Doped Parton Distributions

Valerio Bertone; Stefano Carrazza; Juan Rojo

Doped Parton Distributions

Valerio Bertone, Stefano Carrazza, Juan Rojo

(Astro)-Particles Physics

Research output: Contribution to Journal › Article › Academic › peer-review

Abstract

Calculations of high-energy processes involving the production of b-quarks are typically performed in two different ways, the massive four-flavour scheme (4FS) and the massless five-flavour scheme (5FS). For processes where the combination of the 4FS and 5FS results into a matched calculation is technically difficult, it is possible to define a hybrid scheme known as the doped scheme, where above the b-quark threshold the strong coupling runs with $n_f=5$, as in the massless calculation, while the DGLAP splitting functions are those of the $n_f=4$ scheme. In this contribution we present NNPDF3.0 PDF sets in this doped scheme, compare them with the corresponding 4FS and 5FS sets, and discuss their relevance for LHC phenomenology.

Original language	English
Journal	arXiv
Publication status	Published - 14 Sept 2015

Bibliographical note

5 pages, 5 figures, to appear in the proceedings of the 27th Rencontres de Blois on Particle Physics and Cosmology, Blois, May 31 to June 05, 2015

Keywords

hep-ph
hep-ex

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Persistent URL (handle)

Copy link address

Cite this

@article{734f1bb912d4482fae74c39ec71f616f,

title = "Doped Parton Distributions",

abstract = "Calculations of high-energy processes involving the production of b-quarks are typically performed in two different ways, the massive four-flavour scheme (4FS) and the massless five-flavour scheme (5FS). For processes where the combination of the 4FS and 5FS results into a matched calculation is technically difficult, it is possible to define a hybrid scheme known as the doped scheme, where above the b-quark threshold the strong coupling runs with $n_f=5$, as in the massless calculation, while the DGLAP splitting functions are those of the $n_f=4$ scheme. In this contribution we present NNPDF3.0 PDF sets in this doped scheme, compare them with the corresponding 4FS and 5FS sets, and discuss their relevance for LHC phenomenology.",

keywords = "hep-ph, hep-ex",

author = "Valerio Bertone and Stefano Carrazza and Juan Rojo",

note = "5 pages, 5 figures, to appear in the proceedings of the 27th Rencontres de Blois on Particle Physics and Cosmology, Blois, May 31 to June 05, 2015",

year = "2015",

month = sep,

day = "14",

language = "English",

journal = "arXiv",

issn = "2331-8422",

publisher = "Cornell University",

}

TY - JOUR

T1 - Doped Parton Distributions

AU - Bertone, Valerio

AU - Carrazza, Stefano

AU - Rojo, Juan

N1 - 5 pages, 5 figures, to appear in the proceedings of the 27th Rencontres de Blois on Particle Physics and Cosmology, Blois, May 31 to June 05, 2015

PY - 2015/9/14

Y1 - 2015/9/14

N2 - Calculations of high-energy processes involving the production of b-quarks are typically performed in two different ways, the massive four-flavour scheme (4FS) and the massless five-flavour scheme (5FS). For processes where the combination of the 4FS and 5FS results into a matched calculation is technically difficult, it is possible to define a hybrid scheme known as the doped scheme, where above the b-quark threshold the strong coupling runs with $n_f=5$, as in the massless calculation, while the DGLAP splitting functions are those of the $n_f=4$ scheme. In this contribution we present NNPDF3.0 PDF sets in this doped scheme, compare them with the corresponding 4FS and 5FS sets, and discuss their relevance for LHC phenomenology.

AB - Calculations of high-energy processes involving the production of b-quarks are typically performed in two different ways, the massive four-flavour scheme (4FS) and the massless five-flavour scheme (5FS). For processes where the combination of the 4FS and 5FS results into a matched calculation is technically difficult, it is possible to define a hybrid scheme known as the doped scheme, where above the b-quark threshold the strong coupling runs with $n_f=5$, as in the massless calculation, while the DGLAP splitting functions are those of the $n_f=4$ scheme. In this contribution we present NNPDF3.0 PDF sets in this doped scheme, compare them with the corresponding 4FS and 5FS sets, and discuss their relevance for LHC phenomenology.

KW - hep-ph

KW - hep-ex

UR - https://arxiv.org/abs/1509.04022

M3 - Article

SN - 2331-8422

JO - arXiv

JF - arXiv

ER -

Doped Parton Distributions

Abstract

Bibliographical note

Keywords

UN SDGs

Persistent URL (handle)

Other files and links

Fingerprint

Cite this