New parton distribution functions from a global analysis of quantum chromodynamics
We present new parton distribution functions (PDFs) at next-to-next-to-leading order (NNLO) from the CTEQ-TEA global analysis of quantum chromodynamics. These differ from previous CT PDFs in several respects, including the use of data from LHC experiments and the new D0 charged-lepton rapidity asymm...
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| Veröffentlicht in: | Physical review. D 2016-02, Vol.93 (3), Article 033006 |
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| container_title | Physical review. D |
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| creator | Dulat, Sayipjamal Hou, Tie-Jiun Gao, Jun Guzzi, Marco Huston, Joey Nadolsky, Pavel Pumplin, Jon Schmidt, Carl Stump, Daniel Yuan, C.-P. |
| description | We present new parton distribution functions (PDFs) at next-to-next-to-leading order (NNLO) from the CTEQ-TEA global analysis of quantum chromodynamics. These differ from previous CT PDFs in several respects, including the use of data from LHC experiments and the new D0 charged-lepton rapidity asymmetry data, as well as the use of a more flexible parametrization of PDFs that, in particular, allows a better fit to different combinations of quark flavors. Predictions for important LHC processes, especially Higgs boson production at 13 TeV, are presented. These CT14 PDFs include a central set and error sets in the Hessian representation. For completeness, we also present the CT14 PDFs determined at the LO and the NLO in QCD. Besides these general-purpose PDF sets, we provide a series of (N)NLO sets with various alpha sub()svalues and additional sets in general-mass variable flavor number schemes, to deal with heavy partons, with up to three, four, and six active flavors |
| doi_str_mv | 10.1103/PhysRevD.93.033006 |
| format | Article |
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D</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Dulat, Sayipjamal</au><au>Hou, Tie-Jiun</au><au>Gao, Jun</au><au>Guzzi, Marco</au><au>Huston, Joey</au><au>Nadolsky, Pavel</au><au>Pumplin, Jon</au><au>Schmidt, Carl</au><au>Stump, Daniel</au><au>Yuan, C.-P.</au><aucorp>Southern Methodist Univ., Dallas, TX (United States)</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>New parton distribution functions from a global analysis of quantum chromodynamics</atitle><jtitle>Physical review. D</jtitle><date>2016-02-16</date><risdate>2016</risdate><volume>93</volume><issue>3</issue><artnum>033006</artnum><issn>2470-0010</issn><eissn>2470-0029</eissn><abstract>We present new parton distribution functions (PDFs) at next-to-next-to-leading order (NNLO) from the CTEQ-TEA global analysis of quantum chromodynamics. 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| source | American Physical Society Journals |
| subjects | Asymmetry Cosmology Distribution functions Flavours Large Hadron Collider Partons PHYSICS OF ELEMENTARY PARTICLES AND FIELDS Portable document format Quantum chromodynamics |
| title | New parton distribution functions from a global analysis of quantum chromodynamics |
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