0000000000199286

AUTHOR

G. Kramer

showing 5 related works from this author

$\Lambda_b^0$-baryon production in pp collisions in the general-mass variable-flavour-number scheme and comparison with CMS and LHCb data

2018

We calculate the next-to-leading-order cross section for the inclusive production of $\Lambda_b$ baryons in pp collisions in the general-mass variable-flavor-number scheme. We use realistic evolved non-perturbative fragmentation functions obtained from fits to B-meson production in $e^+ e^-$ annihilation and compare our results for transverse-momentum and rapidity distributions with recent experimental data from the CMS and the LHCb collaborations at the CERN LHC. We find satisfactory agreement in general, with some indication for the need to modify the available fragmentation functions at larger values of the scale variable.

PhysicsNuclear and High Energy PhysicsParticle physicsAnnihilationLarge Hadron Collider010308 nuclear & particles physicsPhysics::Instrumentation and DetectorsFlavourHigh Energy Physics::PhenomenologyAstronomy and AstrophysicsLambda01 natural sciencesBaryonHigh Energy Physics - Phenomenology0103 physical sciencesTransverse momentumRapidityHigh Energy Physics::Experiment010306 general physicsNuclear ExperimentInstrumentation
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Heavy flavour production at the LHC: Theoretical Aspects

2008

CERN-DESY workshop on "HERA and the LHC" DESY-PROC-2009-02; ISBN 978-3-935702-32-4; ISSN 1435-8077; International audience; A proper inclusion of heavy quark mass effects in Parton Distribution Function fits has proved crucial. We present a review these effects in DIS and their impact on global analyses and lay out all elements of a properly defined general mass variable flavor number scheme (GM VFNS) that are shared by all modern formulations of the problem. We also report about progress in a number of theoretical problems related to exclusive measurements of heavy flavors. These topics include fragmentation functions for charmed mesons including finite mass effects, fragmentation function…

High Energy Physics::Lattice[PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph]High Energy Physics::PhenomenologyHigh Energy Physics::ExperimentNuclear Experiment
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$\Lambda_c^{\pm}$ production in pp collisions with a new fragmentation function

2020

Physical review / D D 101(11), 114021 (2020). doi:10.1103/PhysRevD.101.114021

p p: scatteringLambda/c+: productiondata analysis methodPhysics::Instrumentation and Detectors14.40.NdBELLEannihilation [electron positron]electron positron: annihilationfragmentation [charm]530fragmentation functionquarkALICEfragmentationscattering [p p]ddc:530charm: fragmentationStrong InteractionsNuclear Experimentproduction [Lambda/c+]OPALCMSviolation [universality]High Energy Physics::PhenomenologytensionLHC-B12.39.StHigh Energy Physics - Phenomenology12.38.BxCERN LHC Coll[PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph]High Energy Physics::Experimentuniversality: violation13.85.Ni
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Overview of the JET results with the ITER-like wall

2013

Following the completion in May 2011 of the shutdown for the installation of the beryllium wall and the tungsten divertor, the first set of JET campaigns have addressed the investigation of the retention properties and the development of operational scenarios with the new plasma-facing materials. The large reduction in the carbon content (more than a factor ten) led to a much lower Zeff (1.2-1.4) during L- and H-mode plasmas, and radiation during the burn-through phase of the plasma initiation with the consequence that breakdown failures are almost absent. Gas balance experiments have shown that the fuel retention rate with the new wall is substantially reduced with respect to the C wall. T…

Nuclear and High Energy PhysicsMaterials scienceREGIMENuclear engineeringchemistry.chemical_element-Condensed Matter PhysicEffective radiated powerTungstenNuclear and High Energy Physics; Condensed Matter PhysicsPedestalPLASMA-FACING COMPONENTSTOKAMAK PLASMASJet (fluid)TUNGSTENDivertorperfomancePlasmaPERFORMANCECondensed Matter PhysicsSettore FIS/07 - Fisica Applicata(Beni Culturali Ambientali Biol.e Medicin)chemistryBeta (plasma physics)DIVERTORBerylliumAtomic physics
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Study of heavy meson production in p-Pb collisions at $\sqrt{S}$=5.02 TeV in the general-mass variable-flavour-number scheme

2017

Nuclear physics / B 925, 415 - 430 (2017). doi:10.1016/j.nuclphysb.2017.10.016

CMSnucleusFOS: Physical sciencesinitial-state interaction530High Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)CERN LHC CollALICEproduction [bottom]heavy [meson]ddc:530High Energy Physics::Experimentcross section [p p]Nuclear Experimentnumerical calculationscharmproduction [meson]1 [higher-order]
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