0000000000447220

AUTHOR

E. Picca

showing 4 related works from this author

B-physics computations from Nf=2 tmQCD

2013

We present an accurate lattice QCD computation of the b-quark mass, the B and Bs decay constants, the B-mixing bag-parameters for the full four-fermion operator basis, as well as estimates for \xi and f_{Bq}\sqrt{B_q} extrapolated to the continuum limit and the physical pion mass. We have used Nf = 2 dynamical quark gauge configurations at four values of the lattice spacing generated by ETMC. Extrapolation in the heavy quark mass from the charm to the bottom quark region has been carried out using ratios of physical quantities computed at nearby quark masses, having an exactly known infinite mass limit.

QuarkTop quarkParticle physicsHigh Energy Physics::LatticeNuclear TheoryLattice field theoryFOS: Physical sciencesDown quark01 natural sciencesBottom quarkB physicsNuclear physicsHigh Energy Physics - LatticePion0103 physical sciences010303 astronomy & astrophysicsPhysics010308 nuclear & particles physicslattice gauge theoriesHigh Energy Physics - Lattice (hep-lat)High Energy Physics::PhenomenologyParticle Physics - LatticeLattice QCDSettore FIS/02 - Fisica Teorica Modelli e Metodi MatematiciB physics; lattice gauge theoriesUp quarkHigh Energy Physics::ExperimentPoS(LATTICE 2013)382
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Up, down, strange and charm quark masses withNf=2+1+1twisted mass lattice QCD

2014

Abstract We present a lattice QCD calculation of the up, down, strange and charm quark masses performed using the gauge configurations produced by the European Twisted Mass Collaboration with N f = 2 + 1 + 1 dynamical quarks, which include in the sea, besides two light mass degenerate quarks, also the strange and charm quarks with masses close to their physical values. The simulations are based on a unitary setup for the two light quarks and on a mixed action approach for the strange and charm quarks. The analysis uses data at three values of the lattice spacing and pion masses in the range 210 – 450 MeV , allowing for accurate continuum limit and controlled chiral extrapolation. The quark …

QuarkPhysicsQuantum chromodynamicsNuclear and High Energy PhysicsStrange quarkParticle physicsHigh Energy Physics::LatticeHigh Energy Physics::PhenomenologyNuclear TheoryLattice QCD7. Clean energySigma baryonCharm quarkNuclear physicsPionUp quarkHigh Energy Physics::ExperimentNuclear ExperimentNuclear Physics B
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B-physics from Nf=2 tmQCD: the Standard Model and beyond

2013

Carrasco, Nuria et al.

QuarkParticle physicsNuclear and High Energy PhysicsHigh Energy Physics::LatticeNuclear TheoryFOS: Physical sciencesbottom quark mass01 natural sciencesBottom quarkStandard ModelLattice constantPionHigh Energy Physics - Phenomenology (hep-ph)High Energy Physics - Lattice0103 physical sciencesContinuum (set theory)010306 general physicsNuclear ExperimentPhysicsUnitarity[PHYS.HLAT]Physics [physics]/High Energy Physics - Lattice [hep-lat]010308 nuclear & particles physicsHigh Energy Physics - Lattice (hep-lat)High Energy Physics::PhenomenologyFísicaParticle Physics - LatticeLattice QCDB-physicsSM and beyondSettore FIS/02 - Fisica Teorica Modelli e Metodi MatematiciHigh Energy Physics - PhenomenologyB-physics; bottom quark mass; B-meson mixing; SM and beyond[PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph]B-meson mixingHigh Energy Physics::Experiment
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Up, down, strange and charm quark masses with N-f=2+1+1 twisted mass lattice QCD

2014

We present a lattice QCD calculation of the up, down, strange and charm quark masses performed using the gauge configurations produced by the European Twisted Mass Collaboration with N-f = 2 + 1 + 1 dynamical quarks, which include in the sea, besides two light mass degenerate quarks, also the strange and charm quarks with masses close to their physical values. The simulations are based on a unitary setup for the two light quarks and on a mixed action approach for the strange and charm quarks. The analysis uses data at three values of the lattice spacing and pion masses in the range 210-450 MeV, allowing for accurate continuum limit and controlled chiral extrapolation. The quark mass renorma…

RENORMALIZATION-GROUPLOOPSHigh Energy Physics::LatticeNuclear TheoryHigh Energy Physics::PhenomenologyMESON MASSESFísicaHigh Energy Physics::ExperimentFIELDNuclear Experiment
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