Zobrazeno 1 - 10
of 99
pro vyhledávání: '"André H. Hoang"'
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 12, Pp 1-73 (2023)
Abstract We generalize and update our former top quark mass calibration framework for Monte Carlo (MC) event generators based on the e + e − hadron-level 2-jettiness τ 2 distribution in the resonance region for boosted t t ¯ $$ t\overline{t} $$ p
Externí odkaz:
https://doaj.org/article/67520620537343d7b83b991141dfa932
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 9, Pp 1-21 (2023)
Abstract The computation of the single-differential top quark-antiquark pair ( t t ¯ $$ \textrm{t}\overline{\textrm{t}} $$ ) production cross section at NLO in the fixed-order expansion is examined consistently using the MSR and MS ¯ $$ \overline{\
Externí odkaz:
https://doaj.org/article/21d258ec4aaf4833b0a8345e55903e81
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 9, Pp 1-44 (2022)
Abstract In a previous article, we have shown that the discrepancy between the fixed-order (FOPT) and contour-improved (CIPT) perturbative expansions for τ hadronic spectral function moments, which had affected the precision of α s determinations f
Externí odkaz:
https://doaj.org/article/81b0bb39a5f44242bc6d432f008c9d0c
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 7, Pp 1-50 (2022)
Abstract We propose a simple and easy-to-implement scheme for a renormalon-free gluon condensate (GC) matrix element, which is analogous to implementations of short-distance heavy-quark mass renormalization schemes existing in the literature already
Externí odkaz:
https://doaj.org/article/801646a968fe40aaa9ece7ab10d39542
Publikováno v:
Journal of High Energy Physics, Vol 2019, Iss 12, Pp 1-81 (2019)
Abstract We provide a quantum field theory based description of the nonperturbative effects from hadronization for soft drop groomed jet mass distributions using the soft- collinear effective theory and the coherent branching formalism. There are two
Externí odkaz:
https://doaj.org/article/7dd78cd4c3434846a83e047020f984b3
Publikováno v:
Journal of High Energy Physics, Vol 2019, Iss 8, Pp 1-60 (2019)
Abstract We calculate the O( α s 2 $$ {\alpha}_s^2 $$ ) corrections to the primary massive quark jet functions in Soft-Collinear Effective Theory (SCET). They are an important ingredient in factorized predictions for inclusive jet mass cross section
Externí odkaz:
https://doaj.org/article/54edddd4685e4f47a70e149b3b92be9d
Publikováno v:
Journal of High Energy Physics, Vol 2018, Iss 10, Pp 1-110 (2018)
Abstract We show that the presence of an infrared cutoff Q 0 in the parton shower (PS) evolution for massive quarks implies that the generator quark mass corresponds to a Q 0-dependent short-distance mass scheme and is therefore not the pole mass. Ou
Externí odkaz:
https://doaj.org/article/2cd616e39e084ce1a898b9b781785fa7
Autor:
André H. Hoang, Ambar Jain, Christopher Lepenik, Vicent Mateu, Moritz Preisser, Ignazio Scimemi, Iain W. Stewart
Publikováno v:
Journal of High Energy Physics, Vol 2018, Iss 4, Pp 1-58 (2018)
Abstract We provide a detailed description and analysis of a low-scale short-distance mass scheme, called the MSR mass, that is useful for high-precision top quark mass determinations, but can be applied for any heavy quark Q. In contrast to earlier
Externí odkaz:
https://doaj.org/article/a845a77947694f63887459255a26584e
Autor:
Fabian Bach, Bijan Chokoufé Nejad, André H. Hoang, Wolfgang Kilian, Jürgen Reuter, Maximilian Stahlhofen, Thomas Teubner, Christian Weiss
Publikováno v:
Journal of High Energy Physics, Vol 2018, Iss 3, Pp 1-78 (2018)
Abstract We present an approach to predict exclusive W + b W − b ¯ $$ {W}^{+}b{W}^{-}\overline{b} $$ production at lepton colliders that correctly describes the top-anti-top threshold as well as the continuum region. We incorporate t t ¯ $$ t\ove
Externí odkaz:
https://doaj.org/article/97362ce9ce094281a08f2be9b16cfaf6
Publikováno v:
Journal of High Energy Physics, Vol 2017, Iss 9, Pp 1-50 (2017)
Abstract We provide a systematic renormalization group formalism for the mass effects in the relation of the pole mass m Q pole and short-distance masses such as the M S ¯ $$ \overline{\mathrm{MS}} $$ mass m ¯ Q $$ {\overline{m}}_Q $$ of a heavy qu
Externí odkaz:
https://doaj.org/article/338b9b549d7847c9ae69c090395eb1e0