193 citations · 512 across the 20 of their papers we have counts for
8 papers · 1 filter
Hypergeometric functions, their epsilon expansions and Feynman diagrams
M. Yu. Kalmykov, Bernd A. Kniehl, B. F. L. Ward +1
We review the hypergeometric function approach to Feynman diagrams. Special consideration is given to the construction of the Laurent expansion. As an illustration, we describe a c…
Inclusive production of heavy-flavored hadrons at NLO in the GM-VFNS
Bernd A. Kniehl
We summarize recent progress in the theoretical description of heavy-flavored-hadron inclusive production at next-to-leading order in the general-mass variable-flavor-number scheme…
Status of AKK Fragmentation Functions
Bernd A. Kniehl
We summarize the improvements to the previous AKK extraction of fragmentation functions for pi^{+-}, K^{+-}, p/p-bar, K_S^0 and Lambda/Lambda-bar hadrons at next-to-leading order i…
Two-Loop Electroweak Corrections to the A^0 gamma gamma and A^0 g g Couplings of the CP-Odd Higgs Boson
Joachim Brod, Frank Fugel, Bernd A. Kniehl
Using the asymptotic-expansion technique, we compute the dominant two-loop electroweak corrections, of O(G_F m_t^2), to production and decay via a pair of photons or gluons of the…
Ghost contributions to charmonium production in polarized high-energy collisions
M. Klasen, B. A. Kniehl, L. N. Mihaila +1
In a previous paper [Phys. Rev. D 68, 034017 (2003)], we investigated the inclusive production of prompt J/psi mesons in polarized hadron-hadron, photon-hadron, and photon-photon c…
Dominant two-loop electroweak corrections to the hadroproduction of a pseudoscalar Higgs boson and its photonic decay
Joachim Brod, Frank Fugel, Bernd A. Kniehl
We present the dominant two-loop electroweak corrections to the partial decay widths to gluon jets and prompt photons of the neutral CP-odd Higgs boson A^0, with mass M_{A^0} < 2 M…