442 citations · 8.6k across the 185 of their papers we have counts for
28 papers · 1 filter
Updated predictions for toponium production at the LHC
M. V. Garzelli, G. Limatola, S. -O. Moch +2
We provide an update on QCD predictions for top-quark pair production close to threshold including bound state effects at the Large Hadron Collider. We compute the top-quark pair i…
xFitter Updates: Probing Z Boson Couplings with Forward-Backward Asymmetry
Oleksandr Zenaiev
We present recent updates in the xFitter software framework for global fits of parton distribution functions in high-energy physics. Our focus is on investigating the sensitivity t…
A framework for simultaneous fit of QCD and BSM parameters with xFitter
XiaoMin Shen, Simone Amoroso, Jun Gao +2
An extension of the xFitter open-source program for QCD analyses is presented, allowing for a polynomial parameterization of the dependence of physical observables on theoretical p…
NNLO PDFs driven by top-quark data
S. Alekhin, M. V. Garzelli, S. -O. Moch +1
We study the impact of state-of-the-art top-quark data collected at the Large Hadron Collider on parton distribution functions (PDFs). Following the ABMP methodology, the fit extra…
Compatibility between theoretical predictions and experimental data for top-antitop hadroproduction at NNLO QCD accuracy
Maria Vittoria Garzelli, Javier Mazzitelli, Sven-Olaf Moch +1
We compare double-differential normalized production cross sections for top-antitop hadroproduction at NNLO QCD accuracy, as obtained through a customized version of the MATR…
Top-quark pole mass extraction at NNLO accuracy, from total, single- and double-differential cross sections for production at the LHC
M. V. Garzelli, J. Mazzitelli, S. -O. Moch +1
We extract the top-quark mass value in the on-shell renormalization scheme from the comparison of theoretical predictions for at next-to-next-to-leadi…
Exploring SMEFT Couplings Using the Forward-Backward Asymmetry in Neutral Current Drell-Yan Production at the LHC
Andrii Anataichuk, Sven-Olaf Moch, Hamed Abdolmaleki +12
Neutral current Drell-Yan (DY) lepton-pair production is considered in the framework of the Standard Model Effective Field Theory (SMEFT). Using the open-source fit platform xFitte…
xFitter: An Open Source QCD Analysis Framework. A resource and reference document for the Snowmass study
The xFitter Developers' Team, :, H. Abdolmaleki +21
We provide an overview of the xFitter open-source software package, review the general capabilities of the program, and highlight applications relevant to the Snowmass study. An up…
QCD analysis of pion fragmentation functions in the xFitter framework
xFitter Collaboration, Hamed Abdolmaleki, Maryam Soleymaninia +7
We present the first open-source analysis of fragmentation functions (FFs) of charged pions (entitled IPM-xFitter) computed at next-to-leading order (NLO) and next-to-next-to-leadi…
Longitudinal Z-Boson Polarization and the Higgs Boson Production Cross Section at the Large Hadron Collider
S. Amoroso, J. Fiaschi, F. Giuli +3
Charged lepton pairs are produced copiously in high-energy hadron collisions via electroweak gauge boson exchange, and are one of the most precisely measured final states in proton…
Heavy-flavor hadro-production with heavy-quark masses renormalized in the , MSR and on-shell schemes
M. V. Garzelli, L. Kemmler, S. Moch +1
We present predictions for heavy-quark production at the Large Hadron Collider making use of the and MSR renormalization schemes for the heavy-quark mass as a…
Parton Distribution Functions of the Charged Pion Within The xFitter Framework
Ivan Novikov, Hamed Abdolmaleki, Daniel Britzger +9
We present the first open-source analysis of parton distribution functions (PDFs) of charged pions using xFitter, an open-source QCD fit framework to facilitate PDF extraction and…
Improved constraints on parton distributions using LHCb, ALICE and HERA heavy-flavour measurements and implications for the predictions for prompt atmospheric-neutrino fluxes
O. Zenaiev, M. V. Garzelli, K. Lipka +5
The impact of measurements of heavy-flavour production in deep inelastic scattering and in collisions on parton distribution functions is studied in a QCD analysis at nex…
Recent QCD results from the xFitter project: Probing the strange content of the proton with charm production in charged current at LHeC
xFitter Developers Team, Hamed Abdolmaleki, Valerio Bertone +11
We investigate charm production in charged-current deep-inelastic scattering (DIS) using the xFitter program. xFitter is an open-source software framework for the determination of…
PDF Profiling Using the Forward-Backward Asymmetry in Neutral Current Drell-Yan Production
Elena Accomando, Juri Fiaschi, Francesco Hautmann +11
Non-perturbative QCD effects from Parton Distribution Functions (PDFs) may be constrained by using high-statistics Large Hadron Collider (LHC) data. Drell-Yan (DY) measurements in…
Probing the strange content of the proton with charm production in charged current at LHeC
xFitter Developers' team, :, Hamed Abdolmaleki +12
We study charm production in charged-current deep-inelastic scattering (DIS) using the xFitter framework. Recent results from the LHC have focused renewed attention on the determin…
Beyond the Standard Model Physics at the HL-LHC and HE-LHC
X. Cid Vidal, M. D'Onofrio, P. J. Fox +294
This is the third out of five chapters of the final report [1] of the Workshop on Physics at HL-LHC, and perspectives on HE-LHC [2]. It is devoted to the study of the potential, in…
xFitter 2.0.0: Heavy quark matching scales: Unifying the FFNS and VFNS
The xFitter Developers' Team, :, V. Bertone +15
xFitter is an open-source package that provides a framework for the determination of the parton distribution functions (PDFs) of the proton for many different kinds of analyses in…
Impact of low- resummation on QCD analysis of HERA data
xFitter Developers' team, :, Hamed Abdolmaleki +14
Fits to the final combined HERA deep-inelastic scattering cross-section data within the conventional DGLAP framework of QCD have shown some tension at low and low . A reso…
xFitter 2.0.0: An Open Source QCD Fit Framework
V. Bertone, M. Botje, D. Britzger +10
xFitter is an open-source package that provides a framework for the determination of the parton distribution functions (PDFs) of the proton for many different kinds of analyses in…
The photon PDF determination within the xFitter framework
Francesco Giuli
The xFitter project (former HERAFitter project) is an open-source package that provides a framework for the determination of the parton distribution functions (PDFs) of the proton…
Impact of the heavy quark matching scales in PDF fits
The xFitter Developers Team, V. Bertone, D. Britzger +14
We investigate the impact of displaced heavy quark matching scales in a global fit. The heavy quark matching scale determines at which energy scale the QCD theory trans…
Running of the Charm-Quark Mass from HERA Deep-Inelastic Scattering Data
A. Gizhko, A. Geiser, S. Moch +47
Combined HERA data on charm production in deep-inelastic scattering have previously been used to determine the charm-quark running mass in the MSbar renormalisation sche…
The photon PDF from high-mass Drell Yan data at the LHC using xFitter
Francesco Giuli
In this contribution, we review the results of the recent paper "The photon PDF from high-mass Drell Yan data at the LHC" (arXiv:1701.08553), where a determination of the photon PD…