English
Related papers

Related papers: The Path to Proton Structure at One-Percent Accura…

200 papers

We present Fanto10, a new ensemble of NLO error parton distribution functions (PDFs) in a charged pion that provides the most detailed estimate of uncertainties from experimental, theoretical, and methodological sources in order to enable…

High Energy Physics - Phenomenology · Physics 2025-05-21 Lucas Kotz , Aurore Courtoy , Pavel Nadolsky , Maximiliano Ponce-Chavez

In this review talk I discuss the latest developments in the DGLAP-based global analysis of nuclear parton distribution functions (nPDFs), focusing on the recent EPS09, nCTEQ and DSSZ global fits. I also briefly review the recent analysis…

High Energy Physics - Phenomenology · Physics 2012-09-10 Kari J. Eskola

The HERAPDF2.0 ensemble of parton distribution functions (PDFs) was introduced in 2015. The final stage is presented, a next-to-next-to-leading-order (NNLO) analysis of the HERA data on inclusive deep inelastic $ep$ scattering together with…

High Energy Physics - Experiment · Physics 2021-12-03 H1 , ZEUS Collaborations , : , I. Abt , R. Aggarwal , V. Andreev , M. Arratia , V. Aushev , A. Baghdasaryan , A. Baty , K. Begzsuren , O. Behnke , A. Belousov , A. Bertolin , I. Bloch , V. Boudry , G. Brandt , I. Brock , N. H. Brook , R. Brugnera , A. Bruni , A. Buniatyan , P. J. Bussey , L. Bystritskaya , A. Caldwell , A. J. Campbell , K. B. Cantun Avila , C. D. Catterall , K. Cerny , V. Chekelian , Z. Chen , J. Chwastowski , J. Ciborowski , R. Ciesielski , J. G. Contreras , A. M. Cooper-Sarkar , M. Corradi , L. Cunqueiro Mendez , J. Currie , J. Cvach , J. B. Dainton , K. Daum , R. K. Dementiev , A. Deshpande , C. Diaconu , S. Dusini , G. Eckerlin , S. Egli , E. Elsen , L. Favart , A. Fedotov , J. Feltesse , J. Ferrando , M. Fleischer , A. Fomenko , B. Foster , C. Gal , E. Gallo , D. Gangadharan , A. Garfagnini , J. Gayler , A. Gehrmann-De Ridder , T. Gehrmann , A. Geiser , L. K. Gladilin , E. W. N. Glover , L. Goerlich , N. Gogitidze , Yu. A. Golubkov , M. Gouzevitch , C. Grab , T. Greenshaw , G. Grindhammer , G. Grzelak , C. Gwenlan , D. Haidt , R. C. W. Henderson , J. Hladký , D. Hochman , D. Hoffmann , R. Horisberger , T. Hreus , F. Huber , A. Huss , P. M. Jacobs , M. Jacquet , T. Janssen , N. Z. Jomhari , A. W. Jung , H. Jung , I. Kadenko , M. Kapichine , U. Karshon , J. Katzy , P. Kaur , C. Kiesling , R. Klanner , M. Klein , U. Klein , C. Kleinwort , H. T. Klest , R. Kogler , I. A. Korzhavina , P. Kostka , N. Kovalchuk , J. Kretzschmar , D. Krücker , K. Krüger , M. Kuze , M. P. J. Landon , W. Lange , P. Laycock , S. H. Lee , B. B. Levchenko , S. Levonian , A. Levy , W. Li , J. Lin , K. Lipka , B. List , J. List , B. Lobodzinski , B. Löhr , E. Lohrmann , O. R. Long , A. Longhin , F. Lorkowski , O. Yu. Lukina , I. Makarenko , E. Malinovski , J. Malka , H. -U. Martyn , S. Masciocchi , S. J. Maxfield , A. Mehta , A. B. Meyer , J. Meyer , S. Mikocki , V. M. Mikuni , M. M. Mondal , T. Morgan , A. Morozov , K. Mueller , B. Nachman , K. Nagano , J. D. Nam , Th. Naumann , P. R. Newman , C. Niebuhr , J. Niehues , G. Nowak , J. E. Olsson , Yu. Onishchuk , D. Ozerov , S. Park , C. Pascaud , G. D. Patel , E. Paul , E. Perez , A. Petrukhin , I. Picuric , I. Pidhurskyi , J. Pires , D. Pitzl , R. Polifka , A. Polini , S. Preins , M. Przybycień , A. Quintero , K. Rabbertz , V. Radescu , N. Raicevic , T. Ravdandorj , P. Reimer , E. Rizvi , P. Robmann , R. Roosen , A. Rostovtsev , M. Rotaru , M. Ruspa , D. P. C. Sankey , M. Sauter , E. Sauvan , S. Schmitt , B. A. Schmookler , U. Schneekloth , L. Schoeffel , A. Schöning , T. Schörner-Sadenius , F. Sefkow , I. Selyuzhenkov , M. Shchedrolosiev , L. M. Shcheglova , S. Shushkevich , I. O. Skillicorn , W. Słomiński , A. Solano , Y. Soloviev , P. Sopicki , D. South , V. Spaskov , A. Specka , L. Stanco , M. Steder , N. Stefaniuk , B. Stella , U. Straumann , C. Sun , B. Surrow , M. R. Sutton , T. Sykora , P. D. Thompson , K. Tokushuku , D. Traynor , B. Tseepeldorj , Z. Tu , O. Turkot , T. Tymieniecka , A. Valkárová , C. Vallée , P. Van Mechelen , A. Verbytskyi , W. A. T. Wan Abdullah , D. Wegener , K. Wichmann , M. Wing , E. Wünsch , S. Yamada , Y. Yamazaki , J. Žáček , A. F. Żarnecki , O. Zenaiev , J. Zhang , Z. Zhang , R. Žlebčík , H. Zohrabyan , F. Zomer

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…

High Energy Physics - Phenomenology · Physics 2021-05-10 L. A. Harland-Lang , A. D. Martin , R. Nathvani , R. S. Thorne

We develop in more detail our reweighting method for incorporating new datasets in parton fits based on a Monte Carlo representation of PDFs. After revisiting the derivation of the reweighting formula, we show how to construct an unweighted…

Parton distribution functions (PDFs) with QED corrections extracted from the QED$\otimes$QCD DGLAP evolution equations in the framework of "valon" model. Our results for the PDFs with QED corrections in this phenomenological model are in…

High Energy Physics - Phenomenology · Physics 2017-10-25 Marzieh Mottaghizadeh , Fatemeh Taghavi Shahri , Parvin Eslami

A new and simple statistical approach is performed to calculate the parton distribution functions (PDFs) of the nucleon in terms of light-front kinematic variables. We do not put in any extra arbitrary parameter or corrected term by hand,…

High Energy Physics - Phenomenology · Physics 2009-03-12 Yunhua Zhang , Lijing Shao , Bo-Qiang Ma

We present three new sets of next-to-leading order parton distribution functions (PDFs) determined by global fits to a wide variety of data for hard scattering processes. The analysis includes target mass and higher twist corrections needed…

High Energy Physics - Phenomenology · Physics 2013-05-15 J. F. Owens , A. Accardi , W. Melnitchouk

Beyond leading-order, perturbative QCD requires a choice of factorisation scheme to define the parton distribution functions (PDFs) and hard-process cross-section. The modified minimal-subtraction ($\overline{\mathrm{MS}}$) scheme has long…

High Energy Physics - Phenomenology · Physics 2025-05-12 Stéphane Delorme , Aleksander Kusina , Andrzej Siódmok , James Whitehead

In the framework of quantum chromodynamics (QCD), parton distribution functions (PDFs) quantify how the momentum and spin of a hadron are divided among its quark and gluon constituents. Two main approaches exist to determine PDFs. The first…

We present sets of parton distribution functions (PDFs), based on the NNPDF3.0 family, which include the photon PDF from the NNPDF2.3QED sets, and leading-order QED contributions to the DGLAP evolution as implemented in the public code…

High Energy Physics - Phenomenology · Physics 2016-06-29 V. Bertone , S. Carrazza

Neutrino Deep Inelastic Scattering on nuclei is an essential process to constrain the strange quark parton distribution functions in the proton. The critical component on the way to using the neutrino DIS data in a proton PDF analysis is…

High Energy Physics - Phenomenology · Physics 2015-05-20 K. Kovarik

Quantitatively connecting properties of parton distribution functions (PDFs, or parton densities) to the theoretical assumptions made within the QCD analyses which produce them has been a longstanding problem in HEP phenomenology. To…

High Energy Physics - Phenomenology · Physics 2024-07-08 Brandon Kriesten , Jonathan Gomprecht , T. J. Hobbs

We extract the ratio of the down (d) and up (u) parton distribution functions (PDF's) from the ratio of NMC deuteron and proton structure function F_2(d)/F_2(p), using corrections for nuclear binding effects in the deuteron, which are…

High Energy Physics - Phenomenology · Physics 2007-05-23 U. K. Yang , A. Bodek

Parton distribution functions (PDFs) play a central role in calculations for the Large Hadron Collider (LHC). To gain a deeper understanding of the emergence and interplay of constraints on the PDFs in the global QCD analyses, it is…

A new ''$\mathtt{SK24}$'' non-singlet QCD analysis of the structure functions at the NNLO approximation is performed, utilizing the global fit of the data from various charged lepton scattering experiments. We extract the valence parton…

High Energy Physics - Phenomenology · Physics 2024-06-07 Javad Shahrzad , Ali Khorramian

The status of the global fits of nuclear parton distributions (nPDFs) is reviewed. In addition to comparing the contemporary analyses of nPDFs, difficulties and controversies posed by the neutrino-nucleus deeply inelastic scattering data is…

High Energy Physics - Phenomenology · Physics 2015-06-18 Hannu Paukkunen

We present a comprehensive new global QCD analysis of unpolarized parton distribution functions (PDFs) based upon proton, deuteron and $A\!=\!3$ data, including the latest inclusive deep-inelastic scattering (DIS) measurements from…

High Energy Physics - Phenomenology · Physics 2026-05-04 C. Cocuzza , W. Melnitchouk , N. Sato , A. W. Thomas

We present a determination of the strong coupling $\alpha_s(m_Z)$ from a global dataset including both fixed-target and collider data from deep-inelastic scattering and a variety of hadronic processes, with a simultaneous determination of…

The prospects for a measurement of nuclear parton distribution functions (PDFs) at the Large Hadron--Electron Collider are discussed in the light of recent progress made in the front of global analysis of nuclear PDFs.

High Energy Physics - Phenomenology · Physics 2019-08-12 Hannu Paukkunen