Theoretical issues in PDF determination and associated uncertainties
We study several sources of theoretical uncertainty in the determination of parton distributions (PDFs) which may affect current PDF sets used for precision physics at the Large Hadron Collider, and explain discrepancies between them. We consider in particular the use of fixed-flavor versus variable...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Ball, Richard D. [verfasserIn] |
|---|
| Format: |
E-Artikel |
|---|---|
| Sprache: |
Englisch |
| Erschienen: |
2013transfer abstract |
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| Umfang: |
10 |
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| Übergeordnetes Werk: |
Enthalten in: Applying the Go/NoGo processing schema to a visual oddball task in older adults - Steiner, Genevieve Z. ELSEVIER, 2016, Amsterdam |
|---|---|
| Übergeordnetes Werk: |
volume:723 ; year:2013 ; number:4 ; day:25 ; month:06 ; pages:330-339 ; extent:10 |
| Links: |
|---|
| DOI / URN: |
10.1016/j.physletb.2013.05.019 |
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ELV01157433X |
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| 520 | |a We study several sources of theoretical uncertainty in the determination of parton distributions (PDFs) which may affect current PDF sets used for precision physics at the Large Hadron Collider, and explain discrepancies between them. We consider in particular the use of fixed-flavor versus variable-flavor number renormalization schemes, higher twist corrections, and nuclear corrections. We perform our study in the framework of the NNPDF2.3 global PDF determination, by quantifying in each case the impact of different theoretical assumptions on the output PDFs. We also study in each case the implications for benchmark cross sections at the LHC. We find that the impact in a global fit of a fixed-flavor number scheme is substantial, the impact of higher twists is negligible, and the impact of nuclear corrections is moderate and circumscribed. | ||
| 520 | |a We study several sources of theoretical uncertainty in the determination of parton distributions (PDFs) which may affect current PDF sets used for precision physics at the Large Hadron Collider, and explain discrepancies between them. We consider in particular the use of fixed-flavor versus variable-flavor number renormalization schemes, higher twist corrections, and nuclear corrections. We perform our study in the framework of the NNPDF2.3 global PDF determination, by quantifying in each case the impact of different theoretical assumptions on the output PDFs. We also study in each case the implications for benchmark cross sections at the LHC. We find that the impact in a global fit of a fixed-flavor number scheme is substantial, the impact of higher twists is negligible, and the impact of nuclear corrections is moderate and circumscribed. | ||
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| 700 | 1 | |a Forte, Stefano |4 oth | |
| 700 | 1 | |a Guffanti, Alberto |4 oth | |
| 700 | 1 | |a Rojo, Juan |4 oth | |
| 700 | 1 | |a Ubiali, Maria |4 oth | |
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10.1016/j.physletb.2013.05.019 doi GBVA2013011000027.pica (DE-627)ELV01157433X (ELSEVIER)S0370-2693(13)00388-2 DE-627 ger DE-627 rakwb eng 530 DE-600 610 VZ 77.50 bkl Ball, Richard D. verfasserin aut Theoretical issues in PDF determination and associated uncertainties 2013transfer abstract 10 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier We study several sources of theoretical uncertainty in the determination of parton distributions (PDFs) which may affect current PDF sets used for precision physics at the Large Hadron Collider, and explain discrepancies between them. We consider in particular the use of fixed-flavor versus variable-flavor number renormalization schemes, higher twist corrections, and nuclear corrections. We perform our study in the framework of the NNPDF2.3 global PDF determination, by quantifying in each case the impact of different theoretical assumptions on the output PDFs. We also study in each case the implications for benchmark cross sections at the LHC. We find that the impact in a global fit of a fixed-flavor number scheme is substantial, the impact of higher twists is negligible, and the impact of nuclear corrections is moderate and circumscribed. We study several sources of theoretical uncertainty in the determination of parton distributions (PDFs) which may affect current PDF sets used for precision physics at the Large Hadron Collider, and explain discrepancies between them. We consider in particular the use of fixed-flavor versus variable-flavor number renormalization schemes, higher twist corrections, and nuclear corrections. We perform our study in the framework of the NNPDF2.3 global PDF determination, by quantifying in each case the impact of different theoretical assumptions on the output PDFs. We also study in each case the implications for benchmark cross sections at the LHC. We find that the impact in a global fit of a fixed-flavor number scheme is substantial, the impact of higher twists is negligible, and the impact of nuclear corrections is moderate and circumscribed. Bertone, Valerio oth Del Debbio, Luigi oth Forte, Stefano oth Guffanti, Alberto oth Rojo, Juan oth Ubiali, Maria oth Enthalten in North-Holland Publ Steiner, Genevieve Z. ELSEVIER Applying the Go/NoGo processing schema to a visual oddball task in older adults 2016 Amsterdam (DE-627)ELV000151122 volume:723 year:2013 number:4 day:25 month:06 pages:330-339 extent:10 https://doi.org/10.1016/j.physletb.2013.05.019 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 77.50 Psychophysiologie VZ AR 723 2013 4 25 0625 330-339 10 |
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10.1016/j.physletb.2013.05.019 doi GBVA2013011000027.pica (DE-627)ELV01157433X (ELSEVIER)S0370-2693(13)00388-2 DE-627 ger DE-627 rakwb eng 530 DE-600 610 VZ 77.50 bkl Ball, Richard D. verfasserin aut Theoretical issues in PDF determination and associated uncertainties 2013transfer abstract 10 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier We study several sources of theoretical uncertainty in the determination of parton distributions (PDFs) which may affect current PDF sets used for precision physics at the Large Hadron Collider, and explain discrepancies between them. We consider in particular the use of fixed-flavor versus variable-flavor number renormalization schemes, higher twist corrections, and nuclear corrections. We perform our study in the framework of the NNPDF2.3 global PDF determination, by quantifying in each case the impact of different theoretical assumptions on the output PDFs. We also study in each case the implications for benchmark cross sections at the LHC. We find that the impact in a global fit of a fixed-flavor number scheme is substantial, the impact of higher twists is negligible, and the impact of nuclear corrections is moderate and circumscribed. We study several sources of theoretical uncertainty in the determination of parton distributions (PDFs) which may affect current PDF sets used for precision physics at the Large Hadron Collider, and explain discrepancies between them. We consider in particular the use of fixed-flavor versus variable-flavor number renormalization schemes, higher twist corrections, and nuclear corrections. We perform our study in the framework of the NNPDF2.3 global PDF determination, by quantifying in each case the impact of different theoretical assumptions on the output PDFs. We also study in each case the implications for benchmark cross sections at the LHC. We find that the impact in a global fit of a fixed-flavor number scheme is substantial, the impact of higher twists is negligible, and the impact of nuclear corrections is moderate and circumscribed. Bertone, Valerio oth Del Debbio, Luigi oth Forte, Stefano oth Guffanti, Alberto oth Rojo, Juan oth Ubiali, Maria oth Enthalten in North-Holland Publ Steiner, Genevieve Z. ELSEVIER Applying the Go/NoGo processing schema to a visual oddball task in older adults 2016 Amsterdam (DE-627)ELV000151122 volume:723 year:2013 number:4 day:25 month:06 pages:330-339 extent:10 https://doi.org/10.1016/j.physletb.2013.05.019 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 77.50 Psychophysiologie VZ AR 723 2013 4 25 0625 330-339 10 |
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10.1016/j.physletb.2013.05.019 doi GBVA2013011000027.pica (DE-627)ELV01157433X (ELSEVIER)S0370-2693(13)00388-2 DE-627 ger DE-627 rakwb eng 530 DE-600 610 VZ 77.50 bkl Ball, Richard D. verfasserin aut Theoretical issues in PDF determination and associated uncertainties 2013transfer abstract 10 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier We study several sources of theoretical uncertainty in the determination of parton distributions (PDFs) which may affect current PDF sets used for precision physics at the Large Hadron Collider, and explain discrepancies between them. We consider in particular the use of fixed-flavor versus variable-flavor number renormalization schemes, higher twist corrections, and nuclear corrections. We perform our study in the framework of the NNPDF2.3 global PDF determination, by quantifying in each case the impact of different theoretical assumptions on the output PDFs. We also study in each case the implications for benchmark cross sections at the LHC. We find that the impact in a global fit of a fixed-flavor number scheme is substantial, the impact of higher twists is negligible, and the impact of nuclear corrections is moderate and circumscribed. We study several sources of theoretical uncertainty in the determination of parton distributions (PDFs) which may affect current PDF sets used for precision physics at the Large Hadron Collider, and explain discrepancies between them. We consider in particular the use of fixed-flavor versus variable-flavor number renormalization schemes, higher twist corrections, and nuclear corrections. We perform our study in the framework of the NNPDF2.3 global PDF determination, by quantifying in each case the impact of different theoretical assumptions on the output PDFs. We also study in each case the implications for benchmark cross sections at the LHC. We find that the impact in a global fit of a fixed-flavor number scheme is substantial, the impact of higher twists is negligible, and the impact of nuclear corrections is moderate and circumscribed. Bertone, Valerio oth Del Debbio, Luigi oth Forte, Stefano oth Guffanti, Alberto oth Rojo, Juan oth Ubiali, Maria oth Enthalten in North-Holland Publ Steiner, Genevieve Z. ELSEVIER Applying the Go/NoGo processing schema to a visual oddball task in older adults 2016 Amsterdam (DE-627)ELV000151122 volume:723 year:2013 number:4 day:25 month:06 pages:330-339 extent:10 https://doi.org/10.1016/j.physletb.2013.05.019 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 77.50 Psychophysiologie VZ AR 723 2013 4 25 0625 330-339 10 |
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10.1016/j.physletb.2013.05.019 doi GBVA2013011000027.pica (DE-627)ELV01157433X (ELSEVIER)S0370-2693(13)00388-2 DE-627 ger DE-627 rakwb eng 530 DE-600 610 VZ 77.50 bkl Ball, Richard D. verfasserin aut Theoretical issues in PDF determination and associated uncertainties 2013transfer abstract 10 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier We study several sources of theoretical uncertainty in the determination of parton distributions (PDFs) which may affect current PDF sets used for precision physics at the Large Hadron Collider, and explain discrepancies between them. We consider in particular the use of fixed-flavor versus variable-flavor number renormalization schemes, higher twist corrections, and nuclear corrections. We perform our study in the framework of the NNPDF2.3 global PDF determination, by quantifying in each case the impact of different theoretical assumptions on the output PDFs. We also study in each case the implications for benchmark cross sections at the LHC. We find that the impact in a global fit of a fixed-flavor number scheme is substantial, the impact of higher twists is negligible, and the impact of nuclear corrections is moderate and circumscribed. We study several sources of theoretical uncertainty in the determination of parton distributions (PDFs) which may affect current PDF sets used for precision physics at the Large Hadron Collider, and explain discrepancies between them. We consider in particular the use of fixed-flavor versus variable-flavor number renormalization schemes, higher twist corrections, and nuclear corrections. We perform our study in the framework of the NNPDF2.3 global PDF determination, by quantifying in each case the impact of different theoretical assumptions on the output PDFs. We also study in each case the implications for benchmark cross sections at the LHC. We find that the impact in a global fit of a fixed-flavor number scheme is substantial, the impact of higher twists is negligible, and the impact of nuclear corrections is moderate and circumscribed. Bertone, Valerio oth Del Debbio, Luigi oth Forte, Stefano oth Guffanti, Alberto oth Rojo, Juan oth Ubiali, Maria oth Enthalten in North-Holland Publ Steiner, Genevieve Z. ELSEVIER Applying the Go/NoGo processing schema to a visual oddball task in older adults 2016 Amsterdam (DE-627)ELV000151122 volume:723 year:2013 number:4 day:25 month:06 pages:330-339 extent:10 https://doi.org/10.1016/j.physletb.2013.05.019 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 77.50 Psychophysiologie VZ AR 723 2013 4 25 0625 330-339 10 |
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10.1016/j.physletb.2013.05.019 doi GBVA2013011000027.pica (DE-627)ELV01157433X (ELSEVIER)S0370-2693(13)00388-2 DE-627 ger DE-627 rakwb eng 530 DE-600 610 VZ 77.50 bkl Ball, Richard D. verfasserin aut Theoretical issues in PDF determination and associated uncertainties 2013transfer abstract 10 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier We study several sources of theoretical uncertainty in the determination of parton distributions (PDFs) which may affect current PDF sets used for precision physics at the Large Hadron Collider, and explain discrepancies between them. We consider in particular the use of fixed-flavor versus variable-flavor number renormalization schemes, higher twist corrections, and nuclear corrections. We perform our study in the framework of the NNPDF2.3 global PDF determination, by quantifying in each case the impact of different theoretical assumptions on the output PDFs. We also study in each case the implications for benchmark cross sections at the LHC. We find that the impact in a global fit of a fixed-flavor number scheme is substantial, the impact of higher twists is negligible, and the impact of nuclear corrections is moderate and circumscribed. We study several sources of theoretical uncertainty in the determination of parton distributions (PDFs) which may affect current PDF sets used for precision physics at the Large Hadron Collider, and explain discrepancies between them. We consider in particular the use of fixed-flavor versus variable-flavor number renormalization schemes, higher twist corrections, and nuclear corrections. We perform our study in the framework of the NNPDF2.3 global PDF determination, by quantifying in each case the impact of different theoretical assumptions on the output PDFs. We also study in each case the implications for benchmark cross sections at the LHC. We find that the impact in a global fit of a fixed-flavor number scheme is substantial, the impact of higher twists is negligible, and the impact of nuclear corrections is moderate and circumscribed. Bertone, Valerio oth Del Debbio, Luigi oth Forte, Stefano oth Guffanti, Alberto oth Rojo, Juan oth Ubiali, Maria oth Enthalten in North-Holland Publ Steiner, Genevieve Z. ELSEVIER Applying the Go/NoGo processing schema to a visual oddball task in older adults 2016 Amsterdam (DE-627)ELV000151122 volume:723 year:2013 number:4 day:25 month:06 pages:330-339 extent:10 https://doi.org/10.1016/j.physletb.2013.05.019 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 77.50 Psychophysiologie VZ AR 723 2013 4 25 0625 330-339 10 |
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Ball, Richard D. |
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Elektronische Aufsätze |
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Ball, Richard D. |
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10.1016/j.physletb.2013.05.019 |
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530 610 |
| title_sort |
theoretical issues in pdf determination and associated uncertainties |
| title_auth |
Theoretical issues in PDF determination and associated uncertainties |
| abstract |
We study several sources of theoretical uncertainty in the determination of parton distributions (PDFs) which may affect current PDF sets used for precision physics at the Large Hadron Collider, and explain discrepancies between them. We consider in particular the use of fixed-flavor versus variable-flavor number renormalization schemes, higher twist corrections, and nuclear corrections. We perform our study in the framework of the NNPDF2.3 global PDF determination, by quantifying in each case the impact of different theoretical assumptions on the output PDFs. We also study in each case the implications for benchmark cross sections at the LHC. We find that the impact in a global fit of a fixed-flavor number scheme is substantial, the impact of higher twists is negligible, and the impact of nuclear corrections is moderate and circumscribed. |
| abstractGer |
We study several sources of theoretical uncertainty in the determination of parton distributions (PDFs) which may affect current PDF sets used for precision physics at the Large Hadron Collider, and explain discrepancies between them. We consider in particular the use of fixed-flavor versus variable-flavor number renormalization schemes, higher twist corrections, and nuclear corrections. We perform our study in the framework of the NNPDF2.3 global PDF determination, by quantifying in each case the impact of different theoretical assumptions on the output PDFs. We also study in each case the implications for benchmark cross sections at the LHC. We find that the impact in a global fit of a fixed-flavor number scheme is substantial, the impact of higher twists is negligible, and the impact of nuclear corrections is moderate and circumscribed. |
| abstract_unstemmed |
We study several sources of theoretical uncertainty in the determination of parton distributions (PDFs) which may affect current PDF sets used for precision physics at the Large Hadron Collider, and explain discrepancies between them. We consider in particular the use of fixed-flavor versus variable-flavor number renormalization schemes, higher twist corrections, and nuclear corrections. We perform our study in the framework of the NNPDF2.3 global PDF determination, by quantifying in each case the impact of different theoretical assumptions on the output PDFs. We also study in each case the implications for benchmark cross sections at the LHC. We find that the impact in a global fit of a fixed-flavor number scheme is substantial, the impact of higher twists is negligible, and the impact of nuclear corrections is moderate and circumscribed. |
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Theoretical issues in PDF determination and associated uncertainties |
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https://doi.org/10.1016/j.physletb.2013.05.019 |
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Bertone, Valerio Del Debbio, Luigi Forte, Stefano Guffanti, Alberto Rojo, Juan Ubiali, Maria |
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Bertone, Valerio Del Debbio, Luigi Forte, Stefano Guffanti, Alberto Rojo, Juan Ubiali, Maria |
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