SCOAP3 Repository 13 records found  1 - 10nextSearch took 0.02 seconds. 
1. Three-loop effective potential of general scalar theory via differential equations / Kniehl, Bernd A. ; Pikelner, Andrey F. ; Veretin, Oleg L.
We consider the scalar sector of a general renormalizable theory and evaluate the effective potential through three loops analytically. [...]
Published in Nuclear Physics B 937 (2018) 533-549 10.1016/j.nuclphysb.2018.10.017
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2. Breakdown of Nonrelativistic QCD Factorization in Processes Involving Two Quarkonia and its Cure / He, Zhi-Guo ; Kniehl, Bernd A. ; Wang, Xiang-Peng
We study inclusive processes involving two heavy quarkonia in nonrelativistic QCD (NRQCD) and demonstrate that, in the presence of two P-wave Fock states, NRQCD factorization breaks down, leaving uncanceled infrared singularities. [...]
Published in Physical Review Letters 121 (2018) 10.1103/PhysRevLett.121.172001 arXiv:1809.07993
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3. Prompt neutrinos from atmospheric charm in the general-mass variable-flavor-number scheme / Benzke, M. ; Garzelli, M. ; Kniehl, B. ; Kramer, G. ; et al
We present predictions for the prompt-neutrino flux arising from the decay of charmed mesons and baryons produced by the interactions of high-energy cosmic rays in the Earth’s atmosphere, making use of a QCD approach on the basis of the general-mass variable-flavor-number scheme for the description of charm hadroproduction at NLO, complemented by a consistent set of fragmentation functions. [...]
Published in JHEP 1712 (2017) 021 10.1007/JHEP12(2017)021 arXiv:1705.10386
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4. Explicit calculation of multi-fold contour integrals of certain ratios of Euler gamma functions. Part 1 / Gonzalez, Ivan ; Kniehl, Bernd A. ; Kondrashuk, Igor ; Notte-Cuello, Eduardo A. ; et al
In this paper, we proceed to study properties of Mellin–Barnes (MB) transforms of Usyukina–Davydychev (UD) functions. [...]
Published in Nuclear Physics B (2017) 10.1016/j.nuclphysb.2017.06.027
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5. Three-loop massive tadpoles and polylogarithms through weight six / Kniehl, B. ; Pikelner, A. ; Veretin, O.
We evaluate the three-loop massive vacuum bubble diagrams in terms of polylogarithms up to weight six. [...]
Published in JHEP 1708 (2017) 024 10.1007/JHEP08(2017)024 arXiv:1705.05136
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6. Counting the number of master integrals for sunrise diagrams via the Mellin-Barnes representation / Kalmykov, Mikhail ; Kniehl, Bernd
A number of irreducible master integrals for L -loop sunrise and bubble Feynman diagrams with generic values of masses and external momenta are explicitly evaluated via the Mellin-Barnes representation..
Published in JHEP 1707 (2017) 031 10.1007/JHEP07(2017)031 arXiv:1612.06637
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7. On the b -quark running mass in QCD and the SM / Bednyakov, A.V. ; Kniehl, B.A. ; Pikelner, A.F. ; Veretin, O.L.
We consider electroweak corrections to the relation between the running MS‾ mass mb of the b quark in the five-flavor QCD×QED effective theory and its counterpart in the Standard Model (SM). [...]
Published in Nuclear Physics B (2017) 10.1016/j.nuclphysb.2017.01.004
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8. Master integrals for the four-loop Sudakov form factor / Boels, Rutger H. ; Kniehl, Bernd A. ; Yang, Gang
The light-like cusp anomalous dimension is a universal function in the analysis of infrared divergences. [...]
Published in Nuclear Physics B (2015) 10.1016/j.nuclphysb.2015.11.016
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9. Electroweak corrections to Z -boson hadroproduction at finite transverse momentum / Hollik, W. ; Kniehl, B.A. ; Scherbakova, E.S. ; Veretin, O.L.
We calculate the full one-loop electroweak radiative corrections, of O(α2αs) , to the cross section of single Z -boson inclusive hadroproduction at finite transverse momentum ( pT ). [...]
Published in Nuclear Physics B (2015) 10.1016/j.nuclphysb.2015.09.018
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10. Two-loop electroweak threshold corrections in the Standard Model / Kniehl, Bernd A. ; Pikelner, Andrey F. ; Veretin, Oleg L.
We study the relationships between the basic parameters of the on-shell renormalization scheme and their counterparts in the MS¯ scheme at full order O(α2) in the Standard Model. [...]
Published in Nuclear Physics B 896 (2015) 19-51 10.1016/j.nuclphysb.2015.04.010
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SCOAP3 Repository : 13 records found   1 - 10next
See also: similar author names
1 Kniehl, B. A.
5 Kniehl, B.A.
1 Kniehl, Bernd
9 Kniehl, Bernd A.
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