Search Results - "Hekhorn, Felix"

Can MS¯ parton distributions be negative? by Candido, Alessandro, Forte, Stefano, Hekhorn, Felix

“…A bstract It is common lore that Parton Distribution Functions (PDFs) in the MS ¯ factorization scheme can become negative beyond leading order due to the…”
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EKO: evolution kernel operators by Candido, Alessandro, Hekhorn, Felix, Magni, Giacomo

“…We present a new QCD evolution library for unpolarized parton distribution functions: EKO. The program solves DGLAP equations up to next-to-next-to-leading…”
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An FONLL prescription with coexisting flavor number PDFs by Barontini, Andrea, Candido, Alessandro, Hekhorn, Felix, Magni, Giacomo, Stegeman, Roy

“…A bstract We present a new prescription to account for heavy quark mass effects in the determination of parton distribution functions (PDFs) based on the FONLL…”
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Yadism: yet another deep-inelastic scattering module by Candido, Alessandro, Hekhorn, Felix, Magni, Giacomo, Rabemananjara, Tanjona R., Stegeman, Roy

“…We present yadism, a library for the evaluation of both polarized and unpolarized deep-inelastic scattering (DIS) structure functions and cross sections up to…”
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Parton distributions and new physics searches: the Drell–Yan forward–backward asymmetry as a case study by Ball, Richard D., Candido, Alessandro, Forte, Stefano, Hekhorn, Felix, Nocera, Emanuele R., Rojo, Juan, Schwan, Christopher

“…We discuss the sensitivity of theoretical predictions of observables used in searches for new physics to parton distributions (PDFs) at large momentum fraction…”
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Heavy quarks in polarised deep-inelastic scattering at the electron-ion collider by Hekhorn, Felix, Magni, Giacomo, Nocera, Emanuele R., Rabemananjara, Tanjona R., Rojo, Juan, Schaus, Adrianne, Stegeman, Roy

“…We extend the FONLL general-mass variable-flavour-number scheme to the case of longitudinally polarised DIS structure functions, accounting for perturbative…”
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Photons in the proton: implications for the LHC by Ball, Richard D., Barontini, Andrea, Candido, Alessandro, Carrazza, Stefano, Cruz-Martinez, Juan, Del Debbio, Luigi, Forte, Stefano, Giani, Tommaso, Hekhorn, Felix, Kassabov, Zahari, Laurenti, Niccolò, Magni, Giacomo, Nocera, Emanuele R., Rabemananjara, Tanjona R., Rojo, Juan, Schwan, Christopher, Stegeman, Roy, Ubiali, Maria

“…We construct a set of parton distribution functions (PDFs), based on the recent NNPDF4.0 PDF set, that also include a photon PDF. The photon PDF is constructed…”
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Determination of the theory uncertainties from missing higher orders on NNLO parton distributions with percent accuracy by Ball, Richard D., Barontini, Andrea, Candido, Alessandro, Carrazza, Stefano, Cruz-Martinez, Juan, Del Debbio, Luigi, Forte, Stefano, Giani, Tommaso, Hekhorn, Felix, Kassabov, Zahari, Laurenti, Niccolò, Magni, Giacomo, Nocera, Emanuele R., Rabemananjara, Tanjona R., Rojo, Juan, Schwan, Christopher, Stegeman, Roy, Ubiali, Maria

“…We include uncertainties due to missing higher order corrections to QCD computations (MHOU) used in the determination of parton distributions (PDFs) in the…”
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Can $\overline{MS}$ parton distributions be negative? by Candido, Alessandro, Forte, Stefano, Hekhorn, Felix

“…We review our recent paper, where we proved Parton distributions functions (PDFs) to be positive at NLO in the \overline{MS} M S ¯ factorization scheme. We…”
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On the positivity of MS¯ parton distributions by Candido, Alessandro, Forte, Stefano, Giani, Tommaso, Hekhorn, Felix

“…We revisit our argument that shows that parton distribution functions (PDFs) in the MS ¯ scheme are non-negative in the perturbative region, with the dual…”
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On the positivity of $$\overline{\textrm{MS}}$$ parton distributions by Candido, Alessandro, Forte, Stefano, Giani, Tommaso, Hekhorn, Felix

“…Abstract We revisit our argument that shows that parton distribution functions (PDFs) in the $$\overline{\textrm{MS}}$$ MS ¯ scheme are non-negative in the…”
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Evidence for intrinsic charm quarks in the proton by Ball, Richard D., Candido, Alessandro, Cruz-Martinez, Juan, Forte, Stefano, Giani, Tommaso, Hekhorn, Felix, Kudashkin, Kirill, Magni, Giacomo, Rojo, Juan

“…The theory of the strong force, quantum chromodynamics, describes the proton in terms of quarks and gluons. The proton is a state of two up quarks and one down…”
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Can $$ \overline{\mathrm{MS}} $$ parton distributions be negative? by Candido, Alessandro, Forte, Stefano, Hekhorn, Felix

“…A bstract It is common lore that Parton Distribution Functions (PDFs) in the $$ \overline{\mathrm{MS}} $$ MS ¯ factorization scheme can become negative beyond…”
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Pineline: Industrialization of high-energy theory predictions by Barontini, Andrea, Candido, Alessandro, Cruz-Martinez, Juan M., Hekhorn, Felix, Schwan, Christopher

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On the positivity of $$\overline{\textrm{MS}}$$ MS ¯ parton distributions by Alessandro Candido, Stefano Forte, Tommaso Giani, Felix Hekhorn

“…Abstract We revisit our argument that shows that parton distribution functions (PDFs) in the $$\overline{\textrm{MS}}$$ MS ¯ scheme are non-negative in the…”
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Towards NNPDFpol2.0 by Hekhorn, Felix

“…We review the recent efforts in the NNPDF Collaboration towards a new global extraction of polarized parton distributions functions (pPDF). Polarized PDFs are…”
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On the positivity of MSbar distributions by Hekhorn, Felix

“…We discuss the positivity of parton distribution functions using the common $\overline{MS}$ factorization scheme. We find that in the perturbative regime…”
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The path to N3LO parton distributions by Ball, Richard D., Barontini, Andrea, Candido, Alessandro, Carrazza, Stefano, Cruz-Martinez, Juan, Del Debbio, Luigi, Forte, Stefano, Giani, Tommaso, Hekhorn, Felix, Kassabov, Zahari, Laurenti, Niccolò, Magni, Giacomo, Nocera, Emanuele R., Rabemananjara, Tanjona R., Rojo, Juan, Schwan, Christopher, Stegeman, Roy, Ubiali, Maria

“…We extend the existing leading (LO), next-to-leading (NLO), and next-to-next-to-leading order (NNLO) NNPDF4.0 sets of parton distribution functions (PDFs) to…”
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The path to $$\hbox {N}^3\hbox {LO}$$ parton distributions by Ball, Richard D., Barontini, Andrea, Candido, Alessandro, Carrazza, Stefano, Cruz-Martinez, Juan, Del Debbio, Luigi, Forte, Stefano, Giani, Tommaso, Hekhorn, Felix, Kassabov, Zahari, Laurenti, Niccolò, Magni, Giacomo, Nocera, Emanuele R., Rabemananjara, Tanjona R., Rojo, Juan, Schwan, Christopher, Stegeman, Roy, Ubiali, Maria

“…Abstract We extend the existing leading (LO), next-to-leading (NLO), and next-to-next-to-leading order (NNLO) NNPDF4.0 sets of parton distribution functions…”
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DGLAP evolution of parton distributions at approximate N$^3$LO by Hekhorn, Felix, Magni, Giacomo

“…We present recent progress towards a global determination of parton distribution functions (PDFs) at approximate N$^3$LO (aN$^3$LO) accuracy within the NNPDF…”
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