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SUMMARY:Progress and Challenges in Phenomenological Determination of PDFs
DTSTART;VALUE=DATE-TIME:20261010T010000Z
DTEND;VALUE=DATE-TIME:20261010T013000Z
DTSTAMP;VALUE=DATE-TIME:20261005T092058Z
UID:indico-contribution-2840@indico.itp.ac.cn
DESCRIPTION:Speakers: 可平 谢 (TDLI/SJTU)\nWe present new parton distri
 bution functions (PDFs) at next-to-next-to-leading order (NNLO) from the C
 TEQ-TEA global analysis of quantum chromodynamics. The CT25 PDFs incorpora
 te new data from the LHC  and employ a more flexible parametrization\, ena
 bling improved fits to the various quark flavor combinations. The CT25 PDF
 s include a central set and Hessian error sets. Instead of the combined gl
 obal + dynamic tolerance used in CT18\,  the main CT25 PDF set uses only a
  dynamic tolerance. We also present CT25 PDFs at leading order (LO) and ne
 xt-to-leading order (NLO)\, along with (N)NLO sets for different $\\alpha_
 s$ values\, and PDF4LHC-like sets. Phenomenological implications are discu
 ssed\, with emphasis on Higgs production at the 13 TeV LHC.\n\nhttps://ind
 ico.itp.ac.cn/event/437/contributions/2840/
LOCATION:会议楼2 CXII401
URL:https://indico.itp.ac.cn/event/437/contributions/2840/
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