Linear vs non-linear QCD evolution: from HERA data to LHC phenomenology

J. L. Albacete; J. G. Milhano; P. Quiroga-Arias; J. Rojo

doi:10.1140/epjc/s10052-012-2131-x

Linear vs non-linear QCD evolution: from HERA data to LHC phenomenology

J. L. Albacete, J. G. Milhano, P. Quiroga-Arias, J. Rojo

(Astro)-Particles Physics

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

170 Downloads (Pure)

Abstract

The very precise combined HERA data provides a testing ground in which the relevance of novel QCD regimes, other than the successful linear DGLAP evolution, in small-x inclusive DIS data can be ascertained. We present a study of the dependence of the AAMQS fits, based on the running coupling BK non-linear evolution equations (rcBK), on the fitted dataset. This allows for the identification of the kinematical region where rcBK accurately describes the data, and thus for the determination of its applicability boundary. We compare the rcBK results with NNLO DGLAP fits, obtained with the NNPDF methodology with analogous kinematical cuts. Further, we explore the impact on LHC phenomenology of applying stringent kinematical cuts to the low-x HERA data in a DGLAP fit.

Original language	English
Pages (from-to)	2131
Number of pages	1
Journal	European Physical Journal C. Particles and Fields
Volume	C72
DOIs	https://doi.org/10.1140/epjc/s10052-012-2131-x
Publication status	Published - 5 Mar 2012

Bibliographical note

20 pages, 10 figures, simplified discussion of stability of fits

Keywords

hep-ph
hep-ex

Access to Document

10.1140/epjc/s10052-012-2131-x

pdf

Handle.net

Persistent link

Cite this

@article{bf60cce0c3db4973b739c397a1c510d4,

title = "Linear vs non-linear QCD evolution: from HERA data to LHC phenomenology",

abstract = "The very precise combined HERA data provides a testing ground in which the relevance of novel QCD regimes, other than the successful linear DGLAP evolution, in small-x inclusive DIS data can be ascertained. We present a study of the dependence of the AAMQS fits, based on the running coupling BK non-linear evolution equations (rcBK), on the fitted dataset. This allows for the identification of the kinematical region where rcBK accurately describes the data, and thus for the determination of its applicability boundary. We compare the rcBK results with NNLO DGLAP fits, obtained with the NNPDF methodology with analogous kinematical cuts. Further, we explore the impact on LHC phenomenology of applying stringent kinematical cuts to the low-x HERA data in a DGLAP fit.",

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

author = "Albacete, {J. L.} and Milhano, {J. G.} and P. Quiroga-Arias and J. Rojo",

note = "20 pages, 10 figures, simplified discussion of stability of fits",

year = "2012",

month = mar,

day = "5",

doi = "10.1140/epjc/s10052-012-2131-x",

language = "English",

volume = "C72",

pages = "2131",

journal = "European Physical Journal C. Particles and Fields",

issn = "1434-6044",

publisher = "Springer New York",

}

TY - JOUR

T1 - Linear vs non-linear QCD evolution

T2 - from HERA data to LHC phenomenology

AU - Albacete, J. L.

AU - Milhano, J. G.

AU - Quiroga-Arias, P.

AU - Rojo, J.

N1 - 20 pages, 10 figures, simplified discussion of stability of fits

PY - 2012/3/5

Y1 - 2012/3/5

N2 - The very precise combined HERA data provides a testing ground in which the relevance of novel QCD regimes, other than the successful linear DGLAP evolution, in small-x inclusive DIS data can be ascertained. We present a study of the dependence of the AAMQS fits, based on the running coupling BK non-linear evolution equations (rcBK), on the fitted dataset. This allows for the identification of the kinematical region where rcBK accurately describes the data, and thus for the determination of its applicability boundary. We compare the rcBK results with NNLO DGLAP fits, obtained with the NNPDF methodology with analogous kinematical cuts. Further, we explore the impact on LHC phenomenology of applying stringent kinematical cuts to the low-x HERA data in a DGLAP fit.

AB - The very precise combined HERA data provides a testing ground in which the relevance of novel QCD regimes, other than the successful linear DGLAP evolution, in small-x inclusive DIS data can be ascertained. We present a study of the dependence of the AAMQS fits, based on the running coupling BK non-linear evolution equations (rcBK), on the fitted dataset. This allows for the identification of the kinematical region where rcBK accurately describes the data, and thus for the determination of its applicability boundary. We compare the rcBK results with NNLO DGLAP fits, obtained with the NNPDF methodology with analogous kinematical cuts. Further, we explore the impact on LHC phenomenology of applying stringent kinematical cuts to the low-x HERA data in a DGLAP fit.

KW - hep-ph

KW - hep-ex

U2 - 10.1140/epjc/s10052-012-2131-x

DO - 10.1140/epjc/s10052-012-2131-x

M3 - Article

VL - C72

SP - 2131

JO - European Physical Journal C. Particles and Fields

JF - European Physical Journal C. Particles and Fields

SN - 1434-6044

ER -

Linear vs non-linear QCD evolution: from HERA data to LHC phenomenology

Abstract

Bibliographical note

Keywords

Access to Document

Handle.net

Fingerprint

Cite this