AAMQS: A non-linear QCD analysis of new HERA data at small-x including heavy quarks
We present a global analysis of available data on inclusive structure functions and reduced cross sections measured in electron–proton scattering at small values of Bjorken- x , x
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| Veröffentlicht in: | The European physical journal. C, Particles and fields Particles and fields, 2011-07, Vol.71 (7), p.1-11, Article 1705 |
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| container_title | The European physical journal. C, Particles and fields |
| container_volume | 71 |
| creator | Albacete, Javier L. Armesto, Néstor Milhano, José Guilherme Quiroga Arias, Paloma Salgado, Carlos A. |
| description | We present a global analysis of available data on inclusive structure functions and reduced cross sections measured in electron–proton scattering at small values of Bjorken-
x
,
x |
| doi_str_mv | 10.1140/epjc/s10052-011-1705-3 |
| format | Article |
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x
,
x
<0.01, including the latest data from HERA on reduced cross sections. Our approach relies on the dipole formulation of DIS together with the use of the non-linear running coupling Balitsky–Kovchegov equation for the description of the small-
x
dynamics. We improve our previous studies by including the heavy quark (charm and beauty) contribution to the reduced cross sections, and also by considering a variable flavor scheme for the running of the coupling. We obtain a good description of the data, with the fit parameters remaining stable with respect to our previous analyses where only light quarks were considered. The inclusion of the heavy quark contributions resulted in a good description of available experimental data for the charm component of the structure function and reduced cross section provided the initial transverse distribution of heavy quarks was allowed to differ from (more specifically, to have a smaller radius than) that of the light flavors.</description><identifier>ISSN: 1434-6044</identifier><identifier>EISSN: 1434-6052</identifier><identifier>DOI: 10.1140/epjc/s10052-011-1705-3</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer-Verlag</publisher><subject>Astronomy ; Astrophysics and Cosmology ; Charm (particle physics) ; Coupling ; Cross sections ; Dipoles ; Elementary Particles ; Exact sciences and technology ; Flavor (particle physics) ; Hadrons ; Heavy Ions ; Joining ; Mathematical analysis ; Measurement Science and Instrumentation ; Nonlinear analysis ; Nonlinearity ; Nuclear Energy ; Nuclear Physics ; Physics ; Physics and Astronomy ; Proton scattering ; Quantum chromodynamics ; Quantum Field Theories ; Quantum Field Theory ; Quarks ; Regular Article - Theoretical Physics ; Running ; String Theory ; The physics of elementary particles and fields</subject><ispartof>The European physical journal. C, Particles and fields, 2011-07, Vol.71 (7), p.1-11, Article 1705</ispartof><rights>Springer-Verlag / Società Italiana di Fisica 2011</rights><rights>2015 INIST-CNRS</rights><rights>COPYRIGHT 2011 Springer</rights><rights>The European Physical Journal C is a copyright of Springer, (2011). All Rights Reserved.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c602t-a478c4fe57919a834e22bcf33da9f66dbf9aec218f1e3e3b67eeb37d26816dcf3</citedby><cites>FETCH-LOGICAL-c602t-a478c4fe57919a834e22bcf33da9f66dbf9aec218f1e3e3b67eeb37d26816dcf3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1140/epjc/s10052-011-1705-3$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://doi.org/10.1140/epjc/s10052-011-1705-3$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41120,41488,42189,42557,51319,51576</link.rule.ids><linktorsrc>$$Uhttps://doi.org/10.1140/epjc/s10052-011-1705-3$$EView_record_in_Springer_Nature$$FView_record_in_$$GSpringer_Nature</linktorsrc><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=24501886$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Albacete, Javier L.</creatorcontrib><creatorcontrib>Armesto, Néstor</creatorcontrib><creatorcontrib>Milhano, José Guilherme</creatorcontrib><creatorcontrib>Quiroga Arias, Paloma</creatorcontrib><creatorcontrib>Salgado, Carlos A.</creatorcontrib><title>AAMQS: A non-linear QCD analysis of new HERA data at small-x including heavy quarks</title><title>The European physical journal. C, Particles and fields</title><addtitle>Eur. Phys. J. C</addtitle><description>We present a global analysis of available data on inclusive structure functions and reduced cross sections measured in electron–proton scattering at small values of Bjorken-
x
,
x
<0.01, including the latest data from HERA on reduced cross sections. Our approach relies on the dipole formulation of DIS together with the use of the non-linear running coupling Balitsky–Kovchegov equation for the description of the small-
x
dynamics. We improve our previous studies by including the heavy quark (charm and beauty) contribution to the reduced cross sections, and also by considering a variable flavor scheme for the running of the coupling. We obtain a good description of the data, with the fit parameters remaining stable with respect to our previous analyses where only light quarks were considered. 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Armesto, Néstor ; Milhano, José Guilherme ; Quiroga Arias, Paloma ; Salgado, Carlos A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c602t-a478c4fe57919a834e22bcf33da9f66dbf9aec218f1e3e3b67eeb37d26816dcf3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Astronomy</topic><topic>Astrophysics and Cosmology</topic><topic>Charm (particle physics)</topic><topic>Coupling</topic><topic>Cross sections</topic><topic>Dipoles</topic><topic>Elementary Particles</topic><topic>Exact sciences and technology</topic><topic>Flavor (particle physics)</topic><topic>Hadrons</topic><topic>Heavy Ions</topic><topic>Joining</topic><topic>Mathematical analysis</topic><topic>Measurement Science and Instrumentation</topic><topic>Nonlinear analysis</topic><topic>Nonlinearity</topic><topic>Nuclear Energy</topic><topic>Nuclear Physics</topic><topic>Physics</topic><topic>Physics and Astronomy</topic><topic>Proton scattering</topic><topic>Quantum chromodynamics</topic><topic>Quantum Field Theories</topic><topic>Quantum Field Theory</topic><topic>Quarks</topic><topic>Regular Article - Theoretical Physics</topic><topic>Running</topic><topic>String Theory</topic><topic>The physics of elementary particles and fields</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Albacete, Javier L.</creatorcontrib><creatorcontrib>Armesto, Néstor</creatorcontrib><creatorcontrib>Milhano, José Guilherme</creatorcontrib><creatorcontrib>Quiroga Arias, Paloma</creatorcontrib><creatorcontrib>Salgado, Carlos A.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Gale In Context: Science</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>Advanced Technologies & Aerospace Collection</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>Aerospace Database</collection><collection>SciTech Premium Collection</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Advanced Technologies & Aerospace Database</collection><collection>ProQuest Advanced Technologies & Aerospace Collection</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><jtitle>The European physical journal. 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x
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x
<0.01, including the latest data from HERA on reduced cross sections. Our approach relies on the dipole formulation of DIS together with the use of the non-linear running coupling Balitsky–Kovchegov equation for the description of the small-
x
dynamics. We improve our previous studies by including the heavy quark (charm and beauty) contribution to the reduced cross sections, and also by considering a variable flavor scheme for the running of the coupling. We obtain a good description of the data, with the fit parameters remaining stable with respect to our previous analyses where only light quarks were considered. The inclusion of the heavy quark contributions resulted in a good description of available experimental data for the charm component of the structure function and reduced cross section provided the initial transverse distribution of heavy quarks was allowed to differ from (more specifically, to have a smaller radius than) that of the light flavors.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer-Verlag</pub><doi>10.1140/epjc/s10052-011-1705-3</doi><tpages>11</tpages><oa>free_for_read</oa></addata></record> |
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| identifier | ISSN: 1434-6044 |
| ispartof | The European physical journal. C, Particles and fields, 2011-07, Vol.71 (7), p.1-11, Article 1705 |
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| source | Springer Nature OA Free Journals |
| subjects | Astronomy Astrophysics and Cosmology Charm (particle physics) Coupling Cross sections Dipoles Elementary Particles Exact sciences and technology Flavor (particle physics) Hadrons Heavy Ions Joining Mathematical analysis Measurement Science and Instrumentation Nonlinear analysis Nonlinearity Nuclear Energy Nuclear Physics Physics Physics and Astronomy Proton scattering Quantum chromodynamics Quantum Field Theories Quantum Field Theory Quarks Regular Article - Theoretical Physics Running String Theory The physics of elementary particles and fields |
| title | AAMQS: A non-linear QCD analysis of new HERA data at small-x including heavy quarks |
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