Zobrazeno 1 - 10
of 24
pro vyhledávání: '"L. A. Harland-Lang"'
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 84, Iss 10, Pp 1-17 (2024)
Abstract We present the first determination of the value of the strong coupling via a simultaneous global fit of the proton parton distribution functions (PDFs) at approximate $$\textrm{N}^3$$ N 3 LO (a $$\textrm{N}^3$$ N 3 LO) order in QCD. This mak
Externí odkaz:
https://doaj.org/article/a763b422db5e447080de6a50fec872c0
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 84, Iss 4, Pp 1-26 (2024)
Abstract We present an analysis of two key sets of data constraining the high x gluon at up to approximate N $${}^3$$ 3 LO in QCD within the MSHT global PDF fitting framework. We begin with LHC 7 and 8 TeV inclusive jet and dijet production at both N
Externí odkaz:
https://doaj.org/article/d2a8b58a594c42a2aa5d1c4d79a5a0e7
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 83, Iss 3, Pp 1-108 (2023)
Abstract We present the first global analysis of parton distribution functions (PDFs) at approximate N $$^{3}$$ 3 LO in the strong coupling constant $$\alpha _{s}$$ α s , extending beyond the current highest NNLO achieved in PDF fits. To achieve thi
Externí odkaz:
https://doaj.org/article/21cd20bdf08e4c159df32fc54e895897
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 82, Iss 1, Pp 1-15 (2022)
Abstract We present the MSHT20qed set of parton distribution functions (PDFs). These are obtained from the MSHT20 global analysis via a refit including QED corrections to the DGLAP evolution at $${{{\mathcal {O}}}}(\alpha ),{{{\mathcal {O}}}}(\alpha
Externí odkaz:
https://doaj.org/article/69bb5c782cbf41b2b68a4726d8ea7e11
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 81, Iss 8, Pp 1-29 (2021)
Abstract We investigate the MSHT20 global PDF sets, demonstrating the effects of varying the strong coupling $$\alpha _S(M_Z^2)$$ α S ( M Z 2 ) and the masses of the charm and bottom quarks. We determine the preferred value, and accompanying uncerta
Externí odkaz:
https://doaj.org/article/0d10b49af0a442f0a6a421875e2dae6a
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 81, Iss 4, Pp 1-88 (2021)
Abstract We present the new MSHT20 set of parton distribution functions (PDFs) of the proton, determined from global analyses of the available hard scattering data. The PDFs are made available at NNLO, NLO, and LO, and supersede the MMHT14 sets. They
Externí odkaz:
https://doaj.org/article/9a46be61d70049f484ad887c9622b82c
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 83, Iss 4, Pp 1-1 (2023)
Externí odkaz:
https://doaj.org/article/84d11da8fd264931864ae57d27eeb2cb
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 80, Iss 10, Pp 1-14 (2020)
Abstract We present the results of the new SuperChic 4 Monte Carlo implementation of photon-initiated production in proton–proton collisions, considering as a first example the case of lepton pair production. This is based on the structure function
Externí odkaz:
https://doaj.org/article/014e83ca858b4bfa85c5396ebcac4147
Autor:
S. Bailey, L. A. Harland-Lang
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 80, Iss 1, Pp 1-13 (2020)
Abstract We present the results of a PDF fit to differential top quark production within the MMHT framework. We in particular consider ATLAS data in the lepton + jet and dilepton channels and CMS data in the lepton + jet channel, at 8 TeV. While the
Externí odkaz:
https://doaj.org/article/c0ae059048ed48cbb062d9204b145bfb
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 79, Iss 10, Pp 1-32 (2019)
Abstract We present the MMHT2015qed PDF set, resulting from the inclusion of QED corrections to the existing set of MMHT Parton Distribution Functions (PDFs), and which contain the photon PDF of the proton. Adopting an input distribution from the LUX
Externí odkaz:
https://doaj.org/article/540d826c14c24e4a9e1573f75342ffe2