Zobrazeno 1 - 10
of 34
pro vyhledávání: '"Hjalte Frellesvig"'
Autor:
Giacomo Brunello, Vsevolod Chestnov, Giulio Crisanti, Hjalte Frellesvig, Manoj K. Mandal, Pierpaolo Mastrolia
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 9, Pp 1-40 (2024)
Abstract We present a simplification of the recursive algorithm for the evaluation of intersection numbers for differential n-forms, by combining the advantages emerging from the choice of delta-forms as generators of relative twisted cohomology grou
Externí odkaz:
https://doaj.org/article/a9e25337af9445a2a29e8d882d44ca43
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 8, Pp 1-57 (2024)
Abstract We use the loop-by-loop Baikov representation to investigate the geometries in Feynman integrals contributing to the classical dynamics of a black-hole two-body system in the post-Minkowskian expansion of general relativity. These geometries
Externí odkaz:
https://doaj.org/article/7fad490ad3d3481685f67c6156b385fb
Publikováno v:
SciPost Physics, Vol 16, Iss 6, p 150 (2024)
We investigate $\varepsilon$-factorised differential equations, uniform transcendental weight and purity for Feynman integrals. We are in particular interested in Feynman integrals beyond the ones which evaluate to multiple polylogarithms. We show th
Externí odkaz:
https://doaj.org/article/93122f809fd4498ea23d7c6161debd4c
Autor:
Vsevolod Chestnov, Hjalte Frellesvig, Federico Gasparotto, Manoj K. Mandal, Pierpaolo Mastrolia
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 6, Pp 1-41 (2023)
Abstract We propose a new method for the evaluation of intersection numbers for twisted meromorphic n-forms, through Stokes’ theorem in n dimensions. It is based on the solution of an n-th order partial differential equation and on the evaluation o
Externí odkaz:
https://doaj.org/article/b22e3a77238b49a384f6234a02f80e05
Autor:
Roberto Bonciani, Vittorio Del Duca, Hjalte Frellesvig, Martijn Hidding, Valentin Hirschi, Francesco Moriello, Giulio Salvatori, Gábor Somogyi, Francesco Tramontano
Publikováno v:
Physics Letters B, Vol 843, Iss , Pp 137995- (2023)
We compute the next-to-leading-order (NLO) QCD corrections to the Higgs pT distribution in Higgs production in association with a jet via gluon fusion at the LHC, with exact dependence on the mass of the quark circulating in the heavy-quark loops. Th
Externí odkaz:
https://doaj.org/article/58c771a2ce7d460490c564299d34cb31
Autor:
Hjalte Frellesvig
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 3, Pp 1-33 (2022)
Abstract In this paper we develop and demonstrate a method to obtain epsilon factorized differential equations for elliptic Feynman integrals. This method works by choosing an integral basis with the property that the period matrix obtained by integr
Externí odkaz:
https://doaj.org/article/2dc96e7599b0452fa1d411d0efa53064
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 5, Pp 1-27 (2021)
Abstract We consider the genus-one curves which arise in the cuts of the sunrise and in the elliptic double-box Feynman integrals. We compute and compare invariants of these curves in a number of ways, including Feynman parametrization, lightcone and
Externí odkaz:
https://doaj.org/article/5ac99293ebfc42f7bb3807909ca415a6
Autor:
Hjalte Frellesvig, Federico Gasparotto, Stefano Laporta, Manoj K. Mandal, Pierpaolo Mastrolia, Luca Mattiazzi, Sebastian Mizera
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 3, Pp 1-55 (2021)
Abstract We present a detailed description of the recent idea for a direct decomposition of Feynman integrals onto a basis of master integrals by projections, as well as a direct derivation of the differential equations satisfied by the master integr
Externí odkaz:
https://doaj.org/article/f95f55f29c7b4491b49aa1ae8e616ada
Publikováno v:
Journal of High Energy Physics, Vol 2020, Iss 5, Pp 1-21 (2020)
Abstract The production of electroweak Z bosons that decay to neutrinos and recoil against jets with large transverse momentum p ⊥ is an important background process to searches for dark matter at the Large Hadron Collider (LHC). To fully benefit f
Externí odkaz:
https://doaj.org/article/9eace827f80f4b84ba334e0c1951c12d
Autor:
Hjalte Frellesvig, Federico Gasparotto, Stefano Laporta, Manoj K. Mandal, Pierpaolo Mastrolia, Luca Mattiazzi, Sebastian Mizera
Publikováno v:
Journal of High Energy Physics, Vol 2019, Iss 5, Pp 1-112 (2019)
Abstract We elaborate on the recent idea of a direct decomposition of Feynman integrals onto a basis of master integrals on maximal cuts using intersection numbers. We begin by showing an application of the method to the derivation of contiguity rela
Externí odkaz:
https://doaj.org/article/6a39179cf2b0478f86588f5964e0673d