English
Related papers

Related papers: Five-flavour scheme predictions for $t\bar{t}b\bar…

200 papers

In this study, predictions obtained in the four and in the five flavour schemes are compared for two important processes involving heavy flavours at the LHC: the production of a $Z$ or a Higgs boson in association with $b$ quarks. In…

High Energy Physics - Phenomenology · Physics 2017-07-03 Davide Napoletano , Frank Krauss , Steffen Schumann

Top-quark pair production in association with two b-jets is computed at next-to-leading order QCD precision, including effects of the b-quark mass, and matched to a $t\bar{t}$+jets simulation in a variable flavor number scheme. The Monte…

High Energy Physics - Phenomenology · Physics 2024-02-26 Lars Ferencz , Stefan Höche , Judith Katzy , Frank Siegert

We propose simulation strategies for single production of third generation vector-like quarks at the LHC, implementing next-to-leading-order corrections in QCD and studying in detail their effect on cross sections and differential…

High Energy Physics - Phenomenology · Physics 2019-05-01 Giacomo Cacciapaglia , Alexandra Carvalho , Aldo Deandrea , Thomas Flacke , Benjamin Fuks , Devdatta Majumder , Luca Panizzi , Hua-Sheng Shao

The single vector-like top partner hadroproduction in association with top quark in the five and the six-flavour schemes at the LHC is investigated. The inclusive cross section and the differential distributions are evaluated for many…

High Energy Physics - Phenomenology · Physics 2018-10-29 Mohamed Sadek Zidi

In this paper we study the production of a heavy charged Higgs boson in association with heavy quarks at the LHC, in a type-II two-Higgs-doublet model. We present for the first time fully-differential results obtained in the four-flavour…

High Energy Physics - Phenomenology · Physics 2015-07-10 Celine Degrande , Maria Ubiali , Marius Wiesemann , Marco Zaro

We present analytic results for the partonic cross sections for the production of a Higgs boson via the fusion of two bottom quarks at N$^3$LO in QCD perturbation theory in the five-flavour scheme. We combine this perturbative result with…

High Energy Physics - Phenomenology · Physics 2020-08-26 Claude Duhr , Falko Dulat , Valentin Hirschi , Bernhard Mistlberger

The calculations of $Z + b{\bar b}$ tagged jet production performed in the four- and five-flavour schemes allow for detailed comparison of the heavy flavour structure of collinear and transverse momentum dependent (TMD) parton distributions…

High Energy Physics - Phenomenology · Physics 2021-06-21 H. Jung , S. Taheri Monfared

We study the production of a Higgs boson in association with a bottom-quark pair ($b \bar b H$) at hadron colliders. Our calculation is performed in the four-flavour scheme with massive bottom quarks. This work presents the first…

High Energy Physics - Phenomenology · Physics 2025-03-13 Christian Biello , Javier Mazzitelli , Aparna Sankar , Marius Wiesemann , Giulia Zanderighi

We study the modeling of $t$-channel single top-quark production at Large Hadron Collider (LHC) energies. We compare predictions at next-to-next-to-leading order in a 5-flavor scheme to those of next-to-leading order in a 4-flavor scheme,…

High Energy Physics - Phenomenology · Physics 2020-10-30 Jun Gao , Edmond L. Berger

We present results for the QCD next-to-leading order (NLO) calculation of single-top t-channel production in the 4-flavour scheme, interfaced to Parton Shower (PS) Monte Carlo programs according to the POWHEG and MC@NLO methods. Comparisons…

High Energy Physics - Phenomenology · Physics 2015-06-05 Rikkert Frederix , Emanuele Re , Paolo Torrielli

Measurements of $t\bar{t} H$ production in the $H\to b\bar{b}$ channel depend in a critical way on the theoretical uncertainty associated with the irreducible $t\bar{t}+b$-jet background. In this paper, analysing the various topologies that…

High Energy Physics - Phenomenology · Physics 2018-07-13 Tomáš Ježo , Jonas M. Lindert , Niccolo Moretti , Stefano Pozzorini

We consider the production of a Z boson decaying to leptons in association with a bottom-quark pair in hadronic collisions. For the first time, we compute predictions at next-to-next-to-leading order (NNLO) in QCD, and we combine them with…

High Energy Physics - Phenomenology · Physics 2024-06-21 Javier Mazzitelli , Vasily Sotnikov , Marius Wiesemann

We propose a novel technique for the combination of multi-jet merged simulations in the five-flavor scheme with calculations for the production of b-quark associated final states in the four-flavor scheme. We show the equivalence of our…

High Energy Physics - Phenomenology · Physics 2019-07-17 Stefan Höche , Johannes Krause , Frank Siegert

We study the production of a Higgs boson in association with bottom quarks in hadronic collisions, and present phenomenological predictions relevant to the 13 TeV LHC. Our results are accurate to the next-to-leading order in QCD, and…

High Energy Physics - Phenomenology · Physics 2015-06-22 M. Wiesemann , R. Frederix , S. Frixione , V. Hirschi , F. Maltoni , P. Torrielli

We present next-to-next-to-leading-order (NNLO) QCD corrections for Higgs production through bottom-quark annihilation (\bbH{}) matched to parton showers (NNLO+PS) using the \minnlo{} technique. The \minnlo{} method is adapted for the extra…

High Energy Physics - Phenomenology · Physics 2024-07-15 Christian Biello , Aparna Sankar , Marius Wiesemann , Giulia Zanderighi

We calculate the production of a W boson in association with up to two jets including at least one b-jet to next-to-leading order (NLO) in QCD at the CERN Large Hadron Collider with 7 TeV center-of-mass energy. Both exclusive and inclusive…

High Energy Physics - Phenomenology · Physics 2013-03-20 F. Caola , J. M. Campbell , F. Febres Cordero , L. Reina , D. Wackeroth

Several key processes at the LHC in the standard model and beyond that involve $b$ quarks, such as single-top, Higgs, and weak vector boson associated production, can be described in QCD either in a 4-flavor or 5-flavor scheme. In the…

High Energy Physics - Phenomenology · Physics 2015-06-04 Fabio Maltoni , Giovanni Ridolfi , Maria Ubiali

We present a next-to-next-to-leading order (NNLO) QCD calculation of the bottom-induced contributions to the production of a Higgs boson plus a jet, i.e. the process $p p \rightarrow H +j$ to $\mathcal{O}(y_b^2 \alpha_s^3)$. We work in the…

High Energy Physics - Phenomenology · Physics 2021-05-26 Roberto Mondini , Ciaran Williams

In this proceedings we compare phenomenological predictions for differential distributions in top-quark pair production at the LHC. In particular we consider NNLO QCD fixed-order predictions and parton-level predictions based on NLO QCD…

We briefly summarize the Nagy-Soper parton shower and the MC@NLO-like matching scheme. Results obtained using HELAC-NLO framework in conjunction with DEDUCTOR for top quark pair production in association with one hard jet at the LHC are…

High Energy Physics - Phenomenology · Physics 2015-10-09 Manfred Kraus
‹ Prev 1 2 3 10 Next ›