SCOAP3 Repository 26 records found  1 - 10nextendSearch took 0.02 seconds. 
1. Automated solution of first order factorizable systems of differential equations in one variable / Ablinger, J. ; Blümlein, J. ; Marquard, P. ; Rana, N. ; et al
We present an algorithm which allows to solve analytically linear systems of differential equations which factorize to first order. [...]
Published in Nuclear Physics B (2018) 10.1016/j.nuclphysb.2018.12.010
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2. NLO PDFs from the ABMP16 fit / Alekhin, S. ; Blümlein, J. ; Moch, S.
We perform a global fit of parton distribution functions (PDFs) together with the strong coupling constant αs and the quark masses mc , mb and mt at next-to-leading order (NLO) in QCD. [...]
Published in EPJC 78 (2018) 477 10.1140/epjc/s10052-018-5947-1
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3. Heavy quark form factors at three loops in the planar limit / Ablinger, J. ; Blümlein, J. ; Marquard, P. ; Rana, N. ; et al
We compute the color-planar and complete light quark non-singlet contributions to the heavy quark form factors in the case of the axialvector, scalar and pseudoscalar currents at three loops in perturbative QCD. [...]
Published in Physics letters B (2018) 10.1016/j.physletb.2018.05.077
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4. Heavy quark form factors at two loops / Ablinger, J. ; Behring, A. ; Blümlein, J. ; Falcioni, G. ; et al
We compute the two-loop QCD corrections to the heavy quark form factors in the case of the vector, axial-vector, scalar and pseudoscalar currents up to second order in the dimensional parameter ϵ=(4D)/2. [...]
Published in Physical Review D 97 (2018) 10.1103/PhysRevD.97.094022 arXiv:1712.09889
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5. The variable flavor number scheme at next-to-leading order / Blümlein, J. ; De Freitas, A. ; Schneider, C. ; Schönwald, K.
We present the matching relations of the variable flavor number scheme at next-to-leading order, which are of importance to define heavy quark partonic distributions for the use at high energy colliders such as Tevatron and the LHC. [...]
Published in Physics letters B (2018) 10.1016/j.physletb.2018.05.054
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6. The two-mass contribution to the three-loop gluonic operator matrix element Agg,Q(3) / Ablinger, J. ; Blümlein, J. ; De Freitas, A. ; Goedicke, A. ; et al
We calculate the two-mass QCD contributions to the massive operator matrix element Agg,Q at O(αs3) in analytic form in Mellin N - and z -space, maintaining the complete dependence on the heavy quark mass ratio. [...]
Published in Nuclear Physics B (2018) 10.1016/j.nuclphysb.2018.04.023
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7. The two-mass contribution to the three-loop pure singlet operator matrix element / Ablinger, J. ; Blümlein, J. ; De Freitas, A. ; Schneider, C. ; et al
We present the two-mass QCD contributions to the pure singlet operator matrix element at three loop order in x -space. [...]
Published in Nuclear Physics B (2017) 10.1016/j.nuclphysb.2017.12.018
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8. Strange sea determination from collider data / Alekhin, S. ; Blümlein, J. ; Moch, S.
We consider determinations of the strange sea in the nucleon based on QCD analyses of data collected at the LHC with focus on the recent high-statistics ATLAS measurement of the W± - and Z -boson production. [...]
Published in Physics letters B (2017) 10.1016/j.physletb.2017.12.024
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9. Running of the charm-quark mass from HERA deep-inelastic scattering data / Gizhko, A. ; Geiser, A. ; Moch, S. ; Abt, I. ; et al
Combined HERA data on charm production in deep-inelastic scattering have previously been used to determine the charm-quark running mass mc(mc) in the MS‾ renormalisation scheme. [...]
Published in Physics letters B (2017) 10.1016/j.physletb.2017.11.002
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10. The three-loop splitting functions Pqg(2) and Pgg(2,NF) / Ablinger, J. ; Behring, A. ; Blümlein, J. ; De Freitas, A. ; et al
We calculate the unpolarized twist-2 three-loop splitting functions Pqg(2)(x) and Pgg(2,NF)(x) and the associated anomalous dimensions using massive three-loop operator matrix elements. [...]
Published in Nuclear Physics B (2017) 10.1016/j.nuclphysb.2017.06.004
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6 Blümlein, Johannes
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