Results 21 to 30 of about 17,573 (205)
NLO ACTIVITY AND COMPUTATIONAL DISCUSSION OF HALOGEN-SUBSTITUTED CHALCONE DERIVATIVES
RASAYAN Journal of Chemistry, 2023 The four halogen-substituted chalcones 1–4 have been synthesized and analyzed to FT-Infrared, UV-Visible, GC-MS spectrometer, and 1D NMR (1H and 13C) spectroscopy techniques. Computational calculations were carried out for geometrical optimization of structure regards bond length, bond angle, and torsional angle estimated.
V. Shunmuga Vadivoo +3 more
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t tbar W and t tbar Z Hadroproduction at NLO accuracy in QCD with Parton Shower and Hadronization effects [PDF]
, 2012 We present theoretical predictions for the hadroproduction of t tbar W+, t tbar W- and t tbar Z at LHC as obtained by matching numerical computations at NLO accuracy in QCD with Shower Monte Carlo programs. The calculation is performed by PowHel, relying
Garzelli, M. V. +3 more
core +3 more sources
Meromorphic solutions of recurrence relations and DRA method for multicomponent master integrals
Journal of High Energy Physics, 2018 We formulate a method to find the meromorphic solutions of higher-order recurrence relations in the form of the sum over poles with coefficients defined recursively. Several explicit examples of the application of this technique are given.
Roman N. Lee, Kirill T. Mingulov
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Mixed QCD-EW corrections for Higgs leptonic decay via HW + W − vertex
Journal of High Energy Physics, 2021 We consider the two-loop corrections to the HW + W − vertex at order αα s . We construct a canonical basis for the two-loop integrals using the Baikov representation and the intersection theory.
Chichuan Ma +4 more
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The BlackHat Library for One-Loop Amplitudes [PDF]
, 2013 We present recent next-to-leading order (NLO) results in perturbative QCD obtained using the BlackHat software library. We discuss the use of n-tuples to separate the lengthy matrix-element computations from the analysis process.
Bern, Z. +7 more
core +2 more sources
Journal of High Energy Physics, 2022 We consider the problem of obtaining higher order in regularization parameter ε analytical results for master integrals with elliptics. The two commonly employed methods are provided by the use of differential equations and direct integration of ...
M. A. Bezuglov, A. I. Onishchenko
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Automation of NLO QCD and EW corrections with Sherpa and Recola [PDF]
, 2017 This publication presents the combination of the one-loop matrix-element generator Recola with the multipurpose Monte Carlo program Sherpa. Since both programs are highly automated, the resulting Sherpa+Recola framework allows for the computation of -in ...
Biedermann, Benedikt +5 more
core +3 more sources
Evaluating multi-loop Feynman integrals numerically through differential equations
Journal of High Energy Physics, 2019 The computation of Feynman integrals is often the bottleneck of multi-loop calculations. We propose and implement a new method to efficiently evaluate such integrals in the physical region through the numerical integration of a suitable set of ...
Manoj K. Mandal, Xiaoran Zhao
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From dimensional regularization to NLO computations in four dimensions [PDF]
Proceedings of The European Physical Society Conference on High Energy Physics — PoS(EPS-HEP2015), 2016 Loop-tree duality (LTD) allows to express virtual contributions in terms of phase-space integrals, thus leading to a direct mapping with real radiation terms. We review the basis of the method and describe its application to regularize Feynman integrals.
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Perturbation theory of computing QCD jet cross sections beyond NLO accuracy [PDF]
Proceedings of 8th International Symposium on Radiative Corrections — PoS(RAD COR 2007), 2008 talk presented at the 8th International Symposium on Radiative Corrections, Florence, Italy, October 1-5 ...
Trocsanyi, Zoltan, Somogyi, Gabor
openaire +2 more sources