{"id":173,"date":"2023-10-17T11:58:21","date_gmt":"2023-10-17T11:58:21","guid":{"rendered":"https:\/\/research.hip.fi\/qcdtheory\/?page_id=173"},"modified":"2023-10-23T10:34:45","modified_gmt":"2023-10-23T10:34:45","slug":"epps21","status":"publish","type":"page","link":"https:\/\/research.hip.fi\/qcdtheory\/nuclear-pdfs\/epps21\/","title":{"rendered":"EPPS21"},"content":{"rendered":"<p>EPPS21 NLO nuclear PDFs presented in article:<\/p>\n<ul>\n<li>K.J. Eskola, P. Paakkinen, H. Paukkunen and C.A. Salgado,<br \/>\n&#8220;EPPS21: A global QCD analysis of nuclear PDFs&#8221;<br \/>\nPublished as: <a href=\"https:\/\/link.springer.com\/article\/10.1140\/epjc\/s10052-022-10359-0\" target=\"_blank\" rel=\"noopener\" data-linktype=\"external\" data-val=\"https:\/\/link.springer.com\/article\/10.1140\/epjc\/s10052-022-10359-0\">Eur.Phys.J. C82 (2022), 413<\/a><br \/>\nEprint: <a class=\"external-link\" title=\"EPPS16: Nuclear parton distributions with LHC data\" href=\"https:\/\/arxiv.org\/abs\/2112.12462\" target=\"_blank\" rel=\"noopener noreferrer\" data-linktype=\"external\" data-val=\"https:\/\/arxiv.org\/abs\/2112.12462\">arXiv:2112.12462<\/a><\/li>\n<\/ul>\n<h3>The interface routines (analogue to EPPS16):<\/h3>\n<ul>\n<li>The Fortran driver: EPPS21.f\u00a0 <a href=\"https:\/\/www.dropbox.com\/sh\/8063ibjvdxu59mw\/AADFbvtLjUxMtwqRpzlwmRpBa?dl=0\" target=\"_blank\" rel=\"noopener\" data-linktype=\"external\" data-val=\"https:\/\/www.dropbox.com\/sh\/8063ibjvdxu59mw\/AADFbvtLjUxMtwqRpzlwmRpBa?dl=0\">( Available from here )<\/a><\/li>\n<\/ul>\n<ul>\n<li>The C++ driver: EPPS21.cpp ; EPPS21.h\u00a0 <a href=\"https:\/\/www.dropbox.com\/sh\/8063ibjvdxu59mw\/AADFbvtLjUxMtwqRpzlwmRpBa?dl=0\" target=\"_blank\" rel=\"noopener\" data-linktype=\"external\" data-val=\"https:\/\/www.dropbox.com\/sh\/8063ibjvdxu59mw\/AADFbvtLjUxMtwqRpzlwmRpBa?dl=0\">( Available from here )<\/a><\/li>\n<\/ul>\n<h3>The grid files (A=mass number) :<\/h3>\n<ul>\n<li>A=3: EPPS21NLOR_3\u00a0\u00a0\u00a0\u00a0\u00a0 <a href=\"https:\/\/www.dropbox.com\/sh\/8063ibjvdxu59mw\/AADFbvtLjUxMtwqRpzlwmRpBa?dl=0\" target=\"_blank\" rel=\"noopener\" data-linktype=\"external\" data-val=\"https:\/\/www.dropbox.com\/sh\/8063ibjvdxu59mw\/AADFbvtLjUxMtwqRpzlwmRpBa?dl=0\">( Available from here )<\/a><\/li>\n<li>A=4: EPPS21NLOR_4<\/li>\n<li>A=6: EPPS21NLOR_6<\/li>\n<li>A=9: EPPS21NLOR_9<\/li>\n<li>A=12: EPPS21NLOR_12<\/li>\n<li>A=16: EPPS21NLOR_16<\/li>\n<li>A=20: EPPS21NLOR_20<\/li>\n<li>A=27: EPPS21NLOR_27<\/li>\n<li>A=40: EPPS21NLOR_40<\/li>\n<li>A=56: EPPS21NLOR_56<\/li>\n<li>A=64: EPPS21NLOR_64<\/li>\n<li>A=84: EPPS21NLOR_84<\/li>\n<li>A=108: EPPS21NLOR_108<\/li>\n<li>A=119: EPPS21NLOR_119<\/li>\n<li>A=131: EPPS21NLOR_131<\/li>\n<li>A=184: EPPS21NLOR_184<\/li>\n<li>A=195: EPPS21NLOR_195<\/li>\n<li>A=197: EPPS21NLOR_197<\/li>\n<li>A=208: EPPS21NLOR_208<\/li>\n<\/ul>\n<h3>The LHAPDF files:<\/h3>\n<ul>\n<li>The LHAPDF grids for selected nuclei are available in the official <a class=\"external-link\" title=\"\" href=\"https:\/\/lhapdf.hepforge.org\/\" target=\"_blank\" rel=\"noopener noreferrer\">LHAPDF website<\/a> (also<a href=\"https:\/\/www.dropbox.com\/sh\/d5m49bk89wvafeo\/AACWFHsq3OyIcSClZWkFRRyya?dl=0\" target=\"_blank\" rel=\"noopener\" data-linktype=\"external\" data-val=\"https:\/\/www.dropbox.com\/sh\/d5m49bk89wvafeo\/AACWFHsq3OyIcSClZWkFRRyya?dl=0\"> here<\/a> ). The EPPS21 LHAPDF grids correspond to the <strong>total<\/strong> PDFs of the nuclei (multiplied by x, divided by A) obtained from the free proton PDFs (<a class=\"external-link\" href=\"https:\/\/arxiv.org\/abs\/1912.10053\" target=\"_blank\" rel=\"noopener noreferrer\" data-linktype=\"external\" data-val=\"https:\/\/arxiv.org\/abs\/1912.10053\">CT18ANLO<\/a>) and nuclear modifications as shown below.<\/li>\n<li>For each nucleus, the LHAPDF grids contain 107 members:<\/li>\n<\/ul>\n<p>0 = <strong>Central set<\/strong> of EPPS21 with the central set of CT18ANLO<\/p>\n<p>1&#8230;48 = <strong>Error sets<\/strong> due to uncertainties in nuclear modifications<\/p>\n<p>49&#8230;106 = <strong>Error sets<\/strong> due to uncertainties in baseline proton PDFs<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-222\" src=\"https:\/\/research.hip.fi\/qcdtheory\/wp-content\/uploads\/sites\/2\/2023\/10\/nPDFform-1-245x300.jpeg\" alt=\"\" width=\"500\" height=\"611\" srcset=\"https:\/\/research.hip.fi\/qcdtheory\/wp-content\/uploads\/sites\/2\/2023\/10\/nPDFform-1-245x300.jpeg 245w, https:\/\/research.hip.fi\/qcdtheory\/wp-content\/uploads\/sites\/2\/2023\/10\/nPDFform-1.jpeg 628w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<h3>Questions &amp; comments to:<\/h3>\n<ul>\n<li><span class=\"korostus1\">&#104;&#x61;&#x6e;&#110;&#x75;&#x2e;&#112;&#x61;&#x75;&#107;&#x6b;&#x75;&#110;&#x65;&#x6e;&#64;&#x6a;&#x79;&#117;&#x2e;&#x66;&#105;<\/span><\/li>\n<li><span class=\"korostus1\"> k&#97;&#x72;&#x69;&#46;&#101;&#115;&#x6b;&#x6f;l&#97;&#64;&#x6a;&#x79;u&#46;&#x66;&#x69; <\/span><\/li>\n<li><span class=\"korostus1\"> &#112;&#x65;&#116;&#x6a;&#97;&#x2e;&#107;&#x2e;&#109;&#x2e;&#112;&#x61;&#97;&#x6b;&#107;&#x69;&#110;&#x65;&#110;&#x40;&#106;&#x79;&#117;&#x2e;&#102;&#x69;<\/span><\/li>\n<li><span class=\"korostus1\"> &#99;&#x61;&#x72;&#108;&#x6f;&#x73;&#46;&#x73;&#x61;&#108;&#x67;&#x61;&#100;&#x6f;&#x40;&#117;&#x73;&#x63;&#46;&#x65;&#x73;<\/span><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>EPPS21 NLO nuclear PDFs presented in article: K.J. Eskola, P. Paakkinen, H. Paukkunen and C.A. Salgado, &#8220;EPPS21: A global QCD analysis of nuclear PDFs&#8221; Published as: Eur.Phys.J. C82 (2022), 413 Eprint: arXiv:2112.12462 The interface routines (analogue to EPPS16): The Fortran driver: EPPS21.f\u00a0 ( Available from here ) The C++ driver: EPPS21.cpp ; EPPS21.h\u00a0 ( Available [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":171,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-173","page","type-page","status-publish","hentry","post"],"_links":{"self":[{"href":"https:\/\/research.hip.fi\/qcdtheory\/wp-json\/wp\/v2\/pages\/173","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/research.hip.fi\/qcdtheory\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/research.hip.fi\/qcdtheory\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/research.hip.fi\/qcdtheory\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/research.hip.fi\/qcdtheory\/wp-json\/wp\/v2\/comments?post=173"}],"version-history":[{"count":12,"href":"https:\/\/research.hip.fi\/qcdtheory\/wp-json\/wp\/v2\/pages\/173\/revisions"}],"predecessor-version":[{"id":228,"href":"https:\/\/research.hip.fi\/qcdtheory\/wp-json\/wp\/v2\/pages\/173\/revisions\/228"}],"up":[{"embeddable":true,"href":"https:\/\/research.hip.fi\/qcdtheory\/wp-json\/wp\/v2\/pages\/171"}],"wp:attachment":[{"href":"https:\/\/research.hip.fi\/qcdtheory\/wp-json\/wp\/v2\/media?parent=173"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}