TeV in events where both protons survive the interaction. The analysis utilizes data corresponding to an integrated luminosity of 103 fb$^{-1}$ collected in 2016--2018 with the central CMS detector and the CMS and TOTEM precision proton spectrometer (PPS). Events that have two photons with high transverse momenta ($p_{\mathrm{T}}^{\gamma} >$ 100 GeV), back-to-back in azimuth, and with a large diphoton invariant mass ($m_{\gamma\gamma} >$ 350 GeV) are selected. To remove the dominant inclusive diphoton backgrounds, the kinematic properties of the protons detected in PPS are required to match those of the central diphoton system. Only events having opposite-side forward protons detected with a fractional momentum loss between 0.035 and 0.15 (0.18) for the detectors on the negative (positive) side of CMS are considered. One exclusive diphoton candidate is observed for an expected background of 1.1 events. Limits at 95% confidence level are derived for the four-photon anomalous coupling parameters $|\zeta_1|$ 100 GeV), back-to-back in azimuth, and with a large diphoton invariant mass ($m_{\gamma\gamma} \gt$ 350 GeV) are selected. To remove the dominant inclusive diphoton backgrounds, the kinematic properties of the protons detected in PPS are required to match those of the central diphoton system. Only events having opposite-side forward protons detected with a fractional momentum loss between 0.035 and 0.15 (0.18) for the detectors on the negative (positive) side of CMS are considered. One exclusive diphoton candidate is observed for an expected background of 1.1 events. Limits at 95% confidence level are derived for the four-photon anomalous coupling parameters $\lvert\zeta_1\rvert \lt$ 0.073 TeV$^{-4}$ and $\lvert\zeta_2\rvert \lt$ 0.15 TeV$^{-4}$, using an effective field theory. Additionally, upper limits are placed on the production of axion-like particles with coupling strength to photons $f^{-1}$ that varies from 0.03 TeV$^{-1}$ to 1 TeV$^{-1}$ over the mass range from 500 to 2000 GeV

Search for central exclusive production of top quark pairs in proton-proton collisions at s\sqrt{s} = 13 TeV with tagged protons

International audienceA search for the central exclusive production of top quark-antiquark pairs ($\mathrm{t\bar{t}}$) is performed for the first time using proton-tagged events in proton-proton collisions at the LHC at a centre-of-mass energy of 13 TeV. The data correspond to an integrated luminosity of 29.4 fb$^{-1}$. The $\mathrm{t\bar{t}}$ decay products are reconstructed using the central CMS detector, while forward protons are measured in the CMS-TOTEM precision proton spectrometer. An observed (expected) upper bound on the production cross section of 0.59 (1.14) pb is set at 95% confidence level, for collisions of protons with fractional momentum losses between 2 and 20%

Nonresonant central exclusive production of charged-hadron pairs in proton-proton collisions at s\sqrt{s} = 13 TeV

International audienceThe central exclusive production of charged-hadron pairs in pp collisions at a centre-of-mass energy of 13\TeV is examined, based on data collected in a special high-$\beta^*$ run of the LHC. The nonresonant continuum processes are studied with the invariant mass of the centrally produced two-pion system in the resonance-free region, $m_{\pi^+\pi^-}$$\lt$ 0.7 GeV or $m_{\pi^+\pi^-}$$\gt$ 1.8 GeV. Differential cross sections as functions of the azimuthal angle between the surviving protons, squared exchanged four-momenta, and $m_{\pi^+\pi^-}$ are measured in a wide region of scattered proton transverse momenta, between 0.2 and 0.8 GeV, and for pion rapidities $\lvert y\rvert$$\lt$ 2. A rich structure of interactions related to double-pomeron exchange is observed. A parabolic minimum in the distribution of the two-proton azimuthal angle is observed for the first time. It can be interpreted as an effect of additional pomeron exchanges between the protons from the interference between the bare and the rescattered amplitudes. After model tuning, various physical quantities are determined that are related to the pomeron cross section, proton-pomeron and meson-pomeron form factors, pomeron trajectory and intercept, and coefficients of diffractive eigenstates of the proton

Nonresonant central exclusive production of charged-hadron pairs in proton-proton collisions at s\sqrt{s} = 13 TeV

International audienceThe central exclusive production of charged-hadron pairs in pp collisions at a centre-of-mass energy of 13\TeV is examined, based on data collected in a special high-$\beta^*$ run of the LHC. The nonresonant continuum processes are studied with the invariant mass of the centrally produced two-pion system in the resonance-free region, $m_{\pi^+\pi^-}$$\lt$ 0.7 GeV or $m_{\pi^+\pi^-}$$\gt$ 1.8 GeV. Differential cross sections as functions of the azimuthal angle between the surviving protons, squared exchanged four-momenta, and $m_{\pi^+\pi^-}$ are measured in a wide region of scattered proton transverse momenta, between 0.2 and 0.8 GeV, and for pion rapidities $\lvert y\rvert$$\lt$ 2. A rich structure of interactions related to double-pomeron exchange is observed. A parabolic minimum in the distribution of the two-proton azimuthal angle is observed for the first time. It can be interpreted as an effect of additional pomeron exchanges between the protons from the interference between the bare and the rescattered amplitudes. After model tuning, various physical quantities are determined that are related to the pomeron cross section, proton-pomeron and meson-pomeron form factors, pomeron trajectory and intercept, and coefficients of diffractive eigenstates of the proton