SCOAP3 Repository 9 records found  Search took 0.29 seconds. 
1. Four-loop wave function renormalization in QCD and QED / Marquard, Peter ; Smirnov, Alexander V. ; Smirnov, Vladimir A. ; Steinhauser, Matthias
We compute the on-shell wave function renormalization constant to four-loop order in QCD and present numerical results for all coefficients of the SU(Nc) color factors. [...]
Published in Phys. Rev. D 97 (2018) 10.1103/PhysRevD.97.054032 arXiv:1801.08292
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2. Validity of Padé approximations in vacuum polarization at three- and four-loop order / Maier, Andreas ; Marquard, Peter
The heavy-quark contribution to the polarization function Π at higher perturbative orders is presently only known approximately. [...]
Published in Phys. Rev. D 97 (2018) 10.1103/PhysRevD.97.056016 arXiv:1710.03724
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3. The five-loop Beta function for a general gauge group and anomalous dimensions beyond Feynman gauge / Luthe, Thomas ; Maier, Andreas ; Marquard, Peter ; Schröder, York
We focus on a non-abelian gauge field coupled to a single (but general) representation of a family of N f fermions. [...]
Published in JHEP 1710 (2017) 166 10.1007/JHEP10(2017)166 arXiv:1709.07718
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4. Complete renormalization of QCD at five loops / Luthe, Thomas ; Maier, Andreas ; Marquard, Peter ; Schröder, York
We present new analytical five-loop Feynman-gauge results for the anomalous dimensions of ghost field and -vertex, generalizing the known values for SU(3) to a general gauge group. [...]
Published in JHEP 1703 (2017) 020 10.1007/JHEP03(2017)020 arXiv:1701.07068
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5. Five-loop quark mass and field anomalous dimensions for a general gauge group / Luthe, Thomas ; Maier, Andreas ; Marquard, Peter ; Schröder, York
We present analytical five-loop results for the quark mass and quark field anomalous dimensions, for a general gauge group and in the M S ¯ $$ \overline{\mathrm{MS}} $$ scheme. [...]
Published in JHEP 1701 (2017) 081 10.1007/JHEP01(2017)081 arXiv:1612.05512
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6. Towards the five-loop Beta function for a general gauge group / Luthe, Thomas ; Maier, Andreas ; Marquard, Peter ; Schröder, York
We present analytical results for the N f 4 and N f 3 terms of the five-loop Beta function, for a general gauge group. [...]
Published in JHEP 1607 (2016) 127 10.1007/JHEP07(2016)127 arXiv:1606.08662
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7. The three-loop cusp anomalous dimension in QCD and its supersymmetric extensions / Grozin, Andrey ; Henn, Johannes ; Korchemsky, Gregory ; Marquard, Peter
We present the details of the analytic calculation of the three-loop angle-dependent cusp anomalous dimension in QCD and its supersymmetric extensions, including the maximally supersymmetric N = 4 $$ \mathcal{N}=4 $$ super Yang-Mills theory. [...]
Published in JHEP 1601 (2016) 140 10.1007/JHEP01(2016)140 arXiv:1510.07803
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8. Hadronic contribution to the muon anomalous magnetic moment to next-to-next-to-leading order / Kurz, Alexander ; Liu, Tao ; Marquard, Peter ; Steinhauser, Matthias
We compute the next-to-next-to-leading order hadronic contribution to the muon anomalous magnetic moment originating from the photon vacuum polarization. [...]
Published in Physics letters B 734 (2014) 144-147 10.1016/j.physletb.2014.05.043
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9. Anomalous magnetic moment with heavy virtual leptons / Kurz, Alexander ; Liu, Tao ; Marquard, Peter ; Steinhauser, Matthias
We compute the contributions to the electron and muon anomalous magnetic moment induced by heavy leptons up to four-loop order. [...]
Published in Nuclear Physics B 879 (2014) 1-18 10.1016/j.nuclphysb.2013.11.018
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9 Marquard, P.
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