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Why $$\alpha _s$$ cannot be determined from hadronic processes without simultaneously determining the parton distributions
Abstract We show that any determination of the strong coupling $$\alpha _s$$
Why α s cannot be determined from hadronic processes without simultaneously determining the parton distributions
Abstract: We show that any determination of the strong coupling αs from a process which depends on parton distributions, such as hadronic processes or deep-inelastic scattering, generally does not lead to a correct result unless...
Z boson production in bottom-quark fusion
We compute the total cross-section for Z boson production in bottom-quark fusion, applying to this case the method we previously used for Higgs production in bottom fusion. Namely, we match, through the FONLL procedure, the...
Precision determination of the strong coupling constant within a global PDF analysis
Richard D Ball, Stefano Carrazza, Luigi Del Debbio, Stefano Forte, Zahari Kassabov, Juan Rojo, Emma Slade, Maria Ubiali
Jun 29, 2018
We present a determination of the strong coupling constant α s ( m Z ) based on the NNPDF3.1 determination of parton distributions, which for the first time includes constraints from jet production, top-quark pair...
Parton distributions with theory uncertainties
Rabah Abdul Khalek, Richard D. Ball, Stefano Carrazza, Stefano Forte, Tommaso Giani, Zahari Kassabov, Rosalyn L. Pearson, Emanuele R. Nocera, Juan Rojo, Luca Rottoli, Maria Ubiali, Cameron Voisey, Michael Wilson
Nov 14, 2020
Abstract: We formulate a general approach to the inclusion of theoretical uncertainties, specifically those related to the missing higher order uncertainty (MHOU), in the determination of parton distribution functions (PDFs). We...
An open-source machine learning framework for global analyses of parton distributions
Richard D. Ball, Stefano Carrazza, Juan Cruz-Martinez, Luigi Del Debbio, Stefano Forte, Tommaso Giani, Shayan Iranipour, Zahari Kassabov, Jose I. Latorre, Emanuele R. Nocera, Rosalyn L. Pearson, Juan Rojo, Roy Stegeman, Christopher Schwan, Maria Ubiali, Cameron Voisey, Michael Wilson
Dec 22, 2021
Abstract: We present the software framework underlying the NNPDF4.0 global determination of parton distribution functions (PDFs). The code is released under an open source licence and is accompanied by extensive documentation...
An open-source machine learning framework for global analyses of parton distributions
Richard D. Ball, Stefano Carrazza, Juan Cruz-Martinez, Luigi Del Debbio, Stefano Forte, Tommaso Giani, Shayan Iranipour, Zahari Kassabov, Jose I. Latorre, Emanuele R. Nocera, Rosalyn L. Pearson, Juan Rojo, Roy Stegeman, Christopher Schwan, Maria Ubiali, Cameron Voisey, Michael Wilson
Oct 31, 2021
Abstract: We present the software framework underlying the NNPDF4.0 global determination of parton distribution functions (PDFs). The code is released under an open source licence and is accompanied by extensive documentation...
The path to proton structure at 1% accuracy
Richard D. Ball, Stefano Carrazza, Juan Cruz-Martinez, Luigi Del Debbio, Stefano Forte, Tommaso Giani, Shayan Iranipour, Zahari Kassabov, Jose I. Latorre, Emanuele R. Nocera, Rosalyn L. Pearson, Juan Rojo, Roy Stegeman, Christopher Schwan, Maria Ubiali, Cameron Voisey, Michael Wilson
Jul 08, 2022
Abstract: We present a new set of parton distribution functions (PDFs) based on a fully global dataset and machine learning techniques: NNPDF4.0. We expand the NNPDF3.1 determination with 44 new datasets, mostly from the LHC. We...
Published by: Springer Berlin Heidelberg
Analysis of strong ionospheric scintillation events measured by means of GPS signals at low latitudes during disturbed conditions
Biagio Forte
Aug 01, 2012
Drifting structures characterized by inhomogeneities in the spatial electron density distribution at ionospheric heights cause the scintillation of radio waves propagating through. The fractional electron density fluctuations...
The path to proton structure at 1% accuracy
Abstract We present a new set of parton distribution functions (PDFs) based on a fully global dataset and machine learning techniques: NNPDF4.0. We expand the NNPDF3.1 determination with 44 new...
Richard D Ball, Stefano Carrazza, Juan Cruz-Martinez, Luigi Del Debbio, Stefano Forte, Tommaso Giani, Shayan Iranipour, Zahari Kassabov, Jose I Latorre, Emanuele R Nocera, Rosalyn L Pearson, Juan Rojo, Roy Stegeman, Christopher Schwan, Maria Ubiali, Cameron Voisey, Michael Wilson
May 11, 2022
Refractive scattering evidence from multifrequency scintillation spectra observed at auroral latitudes
Biagio Forte
Apr 01, 2008
During October 2003 major geomagnetic storm, intensity scintillations on radio
signals at 150 MHz and 400 MHz transmitted coherently from Tsykada beacon satellites have been observed. Through the analysis of intensity...
signals at 150 MHz and 400 MHz transmitted coherently from Tsykada beacon satellites have been observed. Through the analysis of intensity...
Analysis of strong ionospheric scintillation events measured by means of GPS signals at low latitudes during disturbed conditions
Biagio Forte
Aug 01, 2012
Drifting structures characterized by inhomogeneities in the spatial electron density distribution at ionospheric heights cause the scintillation of radio waves propagating through. The fractional electron density fluctuations...
Quantifying the propagation of distress and mental disorders in social networks.
Heterogeneity of human beings leads to think and react differently to social phenomena. Awareness and homophily drive people to weigh interactions in social multiplex networks, influencing a potential contagion effect. To...
On the relationship between the geometrical control of scintillation indices and the data detrending problems observed at high latitudes
Biagio Forte
Dec 01, 2007
The experimental estimate of radio waves scintillation, caused by plasma density irregularities in the ionosphere,
is usually attempted by means of scintillation indices which are essentially standard deviations of...
is usually attempted by means of scintillation indices which are essentially standard deviations of...
Analysis of the PLL phase error in presence of simulated ionospheric scintillation events
Biagio Forte
Jun 01, 2012
The functioning of standard phase locked loops (PLL), including those used to track radio signals from Global Navigation Satellite Systems (GNSS), is based on a linear approximation which holds in presence of small phase errors....
Analysis of the PLL phase error in presence of simulated ionospheric scintillation events
Biagio Forte
Jun 01, 2012
The functioning of standard phase locked loops (PLL), including those used to track radio signals from Global Navigation Satellite Systems (GNSS), is based on a linear approximation which holds in presence of small phase errors....
On the relationship between the geometrical control of scintillation indices and the data detrending problems observed at high latitudes
Biagio Forte
Dec 01, 2007
The experimental estimate of radio waves scintillation, caused by plasma density irregularities in the ionosphere,
is usually attempted by means of scintillation indices which are essentially standard deviations of...
is usually attempted by means of scintillation indices which are essentially standard deviations of...
Refractive scattering evidence from multifrequency scintillation spectra observed at auroral latitudes
Biagio Forte
Apr 01, 2008
During October 2003 major geomagnetic storm, intensity scintillations on radio
signals at 150 MHz and 400 MHz transmitted coherently from Tsykada beacon satellites have been observed. Through the analysis of intensity...
signals at 150 MHz and 400 MHz transmitted coherently from Tsykada beacon satellites have been observed. Through the analysis of intensity...
The Grizzly, November 11, 1988
Jean M. Kiss, Kevin Murphy, Lora L. Hart, Richard P. Richter, Dorothy O'Malley, Neil Schafer, Reed Coats, Robert Carmignani, Kerry Durgin, Christopher Harbach, Michelle L. Grande
Jan 01, 0001
Bush Takes Election: Republicans Win Four More Students Voice Concerns: Richter and Kane Listen Letter: Beam The Grizzly Up, Billy Finzi's French's Forte College's Music Program Reviewed The Pack is Back with 5th MAC Title ...
Ursinus College Collegeville Pennsylvania newspaper George Bush Michael Dukakis Whitians Red and Gold day Robocop cross country Soccer Swimming Gerald Finzi John French illegal drugs J. Houghton Kane cultural history Higher Education Liberal Studies Social History United States History
Published by: Ursinus College
Setting up a rapid diagnostic clinic for patients with vague symptoms of cancer
Background
The study sought to evaluate the impact of a Rapid Diagnostic Clinic (RDC) service designed to improve general practitioner (GP) referral processes for patients who do not meet existing referral criteria yet...
The study sought to evaluate the impact of a Rapid Diagnostic Clinic (RDC) service designed to improve general practitioner (GP) referral processes for patients who do not meet existing referral criteria yet...
Comparison of ionospheric scintillation models with experimental data for satellite navigation applications
A comparison between two of the most used scintillation models and experimental data is presented. The experimental
data have been derived from a GPS scintillation monitor developed at Cornell University and placed in...
data have been derived from a GPS scintillation monitor developed at Cornell University and placed in...
Setting up a rapid diagnostic clinic for patients with vague symptoms of cancer
Background
The study sought to evaluate the impact of a Rapid Diagnostic Clinic (RDC) service designed to improve general practitioner (GP) referral processes for patients who do not meet existing referral criteria yet...
The study sought to evaluate the impact of a Rapid Diagnostic Clinic (RDC) service designed to improve general practitioner (GP) referral processes for patients who do not meet existing referral criteria yet...
Comparison of ionospheric scintillation models with experimental data for satellite navigation applications
A comparison between two of the most used scintillation models and experimental data is presented. The experimental
data have been derived from a GPS scintillation monitor developed at Cornell University and placed in...
data have been derived from a GPS scintillation monitor developed at Cornell University and placed in...
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