37 research outputs found

    A Roadmap for HEP Software and Computing R&D for the 2020s

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    Particle physics has an ambitious and broad experimental programme for the coming decades. This programme requires large investments in detector hardware, either to build new facilities and experiments, or to upgrade existing ones. Similarly, it requires commensurate investment in the R&D of software to acquire, manage, process, and analyse the shear amounts of data to be recorded. In planning for the HL-LHC in particular, it is critical that all of the collaborating stakeholders agree on the software goals and priorities, and that the efforts complement each other. In this spirit, this white paper describes the R&D activities required to prepare for this software upgrade.Peer reviewe

    Alignment of the CMS muon system with cosmic-ray and beam-halo muons

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    This is the Pre-print version of the Article. The official published version of the Paper can be accessed from the link below - Copyright @ 2010 IOPThe CMS muon system has been aligned using cosmic-ray muons collected in 2008 and beam-halo muons from the 2008 LHC circulating beam tests. After alignment, the resolution of the most sensitive coordinate is 80 microns for the relative positions of superlayers in the same barrel chamber and 270 microns for the relative positions of endcap chambers in the same ring structure. The resolution on the position of the central barrel chambers relative to the tracker is comprised between two extreme estimates, 200 and 700 microns, provided by two complementary studies. With minor modifications, the alignment procedures can be applied using muons from LHC collisions, leading to additional significant improvements.This work is supported by FMSR (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, and FAPESP (Brazil); MES (Bulgaria); CERN; CAS, MoST, and NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); RPF (Cyprus); Academy of Sciences and NICPB (Estonia); Academy of Finland, ME, and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); GSRT (Greece); OTKA and NKTH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF (Korea); LAS (Lithuania); CINVESTAV, CONACYT, SEP, and UASLP-FAI (Mexico); PAEC (Pakistan); SCSR (Poland); FCT (Portugal); JINR(Armenia, Belarus, Georgia, Ukraine, Uzbekistan); MST and MAE (Russia); MSTDS (Serbia); MICINN and CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); TUBITAK and TAEK (Turkey); STFC (United Kingdom); DOE and NSF (USA)

    Alignment of the CMS muon system with cosmic-ray and beam-halo muons

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    This is the Pre-print version of the Article. The official published version of the Paper can be accessed from the link below - Copyright @ 2010 IOPThe CMS muon system has been aligned using cosmic-ray muons collected in 2008 and beam-halo muons from the 2008 LHC circulating beam tests. After alignment, the resolution of the most sensitive coordinate is 80 microns for the relative positions of superlayers in the same barrel chamber and 270 microns for the relative positions of endcap chambers in the same ring structure. The resolution on the position of the central barrel chambers relative to the tracker is comprised between two extreme estimates, 200 and 700 microns, provided by two complementary studies. With minor modifications, the alignment procedures can be applied using muons from LHC collisions, leading to additional significant improvements.This work is supported by FMSR (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, and FAPESP (Brazil); MES (Bulgaria); CERN; CAS, MoST, and NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); RPF (Cyprus); Academy of Sciences and NICPB (Estonia); Academy of Finland, ME, and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); GSRT (Greece); OTKA and NKTH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF (Korea); LAS (Lithuania); CINVESTAV, CONACYT, SEP, and UASLP-FAI (Mexico); PAEC (Pakistan); SCSR (Poland); FCT (Portugal); JINR(Armenia, Belarus, Georgia, Ukraine, Uzbekistan); MST and MAE (Russia); MSTDS (Serbia); MICINN and CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); TUBITAK and TAEK (Turkey); STFC (United Kingdom); DOE and NSF (USA)

    Scavi archeologici e musei. Bologna tra coscienza civica e identità nazionale

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    Bologna e la sua élite intellettuale ebbero un ruolo di primo piano nello sviluppo dell’idea di unità nazionale a partire dal 1860. L’Istituzione delle Deputazioni di storia patria mirava alla riscoperta dell’unità storica delle diverse realtà regionali italiane. Le novità degli scavi archeologici bolognesi, i Congressi internazionali di antropologia e archeologia preistoriche, l’inaugurazione del Museo civico di Bologna e di altri musei della regione, la riflessione storica di personalità quali Gozzadini, Zannoni, Brizio, Chierici, Pigorini e Ghirardini portarono l’accento sulle origini italiche, alla ricerca di una sorta di unità protostorica dell’Italia nelle diversità delle culture. Nella sistemazione di questo pensiero ebbe un ruolo basilare l’Università e in particolare E. Brizio.Morigi Govi Cristiana, Sassatelli Giuseppe, Vitali Daniele. Scavi archeologici e musei. Bologna tra coscienza civica e identità nazionale. In: Mélanges de l'École française de Rome. Italie et Méditerranée, tome 113, n°2. 2001. Antiquités, archéologie et construction nationale au XIXe siècle. Journées d’études, Rome 29-30 avril 1999 et Ravello 7-8 avril 2000. pp. 665-678

    Il sistema agro-alimentare dell’Emilia-Romagna, Rapporto 2014

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    Il Rapporto 2014 sul Sistema Agroalimentare dell'Emilia-Romagna rappresenta un importante contributo alla conoscenza di un settore fondamentale dell'economia regionale, un utile strumento per gli operatori e una guida per le politiche degli enti locali. Il Rapporto si apre con due capitoli che descrivono da un lato, lo scenario internazionale e, dall'altro le politiche comunitarie e nazionali, per il settore agroalimentare, che modificano lo scenario nel quale gli operatori saranno chiamati a muoversi dal 2014 al 2020. I principali cambiamenti congiunturali del sistema agroalimentare regionale occupano la parte central del Rapporto, con Quattro capitol dedicati all'agricoltura. Successivamente vengono affrontati gli altri aspetti rilevanti del sistema agro-alimentare regionale partendo dall'industria alimentare, con le dinamiche congiunturali e alcuni approfondimenti strutturali dell'occupazione

    A Roadmap for HEP Software and Computing R&D for the 2020s

    No full text
    Particle physics has an ambitious and broad experimental programme for the coming decades. This programme requires large investments in detector hardware, either to build new facilities and experiments, or to upgrade existing ones. Similarly, it requires commensurate investment in the R&D of software to acquire, manage, process, and analyse the shear amounts of data to be recorded. In planning for the HL-LHC in particular, it is critical that all of the collaborating stakeholders agree on the software goals and priorities, and that the efforts complement each other. In this spirit, this white paper describes the R&D activities required to prepare for this software upgrade

    Measurement of simplified template cross sections of the Higgs boson produced in association with W or Z bosons in the H bb \to \mathrm{b}\overline{\mathrm{b}} decay channel in proton-proton collisions at s= \sqrt{s}= 13 TeV

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    Differential cross sections are measured for the standard model Higgs boson produced in association with vector bosons (W, Z) and decaying to a pair of b quarks. Measurements are performed within the framework of the simplified template cross sections. The analysis relies on the leptonic decays of the W and Z bosons, resulting in final states with 0, 1, or 2 electrons or muons. The Higgs boson candidates are either reconstructed from pairs of resolved b-tagged jets, or from single large distance parameter jets containing the particles arising from two b quarks. Proton-proton collision data at s= \sqrt{s}= 13 TeV, collected by the CMS experiment in 2016--2018 and corresponding to a total integrated luminosity of 138 fb1 ^{-1} , are analyzed. The inclusive signal strength, defined as the product of the observed production cross section and branching fraction relative to the standard model expectation, combining all analysis categories, is found to be μ= \mu= 1.15 0.20+0.22 ^{+0.22}_{-0.20} . This corresponds to an observed (expected) significance of 6.3 (5.6) standard deviations.Differential cross sections are measured for the standard model Higgs boson produced in association with vector bosons (W, Z) and decaying to a pair of b quarks. Measurements are performed within the framework of the simplified template cross sections. The analysis relies on the leptonic decays of the W and Z bosons, resulting in final states with 0, 1, or 2 electrons or muons. The Higgs boson candidates are either reconstructed from pairs of resolved b-tagged jets, or from single large distance parameter jets containing the particles arising from two b quarks. Proton-proton collision data at s\sqrt{s} = 13 TeV, collected by the CMS experiment in 2016-2018 and corresponding to a total integrated luminosity of 138 fb1^{-1}, are analyzed. The inclusive signal strength, defined as the product of the observed production cross section and branching fraction relative to the standard model expectation, combining all analysis categories, is found to be μ\mu = 1.150.20+0.22^{+0.22}_{-0.20}. This corresponds to an observed (expected) significance of 6.3 (5.6) standard deviations
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