Zobrazeno 1 - 10
of 362
pro vyhledávání: '"Kirill Melnikov"'
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 5, Pp 1-46 (2024)
Abstract We derive a compact representation of the renormalized N-jettiness soft function that is free of infrared and collinear divergences through next-to-next-to-leading order in perturbative QCD. The number of hard partons N is a parameter in the
Externí odkaz:
https://doaj.org/article/a9d0992d029c4a8893ac0683e13a61ca
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 4, Pp 1-32 (2024)
Abstract We present an analytic calculation of the one-loop correction to the double-real emission contribution to the zero-jettiness soft function at N3LO in QCD, accounting for both gluon-gluon and quark-antiquark soft final-state partons. We expla
Externí odkaz:
https://doaj.org/article/e5ae15dc5a85449e9350429b508ea766
Autor:
Federica Devoto, Kirill Melnikov, Raoul Röntsch, Chiara Signorile-Signorile, Davide Maria Tagliabue
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 2, Pp 1-107 (2024)
Abstract We describe how the nested soft-collinear subtraction scheme [1] can be used to compute the next-to-next-to-leading order (NNLO) QCD corrections to the production of an arbitrary number of gluonic jets in hadron collisions. We show that the
Externí odkaz:
https://doaj.org/article/f67d936bb6db498ea5e77c25a33ea6ac
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 1, Pp 1-35 (2024)
Abstract We compute, in the framework of renormalon calculus, the O Λ QCD $$ \mathcal{O}\left({\Lambda}_{\textrm{QCD}}\right) $$ corrections to the production of t t ¯ $$ t\overline{t} $$ pairs in hadron collisions under the assumption that q q ¯
Externí odkaz:
https://doaj.org/article/b588c270af1b43eb86818872ee72cf21
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 11, Pp 1-15 (2023)
Abstract The renormalization-scale dependence of the non-factorizable virtual corrections to Higgs boson production in weak boson fusion at next-to-next-to-leading order in perturbative QCD is unusually strong, due to the peculiar nature of these cor
Externí odkaz:
https://doaj.org/article/3d6074975d784cda84a12b7277b6baf0
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 7, Pp 1-26 (2023)
Abstract Non-factorizable virtual corrections to Higgs boson production in weak boson fusion at next-to-next-to-leading order in QCD were estimated in the eikonal approximation [1]. This approximation corresponds to the expansion of relevant amplitud
Externí odkaz:
https://doaj.org/article/0847ce12caf841d8b90a9c83d1d365d4
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 5, Pp 1-26 (2023)
Abstract We discuss the linear power corrections to the electroweak production of top quarks at the LHC using renormalon calculus. We show how such non-perturbative corrections can be obtained using the Low-Burnett-Kroll theorem, which provides the f
Externí odkaz:
https://doaj.org/article/a4f2a934022e4d8cb8fc1dedf4d54c69
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 2, Pp 1-56 (2023)
Abstract We present a calculation of all matching coefficients for N-jettiness beam functions at next-to-next-to-next-to-leading order (N3LO) in perturbative quantum chromodynamics (QCD). Our computation is performed starting from the respective coll
Externí odkaz:
https://doaj.org/article/5e7014d78d954ad6aba34ae7f52e6ece
Autor:
Fabrizio Caola, Silvia Ferrario Ravasio, Giovanni Limatola, Kirill Melnikov, Paolo Nason, Melih Arslan Ozcelik
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 12, Pp 1-70 (2022)
Abstract We use an abelian model to study linear power corrections which arise from infrared renormalons and affect event shapes in e + e − annihilation into hadrons. While previous studies explored power corrections in the two-jet region, in this
Externí odkaz:
https://doaj.org/article/41540deb56cd489cb414887b3c95200c
Autor:
Christian Brønnum-Hansen, Kirill Melnikov, Jérémie Quarroz, Chiara Signorile-Signorile, Chen-Yu Wang
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 6, Pp 1-29 (2022)
Abstract We compute the non-factorisable O $$ \mathcal{O} $$ ( α s 2 $$ {\alpha}_s^2 $$ ) corrections to t-channel single-top quark production at the LHC. These peculiar corrections arise because of interactions between the heavy- and the light-quar
Externí odkaz:
https://doaj.org/article/557a39a0a6054590b4f3594b05086be5