# ZEU-THEO

 2017-12-1211:23 [PUBDB-2017-13313] Contribution to a conference proceedings et al Heavy Flavor Wilson Coefficients in Deep-Inelastic Scattering: Recent Results QCD Evolution Workshop, QCD 2017, Meeting locationNewport News, USA , 22 May 2017 - 26 May 2017 PoS(QCDEV2017)031 (2017) 2017-12-0814:53 [PUBDB-2017-13096] Talk (non-conference) Blümlein, J. Elliptic Integrals in Higher Loop Calculations: from IBP's to eta-eighted elliptic polylogarithms KMPB workshop, Meeting locationDESY Zeuthen, 23 Oct 2017 - 23 Oct 2017 2017-11-3015:40 [PUBDB-2017-12620] Contribution to a conference proceedings Jegerlehner, F. $\alpha_{QED}(M_{Z})$ and future prospects with low energy $e^{+}e^−$collider data FCC-ee Mini-Workshop: "Physics Behind Precision", FCC-ee, Meeting locationGeneva, Switzerland, 2 Feb 2016 - 3 Feb 2016 session 1, 3.2.2016 (2017) [10.3204/PUBDB-2017-12620]   OpenAccess: PDF PDF (PDFA); 2017-11-3015:27 [PUBDB-2017-12619] Contribution to a conference proceedings et al The massive 3-loop operator matrix elements with two different masses and the generalized VFNS. 13th International Symposium on Radiative Corrections (Applications of Quantum Field Theory to Phenomenology), Meeting locationSt. Gilgen, Austria, 25 Sep 2017 - 29 Sep 2017 PoS(RADCOR2017)071 (2017) 2017-11-2817:00 [PUBDB-2017-12479] Journal Article/Contribution to a conference proceedings et al Heavy quark form factors at two loops in perturbative QCD Matter To The Deepest: Recent Developments In Physics Of Fundamental Interactions, XLI International Conference of Theoretical Physics, Meeting locationPodlesice, Poland, 3 Sep 2017 - 8 Sep 2017   Restricted: PDF PDF (PDFA); 2017-11-2816:42 [PUBDB-2017-12477] Report/Journal Article et al Four-loop critical exponents for the Gross-Neveu-Yukawa models [arXiv:1709.05057] Physical review / D 96(9), 096010 (2017) [10.1103/PhysRevD.96.096010]   We study the chiral Ising, the chiral XY, and the chiral Heisenberg models at four-loop order with the perturbative renormalization group in 4−ε dimensions and compute critical exponents for the Gross-Neveu-Yukawa fixed points to order O(ε$^4$). Further, we provide Padé estimates for the correlation length exponent, the boson and fermion anomalous dimension, as well as the leading correction to scaling exponent in 2+1 dimensions [...] OpenAccess: PDF PDF (PDFA); 2017-11-2814:10 [PUBDB-2017-12460] Preprint/Report Uwer, P. Kira - A Feynman Integral Reduction Program [HU-EP-17-08; FR-PHENO-2017-14; arXiv:1705.05610]   In this article, we present a new implementation of the Laporta algorithm to reduce scalar multi-loop integrals-appearing in quantum field theoretic calculations-to a set of master integrals. We extend existing approaches by using an additional algorithm based on modular arithmetic to remove linearly dependent equations from the system of equations arising from integration-by-parts and Lorentz identities. [...] OpenAccess: PDF PDF (PDFA); 2017-11-2814:04 [PUBDB-2017-12457] Preprint/Report Marquard, P. Life of $\Pi$ [DESY-17-154; arXiv:1710.03724; ]   The heavy-quark contribution to the polarisation function $\Pi$ at higher perturbative orders is presently only known approximately. We scrutinise the accuracy of state-of-the-art Padé approximations at three- and four-loop order [...] OpenAccess: PDF PDF (PDFA); 2017-11-2813:54 [PUBDB-2017-12456] Report/Journal Article et al The five-loop Beta function for a general gauge group and anomalous dimensions beyond Feynman gauge [DESY-17-142; BI-TP-2017-13; IPPP-17-68; arXiv:1709.07718; ] Journal of high energy physics 1710(10), 166 (2017) [10.1007/JHEP10(2017)166]   We focus on a non-abelian gauge field coupled to a single (but general) representation of a family of Nf fermions. By using the same machinery that had allowed us to evaluate the sub-leading large-Nf term of the five-loop Beta function earlier, we here report on a confirmation of the all-Nf result that has in the meantime been published by another group. [...] OpenAccess: PDF PDF (PDFA); 2017-11-2813:45 [PUBDB-2017-12453] Report/Journal Article et al New Prospects for the Numerical Calculation of Mellin--Barnes Integrals in Minkowskian Kinematics [arXiv:1704.02288] Acta physica Polonica / B 48(6), 995 - 1009 (2017) [10.5506/APhysPolB.48.995]   During the last several years, remarkable progress has been made in numerical calculations of dimensionally regulated multi-loop Feynman diagrams using Mellin–Barnes (MB) representations. The bottlenecks were non-planar diagrams and Minkowskian kinematics. [...] OpenAccess: PDF PDF (PDFA);