Articles with "momentum space" as a keyword



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Momentum-space resummation for transverse observables and the Higgs p⊥ at N3LL+NNLO

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Published in 2017 at "Journal of High Energy Physics"

DOI: 10.1007/jhep02(2018)108

Abstract: A bstractWe present an approach to the momentum-space resummation of global, recursively infrared and collinear safe observables that can vanish away from the Sudakov region. We focus on the hadro-production of a generic colour singlet,… read more here.

Keywords: transverse; next next; momentum space; momentum ... See more keywords
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Momentum space conformal three-point functions of conserved currents and a general spinning operator

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Published in 2019 at "Journal of High Energy Physics"

DOI: 10.1007/jhep05(2019)057

Abstract: A bstractWe construct conformal three-point functions in momentum space with a general tensor and conserved currents of spin 1 and 2. While conformal correlators in momentum space have been studied especially in the connection with… read more here.

Keywords: conserved currents; point functions; momentum space; three point ... See more keywords
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Dispersion formulas in QFTs, CFTs and holography

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Published in 2021 at "Journal of High Energy Physics"

DOI: 10.1007/jhep05(2021)098

Abstract: Abstract We study momentum space dispersion formulas in general QFTs and their applications for CFT correlation functions. We show, using two independent methods, that QFT dispersion formulas can be written in terms of causal commutators.… read more here.

Keywords: dispersion; dispersion formula; dispersion formulas; momentum space ... See more keywords
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Momentum-space threshold resummation in tW production at the LHC

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Published in 2019 at "Journal of High Energy Physics"

DOI: 10.1007/jhep06(2019)125

Abstract: A bstractWe calculate the soft-gluon corrections for tW production to all orders. The soft limit is defined in the pair invariant mass or one particle inclusive kinematic schemes. We find that at NLO the contribution… read more here.

Keywords: soft gluon; threshold resummation; space threshold; momentum space ... See more keywords
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Numerical transforms from position to momentum space via Gaussian quadrature in the complex plane

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Published in 2017 at "Computational and Theoretical Chemistry"

DOI: 10.1016/j.comptc.2017.05.003

Abstract: Abstract A method for the numerical evaluation of integrals involving Bessel functions of the first kind, via non-standard Gaussian quadrature, is appraised. This method uses specialized Gaussian quadratures based on weight functions which are modified… read more here.

Keywords: transforms position; gaussian quadrature; momentum space; space ... See more keywords
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A three-dimensional momentum-space calculation of three-body bound state in a relativistic Faddeev scheme

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Published in 2020 at "Scientific Reports"

DOI: 10.1038/s41598-020-58577-4

Abstract: In this paper, we study the relativistic effects in a three-body bound state. For this purpose, the relativistic form of the Faddeev equations is solved in momentum space as a function of the Jacobi momentum… read more here.

Keywords: three dimensional; bound state; momentum space; body bound ... See more keywords
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Weak-value amplification for Weyl-point separation in momentum space

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Published in 2018 at "New Journal of Physics"

DOI: 10.1088/1367-2630/aae2d5

Abstract: The existence of Weyl nodes in the momentum space is a hallmark of a Weyl semimetal (WSM). A WSM can be confirmed by observing its Fermi arcs with separated Weyl nodes. In this paper, we… read more here.

Keywords: weyl nodes; space; weak value; separation ... See more keywords
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Momentum space sampling of neutrinos in N-body simulations

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Published in 2019 at "Journal of Cosmology and Astroparticle Physics"

DOI: 10.1088/1475-7516/2019/03/047

Abstract: Including massive neutrinos in $N$-body simulations is a challenging task due to the large thermal velocities of the neutrinos. In particle based codes this leads to problems of shot-noise due to insufficient sampling of the… read more here.

Keywords: body simulations; momentum space; neutrino; neutrinos body ... See more keywords
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Single-atom-resolved probing of lattice gases in momentum space

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Published in 2018 at "Physical Review A"

DOI: 10.1103/physreva.97.061609

Abstract: Measuring the full distribution of individual particles is of fundamental importance to characterize many-body quantum systems through correlation functions at any order. Here we demonstrate the possibility to reconstruct the momentum-space distribution of three-dimensional interacting… read more here.

Keywords: atom resolved; momentum space; gases momentum; single atom ... See more keywords
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Nonlinearity induced topological physics in momentum space and real space

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Published in 2020 at "Physical Review B"

DOI: 10.1103/physrevb.102.115411

Abstract: Nonlinearity induced topological properties in nonlinear lattice systems are studied in both momentum space and real space. Experimentally realizable through the Kerr effect on photonic waveguide systems, our working model depicts onsite nonlinearity added to… read more here.

Keywords: space; nonlinearity; space real; physics ... See more keywords
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Spin motive force by the momentum-space Berry phase in magnetic Weyl semimetals

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Published in 2022 at "Physical Review B"

DOI: 10.1103/physrevb.107.195202

Abstract: We show that the magnetic precession of ferromagnetic moments in a noncentrosymmetric magnetic Weyl semimetal induces an electric current through a mechanism analogous to the adiabatic charge pumping. The current is a consequence of a… read more here.

Keywords: momentum space; motive force; weyl; spin motive ... See more keywords