Zobrazeno 1 - 10
of 9 763
pro vyhledávání: '"A. D. Martin"'
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 84, Iss 8, Pp 1-6 (2024)
Abstract We discuss the oscillations in the elastic pp differential cross section seen in the TOTEM data at $$\sqrt{s}=13$$ s = 13 TeV on the top of the usual smooth behaviour.
Externí odkaz:
https://doaj.org/article/2786f25574ca40b8a5507ee1e147bc07
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)$$ α S ( M Z 2 ) and the masses of the charm and bottom quarks. We determine the preferred value, and accompanying uncerta
Externí odkaz:
https://doaj.org/article/0d10b49af0a442f0a6a421875e2dae6a
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 81, Iss 4, Pp 1-88 (2021)
Abstract We present the new MSHT20 set of parton distribution functions (PDFs) of the proton, determined from global analyses of the available hard scattering data. The PDFs are made available at NNLO, NLO, and LO, and supersede the MMHT14 sets. They
Externí odkaz:
https://doaj.org/article/9a46be61d70049f484ad887c9622b82c
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 81, Iss 2, Pp 1-14 (2021)
Abstract We describe a QCD based model which incorporates the main properties of the inclusive particle distributions expected for diffractive processes, including the diffractive dissociation at high energies. We study, in turn, the total cross sect
Externí odkaz:
https://doaj.org/article/de198d0308104b439ca12593e25ae074
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 80, Iss 3, Pp 1-11 (2020)
Abstract We study the rapidity dependence of the central exclusive production cross sections of C-even mesons in pA and AA collisions, where A is a heavy ion. We observe qualitatively different behaviour of the contributions arising from $$\gamma $$
Externí odkaz:
https://doaj.org/article/7c76a98dddf24ab286e8171036aeddd6
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 79, Iss 10, Pp 1-32 (2019)
Abstract We present the MMHT2015qed PDF set, resulting from the inclusion of QED corrections to the existing set of MMHT Parton Distribution Functions (PDFs), and which contain the photon PDF of the proton. Adopting an input distribution from the LUX
Externí odkaz:
https://doaj.org/article/540d826c14c24e4a9e1573f75342ffe2
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 79, Iss 7, Pp 1-9 (2019)
Abstract We consider the central exclusive production of high $$E_T$$ ET jets $$pp\rightarrow p+(X+\mathrm{dijet})+p$$ pp→p+(X+dijet)+p . In particular we study the possible contamination of the purely exclusive signal by semi-exclusive production
Externí odkaz:
https://doaj.org/article/d009722625604876a91e89ae217e0b20
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 79, Iss 1, Pp 1-8 (2019)
Abstract We address a long standing problem concerning the scale behaviour of parton densities in the low x, low $$Q^2$$ Q2 domain. We emphasize the important role of absorptive corrections at low x and use knowledge of diffractive deep inelastic sca
Externí odkaz:
https://doaj.org/article/154a69c748f6432aba3c8963943cadab
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 78, Iss 3, Pp 1-14 (2018)
Abstract We investigate the impact of the high precision ATLAS and CMS 7 TeV measurements of inclusive jet production on the MMHT global PDF analysis at next-to-next-to-leading order (NNLO). This is made possible by the recent completion of the long-
Externí odkaz:
https://doaj.org/article/6c614970ab3445c2918d422220fd6cd8