Zobrazeno 1 - 10
of 42
pro vyhledávání: '"Javier Mazzitelli"'
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 4, Pp 1-10 (2024)
Abstract The running of the top quark mass (m t) is probed at the next-to-next-to-leading order in quantum chromodynamics for the first time. The result is obtained by comparing calculations in the modified minimal subtraction ( $$\overline{{\text{MS
Externí odkaz:
https://doaj.org/article/89dec134e94f49dc9e3e5c0b415ade1a
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 11, Pp 1-24 (2023)
Abstract We consider extensions of the soft-gluon effective coupling that generalize the Catani-Marchesini-Webber (CMW) coupling in the context of soft-gluon resummation beyond the next-to-leading logarithmic accuracy. Starting from the probability d
Externí odkaz:
https://doaj.org/article/26d2e8fa2b7e4314adae539ec2799ba6
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 9, Pp 1-26 (2023)
Abstract We present a new simulation for Higgs boson production in association with bottom quarks ( b b ¯ H $$ b\overline{b}H $$ ) at next-to-leading order (NLO) accuracy matched to parton showers in hadronic collisions. Both contributions, the stan
Externí odkaz:
https://doaj.org/article/12dcc0a837424b408683b505fa0179f4
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 4, Pp 1-63 (2023)
Abstract We consider QCD radiative corrections to the production of a heavy-quark pair in hadronic collisions. We present the computation of the soft-parton contributions at low transverse momentum of the heavy-quark pair up to second order in the QC
Externí odkaz:
https://doaj.org/article/1483625ee427421591838ab02d6983f3
Publikováno v:
Physics Letters B, Vol 843, Iss , Pp 137991- (2023)
The production of B hadrons is among the most abundant fundamental QCD processes measured at the LHC. We present for the first time predictions for this process accurate to next-to-next-to-leading order in QCD perturbation theory by simulating bottom
Externí odkaz:
https://doaj.org/article/c08ef1015e574b17b5794d873e4b3b19
Autor:
Javier Mazzitelli
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 9, Pp 1-16 (2022)
Abstract The ambiguity in the choice of a renormalization scheme and scale for the top-quark mass leads to an additional source of theoretical uncertainty in the calculation of the Higgs boson production cross section via gluon fusion. These uncertai
Externí odkaz:
https://doaj.org/article/6e0cc43bfbbc41fa9d72f8b87cde631c
Autor:
Javier Mazzitelli, Pier Francesco Monni, Paolo Nason, Emanuele Re, Marius Wiesemann, Giulia Zanderighi
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 4, Pp 1-56 (2022)
Abstract We consider the production of a pair of heavy quarks and illustrate the derivation of the MiNNLOPS method to match next-to-next-to-leading order calculations with parton showers (NNLO+PS) for this class of processes. As a first application,
Externí odkaz:
https://doaj.org/article/b29b43de28fa4584ade214a105e34a9d
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 9, Pp 1-18 (2021)
Abstract We combine NLO predictions with full top-quark mass dependence with approximate NNLO predictions for Higgs-boson pair production in gluon fusion, including the possibility to vary coupling parameters within a non-linear Effective Field Theor
Externí odkaz:
https://doaj.org/article/b23cb75aa999420cada3514171aed5da
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 3, Pp 1-31 (2021)
Abstract We report on the first fully differential calculation of the next-to-next-to-leading-order (NNLO) QCD radiative corrections to the production of bottom-quark pairs at hadron colliders. The calculation is performed by using the q T subtractio
Externí odkaz:
https://doaj.org/article/c197cd5cf8ca4fbbacc0e2bce3007da6
Publikováno v:
Journal of High Energy Physics, Vol 2020, Iss 9, Pp 1-19 (2020)
Abstract In this work we extend the q T -subtraction formalism, originally developed for QCD corrections, to the case of mixed QCD⊗QED corrections, and apply it to the fully exclusive calculation of the O α s α $$ \mathcal{O}\left({\alpha}_s\alph
Externí odkaz:
https://doaj.org/article/5fc5053528f54fb18d7c7ab114e9e011